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llvm-mirror/test/Transforms/NewGVN/verify-memoryphi.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

30 lines
695 B
LLVM

; Skip dead MemoryPhis when performing memory congruency verification
; in NewGVN.
; RUN: opt -S -newgvn %s | FileCheck %s
; REQUIRES: asserts
; CHECK: define void @tinkywinky() {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 false, label %body, label %end
; CHECK: body:
; CHECK-NEXT: store i8 undef, i8* null
; CHECK-NEXT: br label %end
; CHECK: end:
; CHECK-NEXT: ret void
; CHECK-NEXT: }
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
define void @tinkywinky() {
entry:
call void @llvm.lifetime.start.p0i8(i64 4, i8* undef)
br i1 false, label %body, label %end
body:
call void @llvm.lifetime.start.p0i8(i64 4, i8* undef)
br label %end
end:
ret void
}