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* Reinstate r133516 "Remove some unnecessary uses of c_str()." A trailing nullChad Rosier2011-06-28
| | | | | | | | | | character in std::string was causing failures for a few ObjC and Obj-C++ tests when -flto was enabled. Revision 133999 resolved this issue. Thanks Jay! rdar://9685235 PR10210 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134017 91177308-0d34-0410-b5e6-96231b3b80d8
* PR10210: New method ConstantArray::getAsCString(). Use it in LTO toJay Foad2011-06-28
| | | | | | | avoid getting embedded trailing null bytes in std::strings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133999 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r133516 "Remove some unnecessary uses of c_str()."Chad Rosier2011-06-27
| | | | | | | | This was causing compile-time failures for some of the Objc and Obj-C++ benchmarks. The specific errors were of the form: "ld: duplicate symbol …" rdar://9660124 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133955 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some unnecessary uses of c_str().Jay Foad2011-06-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133516 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify the handling of pcrel relocations on ELF. Now we do the right thingRafael Espindola2011-05-01
| | | | | | | | | | for all symbol differences and can drop the old EmitPCRelSymbolValue method. This also make getExprForFDESymbol on ELF equal to the one on MachO, and it can be made non-virtual. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130634 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused argument.Rafael Espindola2011-04-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129955 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in comment.Nick Lewycky2011-04-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129902 91177308-0d34-0410-b5e6-96231b3b80d8
* Use lazy parsing in LTO. Unfortunately this is only a 3% time saving forRafael Espindola2011-03-18
| | | | | | 'ar'. Have to figure out how to make libLTO even lazier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127901 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify the computation of undefined symbols. Instead of walkingRafael Espindola2011-03-18
| | | | | | | | | | | | | | | | | | | | | | | functions and initializers, just report the declarations present in the module. The motivation is to open the way for using the lazy module parsing, which should speed up clients that just want a symbol list (nm, ar). This is slightly less precise, but since both -strip-dead-prototypes and -globaldce are part of the standard pipeline, this shouldn't change the result for clang/dragonegg produced binaries. Any decl in an IL file was also put there because a FE expected it to be necessary, so this should not be a problem for "-O0 -emit-llvm". As a sanity check, I have bootstrapped clang on linux and built firefox on both linux and darwin. A clang bootstrap on darwin with LTO fails with or without this patch because, ironically, the linker doesn't like the combination of dead_strip and LTO when building libLTO.so :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127870 91177308-0d34-0410-b5e6-96231b3b80d8
* tools/lto/LTOModule.cpp: Eliminate an unused variable.NAKAMURA Takumi2011-03-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127859 91177308-0d34-0410-b5e6-96231b3b80d8
* Use RequiresNullTerminator to create buffers without a null terminatorRafael Espindola2011-03-17
| | | | | | instead of copying. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127835 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support in the LTO library for loading an object from the middleRafael Espindola2011-03-17
| | | | | | of an file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127781 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a special streamer to libLTO that just records symbols definitions andRafael Espindola2011-03-02
| | | | | | | | | | | uses. The result produced by the streamer is used to give the linker more accurate information and to add to llvm.compiler.used. The second improvement removes the need for the user to add __attribute__((used)) to functions only used in inline asm. The first one lets us build firefox with LTO on Darwin :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126830 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some memory leaks and avoid looking in the hash tables twice.Rafael Espindola2011-02-20
| | | | | | libxul links in 7m0.403s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126085 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove std::string version of getNameWithPrefix.Rafael Espindola2011-02-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125363 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't open the file again in the gold plugin. To be able to do this, updateRafael Espindola2011-02-08
| | | | | | MemoryBuffer::getOpenFile to not close the file descriptor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125128 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't tell the linker about available_externally definitions. If we do, it willRafael Espindola2011-02-01
| | | | | | complain about duplicated definitions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124634 91177308-0d34-0410-b5e6-96231b3b80d8
* MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> ↵Michael J. Spencer2010-12-16
| | | | | | via an out parm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121958 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed version of 121434 with no new memory leaks.Rafael Espindola2010-12-10
| | | | 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 Espindola2010-12-10
| | | | 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 Espindola2010-12-09
| | | | | | | | | | | 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
* More code not compiled by CMake. :(.Michael J. Spencer2010-12-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121387 91177308-0d34-0410-b5e6-96231b3b80d8
* I swear I did a make clean and make before committing all this...Michael J. Spencer2010-11-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120304 91177308-0d34-0410-b5e6-96231b3b80d8
* Record sysbols created by aliases. Fixes PR8414.Rafael Espindola2010-10-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116910 91177308-0d34-0410-b5e6-96231b3b80d8
* Provide a fast "get me the target triple from the module" API. This canBill Wendling2010-10-06
| | | | | | | | | drastically reduce the linking time during LTO. Patch by Shantonu Sen! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115728 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new scope type "LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN" for theBill Wendling2010-09-27
| | | | | | | "linker_private_weak_auto_def" linkage type for LTO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114868 91177308-0d34-0410-b5e6-96231b3b80d8
* The "linker_private_weak*" linkages should set the LTO_SYMBOL_DEFINITION_WEAKBill Wendling2010-09-27
| | | | | | | during LTO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114850 91177308-0d34-0410-b5e6-96231b3b80d8
* lto: Fix an inverted conditional which prevented the addition of symbols scrapedDaniel Dunbar2010-08-11
| | | | | | | | from inline assembly, except in cases where they had already been seen (in which case they would get added twice). - I can't see how this ever worked... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110757 91177308-0d34-0410-b5e6-96231b3b80d8
* lto: Fix gratuitous memory leaks.Daniel Dunbar2010-08-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110756 91177308-0d34-0410-b5e6-96231b3b80d8
* lto: Reduce nesting.Daniel Dunbar2010-08-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110752 91177308-0d34-0410-b5e6-96231b3b80d8
* LTOModule.cpp: Fix numerous style issues.Daniel Dunbar2010-08-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110751 91177308-0d34-0410-b5e6-96231b3b80d8
* Make it possible to set the target triple and expose that with an option in theRafael Espindola2010-08-09
| | | | | | gold plugin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110604 91177308-0d34-0410-b5e6-96231b3b80d8
* The getDefaultSubtargetFeatures method of SubtargetFeature did actually return aBill Wendling2010-05-11
| | | | | | | | | | | | | | | | string of features for that target. However LTO was using that string to pass into the "create target machine" stuff. That stuff needed the feature string to be in a particular form. In particular, it needed the CPU specified first and then the attributes. If there isn't a CPU specified, it required it to be blank -- e.g., ",+altivec". Yuck. Modify the getDefaultSubtargetFeatures method to be a non-static member function. For all attributes for a specific subtarget, it will add them in like normal. It will also take a CPU string so that it can satisfy this horrible syntax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103451 91177308-0d34-0410-b5e6-96231b3b80d8
* stringref-ize the MemoryBuffer::get apis. This requiresChris Lattner2010-04-05
| | | | | | | a co-committed clang patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100485 91177308-0d34-0410-b5e6-96231b3b80d8
* give Mangler access to TargetData.Chris Lattner2010-03-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98378 91177308-0d34-0410-b5e6-96231b3b80d8
* make the mangler take an MCContext instead of an MAI.Chris Lattner2010-03-12
| | | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98363 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill ModuleProvider and ghost linkage by inverting the relationship betweenJeffrey Yasskin2010-01-27
| | | | | | | | | | | | | | | | | | | | | | Modules and ModuleProviders. Because the "ModuleProvider" simply materializes GlobalValues now, and doesn't provide modules, it's renamed to "GVMaterializer". Code that used to need a ModuleProvider to materialize Functions can now materialize the Functions directly. Functions no longer use a magic linkage to record that they're materializable; they simply ask the GVMaterializer. Because the C ABI must never change, we can't remove LLVMModuleProviderRef or the functions that refer to it. Instead, because Module now exposes the same functionality ModuleProvider used to, we store a Module* in any LLVMModuleProviderRef and translate in the wrapper methods. The bindings to other languages still use the ModuleProvider concept. It would probably be worth some time to update them to follow the C++ more closely, but I don't intend to do it. Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94686 91177308-0d34-0410-b5e6-96231b3b80d8
* now that mangler is in libtarget, it can use MCAsmInfo instead of clientsChris Lattner2010-01-17
| | | | | | | having to pass various fields from it in. Simplify. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93686 91177308-0d34-0410-b5e6-96231b3b80d8
* move the mangler into libtarget from vmcore.Chris Lattner2010-01-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93664 91177308-0d34-0410-b5e6-96231b3b80d8
* remove calls to dead methods.Chris Lattner2010-01-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93657 91177308-0d34-0410-b5e6-96231b3b80d8
* switch liblto to use the new getNameWithPrefix() method instead of ↵Chris Lattner2010-01-16
| | | | | | getMangledName. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93643 91177308-0d34-0410-b5e6-96231b3b80d8
* Added getDefaultSubtargetFeatures method to SubtargetFeatures class which ↵Viktor Kutuzov2009-11-18
| | | | | | returns a correct feature string for given triple. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89236 91177308-0d34-0410-b5e6-96231b3b80d8
* pretty mechanical changes to match coding guidelines (blessed by sabre on IRC)Gabor Greif2009-09-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82603 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.Chris Lattner2009-08-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79763 91177308-0d34-0410-b5e6-96231b3b80d8
* No really, it's unused.Daniel Dunbar2009-08-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78047 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove now unused arguments from TargetRegistry::lookupTarget.Daniel Dunbar2009-08-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77950 91177308-0d34-0410-b5e6-96231b3b80d8
* Pass target triple string in to TargetMachine constructor.Daniel Dunbar2009-08-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is not just a matter of passing in the target triple from the module; currently backends are making decisions based on the build and host architecture. The goal is to migrate to making these decisions based off of the triple (in conjunction with the feature string). Thus most clients pass in the target triple, or the host triple if that is empty. This has one important change in the way behavior of the JIT and llc. For the JIT, it was previously selecting the Target based on the host (naturally), but it was setting the target machine features based on the triple from the module. Now it is setting the target machine features based on the triple of the host. For LLC, -march was previously only used to select the target, the target machine features were initialized from the module's triple (which may have been empty). Now the target triple is taken from the module, or the host's triple is used if that is empty. Then the triple is adjusted to match -march. The take away is that -march for llc is now used in conjunction with the host triple to initialize the subtarget. If users want more deterministic behavior from llc, they should use -mtriple, or set the triple in the input module. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77946 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove memory corruption bug. string.c_str() was returning a temporary that wasNick Lewycky2009-07-28
| | | | | | | dead before we used it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77304 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix libLTO:Nick Lewycky2009-07-26
| | | | | | | | | | | | | * Call InitializeAllTargets on every path where we might query the TargetRegistry. This fixes PR4604. * flush the formatted_raw_ostream& or else not all of the assembly will make it to the .s file. (It doesn't do this in its destructor?!) * Due to a reversed conditional, libLTO was reporting many symbols as both defined and undefined, including two definitions of the same symbol name in its symbol list. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77170 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove Value::getName{Start,End}, the last of the old Name APIs.Daniel Dunbar2009-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77152 91177308-0d34-0410-b5e6-96231b3b80d8
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