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Florian Hahn ffc498dfcc Align definition of DW_OP_plus with DWARF spec [3/3] 
Summary:
This patch is part of 3 patches that together form a single patch, but must be introduced in stages in order not to break things.
 
The way that LLVM interprets DW_OP_plus in DIExpression nodes is basically that of the DW_OP_plus_uconst operator since LLVM expects an unsigned constant operand. This unnecessarily restricts the DW_OP_plus operator, preventing it from being used to describe the evaluation of runtime values on the expression stack. These patches try to align the semantics of DW_OP_plus and DW_OP_minus with that of the DWARF definition, which pops two elements off the expression stack, performs the operation and pushes the result back on the stack.
 
This is done in three stages:
• The first patch (LLVM) adds support for DW_OP_plus_uconst.
• The second patch (Clang) contains changes all its uses from DW_OP_plus to DW_OP_plus_uconst.
• The third patch (LLVM) changes the semantics of DW_OP_plus and DW_OP_minus to be in line with its DWARF meaning. This patch includes the bitcode upgrade from legacy DIExpressions.

Patch by Sander de Smalen.

Reviewers: echristo, pcc, aprantl

Reviewed By: aprantl

Subscribers: fhahn, javed.absar, aprantl, llvm-commits

Differential Revision: https://reviews.llvm.org/D33894

llvm-svn: 305386
 		2017-06-14 13:14:38 +00:00
..
AsmWriter.cpp Move Object format code to lib/BinaryFormat. 2017-06-07 03:48:56 +00:00
AttributeImpl.h [IR] Switch AttributeList to use an array for O(1) access 2017-05-23 17:01:48 +00:00
Attributes.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
AttributesCompatFunc.td
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AutoUpgrade.cpp Added missing break. 2017-05-19 20:31:51 +00:00
BasicBlock.cpp [IR] Add an iterator and range accessor for the PHI nodes of a basic 2017-05-26 03:10:00 +00:00
CMakeLists.txt [CMake] NFC. Updating CMake dependency specifications 2016-11-17 04:36:50 +00:00
Comdat.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
ConstantFold.cpp fix typos/formatting; NFC 2017-06-12 22:34:37 +00:00
ConstantFold.h IR: Introduce inrange attribute on getelementptr indices. 2016-11-10 22:34:55 +00:00
ConstantRange.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
Constants.cpp [Constants] Use isUIntN/isIntN from MathExtras instead of reimplementing the same code. NFC 2017-06-07 00:58:05 +00:00
ConstantsContext.h [IR] Stop deleting other signatures of User::operator new when we override one signature in a class derived from User 2017-06-12 23:25:15 +00:00
Core.cpp [LLVM-C] [OCaml] Expose Type::subtypes. 2017-06-05 11:49:52 +00:00
DIBuilder.cpp Move Object format code to lib/BinaryFormat. 2017-06-07 03:48:56 +00:00
DataLayout.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
DebugInfo.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
DebugInfoMetadata.cpp Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
DebugLoc.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
DiagnosticInfo.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
DiagnosticPrinter.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
Dominators.cpp Handle non-unique edges in edge-dominance 2017-06-05 16:27:09 +00:00
Function.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
GCOV.cpp [gcov] Sort file info before printing it 2017-04-26 00:16:10 +00:00
GVMaterializer.cpp
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Globals.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
IRBuilder.cpp [Atomics][LoopIdiom] Recognize unordered atomic memcpy 2017-06-06 16:45:25 +00:00
IRPrintingPasses.cpp Implement getPassName() for IR printing passes. 2017-03-10 07:09:20 +00:00
InlineAsm.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
Instruction.cpp [LoopVectorize] Don't preserve nsw/nuw flags on shrunken ops. 2017-06-09 03:56:15 +00:00
Instructions.cpp [IR] Remove getNumSuccessorsV/getSuccessorV/setSuccessorV from the TerminatorInst subclasses as much as possible now that Value has been de-virtualized 2017-06-08 23:23:08 +00:00
IntrinsicInst.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
LLVMBuild.txt Move Object format code to lib/BinaryFormat. 2017-06-07 03:48:56 +00:00
LLVMContext.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
LLVMContextImpl.cpp [IR] De-virtualize ~Value to save a vptr 2017-05-18 17:24:10 +00:00
LLVMContextImpl.h Move Object format code to lib/BinaryFormat. 2017-06-07 03:48:56 +00:00
LegacyPassManager.cpp [llvm] Remove double semicolons 2017-06-06 05:08:36 +00:00
MDBuilder.cpp Add function importing info from samplepgo profile to the module summary. 2017-02-28 18:09:44 +00:00
Mangler.cpp Move llvm::emitLinkerFlagsForGlobalCOFF() to Mangler. 2017-03-31 04:46:50 +00:00
Metadata.cpp Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
MetadataImpl.h
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Module.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
ModuleSummaryIndex.cpp Re-apply r302108, "IR: Use pointers instead of GUIDs to represent edges in the module summary. NFCI." 2017-05-04 18:03:25 +00:00
Operator.cpp [IR] Remove some unneeded includes from Operator.h and fix cpp files that were transitively depending on it. NFC 2017-03-20 05:08:41 +00:00
OptBisect.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
Pass.cpp Cleanup dump() functions. 2017-01-28 02:02:38 +00:00
PassManager.cpp [PM] Introduce an analysis set used to preserve all analyses over 2017-01-15 06:32:49 +00:00
PassRegistry.cpp [LegacyPassManager] Remove TargetMachine constructors 2017-05-18 17:21:13 +00:00
ProfileSummary.cpp Reapply r271728 after adding move cobstructor for ProfileSummaryInfo 2016-06-03 22:54:26 +00:00
Statepoint.cpp Rename AttributeSet to AttributeList 2017-03-21 16:57:19 +00:00
SymbolTableListTraitsImpl.h ADT: Remove external uses of ilist_iterator, NFC 2016-09-03 01:22:56 +00:00
Type.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
TypeFinder.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
Use.cpp
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User.cpp [IR] De-virtualize ~Value to save a vptr 2017-05-18 17:24:10 +00:00
Value.cpp [IR] De-virtualize ~Value to save a vptr 2017-05-18 17:24:10 +00:00
ValueSymbolTable.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
ValueTypes.cpp [MVT] add v1i1 MVT 2017-05-18 11:29:41 +00:00
Verifier.cpp IR: Replace the "Linker Options" module flag with "llvm.linker.options" named metadata. 2017-06-12 20:10:48 +00:00