| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 |
| ; RUN: opt < %s -passes=gvn -S | FileCheck %s |
| |
| define i8 @test() nounwind { |
| ; CHECK-LABEL: define i8 @test( |
| ; CHECK-SAME: ) #[[ATTR0:[0-9]+]] { |
| ; CHECK-NEXT: [[ENTRY:.*:]] |
| ; CHECK-NEXT: [[P:%.*]] = alloca [32 x i8], align 1 |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 32, ptr [[P]]) |
| ; CHECK-NEXT: store i8 1, ptr [[P]], align 1 |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 32, ptr [[P]]) |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[P]], align 1 |
| ; CHECK-NEXT: ret i8 [[TMP0]] |
| ; |
| entry: |
| %P = alloca [32 x i8] |
| call void @llvm.lifetime.start.p0(i64 32, ptr %P) |
| %0 = load i8, ptr %P |
| store i8 1, ptr %P |
| call void @llvm.lifetime.end.p0(i64 32, ptr %P) |
| %1 = load i8, ptr %P |
| ret i8 %1 |
| } |
| |
| declare void @llvm.lifetime.start.p0(i64 %S, ptr nocapture %P) readonly |
| declare void @llvm.lifetime.end.p0(i64 %S, ptr nocapture %P) |
