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Diffstat (limited to 'test/Transforms/TailDup/PHIUpdateTest.ll')
| -rw-r--r-- | test/Transforms/TailDup/PHIUpdateTest.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Transforms/TailDup/PHIUpdateTest.ll b/test/Transforms/TailDup/PHIUpdateTest.ll new file mode 100644 index 000000000000..6f86587b24d6 --- /dev/null +++ b/test/Transforms/TailDup/PHIUpdateTest.ll @@ -0,0 +1,16 @@ +; This test checks to make sure phi nodes are updated properly +; +; RUN: llvm-as < %s | opt -tailduplicate -disable-output + +define i32 @test(i1 %c, i32 %X, i32 %Y) { + br label %L +L: ; preds = %F, %0 + %A = add i32 %X, %Y ; <i32> [#uses=1] + br i1 %c, label %T, label %F +F: ; preds = %L + br i1 %c, label %L, label %T +T: ; preds = %F, %L + %V = phi i32 [ %A, %L ], [ 0, %F ] ; <i32> [#uses=1] + ret i32 %V +} + |