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Mirror of https://github.com/RPCS3/llvm-mirror
ab56bae9c6
Currently whenever we sink any instruction, we do clearKillFlags for every use of every use operand for that instruction, apparently there are a lot of duplication, therefore compile time penalties. This patch collect all the interested registers first, do clearKillFlags for it all together at once at the end, so we only need to do clearKillFlags once for one register, duplication is avoided. Patch by Lawrence Hu! Differential Revision: http://reviews.llvm.org/D9719 llvm-svn: 237510 |
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