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
|
; RUN: opt < %s -argpromotion -S > %t
; RUN: cat %t | grep {define.*@callee(.*i32\\*}
; PR2498
; This test tries to convince argpromotion about promoting the load from %A + 2,
; because there is a load of %A in the entry block
define internal i32 @callee(i1 %C, i32* %A) {
entry:
; Unconditonally load the element at %A
%A.0 = load i32* %A
br i1 %C, label %T, label %F
T:
ret i32 %A.0
F:
; Load the element at offset two from %A. This should not be promoted!
%A.2 = getelementptr i32* %A, i32 2
%R = load i32* %A.2
ret i32 %R
}
define i32 @foo() {
%X = call i32 @callee(i1 false, i32* null) ; <i32> [#uses=1]
ret i32 %X
}
|
