1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
; RUN: opt < %s -passes='function(instcombine),function(mem2reg)' -S | \
; RUN: not grep "i32 1"
; When propagating the load through the select, make sure that the load is
; inserted where the original load was, not where the select is. Not doing
; so could produce incorrect results!
define i32 @test(i1 %C) {
%X = alloca i32 ; <ptr> [#uses=3]
%X2 = alloca i32 ; <ptr> [#uses=2]
store i32 1, ptr %X
store i32 2, ptr %X2
%Y = select i1 %C, ptr %X, ptr %X2 ; <ptr> [#uses=1]
store i32 3, ptr %X
%Z = load i32, ptr %Y ; <i32> [#uses=1]
ret i32 %Z
}
|
