diff options
Diffstat (limited to 'test/Analysis/GlobalsModRef/purecse.ll')
| -rw-r--r-- | test/Analysis/GlobalsModRef/purecse.ll | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/test/Analysis/GlobalsModRef/purecse.ll b/test/Analysis/GlobalsModRef/purecse.ll index 994aff8..e030417 100644 --- a/test/Analysis/GlobalsModRef/purecse.ll +++ b/test/Analysis/GlobalsModRef/purecse.ll @@ -1,6 +1,5 @@ ; Test that pure functions are cse'd away -; RUN: opt < %s -globalsmodref-aa -gvn -instcombine | \ -; RUN: llvm-dis | not grep sub +; RUN: opt < %s -globalsmodref-aa -gvn -instcombine -S | FileCheck %s define i32 @pure(i32 %X) { %Y = add i32 %X, 1 ; <i32> [#uses=1] @@ -8,6 +7,8 @@ define i32 @pure(i32 %X) { } define i32 @test1(i32 %X) { +; CHECK: %A = call i32 @pure(i32 %X) +; CHECK-NEXT: ret i32 0 %A = call i32 @pure( i32 %X ) ; <i32> [#uses=1] %B = call i32 @pure( i32 %X ) ; <i32> [#uses=1] %C = sub i32 %A, %B ; <i32> [#uses=1] @@ -15,6 +16,9 @@ define i32 @test1(i32 %X) { } define i32 @test2(i32 %X, i32* %P) { +; CHECK: %A = call i32 @pure(i32 %X) +; CHECK-NEXT: store i32 %X, i32* %P +; CHECK-NEXT: ret i32 0 %A = call i32 @pure( i32 %X ) ; <i32> [#uses=1] store i32 %X, i32* %P ;; Does not invalidate 'pure' call. %B = call i32 @pure( i32 %X ) ; <i32> [#uses=1] |
