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380b5bd2b0
Remove 'inlinedAt:' from MDLocalVariable. Besides saving some memory (variables with it seem to be single largest `Metadata` contributer to memory usage right now in -g -flto builds), this stops optimization and backend passes from having to change local variables. The 'inlinedAt:' field was used by the backend in two ways: 1. To tell the backend whether and into what a variable was inlined. 2. To create a unique id for each inlined variable. Instead, rely on the 'inlinedAt:' field of the intrinsic's `!dbg` attachment, and change the DWARF backend to use a typedef called `InlinedVariable` which is `std::pair<MDLocalVariable*, MDLocation*>`. This `DebugLoc` is already passed reliably through the backend (as verified by r234021). This commit removes the check from r234021, but I added a new check (that will survive) in r235048, and changed the `DIBuilder` API in r235041 to require a `!dbg` attachment whose 'scope:` is in the same `MDSubprogram` as the variable's. If this breaks your out-of-tree testcases, perhaps the script I used (mdlocalvariable-drop-inlinedat.sh) will help; I'll attach it to PR22778 in a moment. llvm-svn: 235050 |
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.. | ||
AddDiscriminators.cpp | ||
ASanStackFrameLayout.cpp | ||
BasicBlockUtils.cpp | ||
BreakCriticalEdges.cpp | ||
BuildLibCalls.cpp | ||
BypassSlowDivision.cpp | ||
CloneFunction.cpp | ||
CloneModule.cpp | ||
CMakeLists.txt | ||
CmpInstAnalysis.cpp | ||
CodeExtractor.cpp | ||
CtorUtils.cpp | ||
DemoteRegToStack.cpp | ||
FlattenCFG.cpp | ||
GlobalStatus.cpp | ||
InlineFunction.cpp | ||
InstructionNamer.cpp | ||
IntegerDivision.cpp | ||
LCSSA.cpp | ||
LLVMBuild.txt | ||
Local.cpp | ||
LoopSimplify.cpp | ||
LoopUnroll.cpp | ||
LoopUnrollRuntime.cpp | ||
LowerInvoke.cpp | ||
LowerSwitch.cpp | ||
Makefile | ||
Mem2Reg.cpp | ||
MetaRenamer.cpp | ||
ModuleUtils.cpp | ||
PromoteMemoryToRegister.cpp | ||
SimplifyCFG.cpp | ||
SimplifyIndVar.cpp | ||
SimplifyInstructions.cpp | ||
SimplifyLibCalls.cpp | ||
SSAUpdater.cpp | ||
SymbolRewriter.cpp | ||
UnifyFunctionExitNodes.cpp | ||
Utils.cpp | ||
ValueMapper.cpp |