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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-10-09 01:58:35 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-10-09 01:58:35 +0000 |
| commit | 503eb2bb49f05c762fd79e42cb96ac6e86f0691e (patch) | |
| tree | 75ff291c40c9f0bb16770b9f55057a41539f3660 /llvm/lib/Transforms | |
| parent | 07cee6efc9f80d76df61c286485302bf0ff947de (diff) | |
| download | bcm5719-llvm-503eb2bb49f05c762fd79e42cb96ac6e86f0691e.tar.gz bcm5719-llvm-503eb2bb49f05c762fd79e42cb96ac6e86f0691e.zip | |
Fix PR14034, an infloop / heap corruption / crash bug in the new SROA.
Thanks to Benjamin for the raw test case. This one took about 50 times
longer to reduce than to fix. =/
llvm-svn: 165476
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SROA.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp index b2793893b46..ca762514929 100644 --- a/llvm/lib/Transforms/Scalar/SROA.cpp +++ b/llvm/lib/Transforms/Scalar/SROA.cpp @@ -1786,6 +1786,8 @@ static Value *getNaturalGEPWithType(IRBuilder<> &IRB, const DataLayout &TD, ElementTy = SeqTy->getElementType(); Indices.push_back(IRB.getInt(APInt(TD.getPointerSizeInBits(), 0))); } else if (StructType *STy = dyn_cast<StructType>(ElementTy)) { + if (STy->element_begin() == STy->element_end()) + break; // Nothing left to descend into. ElementTy = *STy->element_begin(); Indices.push_back(IRB.getInt32(0)); } else { |
