xref: /llvm-project/llvm/test/Transforms/InstCombine/phi-int-users.ll (revision 5b40a05d8f2872e4822fd5ff18383fbd5944f511)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
2; RUN: opt -S < %s -passes=instcombine | FileCheck %s
3
4; Verify that instcombine doesn't look at users of Constant in different
5; functions for dominates() queries.
6
7define void @f1(i1 %a) {
8; CHECK-LABEL: define void @f1(
9; CHECK-SAME: i1 [[A:%.*]]) {
10; CHECK-NEXT:    br label %[[BB1:.*]]
11; CHECK:       [[BB1]]:
12; CHECK-NEXT:    br i1 [[A]], label %[[BB3:.*]], label %[[BB2:.*]]
13; CHECK:       [[BB2]]:
14; CHECK-NEXT:    br label %[[BB3]]
15; CHECK:       [[BB3]]:
16; CHECK-NEXT:    [[PHI:%.*]] = phi i64 [ 0, %[[BB2]] ], [ 1, %[[BB1]] ]
17; CHECK-NEXT:    [[INTTOPTR:%.*]] = inttoptr i64 [[PHI]] to ptr
18; CHECK-NEXT:    store i32 0, ptr [[INTTOPTR]], align 4
19; CHECK-NEXT:    br label %[[BB1]]
20;
21  br label %bb1
22
23bb1:
24  br i1 %a, label %bb3, label %bb2
25
26bb2:
27  br label %bb3
28
29bb3:
30  %phi = phi i64 [ 0, %bb2 ], [ 1, %bb1 ]
31  %inttoptr = inttoptr i64 %phi to ptr
32  store i32 0, ptr %inttoptr, align 4
33  br label %bb1
34}
35
36define void @f2() {
37; CHECK-LABEL: define void @f2() {
38; CHECK-NEXT:  [[BB:.*:]]
39; CHECK-NEXT:    ret void
40;
41bb:
42  %inttoptr = inttoptr i64 0 to ptr
43  ret void
44}
45