| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -passes=instcombine < %s | FileCheck %s |
| |
| ; This test used to cause an infinite loop in the load/store min/max bitcast |
| ; transform. |
| |
| define void @test(ptr %p, ptr %p2) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[P:%.*]], align 4 |
| ; CHECK-NEXT: [[V2:%.*]] = load i32, ptr [[P2:%.*]], align 4 |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.umin.i32(i32 [[V2]], i32 [[V]]) |
| ; CHECK-NEXT: store i32 [[TMP1]], ptr [[P]], align 4 |
| ; CHECK-NEXT: ret void |
| ; |
| %v = load i32, ptr %p, align 4 |
| %v2 = load i32, ptr %p2, align 4 |
| %cmp = icmp ult i32 %v2, %v |
| %sel = select i1 %cmp, ptr %p2, ptr %p |
| call void @llvm.memcpy.p0.p0.i64(ptr align 4 %p, ptr align 4 %sel, i64 4, i1 false) |
| ret void |
| } |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0 |
| |
| attributes #0 = { argmemonly nounwind willreturn } |
