; 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=2 -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=2 -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/25479/steps/test-check-all/logs/FAIL%3A%20LLVM%3A%3Anoalias.ll
; 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
; TEST 1 - negative.
; void *G;
; void *foo(){
; void *V = malloc(4);
; G = V;
; return V;
; }
@G = external global i8*
;.
; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = external global i8*
; CHECK: @[[ALIAS_OF_P:[a-zA-Z0-9_$"\\.-]+]] = external global i32*
;.
define i8* @foo() {
; CHECK-LABEL: define {{[^@]+}}@foo() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: store i8* [[TMP1]], i8** @G, align 8
; CHECK-NEXT: ret i8* [[TMP1]]
;
%1 = tail call noalias i8* @malloc(i64 4)
store i8* %1, i8** @G, align 8
ret i8* %1
}
declare noalias i8* @malloc(i64)
; TEST 2
; call noalias function in return instruction.
define i8* @return_noalias(){
; CHECK-LABEL: define {{[^@]+}}@return_noalias() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: ret i8* [[TMP1]]
;
%1 = tail call noalias i8* @malloc(i64 4)
ret i8* %1
}
define void @nocapture(i8* %a){
; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; CHECK-LABEL: define {{[^@]+}}@nocapture
; CHECK-SAME: (i8* nocapture nofree readnone [[A:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: ret void
;
ret void
}
define i8* @return_noalias_looks_like_capture(){
; CHECK-LABEL: define {{[^@]+}}@return_noalias_looks_like_capture() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: ret i8* [[TMP1]]
;
%1 = tail call noalias i8* @malloc(i64 4)
call void @nocapture(i8* %1)
ret i8* %1
}
define i16* @return_noalias_casted(){
; CHECK-LABEL: define {{[^@]+}}@return_noalias_casted() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: [[C:%.*]] = bitcast i8* [[TMP1]] to i16*
; CHECK-NEXT: ret i16* [[C]]
;
%1 = tail call noalias i8* @malloc(i64 4)
%c = bitcast i8* %1 to i16*
ret i16* %c
}
declare i8* @alias()
; TEST 3
define i8* @call_alias(){
; CHECK-LABEL: define {{[^@]+}}@call_alias() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call i8* @alias()
; CHECK-NEXT: ret i8* [[TMP1]]
;
%1 = tail call i8* @alias()
ret i8* %1
}
; TEST 4
; void *baz();
; void *foo(int a);
;
; void *bar() {
; foo(0);
; return baz();
; }
;
; void *foo(int a) {
; if (a)
; bar();
; return malloc(4);
; }
define i8* @bar() nounwind uwtable {
; NOT_CGSCC_NPM: Function Attrs: nounwind uwtable
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@bar
; NOT_CGSCC_NPM-SAME: () #[[ATTR1:[0-9]+]] {
; NOT_CGSCC_NPM-NEXT: [[TMP1:%.*]] = tail call i8* (...) @baz() #[[ATTR2:[0-9]+]]
; NOT_CGSCC_NPM-NEXT: ret i8* [[TMP1]]
;
; IS__CGSCC____: Function Attrs: nounwind uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@bar
; IS__CGSCC____-SAME: () #[[ATTR1:[0-9]+]] {
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = tail call i8* (...) @baz() #[[ATTR3:[0-9]+]]
; IS__CGSCC____-NEXT: ret i8* [[TMP1]]
;
%1 = tail call i8* (...) @baz()
ret i8* %1
}
define i8* @foo1(i32 %0) nounwind uwtable {
; NOT_CGSCC_NPM: Function Attrs: nounwind uwtable
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@foo1
; NOT_CGSCC_NPM-SAME: (i32 [[TMP0:%.*]]) #[[ATTR1]] {
; NOT_CGSCC_NPM-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP0]], 0
; NOT_CGSCC_NPM-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
; NOT_CGSCC_NPM: 3:
; NOT_CGSCC_NPM-NEXT: [[TMP4:%.*]] = tail call i8* (...) @baz() #[[ATTR2]]
; NOT_CGSCC_NPM-NEXT: br label [[TMP5]]
; NOT_CGSCC_NPM: 5:
; NOT_CGSCC_NPM-NEXT: [[TMP6:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; NOT_CGSCC_NPM-NEXT: ret i8* [[TMP6]]
;
; IS__CGSCC____: Function Attrs: nounwind uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@foo1
; IS__CGSCC____-SAME: (i32 [[TMP0:%.*]]) #[[ATTR1]] {
; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP0]], 0
; IS__CGSCC____-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
; IS__CGSCC____: 3:
; IS__CGSCC____-NEXT: [[TMP4:%.*]] = tail call i8* (...) @baz() #[[ATTR3]]
; IS__CGSCC____-NEXT: br label [[TMP5]]
; IS__CGSCC____: 5:
; IS__CGSCC____-NEXT: [[TMP6:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS__CGSCC____-NEXT: ret i8* [[TMP6]]
;
%2 = icmp eq i32 %0, 0
br i1 %2, label %5, label %3
3: ; preds = %1
%4 = tail call i8* (...) @baz()
br label %5
5: ; preds = %1, %3
%6 = tail call noalias i8* @malloc(i64 4)
ret i8* %6
}
declare i8* @baz(...) nounwind uwtable
; TEST 5
; Returning global pointer. Should not be noalias.
define i8** @getter() {
; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; CHECK-LABEL: define {{[^@]+}}@getter
; CHECK-SAME: () #[[ATTR0]] {
; CHECK-NEXT: ret i8** @G
;
ret i8** @G
}
; Returning global pointer. Should not be noalias.
define i8** @calle1(){
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@calle1
; NOT_CGSCC_NPM-SAME: () #[[ATTR0]] {
; NOT_CGSCC_NPM-NEXT: ret i8** @G
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@calle1
; IS__CGSCC____-SAME: () #[[ATTR2:[0-9]+]] {
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call noundef nonnull align 8 dereferenceable(8) i8** @getter() #[[ATTR11:[0-9]+]]
; IS__CGSCC____-NEXT: ret i8** [[TMP1]]
;
%1 = call i8** @getter()
ret i8** %1
}
; TEST 6
declare noalias i8* @strdup(i8* nocapture) nounwind
define i8* @test6() nounwind uwtable ssp {
; NOT_CGSCC_NPM: Function Attrs: nounwind ssp uwtable
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test6
; NOT_CGSCC_NPM-SAME: () #[[ATTR3:[0-9]+]] {
; NOT_CGSCC_NPM-NEXT: [[X:%.*]] = alloca [2 x i8], align 1
; NOT_CGSCC_NPM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 0
; NOT_CGSCC_NPM-NEXT: store i8 97, i8* [[ARRAYIDX]], align 1
; NOT_CGSCC_NPM-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 1
; NOT_CGSCC_NPM-NEXT: store i8 0, i8* [[ARRAYIDX1]], align 1
; NOT_CGSCC_NPM-NEXT: [[CALL:%.*]] = call noalias i8* @strdup(i8* nocapture noundef nonnull dereferenceable(2) [[ARRAYIDX]]) #[[ATTR2]]
; NOT_CGSCC_NPM-NEXT: ret i8* [[CALL]]
;
; IS__CGSCC____: Function Attrs: nounwind ssp uwtable
; IS__CGSCC____-LABEL: define {{[^@]+}}@test6
; IS__CGSCC____-SAME: () #[[ATTR4:[0-9]+]] {
; IS__CGSCC____-NEXT: [[X:%.*]] = alloca [2 x i8], align 1
; IS__CGSCC____-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 0
; IS__CGSCC____-NEXT: store i8 97, i8* [[ARRAYIDX]], align 1
; IS__CGSCC____-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 1
; IS__CGSCC____-NEXT: store i8 0, i8* [[ARRAYIDX1]], align 1
; IS__CGSCC____-NEXT: [[CALL:%.*]] = call noalias i8* @strdup(i8* nocapture noundef nonnull dereferenceable(2) [[ARRAYIDX]]) #[[ATTR3]]
; IS__CGSCC____-NEXT: ret i8* [[CALL]]
;
%x = alloca [2 x i8], align 1
%arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %x, i64 0, i64 0
store i8 97, i8* %arrayidx, align 1
%arrayidx1 = getelementptr inbounds [2 x i8], [2 x i8]* %x, i64 0, i64 1
store i8 0, i8* %arrayidx1, align 1
%call = call noalias i8* @strdup(i8* %arrayidx) nounwind
ret i8* %call
}
; TEST 7
define i8* @test7() nounwind {
; NOT_CGSCC_NPM: Function Attrs: nounwind
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test7
; NOT_CGSCC_NPM-SAME: () #[[ATTR2]] {
; NOT_CGSCC_NPM-NEXT: entry:
; NOT_CGSCC_NPM-NEXT: [[A:%.*]] = call noalias i8* @malloc(i64 noundef 4) #[[ATTR2]]
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[A]], null
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[RETURN:%.*]], label [[IF_END:%.*]]
; NOT_CGSCC_NPM: if.end:
; NOT_CGSCC_NPM-NEXT: store i8 7, i8* [[A]], align 1
; NOT_CGSCC_NPM-NEXT: br label [[RETURN]]
; NOT_CGSCC_NPM: return:
; NOT_CGSCC_NPM-NEXT: [[RETVAL_0:%.*]] = phi i8* [ [[A]], [[IF_END]] ], [ null, [[ENTRY:%.*]] ]
; NOT_CGSCC_NPM-NEXT: ret i8* [[RETVAL_0]]
;
; IS__CGSCC____: Function Attrs: nounwind
; IS__CGSCC____-LABEL: define {{[^@]+}}@test7
; IS__CGSCC____-SAME: () #[[ATTR3]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[A:%.*]] = call noalias i8* @malloc(i64 noundef 4) #[[ATTR3]]
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[A]], null
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[RETURN:%.*]], label [[IF_END:%.*]]
; IS__CGSCC____: if.end:
; IS__CGSCC____-NEXT: store i8 7, i8* [[A]], align 1
; IS__CGSCC____-NEXT: br label [[RETURN]]
; IS__CGSCC____: return:
; IS__CGSCC____-NEXT: [[RETVAL_0:%.*]] = phi i8* [ [[A]], [[IF_END]] ], [ null, [[ENTRY:%.*]] ]
; IS__CGSCC____-NEXT: ret i8* [[RETVAL_0]]
;
entry:
%A = call noalias i8* @malloc(i64 4) nounwind
%tobool = icmp eq i8* %A, null
br i1 %tobool, label %return, label %if.end
if.end:
store i8 7, i8* %A
br label %return
return:
%retval.0 = phi i8* [ %A, %if.end ], [ null, %entry ]
ret i8* %retval.0
}
; TEST 8
define i8* @test8(i32* %0) nounwind uwtable {
; CHECK: Function Attrs: nounwind uwtable
; CHECK-LABEL: define {{[^@]+}}@test8
; CHECK-SAME: (i32* [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: [[TMP2:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32* [[TMP0]], null
; CHECK-NEXT: br i1 [[TMP3]], label [[TMP4:%.*]], label [[TMP5:%.*]]
; CHECK: 4:
; CHECK-NEXT: store i8 10, i8* [[TMP2]], align 1
; CHECK-NEXT: br label [[TMP5]]
; CHECK: 5:
; CHECK-NEXT: ret i8* [[TMP2]]
;
%2 = tail call noalias i8* @malloc(i64 4)
%3 = icmp ne i32* %0, null
br i1 %3, label %4, label %5
4: ; preds = %1
store i8 10, i8* %2
br label %5
5: ; preds = %1, %4
ret i8* %2
}
; TEST 9
; Simple Argument Test
declare void @use_i8(i8* nocapture)
define internal void @test9a(i8* %a, i8* %b) {
; CHECK-LABEL: define {{[^@]+}}@test9a() {
; CHECK-NEXT: call void @use_i8(i8* noalias nocapture noundef align 4294967296 null)
; CHECK-NEXT: ret void
;
call void @use_i8(i8* null)
ret void
}
define internal void @test9b(i8* %a, i8* %b) {
; FIXME: %b should be noalias
; CHECK-LABEL: define {{[^@]+}}@test9b
; CHECK-SAME: (i8* noalias nocapture [[A:%.*]], i8* nocapture [[B:%.*]]) {
; CHECK-NEXT: call void @use_i8(i8* noalias nocapture [[A]])
; CHECK-NEXT: call void @use_i8(i8* nocapture [[B]])
; CHECK-NEXT: ret void
;
call void @use_i8(i8* %a)
call void @use_i8(i8* %b)
ret void
}
define internal void @test9c(i8* %a, i8* %b, i8* %c) {
; CHECK-LABEL: define {{[^@]+}}@test9c
; CHECK-SAME: (i8* noalias nocapture [[A:%.*]], i8* nocapture [[B:%.*]], i8* nocapture [[C:%.*]]) {
; CHECK-NEXT: call void @use_i8(i8* noalias nocapture [[A]])
; CHECK-NEXT: call void @use_i8(i8* nocapture [[B]])
; CHECK-NEXT: call void @use_i8(i8* nocapture [[C]])
; CHECK-NEXT: ret void
;
call void @use_i8(i8* %a)
call void @use_i8(i8* %b)
call void @use_i8(i8* %c)
ret void
}
define void @test9_helper(i8* %a, i8* %b) {
; CHECK-LABEL: define {{[^@]+}}@test9_helper
; CHECK-SAME: (i8* nocapture [[A:%.*]], i8* nocapture [[B:%.*]]) {
; CHECK-NEXT: tail call void @test9a()
; CHECK-NEXT: tail call void @test9a()
; CHECK-NEXT: tail call void @test9b(i8* noalias nocapture [[A]], i8* nocapture [[B]])
; CHECK-NEXT: tail call void @test9b(i8* noalias nocapture [[B]], i8* noalias nocapture [[A]])
; CHECK-NEXT: tail call void @test9c(i8* noalias nocapture [[A]], i8* nocapture [[B]], i8* nocapture [[B]])
; CHECK-NEXT: tail call void @test9c(i8* noalias nocapture [[B]], i8* noalias nocapture [[A]], i8* noalias nocapture [[A]])
; CHECK-NEXT: ret void
;
tail call void @test9a(i8* noalias %a, i8* %b)
tail call void @test9a(i8* noalias %b, i8* noalias %a)
tail call void @test9b(i8* noalias %a, i8* %b)
tail call void @test9b(i8* noalias %b, i8* noalias %a)
tail call void @test9c(i8* noalias %a, i8* %b, i8* %b)
tail call void @test9c(i8* noalias %b, i8* noalias %a, i8* noalias %a)
ret void
}
; TEST 10
; Simple CallSite Test
declare void @test10_helper_1(i8* %a)
define void @test10_helper_2(i8* noalias %a) {
; CHECK-LABEL: define {{[^@]+}}@test10_helper_2
; CHECK-SAME: (i8* noalias [[A:%.*]]) {
; CHECK-NEXT: tail call void @test10_helper_1(i8* [[A]])
; CHECK-NEXT: ret void
;
tail call void @test10_helper_1(i8* %a)
ret void
}
define void @test10(i8* noalias %a) {
; CHECK-LABEL: define {{[^@]+}}@test10
; CHECK-SAME: (i8* noalias [[A:%.*]]) {
; CHECK-NEXT: tail call void @test10_helper_1(i8* [[A]])
; CHECK-NEXT: tail call void @test10_helper_2(i8* noalias [[A]])
; CHECK-NEXT: ret void
;
; FIXME: missing noalias
tail call void @test10_helper_1(i8* %a)
tail call void @test10_helper_2(i8* %a)
ret void
}
; TEST 11
; CallSite Test
declare void @test11_helper(i8* %a, i8 *%b)
define void @test11(i8* noalias %a) {
; CHECK-LABEL: define {{[^@]+}}@test11
; CHECK-SAME: (i8* noalias [[A:%.*]]) {
; CHECK-NEXT: tail call void @test11_helper(i8* [[A]], i8* [[A]])
; CHECK-NEXT: ret void
;
tail call void @test11_helper(i8* %a, i8* %a)
ret void
}
; TEST 12
; CallSite Argument
declare void @use_nocapture(i8* nocapture)
declare void @use(i8*)
define void @test12_1() {
; CHECK-LABEL: define {{[^@]+}}@test12_1() {
; CHECK-NEXT: [[A:%.*]] = alloca i8, align 4
; CHECK-NEXT: [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) [[A]])
; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) [[A]])
; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture [[B]])
; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture [[B]])
; CHECK-NEXT: ret void
;
%A = alloca i8, align 4
%B = tail call noalias i8* @malloc(i64 4)
tail call void @use_nocapture(i8* %A)
tail call void @use_nocapture(i8* %A)
tail call void @use_nocapture(i8* %B)
tail call void @use_nocapture(i8* %B)
ret void
}
define void @test12_2(){
; CHECK-LABEL: define {{[^@]+}}@test12_2() {
; CHECK-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: tail call void @use_nocapture(i8* nocapture [[A]])
; CHECK-NEXT: tail call void @use_nocapture(i8* nocapture [[A]])
; CHECK-NEXT: tail call void @use(i8* [[A]])
; CHECK-NEXT: tail call void @use_nocapture(i8* nocapture [[A]])
; CHECK-NEXT: ret void
;
; FIXME: This should be @use_nocapture(i8* noalias [[A]])
; FIXME: This should be @use_nocapture(i8* noalias nocapture [[A]])
%A = tail call noalias i8* @malloc(i64 4)
tail call void @use_nocapture(i8* %A)
tail call void @use_nocapture(i8* %A)
tail call void @use(i8* %A)
tail call void @use_nocapture(i8* %A)
ret void
}
declare void @two_args(i8* nocapture , i8* nocapture)
define void @test12_3(){
; CHECK-LABEL: define {{[^@]+}}@test12_3() {
; CHECK-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A]])
; CHECK-NEXT: ret void
;
%A = tail call noalias i8* @malloc(i64 4)
tail call void @two_args(i8* %A, i8* %A)
ret void
}
define void @test12_4(){
; IS________OPM-LABEL: define {{[^@]+}}@test12_4() {
; IS________OPM-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[A_1:%.*]] = getelementptr i8, i8* [[A]], i64 1
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[B]])
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A]])
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A_1]])
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[B]])
; IS________OPM-NEXT: ret void
;
; NOT_TUNIT_OPM-LABEL: define {{[^@]+}}@test12_4() {
; NOT_TUNIT_OPM-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; NOT_TUNIT_OPM-NEXT: [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; NOT_TUNIT_OPM-NEXT: [[A_1:%.*]] = getelementptr i8, i8* [[A]], i64 1
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* noalias nocapture [[A]], i8* noalias nocapture [[B]])
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A]])
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A_1]])
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[B]])
; NOT_TUNIT_OPM-NEXT: ret void
;
%A = tail call noalias i8* @malloc(i64 4)
%B = tail call noalias i8* @malloc(i64 4)
%A_0 = getelementptr i8, i8* %A, i64 0
%A_1 = getelementptr i8, i8* %A, i64 1
%B_0 = getelementptr i8, i8* %B, i64 0
tail call void @two_args(i8* %A, i8* %B)
tail call void @two_args(i8* %A, i8* %A_0)
tail call void @two_args(i8* %A, i8* %A_1)
; FIXME: This should be @two_args(i8* noalias nocapture %A_0, i8* noalias nocapture %B_0)
tail call void @two_args(i8* %A_0, i8* %B_0)
ret void
}
; TEST 13
define void @use_i8_internal(i8* %a) {
; CHECK-LABEL: define {{[^@]+}}@use_i8_internal
; CHECK-SAME: (i8* nocapture [[A:%.*]]) {
; CHECK-NEXT: call void @use_i8(i8* nocapture [[A]])
; CHECK-NEXT: ret void
;
call void @use_i8(i8* %a)
ret void
}
define void @test13_use_noalias(){
; CHECK-LABEL: define {{[^@]+}}@test13_use_noalias() {
; CHECK-NEXT: [[M1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: call void @use_i8_internal(i8* noalias nocapture [[M1]])
; CHECK-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test13_use_noalias()
; IS__CGSCC_OPM-NEXT: [[M1:%.*]] = tail call noalias i8* @malloc(i64 4)
; IS__CGSCC_OPM-NEXT: [[C1:%.*]] = bitcast i8* [[M1]] to i16*
; IS__CGSCC_OPM-NEXT: [[C2:%.*]] = bitcast i16* [[C1]] to i8*
; IS__CGSCC_OPM-NEXT: call void @use_i8_internal(i8* noalias [[C2]])
; IS__CGSCC_OPM-NEXT: ret void
%m1 = tail call noalias i8* @malloc(i64 4)
%c1 = bitcast i8* %m1 to i16*
%c2 = bitcast i16* %c1 to i8*
call void @use_i8_internal(i8* %c2)
ret void
}
define void @test13_use_alias(){
; CHECK-LABEL: define {{[^@]+}}@test13_use_alias() {
; CHECK-NEXT: [[M1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: call void @use_i8_internal(i8* nocapture [[M1]])
; CHECK-NEXT: call void @use_i8_internal(i8* nocapture [[M1]])
; CHECK-NEXT: ret void
;
%m1 = tail call noalias i8* @malloc(i64 4)
%c1 = bitcast i8* %m1 to i16*
%c2a = bitcast i16* %c1 to i8*
%c2b = bitcast i16* %c1 to i8*
call void @use_i8_internal(i8* %c2a)
call void @use_i8_internal(i8* %c2b)
ret void
}
; TEST 14 i2p casts
define internal i32 @p2i(i32* %arg) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; CHECK-LABEL: define {{[^@]+}}@p2i
; CHECK-SAME: (i32* noalias nofree readnone [[ARG:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[P2I:%.*]] = ptrtoint i32* [[ARG]] to i32
; CHECK-NEXT: ret i32 [[P2I]]
;
%p2i = ptrtoint i32* %arg to i32
ret i32 %p2i
}
define i32 @i2p(i32* %arg) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@i2p
; NOT_CGSCC_NPM-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR4:[0-9]+]] {
; NOT_CGSCC_NPM-NEXT: [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) #[[ATTR9:[0-9]+]]
; NOT_CGSCC_NPM-NEXT: [[I2P:%.*]] = inttoptr i32 [[C]] to i8*
; NOT_CGSCC_NPM-NEXT: [[BC:%.*]] = bitcast i8* [[I2P]] to i32*
; NOT_CGSCC_NPM-NEXT: [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree readonly align 4 [[BC]]) #[[ATTR10:[0-9]+]]
; NOT_CGSCC_NPM-NEXT: ret i32 [[CALL]]
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind readonly willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@i2p
; IS__CGSCC____-SAME: (i32* nofree readonly [[ARG:%.*]]) #[[ATTR5:[0-9]+]] {
; IS__CGSCC____-NEXT: [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) #[[ATTR11]]
; IS__CGSCC____-NEXT: [[I2P:%.*]] = inttoptr i32 [[C]] to i8*
; IS__CGSCC____-NEXT: [[BC:%.*]] = bitcast i8* [[I2P]] to i32*
; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[BC]]) #[[ATTR12:[0-9]+]]
; IS__CGSCC____-NEXT: ret i32 [[CALL]]
;
%c = call i32 @p2i(i32* %arg)
%i2p = inttoptr i32 %c to i8*
%bc = bitcast i8* %i2p to i32*
%call = call i32 @ret(i32* %bc)
ret i32 %call
}
define internal i32 @ret(i32* %arg) {
; NOT_CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@ret
; NOT_CGSCC_NPM-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR5:[0-9]+]] {
; NOT_CGSCC_NPM-NEXT: [[L:%.*]] = load i32, i32* [[ARG]], align 4
; NOT_CGSCC_NPM-NEXT: ret i32 [[L]]
;
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@ret
; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) #[[ATTR6:[0-9]+]] {
; IS__CGSCC____-NEXT: [[L:%.*]] = load i32, i32* [[ARG]], align 4
; IS__CGSCC____-NEXT: ret i32 [[L]]
;
%l = load i32, i32* %arg
ret i32 %l
}
; Test to propagate noalias where value is assumed to be no-capture in all the
; uses possibly executed before this callsite.
; IR referred from musl/src/strtod.c file
%struct._IO_FILE = type { i32, i8*, i8*, i32 (%struct._IO_FILE*)*, i8*, i8*, i8*, i8*, i32 (%struct._IO_FILE*, i8*, i32)*, i32 (%struct._IO_FILE*, i8*, i32)*, i64 (%struct._IO_FILE*, i64, i32)*, i8*, i32, %struct._IO_FILE*, %struct._IO_FILE*, i32, i32, i32, i16, i8, i8, i32, i32, i8*, i64, i8*, i8*, i8*, [4 x i8], i64, i64, %struct._IO_FILE*, %struct._IO_FILE*, %struct.__locale_struct*, [4 x i8] }
%struct.__locale_struct = type { [6 x %struct.__locale_map*] }
%struct.__locale_map = type opaque
; Function Attrs: nounwind optsize
define internal fastcc double @strtox(i8* %s, i8** %p, i32 %prec) unnamed_addr {
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@strtox
; NOT_CGSCC_NPM-SAME: (i8* [[S:%.*]]) unnamed_addr {
; NOT_CGSCC_NPM-NEXT: entry:
; NOT_CGSCC_NPM-NEXT: [[F:%.*]] = alloca [[STRUCT__IO_FILE:%.*]], align 8
; NOT_CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast %struct._IO_FILE* [[F]] to i8*
; NOT_CGSCC_NPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture nofree noundef nonnull align 8 dereferenceable(240) [[TMP0]]) #[[ATTR11:[0-9]+]]
; NOT_CGSCC_NPM-NEXT: [[CALL:%.*]] = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull align 8 dereferenceable(240) [[F]], i8* [[S]])
; NOT_CGSCC_NPM-NEXT: call void @__shlim(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i64 noundef 0)
; NOT_CGSCC_NPM-NEXT: [[CALL1:%.*]] = call double @__floatscan(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i32 noundef 1, i32 noundef 1)
; NOT_CGSCC_NPM-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 144, i8* nocapture nofree noundef nonnull align 8 dereferenceable(240) [[TMP0]])
; NOT_CGSCC_NPM-NEXT: ret double [[CALL1]]
;
; IS__CGSCC____-LABEL: define {{[^@]+}}@strtox
; IS__CGSCC____-SAME: (i8* [[S:%.*]]) unnamed_addr {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[F:%.*]] = alloca [[STRUCT__IO_FILE:%.*]], align 8
; IS__CGSCC____-NEXT: [[TMP0:%.*]] = bitcast %struct._IO_FILE* [[F]] to i8*
; IS__CGSCC____-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture nofree noundef nonnull align 8 dereferenceable(240) [[TMP0]]) #[[ATTR13:[0-9]+]]
; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull align 8 dereferenceable(240) [[F]], i8* [[S]])
; IS__CGSCC____-NEXT: call void @__shlim(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i64 noundef 0)
; IS__CGSCC____-NEXT: [[CALL1:%.*]] = call double @__floatscan(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i32 noundef 1, i32 noundef 1)
; IS__CGSCC____-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 144, i8* nocapture nofree noundef nonnull align 8 dereferenceable(240) [[TMP0]])
; IS__CGSCC____-NEXT: ret double [[CALL1]]
;
entry:
%f = alloca %struct._IO_FILE, align 8
%0 = bitcast %struct._IO_FILE* %f to i8*
call void @llvm.lifetime.start.p0i8(i64 144, i8* nonnull %0)
%call = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull %f, i8* %s)
call void @__shlim(%struct._IO_FILE* nonnull %f, i64 0)
%call1 = call double @__floatscan(%struct._IO_FILE* nonnull %f, i32 %prec, i32 1)
call void @llvm.lifetime.end.p0i8(i64 144, i8* nonnull %0)
ret double %call1
}
; Function Attrs: nounwind optsize
define dso_local double @strtod(i8* noalias %s, i8** noalias %p) {
; CHECK-LABEL: define {{[^@]+}}@strtod
; CHECK-SAME: (i8* noalias [[S:%.*]], i8** noalias nocapture nofree readnone [[P:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CALL:%.*]] = tail call fastcc double @strtox(i8* [[S]])
; CHECK-NEXT: ret double [[CALL]]
;
entry:
%call = tail call fastcc double @strtox(i8* %s, i8** %p, i32 1)
ret double %call
}
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
; Function Attrs: optsize
declare dso_local i32 @sh_fromstring(...) local_unnamed_addr
; Function Attrs: optsize
declare dso_local void @__shlim(%struct._IO_FILE*, i64) local_unnamed_addr
; Function Attrs: optsize
declare dso_local double @__floatscan(%struct._IO_FILE*, i32, i32) local_unnamed_addr
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
; Test 15
; propagate noalias to some callsite arguments that there is no possibly reachable capture before it
@alias_of_p = external global i32*
define void @make_alias(i32* %p) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@make_alias
; NOT_CGSCC_NPM-SAME: (i32* nofree writeonly [[P:%.*]]) #[[ATTR7:[0-9]+]] {
; NOT_CGSCC_NPM-NEXT: store i32* [[P]], i32** @alias_of_p, align 8
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@make_alias
; IS__CGSCC____-SAME: (i32* nofree writeonly [[P:%.*]]) #[[ATTR8:[0-9]+]] {
; IS__CGSCC____-NEXT: store i32* [[P]], i32** @alias_of_p, align 8
; IS__CGSCC____-NEXT: ret void
;
store i32* %p, i32** @alias_of_p
ret void
}
define void @only_store(i32* %p) {
; NOT_CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@only_store
; NOT_CGSCC_NPM-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR8:[0-9]+]] {
; NOT_CGSCC_NPM-NEXT: store i32 0, i32* [[P]], align 4
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@only_store
; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) #[[ATTR9:[0-9]+]] {
; IS__CGSCC____-NEXT: store i32 0, i32* [[P]], align 4
; IS__CGSCC____-NEXT: ret void
;
store i32 0, i32* %p
ret void
}
define void @test15_caller(i32* noalias %p, i32 %c) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test15_caller
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; NOT_CGSCC_NPM: if.then:
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) #[[ATTR12:[0-9]+]]
; NOT_CGSCC_NPM-NEXT: br label [[IF_END]]
; NOT_CGSCC_NPM: if.end:
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@test15_caller
; IS__CGSCC____-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10:[0-9]+]] {
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; IS__CGSCC____: if.then:
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14:[0-9]+]]
; IS__CGSCC____-NEXT: br label [[IF_END]]
; IS__CGSCC____: if.end:
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: ret void
;
%tobool = icmp eq i32 %c, 0
br i1 %tobool, label %if.end, label %if.then
if.then:
tail call void @only_store(i32* %p)
br label %if.end
if.end:
tail call void @make_alias(i32* %p)
ret void
}
; Test 16
;
; __attribute__((noinline)) static void test16_sub(int * restrict p, int c1, int c2) {
; if (c1) {
; only_store(p);
; make_alias(p);
; }
; if (!c2) {
; only_store(p);
; }
; }
; void test16_caller(int * restrict p, int c) {
; test16_sub(p, c, c);
; }
;
; FIXME: this should be tail @only_store(i32* noalias %p)
; when test16_caller is called, c1 always equals to c2. (Note that linkage is internal)
; Therefore, only one of the two conditions of if statementes will be fulfilled.
define internal void @test16_sub(i32* noalias %p, i32 %c1, i32 %c2) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test16_sub
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C1:%.*]], i32 [[C2:%.*]]) #[[ATTR7]] {
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C1]], 0
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; NOT_CGSCC_NPM: if.then:
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly align 4 [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: br label [[IF_END]]
; NOT_CGSCC_NPM: if.end:
; NOT_CGSCC_NPM-NEXT: [[TOBOOL1:%.*]] = icmp eq i32 [[C2]], 0
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL1]], label [[IF_THEN2:%.*]], label [[IF_END3:%.*]]
; NOT_CGSCC_NPM: if.then2:
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: br label [[IF_END3]]
; NOT_CGSCC_NPM: if.end3:
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@test16_sub
; IS__CGSCC____-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C1:%.*]], i32 [[C2:%.*]]) #[[ATTR10]] {
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C1]], 0
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; IS__CGSCC____: if.then:
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: br label [[IF_END]]
; IS__CGSCC____: if.end:
; IS__CGSCC____-NEXT: [[TOBOOL1:%.*]] = icmp eq i32 [[C2]], 0
; IS__CGSCC____-NEXT: br i1 [[TOBOOL1]], label [[IF_THEN2:%.*]], label [[IF_END3:%.*]]
; IS__CGSCC____: if.then2:
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: br label [[IF_END3]]
; IS__CGSCC____: if.end3:
; IS__CGSCC____-NEXT: ret void
;
%tobool = icmp eq i32 %c1, 0
br i1 %tobool, label %if.end, label %if.then
if.then:
tail call void @only_store(i32* %p)
tail call void @make_alias(i32* %p)
br label %if.end
if.end:
%tobool1 = icmp eq i32 %c2, 0
br i1 %tobool1, label %if.then2, label %if.end3
if.then2:
tail call void @only_store(i32* %p)
br label %if.end3
if.end3:
ret void
}
define void @test16_caller(i32* %p, i32 %c) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test16_caller
; NOT_CGSCC_NPM-SAME: (i32* nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
; NOT_CGSCC_NPM-NEXT: tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@test16_caller
; IS__CGSCC____-SAME: (i32* nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10]] {
; IS__CGSCC____-NEXT: tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: ret void
;
tail call void @test16_sub(i32* %p, i32 %c, i32 %c)
ret void
}
; test 17
;
; only_store is not called after make_alias is called.
;
; void test17_caller(int* p, int c) {
; if(c) {
; make_alias(p);
; if(0 == 0) {
; goto l3;
; } else {
; goto l2;
; }
; }
; l2:
; only_store(p);
; l3:
; return;
; }
define void @test17_caller(i32* noalias %p, i32 %c) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test17_caller
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
; NOT_CGSCC_NPM-NEXT: entry:
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
; NOT_CGSCC_NPM: l1:
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: br label [[L3:%.*]]
; NOT_CGSCC_NPM: l2:
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: br label [[L3]]
; NOT_CGSCC_NPM: l3:
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@test17_caller
; IS__CGSCC____-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
; IS__CGSCC____: l1:
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: br label [[L3:%.*]]
; IS__CGSCC____: l2:
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: br label [[L3]]
; IS__CGSCC____: l3:
; IS__CGSCC____-NEXT: ret void
;
entry:
%tobool = icmp eq i32 %c, 0
br i1 %tobool, label %l1, label %l2
l1:
tail call void @make_alias(i32* %p)
%tobool2 = icmp eq i32 0, 0
br i1 %tobool2, label %l3, label %l2
l2:
tail call void @only_store(i32* %p)
br label %l3
l3:
ret void
}
; test 18
; void test18_caller(int* p, int c) {
; if(c) {
; make_alias(p);
; noreturn();
; }
; only_store(p);
; return;
; }
define void @noreturn() {
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@noreturn
; NOT_CGSCC_NPM-SAME: () #[[ATTR9]] {
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@noreturn
; IS__CGSCC____-SAME: () #[[ATTR2]] {
; IS__CGSCC____-NEXT: ret void
;
call void @noreturn()
ret void
}
define void @test18_caller(i32* noalias %p, i32 %c) {
; NOT_CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test18_caller
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) #[[ATTR7]] {
; NOT_CGSCC_NPM-NEXT: entry:
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
; NOT_CGSCC_NPM: l1:
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: br label [[L2]]
; NOT_CGSCC_NPM: l2:
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) #[[ATTR12]]
; NOT_CGSCC_NPM-NEXT: ret void
;
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
; IS__CGSCC____-LABEL: define {{[^@]+}}@test18_caller
; IS__CGSCC____-SAME: (i32* noalias nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]], i32 [[C:%.*]]) #[[ATTR10]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
; IS__CGSCC____: l1:
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: br label [[L2]]
; IS__CGSCC____: l2:
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P]]) #[[ATTR14]]
; IS__CGSCC____-NEXT: ret void
;
entry:
%tobool = icmp eq i32 %c, 0
br i1 %tobool, label %l1, label %l2
l1:
tail call void @make_alias(i32* %p)
tail call void @noreturn()
br label %l2
l2:
tail call void @only_store(i32* %p)
ret void
}
;.
; NOT_CGSCC_NPM: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR1]] = { nounwind uwtable }
; NOT_CGSCC_NPM: attributes #[[ATTR2]] = { nounwind }
; NOT_CGSCC_NPM: attributes #[[ATTR3]] = { nounwind ssp uwtable }
; NOT_CGSCC_NPM: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind readonly willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR5]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR6:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn writeonly }
; NOT_CGSCC_NPM: attributes #[[ATTR8]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
; NOT_CGSCC_NPM: attributes #[[ATTR9]] = { nofree nosync nounwind readnone willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR10]] = { nofree nosync nounwind readonly willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR11]] = { willreturn }
; NOT_CGSCC_NPM: attributes #[[ATTR12]] = { nofree nosync nounwind willreturn writeonly }
;.
; IS__CGSCC____: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
; IS__CGSCC____: attributes #[[ATTR1]] = { nounwind uwtable }
; IS__CGSCC____: attributes #[[ATTR2]] = { nofree nosync nounwind readnone willreturn }
; IS__CGSCC____: attributes #[[ATTR3]] = { nounwind }
; IS__CGSCC____: attributes #[[ATTR4]] = { nounwind ssp uwtable }
; IS__CGSCC____: attributes #[[ATTR5]] = { nofree nosync nounwind readonly willreturn }
; IS__CGSCC____: attributes #[[ATTR6]] = { argmemonly nofree norecurse nosync nounwind readonly willreturn }
; IS__CGSCC____: attributes #[[ATTR7:[0-9]+]] = { argmemonly nocallback nofree nosync nounwind willreturn }
; IS__CGSCC____: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind willreturn writeonly }
; IS__CGSCC____: attributes #[[ATTR9]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
; IS__CGSCC____: attributes #[[ATTR10]] = { nofree nosync nounwind willreturn writeonly }
; IS__CGSCC____: attributes #[[ATTR11]] = { readnone willreturn }
; IS__CGSCC____: attributes #[[ATTR12]] = { readonly willreturn }
; IS__CGSCC____: attributes #[[ATTR13]] = { willreturn }
; IS__CGSCC____: attributes #[[ATTR14]] = { nounwind willreturn writeonly }
;.