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...emset to skip setting the dead element. That *is* something that we should be able to handle. Pete, didn't you implement this a while ago? -Chris -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120225/975f3c38/attachment.html>

Prompted by a SO post (http://stackoverflow.com/questions/9441882/compiler-instruction-reordering-optimizations-in-c-and-what-inhibits-them/9442363) I checked and found that LLVM yields the same (seemingly) suboptimal code as MSVC. Consider the following, simplified, C snippet: extern void bar(int*); void foo(int a) { int ar[100] = {a}; if (a) return; bar(ar); }