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9c3961aabe
Move RegStackify after coalescing and teach it to use LiveIntervals instead of depending on SSA form. This avoids a problem where a register in a COPY instruction is stackified and then subsequently coalesced with a register that is not stackified. This also puts it after the scheduler, which allows us to simplify the EXPR_STACK constraint, as we no longer have instructions being reordered after stackification and before coloring. llvm-svn: 256402 |
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