[llvm-dev] Disable combining of loads and stores in instcombine

Neil Ryan via llvm-dev llvm-dev at lists.llvm.org
Tue Apr 16 11:38:26 PDT 2019


 LLVM's optimizer combines stores to consecutive characters into a write of a single word.  For instance, if I have char A[4] and I write some static value to each element, these writes would be combined into a single 32-bit word write. I found this thread from 2009 -- it seems like it wasn't possible then. Has anything changed since?

Neil
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