Bjorn Pettersson bb16824edf [TwoAddressInstructionPass] Replace subregister uses when processing tied operands ... Summary: TwoAddressInstruction pass typically rewrites %1:short = foo %0.sub_lo:long as %1:short = COPY %0.sub_lo:long %1:short = foo %1:short when having tied operands. If there are extra un-tied operands that uses the same reg and subreg, such as the second and third inputs to fie here: %1:short = fie %0.sub_lo:long, %0.sub_hi:long, %0.sub_lo:long then there was a bug which replaced the register %0 also for the un-tied operand, but without changing the subregister indices. So we used to get: %1:short = COPY %0.sub_lo:long %1:short = fie %1, %1.sub_hi:short, %1.sub_lo:short With this fix we instead get: %1:short = COPY %0.sub_lo:long %1:short = fie %1, %0.sub_hi:long, %1 Reviewers: arsenm, JesperAntonsson, kparzysz, MatzeB Reviewed By: MatzeB Subscribers: bjope, kparzysz, wdng, llvm-commits Differential Revision: https://reviews.llvm.org/D36224 llvm-svn: 344492		2018-10-15 08:36:03 +00:00
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CodeGen	[TwoAddressInstructionPass] Replace subregister uses when processing tied operands	2018-10-15 08:36:03 +00:00
DebugInfo	[codeview] Emit S_BUILDINFO and LF_BUILDINFO with cwd and source file	2018-10-12 18:19:06 +00:00
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