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
|
; RUN: opt < %s -disable-basicaa -globals-aa -dse -S | FileCheck %s
@X = internal global i32 4
define i32 @test0() {
; CHECK-LABEL: @test0
; CHECK: store i32 0, i32* @X
; CHECK-NEXT: call i32 @func_readonly() #0
; CHECK-NEXT: store i32 1, i32* @X
store i32 0, i32* @X
%x = call i32 @func_readonly() #0
store i32 1, i32* @X
ret i32 %x
}
define i32 @test1() {
; CHECK-LABEL: @test1
; CHECK-NOT: store
; CHECK: call i32 @func_read_argmem_only() #1
; CHECK-NEXT: store i32 3, i32* @X
store i32 2, i32* @X
%x = call i32 @func_read_argmem_only() #1
store i32 3, i32* @X
ret i32 %x
}
declare i32 @func_readonly() #0
declare i32 @func_read_argmem_only() #1
attributes #0 = { readonly nounwind }
attributes #1 = { readonly argmemonly nounwind }
|
