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llvm-mirror/lib/Transforms/Utils
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Bjorn Pettersson c3a419fcf3 Re-apply "[DebugInfo] Check size of variable in ConvertDebugDeclareToDebugValue" 
This is r334704 (which was reverted in r334732) with a fix for
types like x86_fp80. We need to use getTypeAllocSizeInBits and
not getTypeStoreSizeInBits to avoid dropping debug info for
such types.

Original commit msg:
> Summary:
> Do not convert a DbgDeclare to DbgValue if the store
> instruction only refer to a fragment of the variable
> described by the DbgDeclare.
>
> Problem was seen when for example having an alloca for an
> array or struct, and there were stores to individual elements.
> In the past we inserted a DbgValue intrinsics for each store,
> just as if the store wrote the whole variable.
>
> When handling store instructions we insert a DbgValue that
> indicates that the variable is "undefined", as we do not know
> which part of the variable that is updated by the store.
>
> When ConvertDebugDeclareToDebugValue is used with a load/phi
> instruction we assert that the referenced value is large enough
> to cover the whole variable. Afaict this should be true for all
> scenarios where those methods are used on trunk. If the assert
> blows in the future I guess we could simply skip to insert a
> dbg.value instruction.
>
> In the future I think we should examine which part of the variable
> that is accessed, and add a DbgValue instrinsic with an appropriate
> DW_OP_LLVM_fragment expression.
>
> Reviewers: dblaikie, aprantl, rnk
>
> Reviewed By: aprantl
>
> Subscribers: JDevlieghere, llvm-commits
>
> Tags: #debug-info
>
> Differential Revision: https://reviews.llvm.org/D48024

llvm-svn: 334830
2018-06-15 13:48:55 +00:00
..
AddDiscriminators.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
ASanStackFrameLayout.cpp [asan] Add a full redzone after every stack variable 2017-11-18 01:13:18 +00:00
BasicBlockUtils.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
BreakCriticalEdges.cpp Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h 2018-03-28 17:44:36 +00:00
BuildLibCalls.cpp [InstCombine] Fix the signature of fgets_unlocked. 2018-05-16 21:45:39 +00:00
BypassSlowDivision.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
CallPromotionUtils.cpp [ICP] Do not attempt type matching for variable length arguments. 2018-04-25 17:19:21 +00:00
CloneFunction.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
CloneModule.cpp [DebugInfo][OPT] Fixing a couple of DI duplication bugs of CloneModule 2018-04-13 21:22:24 +00:00
CMakeLists.txt Revert 333358 as it's failing on some builders. 2018-05-27 12:54:33 +00:00
CodeExtractor.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
CtorUtils.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
DemoteRegToStack.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
EntryExitInstrumenter.cpp EntryExitInstrumenter: Handle musttail calls 2018-04-06 10:14:09 +00:00
EscapeEnumerator.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
Evaluator.cpp Fix evaluator for non-zero alloca addr space 2018-05-19 02:58:16 +00:00
FlattenCFG.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
FunctionComparator.cpp Use SmallPtrSet explicitly for SmallSets with pointer types (NFC). 2018-06-12 11:16:56 +00:00
FunctionImportUtils.cpp [ThinLTO] Clear dllimport when setting dso_local. 2018-03-13 15:24:51 +00:00
GlobalStatus.cpp [GlobalOpt] Fix exponential compile-time with selects. 2018-01-31 20:42:25 +00:00
ImportedFunctionsInliningStatistics.cpp [Transforms] Change std::sort to llvm::sort in response to r327219 2018-04-13 19:47:57 +00:00
InlineFunction.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
InstructionNamer.cpp Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h 2018-03-28 17:44:36 +00:00
IntegerDivision.cpp Remove @brief commands from doxygen comments, too. 2018-05-01 16:10:38 +00:00
LCSSA.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
LibCallsShrinkWrap.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
LLVMBuild.txt [PM/AA] Remove the last relics of the separate IPA library from LLVM, 2015-08-18 17:51:53 +00:00
Local.cpp Re-apply "[DebugInfo] Check size of variable in ConvertDebugDeclareToDebugValue" 2018-06-15 13:48:55 +00:00
LoopRotationUtils.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
LoopSimplify.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
LoopUnroll.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
LoopUnrollPeel.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
LoopUnrollRuntime.cpp Use SmallPtrSet explicitly for SmallSets with pointer types (NFC). 2018-06-12 11:16:56 +00:00
LoopUtils.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
LoopVersioning.cpp [LoopVersioning] Don't modify the list that we iterate over in addPHINodes 2018-05-22 08:33:02 +00:00
LowerInvoke.cpp Support a funclet operand bundle in LowerInvoke 2018-05-09 00:53:50 +00:00
LowerMemIntrinsics.cpp [LowerMemIntrinsics] Update uses of deprecated MemIntrinsic::getAlignment API (NFC) 2018-02-05 22:23:58 +00:00
LowerSwitch.cpp [LowerSwitch] Fixed faulty PHI node update 2018-05-22 08:46:48 +00:00
Mem2Reg.cpp Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h 2018-03-28 17:44:36 +00:00
MetaRenamer.cpp Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h 2018-03-28 17:44:36 +00:00
ModuleUtils.cpp ModuleUtils: Stop using comdat members to generate unique module ids. 2017-10-05 21:54:53 +00:00
NameAnonGlobals.cpp Use StringRef in Pass/PassManager APIs (NFC) 2016-10-01 02:56:57 +00:00
OrderedInstructions.cpp Remove unneeded else from OrderedInstructions::dominates. 2017-06-29 17:01:03 +00:00
PredicateInfo.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
PromoteMemoryToRegister.cpp [Mem2Reg] Avoid replacing load with itself in promoteSingleBlockAlloca. 2018-06-07 11:09:05 +00:00
SanitizerStats.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
SimplifyCFG.cpp Use SmallPtrSet explicitly for SmallSets with pointer types (NFC). 2018-06-12 11:16:56 +00:00
SimplifyIndVar.cpp [SimplifyIndVars] Ignore dead users 2018-06-13 02:25:32 +00:00
SimplifyInstructions.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
SimplifyLibCalls.cpp Move Analysis/Utils/Local.h back to Transforms 2018-06-04 21:23:21 +00:00
SplitModule.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
SSAUpdater.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
SSAUpdaterBulk.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
StripGCRelocates.cpp Fix a couple of layering violations in Transforms 2018-03-21 22:34:23 +00:00
StripNonLineTableDebugInfo.cpp Fix some layering in StripNonLineTableDebugInfo, moving its declaration from IPO.h to Utils.h to match its implementation 2018-03-29 22:42:08 +00:00
SymbolRewriter.cpp Mark all library options as hidden. 2017-12-01 00:53:10 +00:00
UnifyFunctionExitNodes.cpp Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h 2018-03-28 17:44:36 +00:00
Utils.cpp llvm-c: Split Utils out of Scalar.h 2018-03-29 22:31:38 +00:00
ValueMapper.cpp Teach ValueMapper to use ODR uniqued types when available 2018-01-30 20:16:32 +00:00
VNCoercion.cpp Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00