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Regalloc creates COPY instructions which do not formally use VALU. That results in v_mov instructions displaced after exec mask modification. One pass which do it is SIOptimizeExecMasking, but potentially it can be done by other passes too. This patch adds a pass immediately after regalloc to add implicit exec use operand to all VGPR copy instructions. Differential Revision: https://reviews.llvm.org/D28874 llvm-svn: 292956 |
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configure | ||
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llvm.spec.in | ||
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