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* [-cxx-abi microsoft] Stick zero initialized symbols into the .bss section ↵David Majnemer2013-08-131-4/+7
| | | | | | | | | | | | | | | | | | | | | | | for COFF Summary: We need to do two things: - Initialize BSSSection in MCObjectFileInfo::InitCOFFMCObjectFileInfo - Teach TargetLoweringObjectFileCOFF::SelectSectionForGlobal what to do with it This fixes PR16861. Reviewers: rnk Reviewed By: rnk CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1361 llvm-svn: 188244
* Revert "Reapply r185872 now that the address sanitizer has been changed to ↵Arnold Schwaighofer2013-08-081-6/+6
| | | | | | | | support this." This reverts commit r187939. It broke an O0 build of a spec benchmark. llvm-svn: 188012
* Revert "coff also doesn't have a ReadOnlySection yet, (!)"David Majnemer2013-08-081-0/+3
| | | | | | | | | | | This reverts commit r77814. We were sticking global constants in the .data section instead of in the .rdata section when emitting for COFF. This fixes PR16831. llvm-svn: 187956
* Reapply r185872 now that the address sanitizer has been changed to support this.Bill Wendling2013-08-071-6/+6
| | | | | | | | | | | | | | | | | | | | | Original commit message: Stop emitting weak symbols into the "coal" sections. The Mach-O linker has been able to support the weak-def bit on any symbol for quite a while now. The compiler however continued to place these symbols into a "coal" section, which required the linker to map them back to the base section name. Replace the sections like this: __TEXT/__textcoal_nt instead use __TEXT/__text __TEXT/__const_coal instead use __TEXT/__const __DATA/__datacoal_nt instead use __DATA/__data <rdar://problem/14265330> llvm-svn: 187939
* Use proper section suffix for COFF weak symbolsNico Rieck2013-07-291-4/+2
| | | | | | | | | 32-bit symbols have "_" as global prefix, but when forming the name of COMDAT sections this prefix is ignored. The current behavior assumes that this prefix is always present which is not the case for 64-bit and names are truncated. llvm-svn: 187356
* Revert r185872 - "Stop emitting weak symbols into the "coal" sections"Alexander Potapenko2013-07-091-6/+6
| | | | | | | | | | | | | This patch broke `make check-asan` on Mac, causing ld warnings like the following one: ld: warning: direct access in __GLOBAL__I_a to global weak symbol ___asan_mapping_scale means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings. The resulting test binaries crashed with incorrect ASan warnings. llvm-svn: 185923
* Stop emitting weak symbols into the "coal" sections.Bill Wendling2013-07-081-6/+6
| | | | | | | | | | | | | | | | | The Mach-O linker has been able to support the weak-def bit on any symbol for quite a while now. The compiler however continued to place these symbols into a "coal" section, which required the linker to map them back to the base section name. Replace the sections like this: __TEXT/__textcoal_nt instead use __TEXT/__text __TEXT/__const_coal instead use __TEXT/__const __DATA/__datacoal_nt instead use __DATA/__data <rdar://problem/14265330> llvm-svn: 185872
* MC: Implement COFF .linkonce directiveNico Rieck2013-07-061-3/+3
| | | | llvm-svn: 185753
* PR16493: DebugInfo with TLS on PPC crashing due to invalid relocationDavid Blaikie2013-07-011-4/+0
| | | | | | | | Restrict the current TLS support to X86 ELF for now. Test that we don't produce it on PPC & we can flesh that test case out with the right thing once someone implements it. llvm-svn: 185389
* DebugInfo: PR14728: TLS supportDavid Blaikie2013-06-281-0/+4
| | | | | | | | | | | | | | Based on GCC's output for TLS variables (OP_constNu, x@dtpoff, OP_lo_user), this implements debug info support for TLS in ELF. Verified that this output is correct/sufficient on Linux (using gold - if you're using binutils-ld, you'll need something with the fix for http://sourceware.org/bugzilla/show_bug.cgi?id=15685 in it). Support on non-ELF is sort of "arbitrary" at the moment - if Apple folks want to discuss (or just go ahead & implement) how this should work in MachO, etc, I'm open. llvm-svn: 185203
* Micro-optimizationBill Wendling2013-04-261-5/+4
| | | | | | | TLVs probably won't be as common as the other types of variables. Check for them last before defaulting to "DATA". llvm-svn: 180631
* [mc-coff] Forward Linker Option flags into the .drectve sectionReid Kleckner2013-04-251-0/+46
| | | | | | | | | | | | | | Summary: This is modelled on the Mach-O linker options implementation and should support a Clang implementation of #pragma comment(lib/linker). Reviewers: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D724 llvm-svn: 180569
* Windows TLS: Section name prefix to ensure correct orderAnton Korobeynikov2013-03-181-2/+5
| | | | | | | | | | | The linker sorts the .tls$<xyz> sections by name, and we need to make sure any extra sections we produce (e.g. for weak globals) always end up between .tls$AAA and .tls$ZZZ, even if the name starts with e.g. an underscore. Patch by David Nadlinger! llvm-svn: 177256
* Remove unused #includes.Bill Wendling2013-03-051-1/+0
| | | | llvm-svn: 176467
* [MC/Mach-O] Implement integrated assembler support for linker options.Daniel Dunbar2013-01-181-7/+26
| | | | | | - Also, fixup syntax errors in LangRef and missing newline in the MCAsmStreamer. llvm-svn: 172837
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-021-6/+6
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-031-11/+11
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
* Use TARGET2 relocation for TType references on ARM.Anton Korobeynikov2012-11-141-34/+36
| | | | | | | | Do some cleanup of the code while here. Inspired by patch by Logan Chien! llvm-svn: 167904
* [MC][COFF] Emit weak symbols to the correct section. Patch by Dmitry Puzirev!Michael J. Spencer2012-11-131-2/+13
| | | | llvm-svn: 167877
* Revert the majority of the next patch in the address space series:Chandler Carruth2012-11-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r165941: Resubmit the changes to llvm core to update the functions to support different pointer sizes on a per address space basis. Despite this commit log, this change primarily changed stuff outside of VMCore, and those changes do not carry any tests for correctness (or even plausibility), and we have consistently found questionable or flat out incorrect cases in these changes. Most of them are probably correct, but we need to devise a system that makes it more clear when we have handled the address space concerns correctly, and ideally each pass that gets updated would receive an accompanying test case that exercises that pass specificaly w.r.t. alternate address spaces. However, from this commit, I have retained the new C API entry points. Those were an orthogonal change that probably should have been split apart, but they seem entirely good. In several places the changes were very obvious cleanups with no actual multiple address space code added; these I have not reverted when I spotted them. In a few other places there were merge conflicts due to a cleaner solution being implemented later, often not using address spaces at all. In those cases, I've preserved the new code which isn't address space dependent. This is part of my ongoing effort to clean out the partial address space code which carries high risk and low test coverage, and not likely to be finished before the 3.2 release looms closer. Duncan and I would both like to see the above issues addressed before we return to these changes. llvm-svn: 167222
* Resubmit the changes to llvm core to update the functions to support ↵Micah Villmow2012-10-151-2/+2
| | | | | | different pointer sizes on a per address space basis. llvm-svn: 165941
* Revert 165732 for further review.Micah Villmow2012-10-111-2/+2
| | | | llvm-svn: 165747
* Add in the first iteration of support for llvm/clang/lldb to allow variable ↵Micah Villmow2012-10-111-2/+2
| | | | | | per address space pointer sizes to be optimized correctly. llvm-svn: 165726
* Move TargetData to DataLayout.Micah Villmow2012-10-081-6/+6
| | | | llvm-svn: 165402
* Remove tabs.Bill Wendling2012-07-191-2/+3
| | | | llvm-svn: 160475
* Move the support for using .init_array from ARM to the genericRafael Espindola2012-06-191-8/+40
| | | | | | | | | | TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM, on X86 it is not easy to find out if .init_array should be used or not, so the decision is made via TargetOptions and defaults to off. Add a command line option to llc that enables it. llvm-svn: 158692
* Look for the 'Is Simulated' module flag. This indicates that the program is ↵Bill Wendling2012-04-241-4/+5
| | | | | | compiled to run on a simulator. llvm-svn: 155435
* Fix to make sure that a comdat group gets generated correctly for a static ↵Anton Korobeynikov2012-02-231-1/+2
| | | | | | | | | | member of instantiated C++ templates. Patch by Kristof Beyls! llvm-svn: 151250
* ... and it's probably best to use the correct alignment, rather than just ↵David Chisnall2012-02-171-1/+1
| | | | | | guessing that it's the same as the size. llvm-svn: 150813
* It turns out that putting an 8-byte symbol in a 4-byte section makes Solaris ↵David Chisnall2012-02-171-3/+3
| | | | | | | | | ld sulk. GNU ld is perfectly happy with it, which is worrying for a whole other set of reasons... Thanks to Anton, Duncan and Rafael for helping me track this down. Pointy hat to Rafael for introducing the bug in the first place. llvm-svn: 150811
* Use 'getDataNoRel' for the section kind.Bill Wendling2012-02-151-5/+4
| | | | llvm-svn: 150628
* Modify the code that emits the module flags to use the new module flags accessorBill Wendling2012-02-151-36/+34
| | | | | | | | | method. This allows the target lowering code to not have to deal with MDNodes. Also, avoid leaking memory like a sieve by not creating a global variable for the image info section, but just emitting the code directly. llvm-svn: 150624
* Add code to the target lowering object file module to handle module flags.Bill Wendling2012-02-141-0/+60
| | | | | | | | The MachO back-end needs to emit the garbage collection flags specified in the module flags. This is a WIP, so the front-end hasn't been modified to emit these flags just yet. Documentation and front-end switching to occur soon. llvm-svn: 150507
* Add support for implicit TLS model used with MS VC runtime.Anton Korobeynikov2012-02-111-1/+10
| | | | | | Patch by Kai Nacke! llvm-svn: 150307
* Properly emit ctors / dtors with priorities into desired sectionsAnton Korobeynikov2012-01-251-0/+26
| | | | | | | | and let linker handle the rest. This finally fixes PR5329 llvm-svn: 148990
* More dead code removal (using -Wunreachable-code)David Blaikie2012-01-201-4/+0
| | | | llvm-svn: 148578
* On MachO, the pointer to the personality function should always be in theBill Wendling2011-11-291-3/+1
| | | | | | | | non_lazy_symbol_pointers section (__IMPORT,__pointers). Ignore the 'hidden' part since that will place it in the wrong section. <rdar://problem/10443720> llvm-svn: 145356
* Remove all remaining uses of Value::getNameStr().Benjamin Kramer2011-11-151-6/+6
| | | | llvm-svn: 144648
* Check the visibility of the global variable before placing it into the stubsBill Wendling2011-10-241-2/+6
| | | | | | | table. A hidden variable could potentially end up in both lists. <rdar://problem/10336715> llvm-svn: 142869
* Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.Evan Cheng2011-07-201-16/+0
| | | | | | | 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. llvm-svn: 135611
* Add MCObjectFileInfo and sink the MCSections initialization code fromEvan Cheng2011-07-201-519/+0
| | | | | | | | TargetLoweringObjectFileImpl down to MCObjectFileInfo. TargetAsmInfo is done to one last method. It's *almost* gone! llvm-svn: 135569
* Fix an obvious typo that's preventing x86 (32-bit) from using .literal16.Evan Cheng2011-07-191-1/+1
| | | | llvm-svn: 135535
* Fix up TargetLoweringObjectFile ctors to properly initialize fields.Evan Cheng2011-07-131-0/+41
| | | | llvm-svn: 135068
* Use the presence of the __compact_unwind section to indicate that a targetBill Wendling2011-06-231-10/+7
| | | | | | supports compact unwind info instead of having a separate flag indicating this. llvm-svn: 133685
* Add a flag that indicates whether a target supports compact unwind info or not.Bill Wendling2011-06-221-2/+6
| | | | llvm-svn: 133662
* Add a __LD,__compact_unwind section.Bill Wendling2011-06-221-0/+6
| | | | | | | | If the linker supports it, this will hold the CIE and FDE information in a compact format. The implementation of the compact unwinding emission is coming soon. llvm-svn: 133658
* Fix invalid uses of Twine. Hopefully this fixes the problem that Takumi isRafael Espindola2011-06-131-7/+7
| | | | | | having. llvm-svn: 132898
* Fix a silly error I introduce in r131951.Rafael Espindola2011-06-071-4/+1
| | | | | | Fixes PR10095. llvm-svn: 132735
* Add the suffix to the Win64 EH data sections' names if given. Add a test forCharles Davis2011-05-271-0/+22
| | | | | | this. XFAIL'd, because the COFF AsmParser can't handle .section yet. llvm-svn: 132220
* Revert r132111. I built Release (without Asserts), so I didn't know about theCharles Davis2011-05-261-2/+0
| | | | | | assert that prevented setting alignment on section creation. llvm-svn: 132113
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