; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=16 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=16 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM ; TODO: The old pass manager cgscc run is disabled as it causes a crash on windows which is under investigation: http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/23151 ; opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM ; NOT_CGSCC___: @dead_with_blockaddress_users.l = constant [2 x i8*] [i8* inttoptr (i32 1 to i8*), i8* inttoptr (i32 1 to i8*)] ; IS__CGSCC___: @dead_with_blockaddress_users.l = constant [2 x i8*] [i8* blockaddress(@dead_with_blockaddress_users, %lab0), i8* blockaddress(@dead_with_blockaddress_users, %end)] @dead_with_blockaddress_users.l = constant [2 x i8*] [i8* blockaddress(@dead_with_blockaddress_users, %lab0), i8* blockaddress(@dead_with_blockaddress_users, %end)] declare void @no_return_call() nofree noreturn nounwind nosync declare void @normal_call() readnone declare i32 @foo() declare i32 @foo_nounwind() nounwind declare i32 @foo_noreturn_nounwind() noreturn nounwind declare i32 @foo_noreturn() noreturn declare i32 @bar() nosync readnone ; This internal function has no live call sites, so all its BBs are considered dead, ; and nothing should be deduced for it. ;. ; NOT_CGSCC_NPM: @[[DEAD_WITH_BLOCKADDRESS_USERS_L:[a-zA-Z0-9_$"\\.-]+]] = constant [2 x i8*] [i8* inttoptr (i32 1 to i8*), i8* inttoptr (i32 1 to i8*)] ; NOT_CGSCC_NPM: @[[A1:[a-zA-Z0-9_$"\\.-]+]] = common global i8 0, align 8 ; NOT_CGSCC_NPM: @[[A2:[a-zA-Z0-9_$"\\.-]+]] = common global i8 0, align 16 ; NOT_CGSCC_NPM: @[[E:[a-zA-Z0-9_$"\\.-]+]] = global %struct.a* null ; NOT_CGSCC_NPM: @[[P:[a-zA-Z0-9_$"\\.-]+]] = global i8 0 ;. ; IS__CGSCC____: @[[DEAD_WITH_BLOCKADDRESS_USERS_L:[a-zA-Z0-9_$"\\.-]+]] = constant [2 x i8*] [i8* blockaddress(@dead_with_blockaddress_users, [[LAB0:%.*]]), i8* blockaddress(@dead_with_blockaddress_users, [[END:%.*]])] ; IS__CGSCC____: @[[A1:[a-zA-Z0-9_$"\\.-]+]] = common global i8 0, align 8 ; IS__CGSCC____: @[[A2:[a-zA-Z0-9_$"\\.-]+]] = common global i8 0, align 16 ; IS__CGSCC____: @[[E:[a-zA-Z0-9_$"\\.-]+]] = global %struct.a* null ; IS__CGSCC____: @[[P:[a-zA-Z0-9_$"\\.-]+]] = global i8 0 ;. define internal i32 @dead_internal_func(i32 %0) { ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@dead_internal_func ; IS__CGSCC____-SAME: () #[[ATTR6:[0-9]+]] { ; IS__CGSCC____-NEXT: br label [[TMP2:%.*]] ; IS__CGSCC____: 1: ; IS__CGSCC____-NEXT: ret i32 undef ; IS__CGSCC____: 2: ; IS__CGSCC____-NEXT: [[TMP3:%.*]] = phi i32 [ [[TMP6:%.*]], [[TMP2]] ], [ 1, [[TMP0:%.*]] ] ; IS__CGSCC____-NEXT: [[TMP4:%.*]] = phi i32 [ [[TMP5:%.*]], [[TMP2]] ], [ 1, [[TMP0]] ] ; IS__CGSCC____-NEXT: [[TMP5]] = mul nsw i32 [[TMP3]], [[TMP4]] ; IS__CGSCC____-NEXT: [[TMP6]] = add nuw nsw i32 [[TMP3]], 1 ; IS__CGSCC____-NEXT: [[TMP7:%.*]] = icmp eq i32 [[TMP3]], 10 ; IS__CGSCC____-NEXT: br i1 [[TMP7]], label [[TMP1:%.*]], label [[TMP2]] ; %2 = icmp slt i32 %0, 1 br i1 %2, label %3, label %5 ; <label>:3: ; preds = %5, %1 %4 = phi i32 [ 1, %1 ], [ %8, %5 ] ret i32 %4 ; <label>:5: ; preds = %1, %5 %6 = phi i32 [ %9, %5 ], [ 1, %1 ] %7 = phi i32 [ %8, %5 ], [ 1, %1 ] %8 = mul nsw i32 %6, %7 %9 = add nuw nsw i32 %6, 1 %10 = icmp eq i32 %6, %0 br i1 %10, label %3, label %5 } define i32 @volatile_load(i32*) norecurse nounwind uwtable { ; NOT_CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@volatile_load ; NOT_CGSCC_NPM-SAME: (i32* nofree noundef align 4 [[TMP0:%.*]]) #[[ATTR6:[0-9]+]] { ; NOT_CGSCC_NPM-NEXT: [[TMP2:%.*]] = load volatile i32, i32* [[TMP0]], align 4 ; NOT_CGSCC_NPM-NEXT: ret i32 [[TMP2]] ; ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn uwtable ; IS__CGSCC____-LABEL: define {{[^@]+}}@volatile_load ; IS__CGSCC____-SAME: (i32* nofree noundef align 4 [[TMP0:%.*]]) #[[ATTR7:[0-9]+]] { ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = load volatile i32, i32* [[TMP0]], align 4 ; IS__CGSCC____-NEXT: ret i32 [[TMP2]] ; %2 = load volatile i32, i32* %0, align 4 ret i32 %2 } define internal i32 @internal_load(i32*) norecurse nounwind uwtable { ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn uwtable ; IS__CGSCC____-LABEL: define {{[^@]+}}@internal_load ; IS__CGSCC____-SAME: () #[[ATTR8:[0-9]+]] { ; IS__CGSCC____-NEXT: ret i32 undef ; %2 = load i32, i32* %0, align 4 ret i32 %2 } ; TEST 1: Only first block is live. define i32 @first_block_no_return(i32 %a, i32* nonnull %ptr1, i32* %ptr2) #0 { ; CHECK: Function Attrs: nofree noreturn nosync nounwind ; CHECK-LABEL: define {{[^@]+}}@first_block_no_return ; CHECK-SAME: (i32 [[A:%.*]], i32* nocapture nofree nonnull readnone [[PTR1:%.*]], i32* nocapture nofree readnone [[PTR2:%.*]]) #[[ATTR0:[0-9]+]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @no_return_call() #[[ATTR3:[0-9]+]] ; CHECK-NEXT: unreachable ; CHECK: cond.true: ; CHECK-NEXT: unreachable ; CHECK: cond.false: ; CHECK-NEXT: unreachable ; CHECK: cond.end: ; CHECK-NEXT: unreachable ; entry: call i32 @internal_load(i32* %ptr1) call void @no_return_call() call i32 @dead_internal_func(i32 10) %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call i32 @internal_load(i32* %ptr2) %load = call i32 @volatile_load(i32* %ptr1) call void @normal_call() %call = call i32 @foo() br label %cond.end cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %cond.true %cond = phi i32 [ %call, %cond.true ], [ %call1, %cond.false ] ret i32 %cond } ; TEST 2: cond.true is dead, but cond.end is not, since cond.false is live ; This is just an example. For example we can put a sync call in a ; dead block and check if it is deduced. define i32 @dead_block_present(i32 %a, i32* %ptr1) #0 { ; CHECK-LABEL: define {{[^@]+}}@dead_block_present ; CHECK-SAME: (i32 [[A:%.*]], i32* nofree [[PTR1:%.*]]) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @no_return_call() #[[ATTR3]] ; CHECK-NEXT: unreachable ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.end: ; CHECK-NEXT: ret i32 [[CALL1]] ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @no_return_call() %call = call i32 @volatile_load(i32* %ptr1) br label %cond.end cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %cond.true %cond = phi i32 [ %call, %cond.true ], [ %call1, %cond.false ] ret i32 %cond } ; TEST 3: both cond.true and cond.false are dead, therfore cond.end is dead as well. define i32 @all_dead(i32 %a) #0 { ; CHECK: Function Attrs: noreturn ; CHECK-LABEL: define {{[^@]+}}@all_dead ; CHECK-SAME: (i32 [[A:%.*]]) #[[ATTR4:[0-9]+]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @no_return_call() #[[ATTR3]] ; CHECK-NEXT: unreachable ; CHECK: cond.false: ; CHECK-NEXT: call void @no_return_call() #[[ATTR3]] ; CHECK-NEXT: unreachable ; CHECK: cond.end: ; CHECK-NEXT: unreachable ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @no_return_call() call i32 @dead_internal_func(i32 10) %call = call i32 @foo() br label %cond.end cond.false: ; preds = %entry call void @no_return_call() call i32 @dead_internal_func(i32 10) %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %cond.true %cond = phi i32 [ %call, %cond.true ], [ %call1, %cond.false ] ret i32 %cond } declare i32 @__gxx_personality_v0(...) ; TEST 4: All blocks are live. define i32 @all_live(i32 %a) #0 { ; CHECK-LABEL: define {{[^@]+}}@all_live ; CHECK-SAME: (i32 [[A:%.*]]) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL:%.*]] = call i32 @foo_noreturn() #[[ATTR4]] ; CHECK-NEXT: unreachable ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.end: ; CHECK-NEXT: ret i32 [[CALL1]] ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @normal_call() %call = call i32 @foo_noreturn() br label %cond.end cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %cond.true %cond = phi i32 [ %call, %cond.true ], [ %call1, %cond.false ] ret i32 %cond } ; TEST 5.1 noreturn invoke instruction with a unreachable normal successor block. define i32 @invoke_noreturn(i32 %a) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-LABEL: define {{[^@]+}}@invoke_noreturn ; CHECK-SAME: (i32 [[A:%.*]]) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL:%.*]] = invoke i32 @foo_noreturn() #[[ATTR4]] ; CHECK-NEXT: to label [[CONTINUE:%.*]] unwind label [[CLEANUP:%.*]] ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.end: ; CHECK-NEXT: ret i32 [[CALL1]] ; CHECK: continue: ; CHECK-NEXT: unreachable ; CHECK: cleanup: ; CHECK-NEXT: [[RES:%.*]] = landingpad { i8*, i32 } ; CHECK-NEXT: catch i8* null ; CHECK-NEXT: ret i32 0 ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @normal_call() %call = invoke i32 @foo_noreturn() to label %continue unwind label %cleanup cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %continue %cond = phi i32 [ %call, %continue ], [ %call1, %cond.false ] ret i32 %cond continue: br label %cond.end cleanup: %res = landingpad { i8*, i32 } catch i8* null ret i32 0 } ; TEST 5.2 noreturn invoke instruction replaced by a call and an unreachable instruction ; put after it. define i32 @invoke_noreturn_nounwind(i32 %a) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-LABEL: define {{[^@]+}}@invoke_noreturn_nounwind ; CHECK-SAME: (i32 [[A:%.*]]) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL:%.*]] = call i32 @foo_noreturn_nounwind() #[[ATTR3]] ; CHECK-NEXT: unreachable ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.end: ; CHECK-NEXT: ret i32 [[CALL1]] ; CHECK: continue: ; CHECK-NEXT: unreachable ; CHECK: cleanup: ; CHECK-NEXT: unreachable ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @normal_call() %call = invoke i32 @foo_noreturn_nounwind() to label %continue unwind label %cleanup cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %continue %cond = phi i32 [ %call, %continue ], [ %call1, %cond.false ] ret i32 %cond continue: br label %cond.end cleanup: %res = landingpad { i8*, i32 } catch i8* null ret i32 0 } ; TEST 5.3 unounwind invoke instruction replaced by a call and a branch instruction put after it. define i32 @invoke_nounwind(i32 %a) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-LABEL: define {{[^@]+}}@invoke_nounwind ; CHECK-SAME: (i32 [[A:%.*]]) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL:%.*]] = call i32 @foo_nounwind() #[[ATTR2:[0-9]+]] ; CHECK-NEXT: br label [[CONTINUE:%.*]] ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.end: ; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[CALL]], [[CONTINUE]] ], [ [[CALL1]], [[COND_FALSE]] ] ; CHECK-NEXT: ret i32 [[COND]] ; CHECK: continue: ; CHECK-NEXT: br label [[COND_END]] ; CHECK: cleanup: ; CHECK-NEXT: unreachable ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @normal_call() %call = invoke i32 @foo_nounwind() to label %continue unwind label %cleanup cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %cond.end cond.end: ; preds = %cond.false, %continue %cond = phi i32 [ %call, %continue ], [ %call1, %cond.false ] ret i32 %cond continue: br label %cond.end cleanup: %res = landingpad { i8*, i32 } catch i8* null ret i32 0 } ; TEST 5.4 unounwind invoke instruction replaced by a call and a branch instruction put after it. define i32 @invoke_nounwind_phi(i32 %a) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-LABEL: define {{[^@]+}}@invoke_nounwind_phi ; CHECK-SAME: (i32 [[A:%.*]]) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL:%.*]] = call i32 @foo_nounwind() #[[ATTR2]] ; CHECK-NEXT: br label [[CONTINUE:%.*]] ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[CONTINUE]] ; CHECK: continue: ; CHECK-NEXT: [[P:%.*]] = phi i32 [ 0, [[COND_TRUE]] ], [ 1, [[COND_FALSE]] ] ; CHECK-NEXT: ret i32 [[P]] ; CHECK: cleanup: ; CHECK-NEXT: unreachable ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @normal_call() %call = invoke i32 @foo_nounwind() to label %continue unwind label %cleanup cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %continue continue: %p = phi i32 [ 0, %cond.true ], [ 1, %cond.false ] ret i32 %p cleanup: %res = landingpad { i8*, i32 } catch i8* null ret i32 0 } ; TEST 5.5 unounwind invoke instruction replaced by a call and a branch instruction put after it. define i32 @invoke_nounwind_phi_dom(i32 %a) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-LABEL: define {{[^@]+}}@invoke_nounwind_phi_dom ; CHECK-SAME: (i32 [[A:%.*]]) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[A]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] ; CHECK: cond.true: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL:%.*]] = call i32 @foo_nounwind() #[[ATTR2]] ; CHECK-NEXT: br label [[CONTINUE:%.*]] ; CHECK: cond.false: ; CHECK-NEXT: call void @normal_call() ; CHECK-NEXT: [[CALL1:%.*]] = call i32 @bar() ; CHECK-NEXT: br label [[CONTINUE]] ; CHECK: continue: ; CHECK-NEXT: [[P:%.*]] = phi i32 [ [[CALL]], [[COND_TRUE]] ], [ [[CALL1]], [[COND_FALSE]] ] ; CHECK-NEXT: ret i32 [[P]] ; CHECK: cleanup: ; CHECK-NEXT: unreachable ; entry: %cmp = icmp eq i32 %a, 0 br i1 %cmp, label %cond.true, label %cond.false cond.true: ; preds = %entry call void @normal_call() %call = invoke i32 @foo_nounwind() to label %continue unwind label %cleanup cond.false: ; preds = %entry call void @normal_call() %call1 = call i32 @bar() br label %continue continue: %p = phi i32 [ %call, %cond.true ], [ %call1, %cond.false ] ret i32 %p cleanup: %res = landingpad { i8*, i32 } catch i8* null ret i32 0 } ; TEST 6: Undefined behvior, taken from LangRef. ; FIXME: Should be able to detect undefined behavior. define void @ub(i32* %0) { ; NOT_CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@ub ; NOT_CGSCC_NPM-SAME: (i32* nocapture nofree writeonly [[TMP0:%.*]]) #[[ATTR7:[0-9]+]] { ; NOT_CGSCC_NPM-NEXT: [[POISON:%.*]] = sub nuw i32 0, 1 ; NOT_CGSCC_NPM-NEXT: [[STILL_POISON:%.*]] = and i32 [[POISON]], 0 ; NOT_CGSCC_NPM-NEXT: [[POISON_YET_AGAIN:%.*]] = getelementptr i32, i32* [[TMP0]], i32 [[STILL_POISON]] ; NOT_CGSCC_NPM-NEXT: store i32 0, i32* [[POISON_YET_AGAIN]], align 4 ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly ; IS__CGSCC____-LABEL: define {{[^@]+}}@ub ; IS__CGSCC____-SAME: (i32* nocapture nofree writeonly [[TMP0:%.*]]) #[[ATTR9:[0-9]+]] { ; IS__CGSCC____-NEXT: [[POISON:%.*]] = sub nuw i32 0, 1 ; IS__CGSCC____-NEXT: [[STILL_POISON:%.*]] = and i32 [[POISON]], 0 ; IS__CGSCC____-NEXT: [[POISON_YET_AGAIN:%.*]] = getelementptr i32, i32* [[TMP0]], i32 [[STILL_POISON]] ; IS__CGSCC____-NEXT: store i32 0, i32* [[POISON_YET_AGAIN]], align 4 ; IS__CGSCC____-NEXT: ret void ; %poison = sub nuw i32 0, 1 ; Results in a poison value. %still_poison = and i32 %poison, 0 ; 0, but also poison. %poison_yet_again = getelementptr i32, i32* %0, i32 %still_poison store i32 0, i32* %poison_yet_again ; Undefined behavior due to store to poison. ret void } define void @inf_loop() #0 { ; NOT_CGSCC_NPM: Function Attrs: nofree norecurse noreturn nosync nounwind readnone ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@inf_loop ; NOT_CGSCC_NPM-SAME: () #[[ATTR8:[0-9]+]] { ; NOT_CGSCC_NPM-NEXT: entry: ; NOT_CGSCC_NPM-NEXT: br label [[WHILE_BODY:%.*]] ; NOT_CGSCC_NPM: while.body: ; NOT_CGSCC_NPM-NEXT: br label [[WHILE_BODY]] ; ; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone ; IS__CGSCC____-LABEL: define {{[^@]+}}@inf_loop ; IS__CGSCC____-SAME: () #[[ATTR10:[0-9]+]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: br label [[WHILE_BODY:%.*]] ; IS__CGSCC____: while.body: ; IS__CGSCC____-NEXT: br label [[WHILE_BODY]] ; entry: br label %while.body while.body: ; preds = %entry, %while.body br label %while.body } ; TEST 7: Infinite loop. ; FIXME: Detect infloops, and mark affected blocks dead. define i32 @test5(i32, i32) #0 { ; CHECK: Function Attrs: nosync readnone ; CHECK-LABEL: define {{[^@]+}}@test5 ; CHECK-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR5:[0-9]+]] { ; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[TMP3]], label [[COND_IF:%.*]], label [[COND_ELSEIF:%.*]] ; CHECK: cond.if: ; CHECK-NEXT: [[TMP4:%.*]] = tail call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.elseif: ; CHECK-NEXT: unreachable ; CHECK: cond.else: ; CHECK-NEXT: unreachable ; CHECK: cond.end: ; CHECK-NEXT: ret i32 0 ; %3 = icmp sgt i32 %0, %1 br i1 %3, label %cond.if, label %cond.elseif cond.if: ; preds = %2 %4 = tail call i32 @bar() br label %cond.end cond.elseif: ; preds = %2 call void @inf_loop() %5 = icmp slt i32 %0, %1 br i1 %5, label %cond.end, label %cond.else cond.else: ; preds = %cond.elseif %6 = tail call i32 @foo() br label %cond.end cond.end: ; preds = %cond.if, %cond.else, %cond.elseif %7 = phi i32 [ %1, %cond.elseif ], [ 0, %cond.else ], [ 0, %cond.if ] ret i32 %7 } define void @rec() #0 { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readnone willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@rec ; NOT_CGSCC_NPM-SAME: () #[[ATTR9:[0-9]+]] { ; NOT_CGSCC_NPM-NEXT: entry: ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@rec ; IS__CGSCC____-SAME: () #[[ATTR11:[0-9]+]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: ret void ; entry: call void @rec() ret void } ; TEST 8: Recursion ; FIXME: everything after first block should be marked dead ; and unreachable should be put after call to @rec(). define i32 @test6(i32, i32) #0 { ; CHECK-LABEL: define {{[^@]+}}@test6 ; CHECK-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) { ; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[TMP3]], label [[COND_IF:%.*]], label [[COND_ELSEIF:%.*]] ; CHECK: cond.if: ; CHECK-NEXT: [[TMP4:%.*]] = tail call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.elseif: ; CHECK-NEXT: [[TMP5:%.*]] = icmp slt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[TMP5]], label [[COND_END]], label [[COND_ELSE:%.*]] ; CHECK: cond.else: ; CHECK-NEXT: [[TMP6:%.*]] = tail call i32 @foo() ; CHECK-NEXT: br label [[COND_END]] ; CHECK: cond.end: ; CHECK-NEXT: [[TMP7:%.*]] = phi i32 [ [[TMP1]], [[COND_ELSEIF]] ], [ 0, [[COND_ELSE]] ], [ 0, [[COND_IF]] ] ; CHECK-NEXT: ret i32 [[TMP7]] ; call void @rec() %3 = icmp sgt i32 %0, %1 br i1 %3, label %cond.if, label %cond.elseif cond.if: ; preds = %2 %4 = tail call i32 @bar() br label %cond.end cond.elseif: ; preds = %2 call void @rec() %5 = icmp slt i32 %0, %1 br i1 %5, label %cond.end, label %cond.else cond.else: ; preds = %cond.elseif %6 = tail call i32 @foo() br label %cond.end cond.end: ; preds = %cond.if, %cond.else, %cond.elseif %7 = phi i32 [ %1, %cond.elseif ], [ 0, %cond.else ], [ 0, %cond.if ] ret i32 %7 } ; TEST 9: Recursion ; FIXME: contains recursive call to itself in cond.elseif block define i32 @test7(i32, i32) #0 { ; CHECK-LABEL: define {{[^@]+}}@test7 ; CHECK-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) { ; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[TMP3]], label [[COND_IF:%.*]], label [[COND_ELSEIF:%.*]] ; CHECK: cond.if: ; CHECK-NEXT: [[TMP4:%.*]] = tail call i32 @bar() ; CHECK-NEXT: br label [[COND_END:%.*]] ; CHECK: cond.elseif: ; CHECK-NEXT: [[TMP5:%.*]] = tail call i32 @test7(i32 [[TMP0]], i32 [[TMP1]]) ; CHECK-NEXT: [[TMP6:%.*]] = icmp slt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[TMP6]], label [[COND_END]], label [[COND_ELSE:%.*]] ; CHECK: cond.else: ; CHECK-NEXT: [[TMP7:%.*]] = tail call i32 @foo() ; CHECK-NEXT: br label [[COND_END]] ; CHECK: cond.end: ; CHECK-NEXT: [[TMP8:%.*]] = phi i32 [ [[TMP1]], [[COND_ELSEIF]] ], [ 0, [[COND_ELSE]] ], [ 0, [[COND_IF]] ] ; CHECK-NEXT: ret i32 [[TMP8]] ; %3 = icmp sgt i32 %0, %1 br i1 %3, label %cond.if, label %cond.elseif cond.if: ; preds = %2 %4 = tail call i32 @bar() br label %cond.end cond.elseif: ; preds = %2 %5 = tail call i32 @test7(i32 %0, i32 %1) %6 = icmp slt i32 %0, %1 br i1 %6, label %cond.end, label %cond.else cond.else: ; preds = %cond.elseif %7 = tail call i32 @foo() br label %cond.end cond.end: ; preds = %cond.if, %cond.else, %cond.elseif %8 = phi i32 [ %1, %cond.elseif ], [ 0, %cond.else ], [ 0, %cond.if ] ret i32 %8 } ; SCC test ; ; char a1 __attribute__((aligned(8))); ; char a2 __attribute__((aligned(16))); ; ; char* f1(char* a ){ ; return a?a:f2(&a1); ; } ; char* f2(char* a){ ; return a?f1(a):f3(&a2); ; } ; ; char* f3(char* a){ ; return a?&a1: f1(&a2); ; } @a1 = common global i8 0, align 8 @a2 = common global i8 0, align 16 define internal i8* @f1(i8* readnone %0) local_unnamed_addr #0 { ; IS__CGSCC____-LABEL: define {{[^@]+}}@f1 ; IS__CGSCC____-SAME: (i8* readnone [[TMP0:%.*]]) local_unnamed_addr { ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP0]], null ; IS__CGSCC____-NEXT: br i1 [[TMP2]], label [[TMP3:%.*]], label [[TMP5:%.*]] ; IS__CGSCC____: 3: ; IS__CGSCC____-NEXT: [[TMP4:%.*]] = tail call i8* @f2(i8* nonnull @a1) ; IS__CGSCC____-NEXT: br label [[TMP5]] ; IS__CGSCC____: 5: ; IS__CGSCC____-NEXT: [[TMP6:%.*]] = phi i8* [ [[TMP4]], [[TMP3]] ], [ [[TMP0]], [[TMP1:%.*]] ] ; IS__CGSCC____-NEXT: ret i8* [[TMP6]] ; %2 = icmp eq i8* %0, null br i1 %2, label %3, label %5 ; <label>:3: ; preds = %1 %4 = tail call i8* @f2(i8* nonnull @a1) br label %5 ; <label>:5: ; preds = %1, %3 %6 = phi i8* [ %4, %3 ], [ %0, %1 ] ret i8* %6 } define internal i8* @f2(i8* readnone %0) local_unnamed_addr #0 { ; IS__CGSCC____-LABEL: define {{[^@]+}}@f2 ; IS__CGSCC____-SAME: (i8* readnone [[TMP0:%.*]]) local_unnamed_addr { ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP0]], null ; IS__CGSCC____-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]] ; IS__CGSCC____: 3: ; IS__CGSCC____-NEXT: [[TMP4:%.*]] = tail call i8* @f1(i8* nonnull [[TMP0]]) ; IS__CGSCC____-NEXT: br label [[TMP7:%.*]] ; IS__CGSCC____: 5: ; IS__CGSCC____-NEXT: [[TMP6:%.*]] = tail call i8* @f3(i8* nonnull @a2) ; IS__CGSCC____-NEXT: br label [[TMP7]] ; IS__CGSCC____: 7: ; IS__CGSCC____-NEXT: [[TMP8:%.*]] = phi i8* [ [[TMP4]], [[TMP3]] ], [ [[TMP6]], [[TMP5]] ] ; IS__CGSCC____-NEXT: ret i8* [[TMP8]] ; %2 = icmp eq i8* %0, null br i1 %2, label %5, label %3 ; <label>:3: ; preds = %1 %4 = tail call i8* @f1(i8* nonnull %0) br label %7 ; <label>:5: ; preds = %1 %6 = tail call i8* @f3(i8* nonnull @a2) br label %7 ; <label>:7: ; preds = %5, %3 %8 = phi i8* [ %4, %3 ], [ %6, %5 ] ret i8* %8 } define internal i8* @f3(i8* readnone %0) local_unnamed_addr #0 { ; IS__CGSCC____-LABEL: define {{[^@]+}}@f3 ; IS__CGSCC____-SAME: (i8* readnone [[TMP0:%.*]]) local_unnamed_addr { ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP0]], null ; IS__CGSCC____-NEXT: br i1 [[TMP2]], label [[TMP3:%.*]], label [[TMP5:%.*]] ; IS__CGSCC____: 3: ; IS__CGSCC____-NEXT: [[TMP4:%.*]] = tail call i8* @f1(i8* nonnull @a2) ; IS__CGSCC____-NEXT: br label [[TMP5]] ; IS__CGSCC____: 5: ; IS__CGSCC____-NEXT: [[TMP6:%.*]] = phi i8* [ [[TMP4]], [[TMP3]] ], [ @a1, [[TMP1:%.*]] ] ; IS__CGSCC____-NEXT: ret i8* [[TMP6]] ; %2 = icmp eq i8* %0, null br i1 %2, label %3, label %5 ; <label>:3: ; preds = %1 %4 = tail call i8* @f1(i8* nonnull @a2) br label %5 ; <label>:5: ; preds = %1, %3 %6 = phi i8* [ %4, %3 ], [ @a1, %1 ] ret i8* %6 } declare void @sink() nofree nosync nounwind willreturn define void @test_unreachable() { ; NOT_CGSCC_NPM: Function Attrs: nofree noreturn nosync nounwind ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test_unreachable ; NOT_CGSCC_NPM-SAME: () #[[ATTR0]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13:[0-9]+]] ; NOT_CGSCC_NPM-NEXT: call void @test_unreachable() #[[ATTR0]] ; NOT_CGSCC_NPM-NEXT: unreachable ; ; IS__CGSCC____: Function Attrs: nofree noreturn nosync nounwind ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_unreachable ; IS__CGSCC____-SAME: () #[[ATTR0]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15:[0-9]+]] ; IS__CGSCC____-NEXT: call void @test_unreachable() #[[ATTR0]] ; IS__CGSCC____-NEXT: unreachable ; call void @sink() call void @test_unreachable() unreachable } define linkonce_odr void @non_exact1() { ; CHECK-LABEL: define {{[^@]+}}@non_exact1() { ; CHECK-NEXT: call void @non_dead_a0() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a1() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a2() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a3() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a4() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a5() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a6() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a7() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a8() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a9() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a10() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a11() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a12() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a13() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a14() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_a15() #[[ATTR2]] ; CHECK-NEXT: call void @middle() ; CHECK-NEXT: ret void ; call void @non_dead_a0() call void @non_dead_a1() call void @non_dead_a2() call void @non_dead_a3() call void @non_dead_a4() call void @non_dead_a5() call void @non_dead_a6() call void @non_dead_a7() call void @non_dead_a8() call void @non_dead_a9() call void @non_dead_a10() call void @non_dead_a11() call void @non_dead_a12() call void @non_dead_a13() call void @non_dead_a14() call void @non_dead_a15() call void @middle() ret void } define internal void @middle() { ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@middle() { ; NOT_CGSCC_NPM-NEXT: bb0: ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b0() #[[ATTR10:[0-9]+]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b1() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b2() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b3() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: br label [[BB1:%.*]] ; NOT_CGSCC_NPM: bb1: ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b4() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b5() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b6() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b7() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: br label [[BB2:%.*]] ; NOT_CGSCC_NPM: bb2: ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b8() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b9() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b10() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b11() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: br label [[BB3:%.*]] ; NOT_CGSCC_NPM: bb3: ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b12() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b13() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b14() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: call void @non_dead_b15() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: br label [[BB4:%.*]] ; NOT_CGSCC_NPM: bb4: ; NOT_CGSCC_NPM-NEXT: call void @non_exact2() ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____-LABEL: define {{[^@]+}}@middle() { ; IS__CGSCC____-NEXT: bb0: ; IS__CGSCC____-NEXT: call void @non_dead_b0() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b1() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b2() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b3() #[[ATTR15]] ; IS__CGSCC____-NEXT: br label [[BB1:%.*]] ; IS__CGSCC____: bb1: ; IS__CGSCC____-NEXT: call void @non_dead_b4() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b5() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b6() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b7() #[[ATTR15]] ; IS__CGSCC____-NEXT: br label [[BB2:%.*]] ; IS__CGSCC____: bb2: ; IS__CGSCC____-NEXT: call void @non_dead_b8() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b9() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b10() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b11() #[[ATTR15]] ; IS__CGSCC____-NEXT: br label [[BB3:%.*]] ; IS__CGSCC____: bb3: ; IS__CGSCC____-NEXT: call void @non_dead_b12() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b13() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b14() #[[ATTR15]] ; IS__CGSCC____-NEXT: call void @non_dead_b15() #[[ATTR15]] ; IS__CGSCC____-NEXT: br label [[BB4:%.*]] ; IS__CGSCC____: bb4: ; IS__CGSCC____-NEXT: call void @non_exact2() ; IS__CGSCC____-NEXT: ret void ; bb0: call void @non_dead_b0() call void @non_dead_b1() call void @non_dead_b2() call void @non_dead_b3() br label %bb1 bb1: call void @non_dead_b4() call void @non_dead_b5() call void @non_dead_b6() call void @non_dead_b7() br label %bb2 bb2: call void @non_dead_b8() call void @non_dead_b9() call void @non_dead_b10() call void @non_dead_b11() br label %bb3 bb3: call void @non_dead_b12() call void @non_dead_b13() call void @non_dead_b14() call void @non_dead_b15() br label %bb4 bb4: call void @non_exact2() ret void } define linkonce_odr void @non_exact2() { ; CHECK-LABEL: define {{[^@]+}}@non_exact2() { ; CHECK-NEXT: call void @non_dead_c0() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c1() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c2() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c3() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c4() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c5() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c6() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c7() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c8() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c9() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c10() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c11() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c12() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c13() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c14() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_c15() #[[ATTR2]] ; CHECK-NEXT: call void @non_exact3() ; CHECK-NEXT: ret void ; call void @non_dead_c0() call void @non_dead_c1() call void @non_dead_c2() call void @non_dead_c3() call void @non_dead_c4() call void @non_dead_c5() call void @non_dead_c6() call void @non_dead_c7() call void @non_dead_c8() call void @non_dead_c9() call void @non_dead_c10() call void @non_dead_c11() call void @non_dead_c12() call void @non_dead_c13() call void @non_dead_c14() call void @non_dead_c15() call void @non_exact3() ret void } define linkonce_odr void @non_exact3() { ; CHECK-LABEL: define {{[^@]+}}@non_exact3() { ; CHECK-NEXT: call void @non_dead_d0() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d1() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d2() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d3() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d4() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d5() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d6() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d7() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d8() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d9() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d10() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d11() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d12() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d13() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d14() #[[ATTR2]] ; CHECK-NEXT: call void @non_dead_d15() #[[ATTR2]] ; CHECK-NEXT: [[NR:%.*]] = call i32 @foo_noreturn() #[[ATTR4]] ; CHECK-NEXT: unreachable ; call void @non_dead_d0() call void @non_dead_d1() call void @non_dead_d2() call void @non_dead_d3() call void @non_dead_d4() call void @non_dead_d5() call void @non_dead_d6() call void @non_dead_d7() call void @non_dead_d8() call void @non_dead_d9() call void @non_dead_d10() call void @non_dead_d11() call void @non_dead_d12() call void @non_dead_d13() call void @non_dead_d14() call void @non_dead_d15() %nr = call i32 @foo_noreturn() call void @dead_e1() ret void } define internal void @non_dead_a0() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a0 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a0 ; IS__CGSCC____-SAME: () #[[ATTR12:[0-9]+]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a1() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a1 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a1 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a2() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a2 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a2 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a3() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a3 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a3 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a4() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a4 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a4 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a5() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a5 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a5 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a6() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a6 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a6 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a7() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a7 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a7 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a8() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a8 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a8 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a9() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a9 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a9 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a10() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a10 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a10 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a11() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a11 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a11 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a12() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a12 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a12 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a13() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a13 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a13 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a14() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a14 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a14 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_a15() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_a15 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_a15 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b0() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b0 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b0 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b1() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b1 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b1 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b2() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b2 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b2 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b3() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b3 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b3 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b4() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b4 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b4 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b5() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b5 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b5 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b6() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b6 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b6 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b7() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b7 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b7 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b8() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b8 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b8 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b9() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b9 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b9 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b10() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b10 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b10 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b11() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b11 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b11 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b12() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b12 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b12 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b13() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b13 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b13 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b14() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b14 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b14 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_b15() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_b15 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_b15 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c0() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c0 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c0 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c1() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c1 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c1 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c2() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c2 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c2 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c3() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c3 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c3 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c4() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c4 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c4 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c5() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c5 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c5 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c6() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c6 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c6 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c7() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c7 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c7 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c8() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c8 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c8 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c9() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c9 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c9 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c10() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c10 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c10 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c11() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c11 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c11 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c12() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c12 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c12 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c13() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c13 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c13 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c14() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c14 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c14 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_c15() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_c15 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_c15 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d0() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d0 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d0 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d1() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d1 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d1 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d2() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d2 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d2 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d3() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d3 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d3 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d4() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d4 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d4 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d5() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d5 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d5 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d6() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d6 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d6 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d7() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d7 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d7 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d8() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d8 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d8 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d9() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d9 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d9 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d10() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d10 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d10 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d11() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d11 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d11 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d12() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d12 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d12 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d13() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d13 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d13 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d14() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d14 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d14 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @non_dead_d15() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@non_dead_d15 ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@non_dead_d15 ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @dead_e0() { call void @dead_e1() ret void } ; IS__CGSCC____-LABEL: define {{[^@]+}}@dead_e0() { ; IS__CGSCC____-NEXT: call void @dead_e1() ; IS__CGSCC____-NEXT: ret void ; define internal void @dead_e1() { call void @dead_e2() ret void } define internal void @dead_e2() { ret void } ; Verify we actually deduce information for these functions. declare void @blowup() noreturn define void @live_with_dead_entry() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { entry: invoke void @blowup() to label %live_with_dead_entry unwind label %lpad lpad: %0 = landingpad { i8*, i32 } catch i8* null br label %live_with_dead_entry live_with_dead_entry: ret void } define void @live_with_dead_entry_lp() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK: Function Attrs: nounwind ; CHECK-LABEL: define {{[^@]+}}@live_with_dead_entry_lp ; CHECK-SAME: () #[[ATTR2]] personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; CHECK-NEXT: entry: ; CHECK-NEXT: invoke void @blowup() #[[ATTR4]] ; CHECK-NEXT: to label [[LIVE_WITH_DEAD_ENTRY_DEAD:%.*]] unwind label [[LP1:%.*]] ; CHECK: lp1: ; CHECK-NEXT: [[LP:%.*]] = landingpad { i8*, i32 } ; CHECK-NEXT: catch i8* null ; CHECK-NEXT: invoke void @blowup() #[[ATTR4]] ; CHECK-NEXT: to label [[LIVE_WITH_DEAD_ENTRY_DEAD1:%.*]] unwind label [[LP2:%.*]] ; CHECK: lp2: ; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 } ; CHECK-NEXT: catch i8* null ; CHECK-NEXT: br label [[LIVE_WITH_DEAD_ENTRY:%.*]] ; CHECK: live_with_dead_entry.dead: ; CHECK-NEXT: unreachable ; CHECK: live_with_dead_entry.dead1: ; CHECK-NEXT: unreachable ; CHECK: live_with_dead_entry: ; CHECK-NEXT: ret void ; entry: invoke void @blowup() to label %live_with_dead_entry unwind label %lp1 lp1: %lp = landingpad { i8*, i32 } catch i8* null invoke void @blowup() to label %live_with_dead_entry unwind label %lp2 lp2: %0 = landingpad { i8*, i32 } catch i8* null br label %live_with_dead_entry live_with_dead_entry: ret void } define internal void @useless_arg_sink(i32* %a) { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@useless_arg_sink ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@useless_arg_sink ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @sink() ret void } define internal void @useless_arg_almost_sink(i32* %a) { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@useless_arg_almost_sink ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: call void @useless_arg_sink() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@useless_arg_almost_sink ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: call void @useless_arg_sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret void ; call void @useless_arg_sink(i32* %a) ret void } ; Check we do not annotate the function interface of this weak function. define weak_odr void @useless_arg_ext(i32* %a) { ; CHECK-LABEL: define {{[^@]+}}@useless_arg_ext ; CHECK-SAME: (i32* [[A:%.*]]) { ; CHECK-NEXT: call void @useless_arg_almost_sink() #[[ATTR2]] ; CHECK-NEXT: ret void ; call void @useless_arg_almost_sink(i32* %a) ret void } define internal void @useless_arg_ext_int(i32* %a) { ; CHECK-LABEL: define {{[^@]+}}@useless_arg_ext_int ; CHECK-SAME: (i32* [[A:%.*]]) { ; CHECK-NEXT: call void @useless_arg_ext(i32* [[A]]) ; CHECK-NEXT: ret void ; call void @useless_arg_ext(i32* %a) ret void } define void @useless_arg_ext_int_ext(i32* %a) { ; CHECK-LABEL: define {{[^@]+}}@useless_arg_ext_int_ext ; CHECK-SAME: (i32* [[A:%.*]]) { ; CHECK-NEXT: call void @useless_arg_ext_int(i32* [[A]]) ; CHECK-NEXT: ret void ; call void @useless_arg_ext_int(i32* %a) ret void } ; FIXME: We should fold terminators. define internal i32 @switch_default(i64 %i) nounwind { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@switch_default ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: entry: ; NOT_CGSCC_NPM-NEXT: switch i64 0, label [[SW_DEFAULT:%.*]] [ ; NOT_CGSCC_NPM-NEXT: i64 3, label [[RETURN:%.*]] ; NOT_CGSCC_NPM-NEXT: i64 10, label [[RETURN]] ; NOT_CGSCC_NPM-NEXT: ] ; NOT_CGSCC_NPM: sw.default: ; NOT_CGSCC_NPM-NEXT: call void @sink() #[[ATTR13]] ; NOT_CGSCC_NPM-NEXT: ret i32 undef ; NOT_CGSCC_NPM: return: ; NOT_CGSCC_NPM-NEXT: unreachable ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@switch_default ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: switch i64 0, label [[SW_DEFAULT:%.*]] [ ; IS__CGSCC____-NEXT: i64 3, label [[RETURN:%.*]] ; IS__CGSCC____-NEXT: i64 10, label [[RETURN]] ; IS__CGSCC____-NEXT: ] ; IS__CGSCC____: sw.default: ; IS__CGSCC____-NEXT: call void @sink() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret i32 123 ; IS__CGSCC____: return: ; IS__CGSCC____-NEXT: unreachable ; entry: switch i64 %i, label %sw.default [ i64 3, label %return i64 10, label %return ] sw.default: call void @sink() ret i32 123 return: ret i32 0 } define i32 @switch_default_caller() { ; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@switch_default_caller ; NOT_CGSCC_NPM-SAME: () #[[ATTR10]] { ; NOT_CGSCC_NPM-NEXT: [[CALL2:%.*]] = tail call i32 @switch_default() #[[ATTR10]] ; NOT_CGSCC_NPM-NEXT: ret i32 123 ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@switch_default_caller ; IS__CGSCC____-SAME: () #[[ATTR12]] { ; IS__CGSCC____-NEXT: [[CALL2:%.*]] = tail call noundef i32 @switch_default() #[[ATTR15]] ; IS__CGSCC____-NEXT: ret i32 [[CALL2]] ; %call2 = tail call i32 @switch_default(i64 0) ret i32 %call2 } define internal i32 @switch_default_dead(i64 %i) nounwind { ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@switch_default_dead ; IS__CGSCC____-SAME: () #[[ATTR6]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: switch i64 0, label [[SW_DEFAULT:%.*]] [ ; IS__CGSCC____-NEXT: i64 3, label [[RETURN:%.*]] ; IS__CGSCC____-NEXT: i64 10, label [[RETURN]] ; IS__CGSCC____-NEXT: ] ; IS__CGSCC____: sw.default: ; IS__CGSCC____-NEXT: ret i32 123 ; IS__CGSCC____: return: ; IS__CGSCC____-NEXT: unreachable ; entry: switch i64 %i, label %sw.default [ i64 3, label %return i64 10, label %return ] sw.default: ret i32 123 return: ret i32 0 } define i32 @switch_default_dead_caller() { ; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@switch_default_dead_caller ; NOT_CGSCC_NPM-SAME: () #[[ATTR11:[0-9]+]] { ; NOT_CGSCC_NPM-NEXT: ret i32 123 ; ; IS__CGSCC____: Function Attrs: nofree nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@switch_default_dead_caller ; IS__CGSCC____-SAME: () #[[ATTR11]] { ; IS__CGSCC____-NEXT: [[CALL2:%.*]] = tail call noundef i32 @switch_default_dead() #[[ATTR16:[0-9]+]] ; IS__CGSCC____-NEXT: ret i32 [[CALL2]] ; %call2 = tail call i32 @switch_default_dead(i64 0) ret i32 %call2 } define void @call_via_pointer_with_dead_args(i32* %a, i32* %b, void (i32*, i32*, i32*, i64, i32**)* %fp) { ; CHECK-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args ; CHECK-SAME: (i32* [[A:%.*]], i32* [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) { ; CHECK-NEXT: call void [[FP]](i32* [[A]], i32* [[B]], i32* [[A]], i64 -1, i32** null) ; CHECK-NEXT: ret void ; call void %fp(i32* %a, i32* %b, i32* %a, i64 -1, i32** null) ret void } define internal void @call_via_pointer_with_dead_args_internal_a(i32* %a, i32* %b, void (i32*, i32*, i32*, i64, i32**)* %fp) { ; CHECK-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_internal_a ; CHECK-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) [[B:%.*]]) { ; CHECK-NEXT: call void poison(i32* [[A]], i32* nonnull align 128 dereferenceable(4) [[B]], i32* [[A]], i64 -1, i32** null) ; CHECK-NEXT: ret void ; call void %fp(i32* %a, i32* %b, i32* %a, i64 -1, i32** null) ret void } define internal void @call_via_pointer_with_dead_args_internal_b(i32* %a, i32* %b, void (i32*, i32*, i32*, i64, i32**)* %fp) { ; CHECK-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_internal_b ; CHECK-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) [[B:%.*]]) { ; CHECK-NEXT: call void poison(i32* [[A]], i32* nonnull align 128 dereferenceable(4) [[B]], i32* [[A]], i64 -1, i32** null) ; CHECK-NEXT: ret void ; call void %fp(i32* %a, i32* %b, i32* %a, i64 -1, i32** null) ret void } define void @call_via_pointer_with_dead_args_caller(i32* %a, i32* %b) { ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_caller ; NOT_CGSCC_NPM-SAME: (i32* [[A:%.*]], i32* [[B:%.*]]) { ; NOT_CGSCC_NPM-NEXT: [[PTR1:%.*]] = alloca i32, align 128 ; NOT_CGSCC_NPM-NEXT: [[PTR2:%.*]] = alloca i32, align 128 ; NOT_CGSCC_NPM-NEXT: [[PTR3:%.*]] = alloca i32, align 128 ; NOT_CGSCC_NPM-NEXT: [[PTR4:%.*]] = alloca i32, align 128 ; NOT_CGSCC_NPM-NEXT: call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR1]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer) ; NOT_CGSCC_NPM-NEXT: call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR2]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer_internal_1) ; NOT_CGSCC_NPM-NEXT: call void @call_via_pointer_with_dead_args_internal_a(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR3]]) ; NOT_CGSCC_NPM-NEXT: call void @call_via_pointer_with_dead_args_internal_b(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR4]]) ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_caller ; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* [[B:%.*]]) { ; IS__CGSCC____-NEXT: [[PTR1:%.*]] = alloca i32, align 128 ; IS__CGSCC____-NEXT: [[PTR2:%.*]] = alloca i32, align 128 ; IS__CGSCC____-NEXT: [[PTR3:%.*]] = alloca i32, align 128 ; IS__CGSCC____-NEXT: [[PTR4:%.*]] = alloca i32, align 128 ; IS__CGSCC____-NEXT: call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR1]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer) ; IS__CGSCC____-NEXT: call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR2]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer_internal_1) ; IS__CGSCC____-NEXT: call void @call_via_pointer_with_dead_args_internal_a(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR3]]) ; IS__CGSCC____-NEXT: call void @call_via_pointer_with_dead_args_internal_b(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR4]]) ; IS__CGSCC____-NEXT: ret void ; %ptr1 = alloca i32, align 128 %ptr2 = alloca i32, align 128 %ptr3 = alloca i32, align 128 %ptr4 = alloca i32, align 128 call void @call_via_pointer_with_dead_args(i32* %a, i32* %ptr1, void (i32*, i32*, i32*, i64, i32**)* @called_via_pointer) call void @call_via_pointer_with_dead_args(i32* %a, i32* %ptr2, void (i32*, i32*, i32*, i64, i32**)* @called_via_pointer_internal_1) call void @call_via_pointer_with_dead_args_internal_a(i32* %b, i32* %ptr3, void (i32*, i32*, i32*, i64, i32**)* @called_via_pointer) call void @call_via_pointer_with_dead_args_internal_b(i32* %b, i32* %ptr4, void (i32*, i32*, i32*, i64, i32**)* @called_via_pointer_internal_2) ret void } define void @called_via_pointer(i32* %a, i32* %b, i32* %c, i64 %d, i32** %e) { ; CHECK-LABEL: define {{[^@]+}}@called_via_pointer ; CHECK-SAME: (i32* [[A:%.*]], i32* nocapture nofree readnone [[B:%.*]], i32* nocapture nofree readnone [[C:%.*]], i64 [[D:%.*]], i32** nocapture nofree readnone [[E:%.*]]) { ; CHECK-NEXT: entry: ; CHECK-NEXT: tail call void @use_i32p(i32* [[A]]) ; CHECK-NEXT: tail call void @use_i32p(i32* [[A]]) ; CHECK-NEXT: ret void ; entry: tail call void @use_i32p(i32* %a) tail call void @use_i32p(i32* %a) ret void } define internal void @called_via_pointer_internal_1(i32* %a, i32* %b, i32* %c, i64 %d, i32** %e) { ; CHECK-LABEL: define {{[^@]+}}@called_via_pointer_internal_1 ; CHECK-SAME: (i32* [[A:%.*]], i32* nocapture nofree readnone [[B:%.*]], i32* nocapture nofree readnone [[C:%.*]], i64 [[D:%.*]], i32** nocapture nofree readnone [[E:%.*]]) { ; CHECK-NEXT: entry: ; CHECK-NEXT: tail call void @use_i32p(i32* [[A]]) ; CHECK-NEXT: tail call void @use_i32p(i32* [[A]]) ; CHECK-NEXT: ret void ; entry: tail call void @use_i32p(i32* %a) tail call void @use_i32p(i32* %a) ret void } ; FIXME: Figure out why the MODULE has the unused arguments still define internal void @called_via_pointer_internal_2(i32* %a, i32* %b, i32* %c, i64 %d, i32** %e) { ; IS__CGSCC____-LABEL: define {{[^@]+}}@called_via_pointer_internal_2 ; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* [[B:%.*]], i32* [[C:%.*]], i64 [[D:%.*]], i32** [[E:%.*]]) { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: tail call void @use_i32p(i32* [[A]]) ; IS__CGSCC____-NEXT: tail call void @use_i32p(i32* [[A]]) ; IS__CGSCC____-NEXT: ret void ; entry: tail call void @use_i32p(i32* %a) tail call void @use_i32p(i32* %a) ret void } declare void @use_i32p(i32*) ; Allow blockaddress users define internal void @dead_with_blockaddress_users(i32* nocapture %pc) nounwind readonly { ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@dead_with_blockaddress_users ; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree nonnull readonly align 536870912 dereferenceable(4294967295) [[PC:%.*]]) ; IS__CGSCC_OPM-NEXT: entry: ; IS__CGSCC_OPM-NEXT: br label [[INDIRECTGOTO:%.*]] ; IS__CGSCC_OPM: lab0: ; IS__CGSCC_OPM-NEXT: [[INDVAR_NEXT:%.*]] = add i32 [[INDVAR:%.*]], 1 ; IS__CGSCC_OPM-NEXT: br label [[INDIRECTGOTO]] ; IS__CGSCC_OPM: end: ; IS__CGSCC_OPM-NEXT: ret void ; IS__CGSCC_OPM: indirectgoto: ; IS__CGSCC_OPM-NEXT: [[INDVAR]] = phi i32 [ [[INDVAR_NEXT]], [[LAB0:%.*]] ], [ 0, [[ENTRY:%.*]] ] ; IS__CGSCC_OPM-NEXT: [[PC_ADDR_0:%.*]] = getelementptr i32, i32* [[PC]], i32 [[INDVAR]] ; IS__CGSCC_OPM-NEXT: [[TMP1_PN:%.*]] = load i32, i32* [[PC_ADDR_0]] ; IS__CGSCC_OPM-NEXT: [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @dead_with_blockaddress_users.l, i32 0, i32 [[TMP1_PN]] ; IS__CGSCC_OPM-NEXT: [[INDIRECT_GOTO_DEST:%.*]] = load i8*, i8** [[INDIRECT_GOTO_DEST_IN]] ; IS__CGSCC_OPM-NEXT: indirectbr i8* [[INDIRECT_GOTO_DEST]], [label [[LAB0]], label %end] ; ; IS__CGSCC____: Function Attrs: nounwind readonly ; IS__CGSCC____-LABEL: define {{[^@]+}}@dead_with_blockaddress_users ; IS__CGSCC____-SAME: (i32* nocapture [[PC:%.*]]) #[[ATTR13:[0-9]+]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: br label [[INDIRECTGOTO:%.*]] ; IS__CGSCC____: lab0: ; IS__CGSCC____-NEXT: [[INDVAR_NEXT:%.*]] = add i32 [[INDVAR:%.*]], 1 ; IS__CGSCC____-NEXT: br label [[INDIRECTGOTO]] ; IS__CGSCC____: end: ; IS__CGSCC____-NEXT: ret void ; IS__CGSCC____: indirectgoto: ; IS__CGSCC____-NEXT: [[INDVAR]] = phi i32 [ [[INDVAR_NEXT]], [[LAB0:%.*]] ], [ 0, [[ENTRY:%.*]] ] ; IS__CGSCC____-NEXT: [[PC_ADDR_0:%.*]] = getelementptr i32, i32* [[PC]], i32 [[INDVAR]] ; IS__CGSCC____-NEXT: [[TMP1_PN:%.*]] = load i32, i32* [[PC_ADDR_0]], align 4 ; IS__CGSCC____-NEXT: [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @dead_with_blockaddress_users.l, i32 0, i32 [[TMP1_PN]] ; IS__CGSCC____-NEXT: [[INDIRECT_GOTO_DEST:%.*]] = load i8*, i8** [[INDIRECT_GOTO_DEST_IN]], align 8 ; IS__CGSCC____-NEXT: indirectbr i8* [[INDIRECT_GOTO_DEST]], [label [[LAB0]], label %end] ; entry: br label %indirectgoto lab0: ; preds = %indirectgoto %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] br label %indirectgoto end: ; preds = %indirectgoto ret void indirectgoto: ; preds = %lab0, %entry %indvar = phi i32 [ %indvar.next, %lab0 ], [ 0, %entry ] ; <i32> [#uses=2] %pc.addr.0 = getelementptr i32, i32* %pc, i32 %indvar ; <i32*> [#uses=1] %tmp1.pn = load i32, i32* %pc.addr.0 ; <i32> [#uses=1] %indirect.goto.dest.in = getelementptr inbounds [2 x i8*], [2 x i8*]* @dead_with_blockaddress_users.l, i32 0, i32 %tmp1.pn ; <i8**> [#uses=1] %indirect.goto.dest = load i8*, i8** %indirect.goto.dest.in ; <i8*> [#uses=1] indirectbr i8* %indirect.goto.dest, [label %lab0, label %end] } ; The code below exposed a bug that caused %call to be replaced with `undef`. %struct.a = type { %struct.a* } @e = global %struct.a* null define i32 @main() { ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@main() { ; NOT_CGSCC_NPM-NEXT: entry: ; NOT_CGSCC_NPM-NEXT: [[F:%.*]] = alloca i32, align 4 ; NOT_CGSCC_NPM-NEXT: br label [[FOR_COND_0:%.*]] ; NOT_CGSCC_NPM: for.cond.0: ; NOT_CGSCC_NPM-NEXT: [[G_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY_0:%.*]] ] ; NOT_CGSCC_NPM-NEXT: [[CMP_0:%.*]] = icmp ult i32 [[G_0]], 100 ; NOT_CGSCC_NPM-NEXT: br i1 [[CMP_0]], label [[FOR_BODY_0]], label [[FOR_END_0:%.*]] ; NOT_CGSCC_NPM: for.body.0: ; NOT_CGSCC_NPM-NEXT: [[INC]] = add nuw nsw i32 [[G_0]], 1 ; NOT_CGSCC_NPM-NEXT: br label [[FOR_COND_0]] ; NOT_CGSCC_NPM: for.end.0: ; NOT_CGSCC_NPM-NEXT: [[CALL:%.*]] = call i8* @malloc(i64 noundef 8) ; NOT_CGSCC_NPM-NEXT: store i8* [[CALL]], i8** bitcast (%struct.a** @e to i8**), align 8 ; NOT_CGSCC_NPM-NEXT: [[B:%.*]] = bitcast i8* [[CALL]] to %struct.a** ; NOT_CGSCC_NPM-NEXT: store %struct.a* null, %struct.a** [[B]], align 8 ; NOT_CGSCC_NPM-NEXT: br label [[FOR_COND_1:%.*]] ; NOT_CGSCC_NPM: for.cond.1: ; NOT_CGSCC_NPM-NEXT: [[G_1:%.*]] = phi i32 [ 0, [[FOR_END_0]] ], [ [[INC6:%.*]], [[FOR_BODY_1:%.*]] ] ; NOT_CGSCC_NPM-NEXT: [[CMP_1:%.*]] = icmp ult i32 [[G_1]], 100 ; NOT_CGSCC_NPM-NEXT: br i1 [[CMP_1]], label [[FOR_BODY_1]], label [[FOR_END_1:%.*]] ; NOT_CGSCC_NPM: for.body.1: ; NOT_CGSCC_NPM-NEXT: [[CALL4:%.*]] = call i32 (i32*, ...) bitcast (i32 (i32)* @h to i32 (i32*, ...)*)(i32* nonnull [[F]]) ; NOT_CGSCC_NPM-NEXT: [[INC6]] = add nuw nsw i32 [[G_1]], 1 ; NOT_CGSCC_NPM-NEXT: br label [[FOR_COND_1]] ; NOT_CGSCC_NPM: for.end.1: ; NOT_CGSCC_NPM-NEXT: ret i32 0 ; ; IS__CGSCC____-LABEL: define {{[^@]+}}@main() { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: br label [[FOR_COND_0:%.*]] ; IS__CGSCC____: for.cond.0: ; IS__CGSCC____-NEXT: [[G_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY_0:%.*]] ] ; IS__CGSCC____-NEXT: [[CMP_0:%.*]] = icmp ult i32 [[G_0]], 100 ; IS__CGSCC____-NEXT: br i1 [[CMP_0]], label [[FOR_BODY_0]], label [[FOR_END_0:%.*]] ; IS__CGSCC____: for.body.0: ; IS__CGSCC____-NEXT: [[INC]] = add nuw nsw i32 [[G_0]], 1 ; IS__CGSCC____-NEXT: br label [[FOR_COND_0]] ; IS__CGSCC____: for.end.0: ; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i8* @malloc(i64 noundef 8) ; IS__CGSCC____-NEXT: store i8* [[CALL]], i8** bitcast (%struct.a** @e to i8**), align 8 ; IS__CGSCC____-NEXT: [[B:%.*]] = bitcast i8* [[CALL]] to %struct.a** ; IS__CGSCC____-NEXT: store %struct.a* null, %struct.a** [[B]], align 8 ; IS__CGSCC____-NEXT: br label [[FOR_COND_1:%.*]] ; IS__CGSCC____: for.cond.1: ; IS__CGSCC____-NEXT: [[G_1:%.*]] = phi i32 [ 0, [[FOR_END_0]] ], [ [[INC6:%.*]], [[FOR_BODY_1:%.*]] ] ; IS__CGSCC____-NEXT: [[CMP_1:%.*]] = icmp ult i32 [[G_1]], 100 ; IS__CGSCC____-NEXT: br i1 [[CMP_1]], label [[FOR_BODY_1]], label [[FOR_END_1:%.*]] ; IS__CGSCC____: for.body.1: ; IS__CGSCC____-NEXT: [[INC6]] = add nuw nsw i32 [[G_1]], 1 ; IS__CGSCC____-NEXT: br label [[FOR_COND_1]] ; IS__CGSCC____: for.end.1: ; IS__CGSCC____-NEXT: ret i32 0 ; entry: %f = alloca i32 br label %for.cond.0 for.cond.0: %g.0 = phi i32 [ 0, %entry ], [ %inc, %for.body.0 ] %cmp.0 = icmp ult i32 %g.0, 100 br i1 %cmp.0, label %for.body.0, label %for.end.0 for.body.0: %inc = add nuw nsw i32 %g.0, 1 br label %for.cond.0 for.end.0: %call = call i8* @malloc(i64 8) store i8* %call, i8** bitcast (%struct.a** @e to i8**) %b = bitcast i8* %call to %struct.a** store %struct.a* null, %struct.a** %b br label %for.cond.1 for.cond.1: %g.1 = phi i32 [ 0, %for.end.0 ], [ %inc6, %for.body.1 ] %cmp.1 = icmp ult i32 %g.1, 100 br i1 %cmp.1, label %for.body.1, label %for.end.1 for.body.1: %call4 = call i32 (i32*, ...) bitcast (i32 (i32)* @h to i32 (i32*, ...)*)(i32* nonnull %f) %inc6 = add nuw nsw i32 %g.1, 1 br label %for.cond.1 for.end.1: ret i32 0 } declare noalias i8* @malloc(i64) define i32 @h(i32 %i) { ; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@h ; NOT_CGSCC_NPM-SAME: (i32 [[I:%.*]]) #[[ATTR11]] { ; NOT_CGSCC_NPM-NEXT: ret i32 0 ; ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@h ; IS__CGSCC____-SAME: (i32 [[I:%.*]]) #[[ATTR6]] { ; IS__CGSCC____-NEXT: ret i32 0 ; ret i32 0 } ; Verify we do not choke on the GEP in the unreachable block. @p = global i8 0 define void @bad_gep() { ; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@bad_gep ; NOT_CGSCC_NPM-SAME: () #[[ATTR11]] { ; NOT_CGSCC_NPM-NEXT: entry: ; NOT_CGSCC_NPM-NEXT: [[N:%.*]] = alloca i8, align 1 ; NOT_CGSCC_NPM-NEXT: [[M:%.*]] = alloca i8, align 1 ; NOT_CGSCC_NPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR14:[0-9]+]] ; NOT_CGSCC_NPM-NEXT: br label [[EXIT:%.*]] ; NOT_CGSCC_NPM: while.body: ; NOT_CGSCC_NPM-NEXT: unreachable ; NOT_CGSCC_NPM: if.then: ; NOT_CGSCC_NPM-NEXT: unreachable ; NOT_CGSCC_NPM: if.end: ; NOT_CGSCC_NPM-NEXT: unreachable ; NOT_CGSCC_NPM: exit: ; NOT_CGSCC_NPM-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR14]] ; NOT_CGSCC_NPM-NEXT: ret void ; ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@bad_gep ; IS__CGSCC____-SAME: () #[[ATTR6]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: [[N:%.*]] = alloca i8, align 1 ; IS__CGSCC____-NEXT: [[M:%.*]] = alloca i8, align 1 ; IS__CGSCC____-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR17:[0-9]+]] ; IS__CGSCC____-NEXT: br label [[EXIT:%.*]] ; IS__CGSCC____: while.body: ; IS__CGSCC____-NEXT: unreachable ; IS__CGSCC____: if.then: ; IS__CGSCC____-NEXT: unreachable ; IS__CGSCC____: if.end: ; IS__CGSCC____-NEXT: unreachable ; IS__CGSCC____: exit: ; IS__CGSCC____-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture nofree noundef nonnull dereferenceable(1) [[N]]) #[[ATTR17]] ; IS__CGSCC____-NEXT: ret void ; entry: %n = alloca i8 %m = alloca i8 call void @llvm.lifetime.start.p0i8(i64 1, i8* %n) br label %exit while.body: %call = call i1 @bad_gep_helper1(i8* %n, i8* %ptr, i8* %m) br i1 %call, label %if.then, label %if.end if.then: %0 = load i8, i8* %ptr call void @bad_gep_helper2(i8 %0) br label %if.end if.end: %ptr = getelementptr inbounds i8, i8* %ptr, i64 1 %cmp = icmp eq i8* %ptr, @p br i1 %cmp, label %exit, label %while.body exit: call void @llvm.lifetime.end.p0i8(i64 1, i8* %n) ret void } define i8 @edge_vs_block_liveness() { ; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@edge_vs_block_liveness ; NOT_CGSCC_NPM-SAME: () #[[ATTR11]] { ; NOT_CGSCC_NPM-NEXT: entry: ; NOT_CGSCC_NPM-NEXT: br i1 true, label [[B1:%.*]], label [[B2:%.*]] ; NOT_CGSCC_NPM: b1: ; NOT_CGSCC_NPM-NEXT: br label [[B2]] ; NOT_CGSCC_NPM: b2: ; NOT_CGSCC_NPM-NEXT: [[PHI:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ 1, [[B1]] ] ; NOT_CGSCC_NPM-NEXT: ret i8 1 ; ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn ; IS__CGSCC____-LABEL: define {{[^@]+}}@edge_vs_block_liveness ; IS__CGSCC____-SAME: () #[[ATTR6]] { ; IS__CGSCC____-NEXT: entry: ; IS__CGSCC____-NEXT: br i1 true, label [[B1:%.*]], label [[B2:%.*]] ; IS__CGSCC____: b1: ; IS__CGSCC____-NEXT: br label [[B2]] ; IS__CGSCC____: b2: ; IS__CGSCC____-NEXT: [[PHI:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ 1, [[B1]] ] ; IS__CGSCC____-NEXT: ret i8 1 ; entry: br i1 true, label %b1, label %b2 b1: br label %b2 b2: %phi = phi i8 [0, %entry], [1, %b1] ret i8 %phi } declare i1 @bad_gep_helper1(i8*, i8*, i8*) declare void @bad_gep_helper2(i8) declare void @llvm.lifetime.start.p0i8(i64 %0, i8* %1) declare void @llvm.lifetime.end.p0i8(i64 %0, i8* %1) ;. ; NOT_CGSCC_NPM: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind } ; NOT_CGSCC_NPM: attributes #[[ATTR1:[0-9]+]] = { readnone } ; NOT_CGSCC_NPM: attributes #[[ATTR2]] = { nounwind } ; NOT_CGSCC_NPM: attributes #[[ATTR3]] = { noreturn nounwind } ; NOT_CGSCC_NPM: attributes #[[ATTR4]] = { noreturn } ; NOT_CGSCC_NPM: attributes #[[ATTR5]] = { nosync readnone } ; NOT_CGSCC_NPM: attributes #[[ATTR6]] = { argmemonly nofree norecurse nounwind willreturn uwtable } ; NOT_CGSCC_NPM: attributes #[[ATTR7]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly } ; NOT_CGSCC_NPM: attributes #[[ATTR8]] = { nofree norecurse noreturn nosync nounwind readnone } ; NOT_CGSCC_NPM: attributes #[[ATTR9]] = { nofree nosync nounwind readnone willreturn } ; NOT_CGSCC_NPM: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn } ; NOT_CGSCC_NPM: attributes #[[ATTR11]] = { nofree norecurse nosync nounwind readnone willreturn } ; NOT_CGSCC_NPM: attributes #[[ATTR12:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn } ; NOT_CGSCC_NPM: attributes #[[ATTR13]] = { nounwind willreturn } ; NOT_CGSCC_NPM: attributes #[[ATTR14]] = { willreturn } ;. ; IS__CGSCC____: attributes #[[ATTR0]] = { nofree noreturn nosync nounwind } ; IS__CGSCC____: attributes #[[ATTR1:[0-9]+]] = { readnone } ; IS__CGSCC____: attributes #[[ATTR2]] = { nounwind } ; IS__CGSCC____: attributes #[[ATTR3]] = { noreturn nounwind } ; IS__CGSCC____: attributes #[[ATTR4]] = { noreturn } ; IS__CGSCC____: attributes #[[ATTR5]] = { nosync readnone } ; IS__CGSCC____: attributes #[[ATTR6]] = { nofree norecurse nosync nounwind readnone willreturn } ; IS__CGSCC____: attributes #[[ATTR7]] = { argmemonly nofree norecurse nounwind willreturn uwtable } ; IS__CGSCC____: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind readnone willreturn uwtable } ; IS__CGSCC____: attributes #[[ATTR9]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly } ; IS__CGSCC____: attributes #[[ATTR10]] = { nofree norecurse noreturn nosync nounwind readnone } ; IS__CGSCC____: attributes #[[ATTR11]] = { nofree nosync nounwind readnone willreturn } ; IS__CGSCC____: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn } ; IS__CGSCC____: attributes #[[ATTR13]] = { nounwind readonly } ; IS__CGSCC____: attributes #[[ATTR14:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn } ; IS__CGSCC____: attributes #[[ATTR15]] = { nounwind willreturn } ; IS__CGSCC____: attributes #[[ATTR16]] = { readnone willreturn } ; IS__CGSCC____: attributes #[[ATTR17]] = { willreturn } ;.