1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -instcombine < %s | FileCheck %s
4 ; This test used to cause an infinite loop in the load/store min/max bitcast
7 define void @test(i32* %p, i32* %p2) {
9 ; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]], align 4
10 ; CHECK-NEXT: [[V2:%.*]] = load i32, i32* [[P2:%.*]], align 4
11 ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[V2]], [[V]]
12 ; CHECK-NEXT: [[TMP1:%.*]] = select i1 [[CMP]], i32 [[V2]], i32 [[V]]
13 ; CHECK-NEXT: store i32 [[TMP1]], i32* [[P]], align 4
14 ; CHECK-NEXT: ret void
16 %v = load i32, i32* %p, align 4
17 %v2 = load i32, i32* %p2, align 4
18 %cmp = icmp ult i32 %v2, %v
19 %sel = select i1 %cmp, i32* %p2, i32* %p
20 %p8 = bitcast i32* %p to i8*
21 %sel8 = bitcast i32* %sel to i8*
22 call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %p8, i8* align 4 %sel8, i64 4, i1 false)
26 ; Function Attrs: argmemonly nounwind willreturn
27 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg) #0
29 attributes #0 = { argmemonly nounwind willreturn }