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* Remove AllowQuotesInName and friends from MCAsmInfo.Rafael Espindola2013-11-13
| | | | | | | | | | | Accepting quotes is a property of an assembler, not of an object file. For example, ELF can support any names for sections and symbols, but the gnu assembler only accepts quotes in some contexts and llvm-mc in a few more. LLVM should not produce different symbols based on a guess about which assembler will be reading the code it is printing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194575 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Reapply r185872 now that the address sanitizer has been changed to ↵Arnold Schwaighofer2013-08-08
| | | | | | | | support this." This reverts commit r187939. It broke an O0 build of a spec benchmark. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188012 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r185872 now that the address sanitizer has been changed to support this.Bill Wendling2013-08-07
| | | | | | | | | | | | | | | | | | | | | | 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> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187939 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r185872 - "Stop emitting weak symbols into the "coal" sections"Alexander Potapenko2013-07-09
| | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185923 91177308-0d34-0410-b5e6-96231b3b80d8
* Stop emitting weak symbols into the "coal" sections.Bill Wendling2013-07-08
| | | | | | | | | | | | | | | | | | 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> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185872 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an obvious typo that's preventing x86 (32-bit) from using .literal16.Evan Cheng2011-07-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135535 91177308-0d34-0410-b5e6-96231b3b80d8
* Be nice to Xcore and the XMOS assembler and avoid quoting section namesJoerg Sonnenberger2011-03-04
| | | | | | | that contain only letters, digits and the characters "_" and ".". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127028 91177308-0d34-0410-b5e6-96231b3b80d8
* Bug#9033: For the ELF assembler output, always quote the section name.Joerg Sonnenberger2011-03-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126963 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch llvm to using comdats. For now always use groups with a singleRafael Espindola2011-02-14
| | | | | | section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125526 91177308-0d34-0410-b5e6-96231b3b80d8
* Update tests.Rafael Espindola2011-01-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123591 91177308-0d34-0410-b5e6-96231b3b80d8
* two changes:Chris Lattner2010-08-30
| | | | | | | | | | | | | | 1) nuke ConstDataCoalSection, which is dead. 2) revise my previous patch for rdar://8018335, which was completely wrong. Specifically, it doesn't make sense to mark __TEXT,__const_coal as PURE_INSTRUCTIONS, because it is for readonly data. templates (it turns out) go to const_coal_nt. The real fix for rdar://8018335 was to give ConstTextCoalSection a section kind of ReadOnly instead of Text. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112496 91177308-0d34-0410-b5e6-96231b3b80d8
* fix the definitions of ConstTextCoalSection/ConstDataCoalSectionChris Lattner2010-07-15
| | | | | | | | | | | | | to keep "Text" in sync with the "pure instructions" section attribute. Lack of this attribute was preventing the assembler from emitting multibyte noops instructions for templates (and inlines, and other coalesced stuff) and was causing the assembler to mismatch .o files. This fixes rdar://8018335 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108461 91177308-0d34-0410-b5e6-96231b3b80d8
* round zero-byte .zerofill directives up to 1 byte. ThisChris Lattner2010-04-27
| | | | | | | | should fix some "g++.dg-struct-layout-1" failures, rdar://7886017 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102421 91177308-0d34-0410-b5e6-96231b3b80d8
* add llvm codegen support for -ffunction-sections and -fdata-sections,Chris Lattner2010-04-13
| | | | | | | patch by Sylvere Teissier! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101106 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the recent alignment changes. They're broken for -Os because,Dan Gohman2010-04-02
| | | | | | | | in particular, they end up aligning strings at 16-byte boundaries, and there's no way for GlobalOpt to check OptForSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100172 91177308-0d34-0410-b5e6-96231b3b80d8
* Update this test for the new preferred alignment heuristics.Dan Gohman2010-04-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100165 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't emit global symbols into the (__TEXT,__ustring) section on Darwin. ThisCharles Davis2010-03-05
| | | | | | | | | | is a workaround for <rdar://problem/7672401/> (which I filed). This let's us build Wine on Darwin, and it gets the Qt build there a little bit further (so Doug says). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97845 91177308-0d34-0410-b5e6-96231b3b80d8
* emit .ascii and .asciz through MCStreamer.Chris Lattner2010-01-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94282 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a significant difference between llvm and gcc on ELF systems:Chris Lattner2010-01-19
| | | | | | | | | GCC would put weak zero initialized mutable data in the .bss section, we would put it into a crasy '.gnu.linkonce.b.test,"aw",@nobits' section. Fixing this will allow simplifications next up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93844 91177308-0d34-0410-b5e6-96231b3b80d8
* there is no need to emit a .section above .comm on linux.Chris Lattner2010-01-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93842 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate more uses of llvm-as and llvm-dis.Dan Gohman2009-09-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
* Various AsmWriter output cleanups. Use WriteAsOperand instead ofDan Gohman2009-08-13
| | | | | | | PrintUnmangledNameSafely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78878 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the big switch: Change MCSectionMachO to represent a section *semantically*Chris Lattner2009-08-10
| | | | | | | | | | | | | | | | | | instead of syntactically as a string. This means that it keeps track of the segment, section, flags, etc directly and asmprints them in the right format. This also includes parsing and validation support for llvm-mc and "attribute(section)", so we should now start getting errors about invalid section attributes from the compiler instead of the assembler on darwin. Still todo: 1) Uniquing of darwin mcsections 2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h] 3) there are a few FIXMEs, for example what is the syntax to get the S_GB_ZEROFILL segment type? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78547 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance codegen to put 16-bit character strings into the Chris Lattner2009-08-04
| | | | | | | __TEXT,__ustring section on darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78068 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support emiting for 2/4 byte mergable strings to the ".rodata.str*"Chris Lattner2009-08-04
| | | | | | | section on ELF targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78066 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR4650: we only track sizes for certain objects, so only put somethingChris Lattner2009-07-31
| | | | | | | | | into the mergable section if it is one of our special cases. This could obviously be improved, but this is the minimal fix and restores us to the previous behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77679 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR4584 with a trivial patch now that the pieces are in place.Chris Lattner2009-07-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77434 91177308-0d34-0410-b5e6-96231b3b80d8
* fix testcase for previous patch.Chris Lattner2009-07-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77338 91177308-0d34-0410-b5e6-96231b3b80d8
* update testcase.Chris Lattner2009-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77192 91177308-0d34-0410-b5e6-96231b3b80d8
* put normal data into .data instead of .data.rel on elf systems.Chris Lattner2009-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77116 91177308-0d34-0410-b5e6-96231b3b80d8
* finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobalChris Lattner2009-07-26
| | | | | | | | for now. Make the section switching directives more consistent by not including \n and including \t for them all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77107 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify DarwinTargetAsmInfo::SelectSectionForGlobal a bitChris Lattner2009-07-26
| | | | | | | | | | | | | and make it more aggressive, we now put: const int G2 __attribute__((weak)) = 42; into the text (readonly) segment like gcc, previously we put it into the data (readwrite) segment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77104 91177308-0d34-0410-b5e6-96231b3b80d8
* add the most expedient hack to fix PR4619, along with a testcase.Chris Lattner2009-07-25
Thanks to Rafael for the great example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77083 91177308-0d34-0410-b5e6-96231b3b80d8
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