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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-04-18 14:29:13 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-04-18 14:29:13 +0000 |
| commit | 403fc143709bfe5cf014929d633c0b1c28f6e0c9 (patch) | |
| tree | 8fa9d264a4d1c4486de6f69c6203ffea870b4e04 /test/Transforms/LoopVectorize/phi-hang.ll | |
| parent | d050e96133fac8565e3bb1eabe9a587dd5a6ac4d (diff) | |
| download | llvm-403fc143709bfe5cf014929d633c0b1c28f6e0c9.tar.gz llvm-403fc143709bfe5cf014929d633c0b1c28f6e0c9.tar.bz2 llvm-403fc143709bfe5cf014929d633c0b1c28f6e0c9.tar.xz | |
LoopVectorize: Use a set to avoid longer cycles in the reduction chain too.
Fixes PR15748.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179757 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LoopVectorize/phi-hang.ll')
| -rw-r--r-- | test/Transforms/LoopVectorize/phi-hang.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/phi-hang.ll b/test/Transforms/LoopVectorize/phi-hang.ll index b80d45995d..bbce239afa 100644 --- a/test/Transforms/LoopVectorize/phi-hang.ll +++ b/test/Transforms/LoopVectorize/phi-hang.ll @@ -27,3 +27,21 @@ bb5: ; preds = %bb4, %bb1 bb11: ; preds = %bb5 ret void } + +; PR15748 +define void @test2() { +bb: + br label %bb1 + +bb1: ; preds = %bb1, %bb + %tmp = phi i32 [ 0, %bb ], [ %tmp5, %bb1 ] + %tmp2 = phi i32 [ 0, %bb ], [ 1, %bb1 ] + %tmp3 = phi i32 [ 0, %bb ], [ %tmp4, %bb1 ] + %tmp4 = or i32 %tmp2, %tmp3 + %tmp5 = add nsw i32 %tmp, 1 + %tmp6 = icmp eq i32 %tmp5, 0 + br i1 %tmp6, label %bb7, label %bb1 + +bb7: ; preds = %bb1 + ret void +} |