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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-12-27 12:00:18 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-12-27 12:00:18 +0000 |
| commit | 415d43cb704272c428f60fcc6ae6ca4a9d1eb8c8 (patch) | |
| tree | 6224ee5b1df24c395f2b6c47fa0c9057bcc9a7b7 /test/Transforms | |
| parent | 58a0346050b5596282ecfc8fdc9eaf6496456da6 (diff) | |
[InstCombine] Gracefully handle out of range extractelement indices
InstSimplify is responsible for handling these, but we shouldn't just assert here.
Reduced from oss-fuzz #4808 test case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321489 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/InstCombine/extractelement.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/extractelement.ll b/test/Transforms/InstCombine/extractelement.ll new file mode 100644 index 00000000000..66fbd25947d --- /dev/null +++ b/test/Transforms/InstCombine/extractelement.ll @@ -0,0 +1,11 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -instcombine -S | FileCheck %s + +define i32 @extractelement_out_of_range(<2 x i32> %x) { +; CHECK-LABEL: @extractelement_out_of_range( +; CHECK-NEXT: [[E1:%.*]] = extractelement <2 x i32> [[X:%.*]], i8 16 +; CHECK-NEXT: ret i32 [[E1]] +; + %E1 = extractelement <2 x i32> %x, i8 16 + ret i32 %E1 +} |