[DebugInfo] Insert DEBUG_VALUEs after each register redefinition
Summary:
When reinserting debug values after register allocation, make sure to
insert debug values after each redefinition of debug value register in
the slot index range. The reason for this is that DwarfDebug will end
the range of a debug variable when the physical reg is defined. For
instructions with e.g. tied operands this result in prematurely ended
debug range.
This resolves pr34545
Patch by Karl-Johan Karlsson and Bjorn Pettersson
Reviewers: rnk, aprantl
Reviewed By: rnk
Subscribers: bjope, llvm-commits
Differential Revision: https://reviews.llvm.org/D38229
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314974 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed