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* Merging r195148:Bill Wendling2013-11-271-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | ------------------------------------------------------------------------ r195148 | rafael | 2013-11-19 11:52:52 -0800 (Tue, 19 Nov 2013) | 15 lines Support multiple COFF sections with the same name but different COMDAT. This is the first step to fix pr17918. It extends the .section directive a bit, inspired by what the ELF one looks like. The problem with using linkonce is that given .section foo .linkonce.... .section foo .linkonce we would already have switched sections when getting to .linkonce. The cleanest solution seems to be to add the comdat information in the .section itself. ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195822 91177308-0d34-0410-b5e6-96231b3b80d8
* Speling fixes.Benjamin Kramer2013-10-221-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193165 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Implement COFF .linkonce directiveNico Rieck2013-07-061-7/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185753 91177308-0d34-0410-b5e6-96231b3b80d8
* Use pointers to the MCAsmInfo and MCRegInfo.Bill Wendling2013-06-181-5/+5
| | | | | | | | | | Someone may want to do something crazy, like replace these objects if they change or something. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184175 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace use of PathV1.h in MCContext.cpp.Rafael Espindola2013-06-141-2/+3
| | | | | | GetCurrentDirectory is now unused. Remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184003 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and ↵Manman Ren2013-03-121-4/+5
| | | | | | MCDwarfFilesCUMap git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176893 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: store the files and directories for each compile unit.Manman Ren2013-03-071-9/+20
| | | | | | | | | | | | | | | We now emit a line table for each compile unit. To reduce the prologue size of each line table, the files and directories used by each compile unit are stored in std::map<unsigned, std::vector< > > instead of std::vector< >. The prologue for a lto'ed image can be as big as 93K. Duplicating 93K for each compile unit causes a huge increase of debug info. With this patch, each prologue will only emit the files required by the compile unit. rdar://problem/13342023 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176605 91177308-0d34-0410-b5e6-96231b3b80d8
* Dwarf: support for LTO where a single object file can have multiple line tablesManman Ren2013-02-051-0/+23
| | | | | | | | | | We generate one line table for each compilation unit in the object file. Reviewed by Eric and Kevin. rdar://problem/13067005 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174445 91177308-0d34-0410-b5e6-96231b3b80d8
* We want the dwarf AT_producer for assembly source files to match clang'sKevin Enderby2013-01-161-0/+7
| | | | | | | | | | | | | | | | AT_producer. Which includes clang's version information so we can tell which version of the compiler was used. This is the first of two steps to allow us to do that. This is the llvm-mc change to provide a method to set the AT_producer string. The second step, coming soon to a clang near you, will have the clang driver pass the value of getClangFullVersion() via an flag when invoking the integrated assembler on assembly source files. rdar://12955296 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172630 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for passing -main-file-name all the way through toEric Christopher2012-12-181-0/+11
| | | | | | | | the assembler. Part of PR14624 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170390 91177308-0d34-0410-b5e6-96231b3b80d8
* Prepare LLVM to fix PR14625, exposing a hook in MCContext to manage theChandler Carruth2012-12-171-0/+13
| | | | | | | | | | compilation directory. This defaults to the current working directory, just as it always has, but now an assembler can choose to override it with a custom directory. I've taught llvm-mc about this option and added a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170371 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the MCStreamer have a reset method and call that after finalization of ↵Pedro Artigas2012-12-121-9/+6
| | | | | | | | | | the asm printer, also changed MCContext to a single reset only method for simplicity as requested on the list git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170041 91177308-0d34-0410-b5e6-96231b3b80d8
* fixed valgrind issues of prior commit, this change applies r169456 changes ↵Pedro Artigas2012-12-061-1/+17
| | | | | | | | | | | | | | | back to the tree with fixes. on darwin no valgrind issues exist in the tests that used to fail. original change description: change MCContext to work on the doInitialization/doFinalization model reviewed by Evan Cheng <evan.cheng@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169553 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r169456, "change MCContext to work on the ↵NAKAMURA Takumi2012-12-061-11/+0
| | | | | | | | doInitialization/doFinalization model" It broke many builders. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169462 91177308-0d34-0410-b5e6-96231b3b80d8
* change MCContext to work on the doInitialization/doFinalization modelPedro Artigas2012-12-061-0/+11
| | | | | | | | reviewed by Evan Cheng <evan.cheng@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169456 91177308-0d34-0410-b5e6-96231b3b80d8
* Sort the #include lines for the include/... tree with the script.Chandler Carruth2012-12-031-2/+2
| | | | | | | | | | AKA: Recompile *ALL* the source code! This one went much better. No manual edits here. I spot-checked for silliness and grep-checked for really broken edits and everything seemed good. It all still compiles. Yell if you see something that looks goofy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169133 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid symbol name clash when filling TOC.Roman Divacky2012-09-181-0/+1
| | | | | | | Patch by Adhemerval Zanella. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164141 91177308-0d34-0410-b5e6-96231b3b80d8
* Make use of the LLVM_DELETED_FUNCTION macro.Craig Topper2012-08-291-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162828 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor data-in-code annotations.Jim Grosbach2012-05-181-0/+4
| | | | | | | | | | | | | | | | | | | | | | Use a dedicated MachO load command to annotate data-in-code regions. This is the same format the linker produces for final executable images, allowing consistency of representation and use of introspection tools for both object and executable files. Data-in-code regions are annotated via ".data_region"/".end_data_region" directive pairs, with an optional region type. data_region_directive := ".data_region" { region_type } region_type := "jt8" | "jt16" | "jt32" | "jta32" end_data_region_directive := ".end_data_region" The previous handling of ARM-style "$d.*" labels was broken and has been removed. Specifically, it didn't handle ARM vs. Thumb mode when marking the end of the section. rdar://11459456 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
* Prune some includes and forward declarations.Craig Topper2012-03-261-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
* Add simple support for keeping MCFixup source information.Jim Grosbach2012-01-261-0/+7
| | | | | | | Can be used to issue more user friendly diagnostics for faulty relocation constructs and such. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149092 91177308-0d34-0410-b5e6-96231b3b80d8
* Add SourceMgr to MCContext for backend diagnostics.Jim Grosbach2012-01-261-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149090 91177308-0d34-0410-b5e6-96231b3b80d8
* This is the matching change for the data structure name changes for theKevin Enderby2012-01-101-7/+7
| | | | | | | | functional change in r147860 to use DW_TAG_label's instead TAG_subprogram's. This only changes names and updates comments. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147877 91177308-0d34-0410-b5e6-96231b3b80d8
* The second part of support for generating dwarf for assembly source files. ThisKevin Enderby2011-12-091-0/+28
| | | | | | | | | | | generates the dwarf Compile Unit DIE and a dwarf subprogram DIE for each non-temporary label. The next part will be to get the clang driver to enable this when assembling a .s file. rdar://9275556 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146262 91177308-0d34-0410-b5e6-96231b3b80d8
* First part of support for generating dwarf for assembly source files with theKevin Enderby2011-11-011-0/+18
| | | | | | | | | | | | | -g flag. In this part we generate the .file for the source being assembled and the .loc's for the assembled instructions. The next part will be to generate the dwarf Compile Unit DIE and a dwarf subprogram DIE for each non-temporary label. Once the next part is done test cases will be added. rdar://9275556 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143509 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for a new extension to the .file directive:Nick Lewycky2011-10-171-1/+2
| | | | | | | | | | | .file filenumber "directory" "filename" This removes one join+split of the directory+filename in MC internals. Because bitcode files have independent fields for directory and filenames in debug info, this patch may change the .o files written by existing .bc files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142300 91177308-0d34-0410-b5e6-96231b3b80d8
* Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.Evan Cheng2011-07-201-6/+1
| | | | | | | | There is still a bit more refactoring left to do in Targets. But we are now very close to fixing all the layering issues in MC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135611 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MCObjectFileInfo and sink the MCSections initialization code fromEvan Cheng2011-07-201-1/+7
| | | | | | | | | TargetLoweringObjectFileImpl down to MCObjectFileInfo. TargetAsmInfo is done to one last method. It's *almost* gone! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135569 91177308-0d34-0410-b5e6-96231b3b80d8
* Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo downEvan Cheng2011-07-181-1/+8
| | | | | | | | | | to MCRegisterInfo. Also initialize the mapping at construction time. This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step towards fixing the layering violation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
* Diagnostic for undefined assembler local symbols.Jim Grosbach2011-06-151-1/+12
| | | | | | | | | | | | | | | | | Re-apply 133010, with fixes for inline assembler. Original commit message: "When an assembler local symbol is used but not defined in a module, a Darwin assembler wants to issue a diagnostic to that effect." Added fix to only perform the check when finalizing, as otherwise we're not done and undefined symbols may simply not have been encountered yet. Passes "make check" and a self-host check on Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133071 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 133010. Self-hosted buildbot unhappy.Jim Grosbach2011-06-141-12/+1
| | | | | | | | Apparently llvm itself generates undefined assembler local labels, causing self-hosting problems with this patch. Reverting until that's sorted out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133013 91177308-0d34-0410-b5e6-96231b3b80d8
* Diagnostic for undefined assembler local symbols.Jim Grosbach2011-06-141-1/+12
| | | | | | | | | | When an assembler local symbol is used but not defined in a module, a Darwin assembler wants to issue a diagnostic to that effect. rdar://9559714 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133010 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the StringMaps attached to MCContext use the MCContext's allocator; Eli Friedman2011-04-181-8/+8
| | | | | | | | reduces the number of calls to malloc(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129687 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Add support for disabling "temporary label" behavior. Useful for debuggingDaniel Dunbar2011-03-281-0/+7
| | | | | | on Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128430 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed version of 121434 with no new memory leaks.Rafael Espindola2010-12-101-1/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert my previous patch to make the valgrind bots happy.Rafael Espindola2010-12-101-6/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial support for the cfi directives. This is just enough to getRafael Espindola2010-12-091-1/+6
| | | | | | | | | | | f: .cfi_startproc nop .cfi_endproc assembled (on ELF). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
* It may not be an option to skip .debug_line if there are file reference in ↵Devang Patel2010-12-031-3/+0
| | | | | | already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120760 91177308-0d34-0410-b5e6-96231b3b80d8
* tidy upChris Lattner2010-12-021-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120644 91177308-0d34-0410-b5e6-96231b3b80d8
* If tehre are not any line entry then do not try to emit .debug_line section.Devang Patel2010-12-021-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120637 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename temporary symbols if they conflict with artificial symbols createdRafael Espindola2010-12-011-0/+7
| | | | | | | | | by the assembler. This was blocking parsing any large .s produced by clang for example. Fixes PR8596. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120603 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Whitespace.Michael J. Spencer2010-11-261-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120166 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a MCLineSectionOrder vector so that we produce the line tables in aRafael Espindola2010-11-191-1/+13
| | | | | | deterministic order. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119795 91177308-0d34-0410-b5e6-96231b3b80d8
* Parse and remember discriminators in .loc line. I try to output them withRafael Espindola2010-11-131-1/+3
| | | | | | | another patch. This lets us parse a bit more of the gcc 4.5 output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118975 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial comdat implementation.Rafael Espindola2010-11-111-2/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
* Use MCSectionELF in places we know we have an ELF section.Rafael Espindola2010-11-101-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed version of 118639 with an extra assert to catch similar problemsRafael Espindola2010-11-091-1/+0
| | | | | | earlier. Implicit bool -> int conversions are evil! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert previous patch. Missed a case.Rafael Espindola2010-11-091-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove IsExplicit. It was always false.Rafael Espindola2010-11-091-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
* Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel!Kevin Enderby2010-10-041-3/+4
| | | | | | | | | | | | | | | | | | 1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better named. Since it is just a predicate and isn't actually changing any state. 2) Added a missing return in the comments for setCurrentDwarfLoc() in include/llvm/MC/MCContext.h for fix formatting. 3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change state. 4) Simplified the last test in isValidDwarfFileNumber() to just a one line boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115551 91177308-0d34-0410-b5e6-96231b3b80d8