[PATCH] D17211: Consider regmasks when computing register-based DBG_VALUE live ranges

[Reid Kleckner via llvm-commits]

rnk created this revision.
rnk added reviewers: dexonsmith, aprantl.
rnk added a subscriber: llvm-commits.
Herald added a subscriber: dsanders.

Now register parameters that aren't saved to the stack or CSRs are
considered dead after the first call. Previously the debugger would show
whatever was in the register.

Fixes PR26589

http://reviews.llvm.org/D17211

Files:
  lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp
  lib/CodeGen/LiveDebugValues.cpp
  test/DebugInfo/MIR/X86/live-debug-values.mir
  test/DebugInfo/Mips/dsr-fixed-objects.ll
  test/DebugInfo/X86/array.ll
  test/DebugInfo/X86/bbjoin.ll
  test/DebugInfo/X86/dbg-value-regmask-clobber.ll
  test/DebugInfo/X86/debug-loc-asan.ll
  test/DebugInfo/X86/live-debug-values.ll
  test/DebugInfo/X86/pr19307.ll
  test/DebugInfo/X86/subregisters.ll

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