1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 11:42:57 +01:00
llvm-mirror/test/Transforms/GlobalOpt/phi-select.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

32 lines
768 B
LLVM

; Test that PHI nodes and select instructions do not necessarily make stuff
; non-constant.
; RUN: opt < %s -globalopt -S | not grep 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* %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* %P ; <i32> [#uses=1]
ret i32 %V
}