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add guards to prevent unfolded 'ConstantExpr' from sneaking into 'lConstantElementsToMask' - we handle only Ints and Doubles there

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Anton Mitrokhin
2014-12-04 17:13:07 +03:00
parent f0a5db068f
commit 91ee4ea7b6
1 changed files with 2 additions and 0 deletions
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opt.cpp
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@@ -367,6 +367,8 @@ lGetMask(llvm::Value *factor, uint64_t *mask) {
llvm::dyn_cast<llvm::Constant>(cv->getOperand(i)); llvm::dyn_cast<llvm::Constant>(cv->getOperand(i));
if (c == NULL) if (c == NULL)
return false; return false;
if (llvm::isa<llvm::ConstantExpr>(cv->getOperand(i)) )
return false; // We can not handle constant expressions here
elements.push_back(c); elements.push_back(c);
} }
*mask = lConstElementsToMask(elements); *mask = lConstElementsToMask(elements);