search for: issafegep

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2013 Feb 07
1
[LLVMdev] alloca scalarization with dynamic indexing into vectors
Hi all, I have a question regarding dynamic indexing into a vector with GEP. I see that in the ScalarReplAggregates pass in the LLVM 3.2 release the call SROA::isSafeGEP() will now allow alloca scalarization in the case where a GEP index into a vector isn’t a constant. My question is: what is the expected behavior when the index is out of bounds of the vector? Is it undefined? I have an example .ll where we have an alloca that can potentially be scalarized where...