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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-09-19 21:58:15 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-09-19 21:58:15 +0000 |
| commit | c6b8ba86738cb6187835e440f2baafaa24dea0b2 (patch) | |
| tree | 4b308426bc45ed2e7470f73bcbe17c89dea5ae84 /test/Transforms | |
| parent | 1494c496e2827f991f75eae4acf8f7bf9952abdd (diff) | |
| download | external_llvm-c6b8ba86738cb6187835e440f2baafaa24dea0b2.zip external_llvm-c6b8ba86738cb6187835e440f2baafaa24dea0b2.tar.gz external_llvm-c6b8ba86738cb6187835e440f2baafaa24dea0b2.tar.bz2 | |
Fix an infinite loop where a transform in InstCombiner::visitAnd claims a construct is changed when it is not. (See included testcase.)
Patch by Xiaoyi Guo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140072 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/InstCombine/and2.ll | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/and2.ll b/test/Transforms/InstCombine/and2.ll index a888152..531aedb 100644 --- a/test/Transforms/InstCombine/and2.ll +++ b/test/Transforms/InstCombine/and2.ll @@ -35,3 +35,10 @@ define i1 @test4(i32 %X) { ; CHECK: @test4 ; CHECK-NEXT: ret i1 false } + +; Make sure we don't go into an infinite loop with this test +define <4 x i32> @test5(<4 x i32> %A) { + %1 = xor <4 x i32> %A, <i32 1, i32 2, i32 3, i32 4> + %2 = and <4 x i32> <i32 1, i32 2, i32 3, i32 4>, %1 + ret <4 x i32> %2 +} |