forked from OSchip/llvm-project
19 lines
646 B
LLVM
19 lines
646 B
LLVM
; RUN: opt < %s -instcombine -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 ; <i32*> [#uses=3]
|
|
%X2 = alloca i32 ; <i32*> [#uses=2]
|
|
store i32 1, i32* %X
|
|
store i32 2, i32* %X2
|
|
%Y = select i1 %C, i32* %X, i32* %X2 ; <i32*> [#uses=1]
|
|
store i32 3, i32* %X
|
|
%Z = load i32, i32* %Y ; <i32> [#uses=1]
|
|
ret i32 %Z
|
|
}
|
|
|