mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-04 10:04:33 +00:00
02b4c05847
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267493 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
790 B
LLVM
28 lines
790 B
LLVM
; Test that PHI nodes and select instructions do not necessarily make stuff
|
|
; non-constant.
|
|
|
|
; RUN: opt < %s -globalopt -S | FileCheck %s
|
|
; CHECK-NOT: global
|
|
|
|
@X = internal global i32 4 ; <i32*> [#uses=2]
|
|
@Y = internal global i32 5 ; <i32*> [#uses=2]
|
|
|
|
define i32 @test1(i1 %C) {
|
|
%P = select i1 %C, i32* @X, i32* @Y ; <i32*> [#uses=1]
|
|
%V = load i32, i32* %P ; <i32> [#uses=1]
|
|
ret i32 %V
|
|
}
|
|
|
|
define i32 @test2(i1 %C) {
|
|
; <label>:0
|
|
br i1 %C, label %T, label %Cont
|
|
|
|
T: ; preds = %0
|
|
br label %Cont
|
|
|
|
Cont: ; preds = %T, %0
|
|
%P = phi i32* [ @X, %0 ], [ @Y, %T ] ; <i32*> [#uses=1]
|
|
%V = load i32, i32* %P ; <i32> [#uses=1]
|
|
ret i32 %V
|
|
}
|