Jack Andersen f108c7f59d [GlobalISel] Allow DBG_VALUE to use undefined vregs before LiveDebugValues. ... Expanding on D109750. Since `DBG_VALUE` instructions have final register validity determined in `LDVImpl::handleDebugValue`, there is no apparent reason to immediately prune unused register operands as their defs are erased. Consequently, this renders `MachineInstr::eraseFromParentAndMarkDBGValuesForRemoval` moot; gaining a substantial performance improvement. The only necessary changes involve making relevant passes consider invalid DBG_VALUE vregs uses as valid. Reviewed By: MatzeB Differential Revision: https://reviews.llvm.org/D112852		2021-12-05 15:55:59 -05:00
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CMakeLists.txt	llvmbuildectomy - replace llvm-build by plain cmake	2020-11-13 10:35:24 +01:00
MILexer.cpp	[MIRParser] Add support for IsInlineAsmBrIndirectTarget	2021-10-07 19:08:01 +01:00
MILexer.h	[MIRParser] Add support for IsInlineAsmBrIndirectTarget	2021-10-07 19:08:01 +01:00
MIParser.cpp	Revert "[DebugInfo] Enforce implicit constraints on `distinct` MDNodes"	2021-11-09 14:27:55 -08:00
MIRParser.cpp	[GlobalISel] Allow DBG_VALUE to use undefined vregs before LiveDebugValues.	2021-12-05 15:55:59 -05:00