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| author | Michael Kuperstein <mkuper@google.com> | 2016-12-21 17:34:21 +0000 |
|---|---|---|
| committer | Michael Kuperstein <mkuper@google.com> | 2016-12-21 17:34:21 +0000 |
| commit | 57ab82784ddb8d21eb0041d52f8490d8fd404e29 (patch) | |
| tree | 3e463d2901d9b0a591a61d65b3c3d365c2dee8f4 /test/Analysis/ConstantFolding | |
| parent | 12220058cff5be55055edf8514b6474ab708594e (diff) | |
[ConstantFolding] Fix vector GEPs harder
For vector GEPs, CastGEPIndices can end up in an infinite recursion, because
we compare the vector type to the scalar pointer type, find them different,
and then try to cast a type to itself.
Differential Revision: https://reviews.llvm.org/D28009
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290260 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/ConstantFolding')
| -rw-r--r-- | test/Analysis/ConstantFolding/vectorgep-crash.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Analysis/ConstantFolding/vectorgep-crash.ll b/test/Analysis/ConstantFolding/vectorgep-crash.ll index bcc96b2676b..e7a5117d6ed 100644 --- a/test/Analysis/ConstantFolding/vectorgep-crash.ll +++ b/test/Analysis/ConstantFolding/vectorgep-crash.ll @@ -17,3 +17,24 @@ top: %0 = bitcast <8 x double*> %VectorGep14 to <8 x i64*> ret <8 x i64*> %0 } + +%struct.A = type { i32, %struct.B* } +%struct.B = type { i64, %struct.C* } +%struct.C = type { i64 } + +@G = internal global [65 x %struct.A] zeroinitializer, align 16 +; CHECK-LABEL: @test +; CHECK: ret <16 x i32*> getelementptr ([65 x %struct.A], [65 x %struct.A]* @G, <16 x i64> zeroinitializer, <16 x i64> <i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15, i64 16>, <16 x i32> zeroinitializer) +define <16 x i32*> @test() { +vector.body: + %VectorGep = getelementptr [65 x %struct.A], [65 x %struct.A]* @G, <16 x i64> zeroinitializer, <16 x i64> <i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15, i64 16>, <16 x i32> zeroinitializer + ret <16 x i32*> %VectorGep +} + +; CHECK-LABEL: @test2 +; CHECK: ret <16 x i32*> getelementptr ([65 x %struct.A], [65 x %struct.A]* @G, <16 x i64> zeroinitializer, <16 x i64> <i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, +define <16 x i32*> @test2() { +vector.body: + %VectorGep = getelementptr [65 x %struct.A], [65 x %struct.A]* @G, <16 x i32> zeroinitializer, <16 x i64> <i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15, i64 16>, <16 x i32> zeroinitializer + ret <16 x i32*> %VectorGep +} |