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For each array index that is in the form of zext(a), convert it to sext(a) if we can prove zext(a) <= max signed value of typeof(a). The conversion helps to split zext(x + y) into sext(x) + sext(y). Reviewed in http://reviews.llvm.org/D4060 llvm-svn: 210444 |
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lit.local.cfg | ||
split-gep-and-gvn.ll | ||
split-gep.ll |