059994f219
Summary: Following https://reviews.llvm.org/D82607. Reviewers: ychen Subscribers: asbirlea, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D82688
21 lines
661 B
LLVM
21 lines
661 B
LLVM
; RUN: opt < %s -basic-aa -gvn -S | FileCheck %s
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
|
|
target triple = "i386-apple-darwin7"
|
|
|
|
define i8 @test(i8* %P) nounwind {
|
|
; CHECK: lifetime.start
|
|
; CHECK-NOT: load
|
|
; CHECK: lifetime.end
|
|
entry:
|
|
call void @llvm.lifetime.start.p0i8(i64 32, i8* %P)
|
|
%0 = load i8, i8* %P
|
|
store i8 1, i8* %P
|
|
call void @llvm.lifetime.end.p0i8(i64 32, i8* %P)
|
|
%1 = load i8, i8* %P
|
|
ret i8 %1
|
|
}
|
|
|
|
declare void @llvm.lifetime.start.p0i8(i64 %S, i8* nocapture %P) readonly
|
|
declare void @llvm.lifetime.end.p0i8(i64 %S, i8* nocapture %P)
|