Conservative fix for PR17827 - don't optimize a shift + and + compare sequence where...

[oota-llvm.git] / test / Transforms / JumpThreading / and-and-cond.ll

diff --git a/test/Transforms/JumpThreading/and-and-cond.ll b/test/Transforms/JumpThreading/and-and-cond.ll
index e6db9ee5a325933eafd5671aa4f99f2b5b250e31..765d940cc7c3e03f397899a78904460fbeb32dd7 100644 (file)
--- a/test/Transforms/JumpThreading/and-and-cond.ll
+++ b/test/Transforms/JumpThreading/and-and-cond.ll
@@ -1,14 +1,14 @@
-; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg  -S | grep {ret i32 %v1}
-; There should be no uncond branches left.
-; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg  -S | not grep {br label}
+; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg  -S | FileCheck %s
 
 declare i32 @f1()
 declare i32 @f2()
 declare void @f3()
 
 define i32 @test(i1 %cond, i1 %cond2, i1 %cond3) {
+; CHECK: test
        br i1 %cond, label %T1, label %F1
 
+; CHECK-NOT: T1:
 T1:
        %v1 = call i32 @f1()
        br label %Merge
@@ -18,6 +18,10 @@ F1:
        br label %Merge
 
 Merge:
+; CHECK: Merge:
+; CHECK: %v1 = call i32 @f1()
+; CHECK-NEXT: %D = and i1 %cond2, %cond3
+; CHECK-NEXT: br i1 %D
        %A = phi i1 [true, %T1], [false, %F1]
        %B = phi i32 [%v1, %T1], [%v2, %F1]
        %C = and i1 %A, %cond2