| ; RUN: opt < %s -passes=globalopt -S | FileCheck %s |
| |
| ; When removing the store to @global in @foo, the pass would incorrectly return |
| ; false. This was caught by the pass return status check that is hidden under |
| ; EXPENSIVE_CHECKS. |
| |
| ; CHECK: @global = internal unnamed_addr global ptr null, align 1 |
| |
| ; CHECK-LABEL: @foo |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: ret i16 undef |
| |
| @global = internal unnamed_addr global ptr null, align 1 |
| |
| ; Function Attrs: nofree noinline norecurse nounwind writeonly |
| define i16 @foo(i16 %c) local_unnamed_addr #0 { |
| entry: |
| %local1.addr = alloca i16, align 1 |
| store ptr %local1.addr, ptr @global, align 1 |
| ret i16 undef |
| } |
| |
| ; Function Attrs: noinline nounwind writeonly |
| define i16 @bar() local_unnamed_addr #1 { |
| entry: |
| %local2 = alloca [1 x i16], align 1 |
| call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %local2) |
| store ptr %local2, ptr @global, align 1 |
| call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %local2) |
| ret i16 undef |
| } |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2 |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2 |
| |
| attributes #0 = { nofree noinline norecurse nounwind writeonly } |
| attributes #1 = { noinline nounwind writeonly } |
| attributes #2 = { argmemonly nounwind willreturn } |
