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0c2f14f332
The aggressive anti-dep breaker, used by the PowerPC backend during post-RA scheduling (but is available to all targets), did not handle early-clobber MI operands (at all). When constructing the list of available registers for the replacement of some def operand, check the using instructions, and remove registers assigned to early-clobbered defs from the set. Fixes PR21452. llvm-svn: 223727
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