; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=sroa < %s | FileCheck %s
%pair = type { i32, i32 }
define i32 @test_sroa_phi_gep(i1 %cond) {
; CHECK-LABEL: @test_sroa_phi_gep(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI_SROA_PHI_SROA_SPECULATED:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ 2, [[IF_THEN]] ]
; CHECK-NEXT: ret i32 [[PHI_SROA_PHI_SROA_SPECULATED]]
;
entry:
%a = alloca %pair, align 4
%b = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
%gep_b = getelementptr inbounds %pair, ptr %b, i32 0, i32 1
store i32 1, ptr %gep_a, align 4
store i32 2, ptr %gep_b, align 4
br i1 %cond, label %if.then, label %end
if.then:
br label %end
end:
%phi = phi ptr [ %a, %entry], [ %b, %if.then ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
define i32 @test_sroa_phi_gep_non_inbound(i1 %cond) {
; CHECK-LABEL: @test_sroa_phi_gep_non_inbound(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI_SROA_PHI_SROA_SPECULATED:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ 2, [[IF_THEN]] ]
; CHECK-NEXT: ret i32 [[PHI_SROA_PHI_SROA_SPECULATED]]
;
entry:
%a = alloca %pair, align 4
%b = alloca %pair, align 4
%gep_a = getelementptr %pair, ptr %a, i32 0, i32 1
%gep_b = getelementptr %pair, ptr %b, i32 0, i32 1
store i32 1, ptr %gep_a, align 4
store i32 2, ptr %gep_b, align 4
br i1 %cond, label %if.then, label %end
if.then:
br label %end
end:
%phi = phi ptr [ %a, %entry], [ %b, %if.then ]
%gep = getelementptr %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
define i32 @test_sroa_phi_gep_poison(i1 %cond) {
; CHECK-LABEL: @test_sroa_phi_gep_poison(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [[PAIR:%.*]], align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[ENTRY:%.*]] ], [ poison, [[IF_THEN]] ]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i32 0, i32 1
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[GEP]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
entry:
%a = alloca %pair, align 4
br i1 %cond, label %if.then, label %end
if.then:
br label %end
end:
%phi = phi ptr [ %a, %entry], [ poison, %if.then ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
@g = global %pair zeroinitializer, align 4
define i32 @test_sroa_phi_gep_global(i1 %cond) {
; CHECK-LABEL: @test_sroa_phi_gep_global(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [[PAIR:%.*]], align 4
; CHECK-NEXT: [[GEP_A:%.*]] = getelementptr inbounds [[PAIR]], ptr [[A]], i32 0, i32 1
; CHECK-NEXT: store i32 1, ptr [[GEP_A]], align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[ENTRY:%.*]] ], [ @g, [[IF_THEN]] ]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i32 0, i32 1
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[GEP]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
entry:
%a = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
store i32 1, ptr %gep_a, align 4
br i1 %cond, label %if.then, label %end
if.then:
br label %end
end:
%phi = phi ptr [ %a, %entry], [ @g, %if.then ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
define i32 @test_sroa_phi_gep_arg_phi_inspt(i1 %cond) {
; CHECK-LABEL: @test_sroa_phi_gep_arg_phi_inspt(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[FOR:%.*]], label [[END:%.*]]
; CHECK: for:
; CHECK-NEXT: [[PHI_INSPT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I:%.*]], [[FOR]] ]
; CHECK-NEXT: [[I]] = add i32 [[PHI_INSPT]], 1
; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[I]], 10
; CHECK-NEXT: br i1 [[LOOP_COND]], label [[FOR]], label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI_SROA_PHI_SROA_SPECULATED:%.*]] = phi i32 [ 1, [[ENTRY]] ], [ 2, [[FOR]] ]
; CHECK-NEXT: ret i32 [[PHI_SROA_PHI_SROA_SPECULATED]]
;
entry:
%a = alloca %pair, align 4
%b = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
%gep_b = getelementptr inbounds %pair, ptr %b, i32 0, i32 1
store i32 1, ptr %gep_a, align 4
store i32 2, ptr %gep_b, align 4
br i1 %cond, label %for, label %end
for:
%phi_inspt = phi i32 [ 0, %entry ], [ %i, %for ]
%i = add i32 %phi_inspt, 1
%loop.cond = icmp ult i32 %i, 10
br i1 %loop.cond, label %for, label %end
end:
%phi = phi ptr [ %a, %entry], [ %b, %for ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
define i32 @test_sroa_phi_gep_phi_inspt(i1 %cond) {
; CHECK-LABEL: @test_sroa_phi_gep_phi_inspt(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [[PAIR:%.*]], align 4
; CHECK-NEXT: [[B:%.*]] = alloca [[PAIR]], align 4
; CHECK-NEXT: [[GEP_A:%.*]] = getelementptr inbounds [[PAIR]], ptr [[A]], i32 0, i32 1
; CHECK-NEXT: [[GEP_B:%.*]] = getelementptr inbounds [[PAIR]], ptr [[B]], i32 0, i32 1
; CHECK-NEXT: store i32 1, ptr [[GEP_A]], align 4
; CHECK-NEXT: store i32 2, ptr [[GEP_B]], align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[FOR:%.*]], label [[END:%.*]]
; CHECK: for:
; CHECK-NEXT: [[PHI_IN:%.*]] = phi ptr [ null, [[ENTRY:%.*]] ], [ [[B]], [[FOR]] ]
; CHECK-NEXT: [[PHI_INSPT:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[I:%.*]], [[FOR]] ]
; CHECK-NEXT: [[I]] = add i32 [[PHI_INSPT]], 1
; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[I]], 10
; CHECK-NEXT: br i1 [[LOOP_COND]], label [[FOR]], label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[ENTRY]] ], [ [[PHI_IN]], [[FOR]] ]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i32 0, i32 1
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[GEP]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
entry:
%a = alloca %pair, align 4
%b = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
%gep_b = getelementptr inbounds %pair, ptr %b, i32 0, i32 1
store i32 1, ptr %gep_a, align 4
store i32 2, ptr %gep_b, align 4
br i1 %cond, label %for, label %end
for:
%phi_in = phi ptr [ null, %entry ], [ %b, %for ]
%phi_inspt = phi i32 [ 0, %entry ], [ %i, %for ]
%i = add i32 %phi_inspt, 1
%loop.cond = icmp ult i32 %i, 10
br i1 %loop.cond, label %for, label %end
end:
%phi = phi ptr [ %a, %entry], [ %phi_in, %for ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
define i32 @test_sroa_gep_phi_gep(i1 %cond) {
; CHECK-LABEL: @test_sroa_gep_phi_gep(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A_SROA_0:%.*]] = alloca i32, align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[FOR:%.*]], label [[END:%.*]]
; CHECK: for:
; CHECK-NEXT: [[PHI_I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I:%.*]], [[FOR]] ]
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A_SROA_0]], [[ENTRY]] ], [ [[GEP_FOR:%.*]], [[FOR]] ]
; CHECK-NEXT: [[I]] = add i32 [[PHI_I]], 1
; CHECK-NEXT: [[GEP_FOR]] = getelementptr inbounds i32, ptr [[PHI]], i32 0
; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[I]], 10
; CHECK-NEXT: br i1 [[LOOP_COND]], label [[FOR]], label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI_END:%.*]] = phi ptr [ [[A_SROA_0]], [[ENTRY]] ], [ [[PHI]], [[FOR]] ]
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[PHI_END]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
entry:
%a = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
br i1 %cond, label %for, label %end
for:
%phi_i = phi i32 [ 0, %entry ], [ %i, %for ]
%phi = phi ptr [ %gep_a, %entry], [ %gep_for, %for ]
%i = add i32 %phi_i, 1
%gep_for = getelementptr inbounds i32, i32* %phi, i32 0
%loop.cond = icmp ult i32 %i, 10
br i1 %loop.cond, label %for, label %end
end:
%phi_end = phi ptr [ %gep_a, %entry], [ %phi, %for ]
%load = load i32, ptr %phi_end, align 4
ret i32 %load
}
define i32 @test_sroa_invoke_phi_gep(i1 %cond) personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: @test_sroa_invoke_phi_gep(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [[PAIR:%.*]], align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[CALL:%.*]], label [[END:%.*]]
; CHECK: call:
; CHECK-NEXT: [[B:%.*]] = invoke ptr @foo()
; CHECK-NEXT: to label [[END]] unwind label [[INVOKE_CATCH:%.*]]
; CHECK: end:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[ENTRY:%.*]] ], [ [[B]], [[CALL]] ]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i32 0, i32 1
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[GEP]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
; CHECK: invoke_catch:
; CHECK-NEXT: [[RES:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: catch ptr null
; CHECK-NEXT: ret i32 0
;
entry:
%a = alloca %pair, align 4
br i1 %cond, label %call, label %end
call:
%b = invoke ptr @foo()
to label %end unwind label %invoke_catch
end:
%phi = phi ptr [ %a, %entry], [ %b, %call ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
invoke_catch:
%res = landingpad { ptr, i32 }
catch ptr null
ret i32 0
}
define i32 @test_sroa_phi_gep_nonconst_idx(i1 %cond, i32 %idx) {
; CHECK-LABEL: @test_sroa_phi_gep_nonconst_idx(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [[PAIR:%.*]], align 4
; CHECK-NEXT: [[B:%.*]] = alloca [[PAIR]], align 4
; CHECK-NEXT: [[GEP_A:%.*]] = getelementptr inbounds [[PAIR]], ptr [[A]], i32 0, i32 1
; CHECK-NEXT: [[GEP_B:%.*]] = getelementptr inbounds [[PAIR]], ptr [[B]], i32 0, i32 1
; CHECK-NEXT: store i32 1, ptr [[GEP_A]], align 4
; CHECK-NEXT: store i32 2, ptr [[GEP_B]], align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[ENTRY:%.*]] ], [ [[B]], [[IF_THEN]] ]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i32 [[IDX:%.*]], i32 1
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[GEP]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
entry:
%a = alloca %pair, align 4
%b = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
%gep_b = getelementptr inbounds %pair, ptr %b, i32 0, i32 1
store i32 1, ptr %gep_a, align 4
store i32 2, ptr %gep_b, align 4
br i1 %cond, label %if.then, label %end
if.then:
br label %end
end:
%phi = phi ptr [ %a, %entry], [ %b, %if.then ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 %idx, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
define void @test_sroa_gep_phi_select_other_block(i1 %c1, i1 %c2, ptr %ptr) {
; CHECK-LABEL: @test_sroa_gep_phi_select_other_block(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [[PAIR:%.*]], align 8
; CHECK-NEXT: br label [[WHILE_BODY:%.*]]
; CHECK: while.body:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[ALLOCA]], [[ENTRY:%.*]] ], [ [[SELECT:%.*]], [[WHILE_BODY]] ]
; CHECK-NEXT: [[SELECT]] = select i1 [[C1:%.*]], ptr [[PHI]], ptr [[PTR:%.*]]
; CHECK-NEXT: br i1 [[C2:%.*]], label [[EXIT:%.*]], label [[WHILE_BODY]]
; CHECK: exit:
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i64 1
; CHECK-NEXT: unreachable
;
entry:
%alloca = alloca %pair, align 8
br label %while.body
while.body:
%phi = phi ptr [ %alloca, %entry ], [ %select, %while.body ]
%select = select i1 %c1, ptr %phi, ptr %ptr
br i1 %c2, label %exit, label %while.body
exit:
%gep = getelementptr inbounds %pair, ptr %phi, i64 1
unreachable
}
define void @test_sroa_gep_phi_select_same_block(i1 %c1, i1 %c2, ptr %ptr) {
; CHECK-LABEL: @test_sroa_gep_phi_select_same_block(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [[PAIR:%.*]], align 8
; CHECK-NEXT: br label [[WHILE_BODY:%.*]]
; CHECK: while.body:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[ALLOCA]], [[ENTRY:%.*]] ], [ [[SELECT:%.*]], [[WHILE_BODY]] ]
; CHECK-NEXT: [[SELECT]] = select i1 [[C1:%.*]], ptr [[PHI]], ptr [[PTR:%.*]]
; CHECK-NEXT: [[PHI_SROA_GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PHI]], i64 1
; CHECK-NEXT: [[PTR_SROA_GEP:%.*]] = getelementptr inbounds [[PAIR]], ptr [[PTR]], i64 1
; CHECK-NEXT: [[SELECT_SROA_SEL:%.*]] = select i1 [[C1]], ptr [[PHI_SROA_GEP]], ptr [[PTR_SROA_GEP]]
; CHECK-NEXT: br i1 [[C2:%.*]], label [[EXIT:%.*]], label [[WHILE_BODY]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
%alloca = alloca %pair, align 8
br label %while.body
while.body:
%phi = phi ptr [ %alloca, %entry ], [ %select, %while.body ]
%select = select i1 %c1, ptr %phi, ptr %ptr
%gep = getelementptr inbounds %pair, ptr %select, i64 1
br i1 %c2, label %exit, label %while.body
exit:
ret void
}
define i32 @test_sroa_gep_cast_phi_gep(i1 %cond) {
; CHECK-LABEL: @test_sroa_gep_cast_phi_gep(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A_SROA_0:%.*]] = alloca i32, align 4
; CHECK-NEXT: store i32 1065353216, ptr [[A_SROA_0]], align 4
; CHECK-NEXT: br i1 [[COND:%.*]], label [[FOR:%.*]], label [[END:%.*]]
; CHECK: for:
; CHECK-NEXT: [[PHI_I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I:%.*]], [[FOR]] ]
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A_SROA_0]], [[ENTRY]] ], [ [[GEP_FOR:%.*]], [[FOR]] ]
; CHECK-NEXT: [[I]] = add i32 [[PHI_I]], 1
; CHECK-NEXT: [[GEP_FOR]] = getelementptr inbounds float, ptr [[PHI]], i32 0
; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[I]], 10
; CHECK-NEXT: br i1 [[LOOP_COND]], label [[FOR]], label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI_END:%.*]] = phi ptr [ [[A_SROA_0]], [[ENTRY]] ], [ [[PHI]], [[FOR]] ]
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[PHI_END]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
entry:
%a = alloca %pair, align 4
%gep_a = getelementptr inbounds %pair, ptr %a, i32 0, i32 1
store float 1.0, ptr %gep_a, align 4
br i1 %cond, label %for, label %end
for:
%phi_i = phi i32 [ 0, %entry ], [ %i, %for ]
%phi = phi ptr [ %gep_a, %entry], [ %gep_for, %for ]
%i = add i32 %phi_i, 1
%gep_for = getelementptr inbounds float, float* %phi, i32 0
%loop.cond = icmp ult i32 %i, 10
br i1 %loop.cond, label %for, label %end
end:
%phi_end = phi ptr [ %gep_a, %entry], [ %phi, %for ]
%load = load i32, ptr %phi_end, align 4
ret i32 %load
}
define void @unreachable_term(i1 %c1) {
; CHECK-LABEL: @unreachable_term(
; CHECK-NEXT: [[A_SROA_0:%.*]] = alloca i32, align 4
; CHECK-NEXT: unreachable
; CHECK: bb1:
; CHECK-NEXT: br label [[BB1_I:%.*]]
; CHECK: bb1.i:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A_SROA_0]], [[BB1:%.*]] ], [ null, [[BB1_I]] ]
; CHECK-NEXT: store i32 0, ptr [[PHI]], align 1
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1_I]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: br label [[BB2:%.*]]
; CHECK: bb2:
; CHECK-NEXT: ret void
;
%a = alloca [3 x i32], align 1
unreachable
bb1:
br label %bb1.i
bb1.i:
%phi = phi ptr [ %a, %bb1 ], [ null, %bb1.i ]
store i32 0, ptr %phi, align 1
br i1 %c1, label %bb1.i, label %exit
exit:
br label %bb2
bb2:
ret void
}
define void @constant_value_phi(i1 %c1) {
; CHECK-LABEL: @constant_value_phi(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LAND_LHS_TRUE_I:%.*]]
; CHECK: land.lhs.true.i:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[COND_END_I:%.*]], label [[COND_END_I]]
; CHECK: cond.end.i:
; CHECK-NEXT: unreachable
;
entry:
%s1 = alloca [3 x i16]
%s = alloca [3 x i16]
br label %land.lhs.true.i
land.lhs.true.i: ; preds = %entry
br i1 %c1, label %cond.end.i, label %cond.end.i
cond.end.i: ; preds = %land.lhs.true.i, %land.lhs.true.i
%.pre-phi1 = phi ptr [ %s1, %land.lhs.true.i ], [ %s1, %land.lhs.true.i ]
call void @llvm.memcpy.p0.p0.i64(ptr %.pre-phi1, ptr %s, i64 3, i1 false)
%load = load i16, ptr %s
unreachable
}
define i32 @test_sroa_phi_gep_multiple_values_from_same_block(i32 %arg) {
; CHECK-LABEL: @test_sroa_phi_gep_multiple_values_from_same_block(
; CHECK-NEXT: bb.1:
; CHECK-NEXT: switch i32 [[ARG:%.*]], label [[BB_3:%.*]] [
; CHECK-NEXT: i32 1, label [[BB_2:%.*]]
; CHECK-NEXT: i32 2, label [[BB_2]]
; CHECK-NEXT: i32 3, label [[BB_4:%.*]]
; CHECK-NEXT: i32 4, label [[BB_4]]
; CHECK-NEXT: ]
; CHECK: bb.2:
; CHECK-NEXT: br label [[BB_4]]
; CHECK: bb.3:
; CHECK-NEXT: br label [[BB_4]]
; CHECK: bb.4:
; CHECK-NEXT: [[PHI_SROA_PHI_SROA_SPECULATED:%.*]] = phi i32 [ undef, [[BB_3]] ], [ undef, [[BB_2]] ], [ undef, [[BB_1:%.*]] ], [ undef, [[BB_1]] ]
; CHECK-NEXT: ret i32 [[PHI_SROA_PHI_SROA_SPECULATED]]
;
bb.1:
%a = alloca %pair, align 4
%b = alloca %pair, align 4
switch i32 %arg, label %bb.3 [
i32 1, label %bb.2
i32 2, label %bb.2
i32 3, label %bb.4
i32 4, label %bb.4
]
bb.2: ; preds = %bb.1, %bb.1
br label %bb.4
bb.3: ; preds = %bb.1
br label %bb.4
bb.4: ; preds = %bb.1, %bb.1, %bb.3, %bb.2
%phi = phi ptr [ %a, %bb.3 ], [ %a, %bb.2 ], [ %b, %bb.1 ], [ %b, %bb.1 ]
%gep = getelementptr inbounds %pair, ptr %phi, i32 0, i32 1
%load = load i32, ptr %gep, align 4
ret i32 %load
}
declare ptr @foo()
declare i32 @__gxx_personality_v0(...)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg)