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* [Assembler] Make fatal assembler errors non-fatalOliver Stannard2015-11-171-3/+4
| | | | | | | | | | | | | | Currently, if the assembler encounters an error after parsing (such as an out-of-range fixup), it reports this as a fatal error, and so stops after the first error. However, for most of these there is an obvious way to recover after emitting the error, such as emitting the fixup with a value of zero. This means that we can report on all of the errors in a file, not just the first one. MCContext::reportError records the fact that an error was encountered, so we won't actually emit an object file with the incorrect contents. Differential Revision: http://reviews.llvm.org/D14717 llvm-svn: 253328
* Visibly fail if attempting to encode register AH,BH,CH,DH in a REX-prefixed ↵Douglas Katzman2015-11-111-0/+7
| | | | | | | | | instruction. Differential Revision: http://reviews.llvm.org/D13316 Fixes PR25003 llvm-svn: 252743
* [ELF] elfiamcu triple should imply e_machine == EM_IAMCUMichael Kuperstein2015-11-042-4/+22
| | | | | | Differential Revision: http://reviews.llvm.org/D14109 llvm-svn: 252043
* Revert r247692: Replace Triple with a new TargetTuple in MCTargetDesc/* and ↵Daniel Sanders2015-09-155-67/+68
| | | | | | | | related. NFC. Eric has replied and has demanded the patch be reverted. llvm-svn: 247702
* Re-commit r247683: Replace Triple with a new TargetTuple in MCTargetDesc/* ↵Daniel Sanders2015-09-155-68/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | and related. NFC. Summary: This is the first patch in the series to migrate Triple's (which are ambiguous) to TargetTuple's (which aren't). For the moment, TargetTuple simply passes all requests to the Triple object it holds. Once it has replaced Triple, it will start to implement the interface in a more suitable way. This change makes some changes to the public C++ API. In particular, InitMCSubtargetInfo(), createMCRelocationInfo(), and createMCSymbolizer() now take TargetTuples instead of Triples. The other public C++ API's have been left as-is for the moment to reduce patch size. This commit also contains a trivial patch to clang to account for the C++ API change. Thanks go to Pavel Labath for fixing LLDB for me. Reviewers: rengolin Subscribers: jyknight, dschuff, arsenm, rampitec, danalbert, srhines, javed.absar, dsanders, echristo, emaste, jholewinski, tberghammer, ted, jfb, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D10969 llvm-svn: 247692
* Revert r247684 - Replace Triple with a new TargetTuple ...Daniel Sanders2015-09-155-67/+68
| | | | | | LLDB needs to be updated in the same commit. llvm-svn: 247686
* Replace Triple with a new TargetTuple in MCTargetDesc/* and related. NFC.Daniel Sanders2015-09-155-68/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This is the first patch in the series to migrate Triple's (which are ambiguous) to TargetTuple's (which aren't). For the moment, TargetTuple simply passes all requests to the Triple object it holds. Once it has replaced Triple, it will start to implement the interface in a more suitable way. This change makes some changes to the public C++ API. In particular, InitMCSubtargetInfo(), createMCRelocationInfo(), and createMCSymbolizer() now take TargetTuples instead of Triples. The other public C++ API's have been left as-is for the moment to reduce patch size. This commit also contains a trivial patch to clang to account for the C++ API change. Reviewers: rengolin Subscribers: jyknight, dschuff, arsenm, rampitec, danalbert, srhines, javed.absar, dsanders, echristo, emaste, jholewinski, tberghammer, ted, jfb, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D10969 llvm-svn: 247683
* Fix namespace indentation and missing blank lines before 'public:' in ↵Daniel Sanders2015-09-151-33/+36
| | | | | | | | | | *MCAsmInfo.h. NFC. This is to reduce noise in a following commit. Also fixes a couple missing spaces before the reference operator. llvm-svn: 247679
* Add a target environment for CoreCLR.Pat Gavlin2015-08-141-1/+2
| | | | | | | | | | Although targeting CoreCLR is similar to targeting MSVC, there are certain important differences that the backend must be aware of (e.g. differences in stack probes, EH, and library calls). Differential Revision: http://reviews.llvm.org/D11012 llvm-svn: 245115
* 80-cols; NFCSanjay Patel2015-08-121-2/+2
| | | | llvm-svn: 244755
* MC: Remove MCSubtargetInfo() default constructorDuncan P. N. Exon Smith2015-07-101-3/+1
| | | | | | | | | | | | | | | | | | | | | Force all creators of `MCSubtargetInfo` to immediately initialize it, merging the default constructor and the initializer into an initializing constructor. Besides cleaning up the code a little, this makes it clear that the initializer is never called again later. Out-of-tree backends need a trivial change: instead of calling: auto *X = new MCSubtargetInfo(); InitXYZMCSubtargetInfo(X, ...); return X; they should call: return createXYZMCSubtargetInfoImpl(...); There's no real functionality change here. llvm-svn: 241957
* Change the last few internal StringRef triples into Triple objects.Daniel Sanders2015-07-061-16/+12
| | | | | | | | | | | | | | | | | | | | Summary: This concludes the patch series to eliminate StringRef forms of GNU triples from the internals of LLVM that began in r239036. At this point, the StringRef-form of GNU Triples should only be used in the public API (including IR serialization) and a couple objects that directly interact with the API (most notably the Module class). The next step is to replace these Triple objects with the TargetTuple object that will represent our authoratative/unambiguous internal equivalent to GNU Triples. Reviewers: rengolin Subscribers: llvm-commits, jholewinski, ted, rengolin Differential Revision: http://reviews.llvm.org/D10962 llvm-svn: 241472
* [X86] Fix incorrect/inefficient pushw encodings for x86-64 targetsMichael Kuperstein2015-07-051-1/+0
| | | | | | | | | | | | | Correctly support assembling "pushw $imm8" on x86-64 targets. Also some cleanup of the PUSH instructions (PUSH64i16 and PUSHi16 actually represent the same instruction) This fixes PR23996 Patch by: david.l.kreitzer@intel.com Differential Revision: http://reviews.llvm.org/D10878 llvm-svn: 241404
* Return ErrorOr from getSymbolAddress.Rafael Espindola2015-07-031-2/+4
| | | | | | | It can fail trying to get the section on ELF and COFF. This makes sure the error is handled. llvm-svn: 241366
* Replace a few more MachO only uses of getSymbolAddress.Rafael Espindola2015-07-031-3/+2
| | | | llvm-svn: 241365
* Return ErrorOr from SymbolRef::getName.Rafael Espindola2015-07-022-5/+13
| | | | | | | | | | | | This function can really fail since the string table offset can be out of bounds. Using ErrorOr makes sure the error is checked. Hopefully a lot of the boilerplate code in tools/* can go away once we have a diagnostic manager in Object. llvm-svn: 241297
* [X86] Avoid over-relaxation of 8-bit immediates in integer arithmetic ↵Michael Kuperstein2015-07-011-24/+6
| | | | | | | | | | | | | | | | | | instructions. Only consider an instruction a candidate for relaxation if the last operand of the instruction is an expression. We previously checked whether any operand is an expression, which is useless, since for all instructions concerned, the only operand that may be affected by relaxation is the last one. In addition, this removes the check for having RIP as an argument, since it was plain wrong - even when one of the arguments is RIP, relaxation may still be needed. This fixes PR9807. Patch by: david.l.kreitzer@intel.com Differential Revision: http://reviews.llvm.org/D10766 llvm-svn: 241152
* Don't return error_code from a function that doesn't fail.Rafael Espindola2015-06-302-2/+2
| | | | llvm-svn: 241033
* Cleanup getRelocationAddend.Rafael Espindola2015-06-301-2/+1
| | | | | | | | | | | Realistically, this will be returning ErrorOr for some time as refactoring the user code to check once per section will take some time. Given that, use it for checking if a relocation has addend or not. While at it, add ELFRelocationRef to simplify the users. llvm-svn: 241028
* Rename getObjectFile to getObject for consistency.Rafael Espindola2015-06-262-2/+2
| | | | llvm-svn: 240785
* Add an ELFSymbolRef type.Rafael Espindola2015-06-251-2/+2
| | | | | | | This allows user code to say Sym.getSize() instead of having to manually fetch the object. llvm-svn: 240708
* Change how symbol sizes are handled in lib/Object.Rafael Espindola2015-06-241-1/+1
| | | | | | | | | | | | | | COFF and MachO only define symbol sizes for common symbols. Reflect that in the class hierarchy by having a method for common symbols only in the base and a general one in ELF. This avoids the need of using a magic value for the size, which had a few problems * Most callers didn't check for it. * The ones that did could not tell the magic value from a file actually having that value. llvm-svn: 240529
* Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)Alexander Kornienko2015-06-238-12/+12
| | | | | | Apparently, the style needs to be agreed upon first. llvm-svn: 240390
* Avoid a Symbol -> Name -> Symbol conversion.Rafael Espindola2015-06-221-5/+1
| | | | | | | | | | | | | | Before this we were producing a TargetExternalSymbol from a MCSymbol. That meant extracting the symbol name and fetching the symbol again down the pipeline. This patch adds a DAG.getMCSymbol that lets the MCSymbol pass unchanged on the DAG. Doing so removes the need for MO_NOPREFIX and fixes the root cause of pr23900, allowing r240130 to be committed again. llvm-svn: 240300
* Improve error handling of getRelocationAddend.Rafael Espindola2015-06-191-1/+2
| | | | | | | | | | | | | | | | | | This patch changes getRelocationAddend to use ErrorOr and considers it an error to try to get the addend of a REL section. If, for example, a x86_64 file has a REL section, that file is corrupted and we should reject it. Using ErrorOr is not ideal since we check the section type once per relocation instead of once per section. Checking once per section would involve getRelocationAddend just asserting and callers checking the section before iterating over the relocations. In any case, this is an improvement and includes a test. llvm-svn: 240176
* Fixed/added namespace ending comments using clang-tidy. NFCAlexander Kornienko2015-06-198-12/+12
| | | | | | | | | | | | | The patch is generated using this command: tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \ -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \ llvm/lib/ Thanks to Eugene Kosov for the original patch! llvm-svn: 240137
* Fix "the the" in comments.Eric Christopher2015-06-191-1/+1
| | | | llvm-svn: 240112
* Move IsUsedInReloc from MCSymbolELF to MCSymbol.Rafael Espindola2015-06-171-1/+1
| | | | | | There is a free bit is MCSymbol and MachO needs the same information. llvm-svn: 239933
* Clean up redundant copies of Triple objects. NFCDaniel Sanders2015-06-162-2/+2
| | | | | | | | | | | | | | Summary: Reviewers: rengolin Reviewed By: rengolin Subscribers: llvm-commits, rengolin, jholewinski Differential Revision: http://reviews.llvm.org/D10382 llvm-svn: 239823
* Replace string GNU Triples with llvm::Triple in MCSubtargetInfo and ↵Daniel Sanders2015-06-102-13/+12
| | | | | | | | | | | | | | | | | | create*MCSubtargetInfo(). NFC. Summary: This continues the patch series to eliminate StringRef forms of GNU triples from the internals of LLVM that began in r239036. Reviewers: rafael Reviewed By: rafael Subscribers: rafael, ted, jfb, llvm-commits, rengolin, jholewinski Differential Revision: http://reviews.llvm.org/D10311 llvm-svn: 239467
* Replace string GNU Triples with llvm::Triple in create*MCRelocationInfo(). NFC.Daniel Sanders2015-06-101-3/+2
| | | | | | | | | | | | | | | | Summary: This continues the patch series to eliminate StringRef forms of GNU triples from the internals of LLVM that began in r239036. Reviewers: rafael Reviewed By: rafael Subscribers: rafael, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D10307 llvm-svn: 239465
* Replace string GNU Triples with llvm::Triple in MCAsmBackend subclasses and ↵Daniel Sanders2015-06-102-8/+4
| | | | | | | | | | | | | | | | | | create*AsmBackend(). NFC. Summary: This continues the patch series to eliminate StringRef forms of GNU triples from the internals of LLVM that began in r239036. Reviewers: echristo, rafael Reviewed By: rafael Subscribers: rafael, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D10243 llvm-svn: 239464
* Handle 16 bit PC relative relocations.Rafael Espindola2015-06-061-0/+1
| | | | | | Fixes pr23771. llvm-svn: 239214
* MC: Clean up the naming for MCMachObjectWriter. NFC.Jim Grosbach2015-06-041-8/+8
| | | | | | | | | | | | | | | | | | s/ExecutePostLayoutBinding/executePostLayoutBinding/ s/ComputeSymbolTable/computeSymbolTable/ s/BindIndirectSymbols/bindIndirectSymbols/ s/RecordTLVPRelocation/recordTLVPRelocation/ s/RecordScatteredRelocation/recordScatteredRelocation/ s/WriteLinkerOptionsLoadCommand/writeLinkerOptionsLoadCommand/ s/WriteLinkeditLoadCommand/writeLinkeditLoadCommand/ s/WriteNlist/writeNlist/ s/WriteDysymtabLoadCommand/writeDysymtabLoadCommand/ s/WriteSymtabLoadCommand/writeSymtabLoadCommand/ s/WriteSection/writeSection/ s/WriteSegmentLoadCommand/writeSegmentLoadCommand/ s/WriteHeader/writeHeader/ llvm-svn: 239119
* MC: Clean up naming in MCObjectWriter. NFC.Jim Grosbach2015-06-042-4/+4
| | | | | | | | | | | | | | | | | | | | s/WriteObject/writeObject/ s/RecordRelocation/recordRelocation/ s/IsSymbolRefDifferenceFullyResolved/isSymbolRefDifferenceFullyResolved/ s/Write8/write8/ s/WriteLE16/writeLE16/ s/WriteLE32/writeLE32/ s/WriteLE64/writeLE64/ s/WriteBE16/writeBE16/ s/WriteBE32/writeBE32/ s/WriteBE64/writeBE64/ s/Write16/write16/ s/Write32/write32/ s/Write64/write64/ s/WriteZeroes/writeZeroes/ s/WriteBytes/writeBytes/ llvm-svn: 239108
* MC: Remove obsolete MachO UseAggressiveSymbolFolding.Jim Grosbach2015-06-041-4/+2
| | | | | | | | | | Fix the FIXME and remove this old as(1) compat option. It was useful for bringup of the integrated assembler to diff object files, but now it's just causing more relocations than strictly necessary to be generated. rdar://21201804 llvm-svn: 239084
* Replace string GNU Triples with llvm::Triple in MCAsmInfo subclasses and ↵Daniel Sanders2015-06-041-2/+2
| | | | | | | | | | | | | | | | | | | | create*AsmInfo(). NFC. Summary: This is the first of several patches to eliminate StringRef forms of GNU triples from the internals of LLVM. After this is complete, GNU triples will be replaced by a more authoratitive representation in the form of an LLVM TargetTuple. Reviewers: rengolin Reviewed By: rengolin Subscribers: ted, llvm-commits, rengolin, jholewinski Differential Revision: http://reviews.llvm.org/D10236 llvm-svn: 239036
* Simplify another function that doesn't fail.Rafael Espindola2015-06-011-1/+1
| | | | llvm-svn: 238703
* MC: Clean up MCExpr naming. NFC.Jim Grosbach2015-05-305-33/+33
| | | | llvm-svn: 238634
* Remove getData.Rafael Espindola2015-05-291-15/+10
| | | | | | This completes the mechanical part of merging MCSymbol and MCSymbolData. llvm-svn: 238617
* Remove the MCSymbolData typedef.Rafael Espindola2015-05-291-5/+5
| | | | | | The getData member function is next. llvm-svn: 238611
* [WinEH] Emit EH tables for __CxxFrameHandler3 on 32-bit x86Reid Kleckner2015-05-291-0/+5
| | | | | | | | | | | | | Small (really small!) C++ exception handling examples work on 32-bit x86 now. This change disables the use of .seh_* directives in WinException when CFI is not in use. It also uses absolute symbol references in the tables instead of imagerel32 relocations. Also fixes a cache invalidation bug in MMI personality classification. llvm-svn: 238575
* Remove a trivial forwarding function. NFC.Rafael Espindola2015-05-281-5/+5
| | | | llvm-svn: 238506
* Use std::bitset for SubtargetFeatures.Michael Kuperstein2015-05-261-3/+3
| | | | | | | | | | | | Previously, subtarget features were a bitfield with the underlying type being uint64_t. Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset. No functional change. The first several times this was committed (e.g. r229831, r233055), it caused several buildbot failures. Apparently the reason for most failures was both clang and gcc's inability to deal with large numbers (> 10K) of bitset constructor calls in tablegen-generated initializers of instruction info tables. This should now be fixed. llvm-svn: 238192
* Stop using MCSectionData in MCMachObjectWriter.h.Rafael Espindola2015-05-261-11/+7
| | | | llvm-svn: 238165
* Stop using MCSectionData in MCExpr.h.Rafael Espindola2015-05-261-8/+5
| | | | llvm-svn: 238163
* Return a MCSection from MCFragment::getParent().Rafael Espindola2015-05-261-15/+22
| | | | | | Another step in merging MCSectionData and MCSection. llvm-svn: 238162
* Stop forwarding getOrdinal and setOrdinal.Rafael Espindola2015-05-251-5/+6
| | | | llvm-svn: 238139
* MC: Update MCAssembler to use MCSymbol, NFCDuncan P. N. Exon Smith2015-05-201-3/+3
| | | | | | Use `MCSymbol` over `MCSymbolData` where both are needed. llvm-svn: 237803
* MC: Use MCSymbol in MachObjectWriter, NFCDuncan P. N. Exon Smith2015-05-201-14/+13
| | | | | | | Replace uses of `MCSymbolData` with `MCSymbol` where both are needed, so we can remove the backpointer. llvm-svn: 237799
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