1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
; RUN: opt -codegenprepare -S < %s | FileCheck %s
@tmp = global i8 0
; CHECK-LABEL: define void @foo() {
define void @foo() {
enter:
; CHECK-NOT: !invariant.group
; CHECK-NOT: @llvm.launder.invariant.group.p0i8(
; CHECK: %val = load i8, i8* @tmp{{$}}
%val = load i8, i8* @tmp, !invariant.group !0
%ptr = call i8* @llvm.launder.invariant.group.p0i8(i8* @tmp)
; CHECK: store i8 42, i8* @tmp{{$}}
store i8 42, i8* %ptr, !invariant.group !0
ret void
}
; CHECK-LABEL: }
; CHECK-LABEL: define void @foo2() {
define void @foo2() {
enter:
; CHECK-NOT: !invariant.group
; CHECK-NOT: @llvm.strip.invariant.group.p0i8(
; CHECK: %val = load i8, i8* @tmp{{$}}
%val = load i8, i8* @tmp, !invariant.group !0
%ptr = call i8* @llvm.strip.invariant.group.p0i8(i8* @tmp)
; CHECK: store i8 42, i8* @tmp{{$}}
store i8 42, i8* %ptr, !invariant.group !0
ret void
}
; CHECK-LABEL: }
declare i8* @llvm.launder.invariant.group.p0i8(i8*)
declare i8* @llvm.strip.invariant.group.p0i8(i8*)
!0 = !{}
|
