[PATCH] D82000: [CSInfo][MIPS] Don't describe parameters loaded by sub- or super- register copy

[Nikola Tesic via Phabricator via llvm-commits]

ntesic created this revision.
ntesic added reviewers: vsk, aprantl, dstenb, djtodoro.
ntesic added a project: debug-info.
Herald added subscribers: llvm-commits, ormris, atanasyan, hiraditya, arichardson, sdardis.
Herald added a project: LLVM.

When describing parameter value loaded by a COPY instruction, consider case
where needed Reg value is a sub- or super- register of the COPY instruction's
destination register. Without this patch, compile process will crash with
the assertion "TargetInstrInfo::describeLoadedValue can't describe super- or
sub-regs for copy instructions".


https://reviews.llvm.org/D82000

Files:
  llvm/lib/Target/Mips/MipsInstrInfo.cpp
  llvm/test/DebugInfo/MIR/Mips/dbg-call-site-copy-sub-reg.mir

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