[PATCH] D24359: Win64: Don't use REX prefix for direct tail calls

David Majnemer via llvm-commits llvm-commits at lists.llvm.org
Thu Sep 8 12:54:59 PDT 2016


majnemer added a comment.

It seems that not all indirect jumps should be REX prefixed: https://github.com/dotnet/coreclr/blob/master/src/unwinder/amd64/unwinder_amd64.cpp#L1378

Does TAILJMPm64_REX emit something that would match https://github.com/dotnet/coreclr/blob/master/src/unwinder/amd64/unwinder_amd64.cpp#L1389 ?


https://reviews.llvm.org/D24359





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