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* Optimize more linkonce_odr values during LTO.Rafael Espindola2013-10-211-0/+82
| | | | | | | | | | | When a linkonce_odr value that is on the dso list is not unnamed_addr we can still look to see if anything is actually using its address. If not, it is safe to hide it. This patch implements that by moving GlobalStatus to Transforms/Utils and using it in Internalize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193090 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Fix definition of SLD instruction.Matheus Almeida2013-10-211-4/+4
| | | | | | | | | The second parameter of the SLD intrinsic is the number of columns (GPR) to slide left the source array. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193076 91177308-0d34-0410-b5e6-96231b3b80d8
* [Support][YAML] Add support for accessing tags and tag handle substitution.Michael J. Spencer2013-10-181-29/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193004 91177308-0d34-0410-b5e6-96231b3b80d8
* MC asm parser: allow ?'s in symbol names, and handle @'s in names in MS asmHans Wennborg2013-10-181-0/+7
| | | | | | | | | | | | | | | | | | | | This is another (final?) stab at making us able to parse our own asm output on Windows. Symbols on Windows often contain @'s and ?'s in their names. Our asm parser didn't like this. ?'s were not allowed, and @'s were intepreted as trying to reference PLT/GOT/etc. We can't just add quotes around the bad names, since e.g. for MinGW, we use gas to assemble, and it doesn't like quotes in some places (notably in .def directives). This commit makes us allow ?'s in symbol names, and @'s in symbol names for MS assembly. Differential Revision: http://llvm-reviews.chandlerc.com/D1978 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193000 91177308-0d34-0410-b5e6-96231b3b80d8
* CodeGen: Emit a libcall if the target doesn't support 16-byte wide atomicsDavid Majnemer2013-10-181-0/+8
| | | | | | | | | | | There are targets that support i128 sized scalars but cannot emit instructions that modify them directly. The proper thing to do is to emit a libcall. This fixes PR17481. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192957 91177308-0d34-0410-b5e6-96231b3b80d8
* [DebugInfo] Remove unneeded struct member and hide struct definition. No ↵Alexey Samsonov2013-10-181-4/+1
| | | | | | functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192954 91177308-0d34-0410-b5e6-96231b3b80d8
* [DebugInfo] Remove dead code.Alexey Samsonov2013-10-181-12/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192952 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-c: Add LLVMIntPtrType{,ForAS}InContextAnders Waldenborg2013-10-171-0/+9
| | | | | | | | | | | | | | All of the Core API functions have versions which accept explicit context, in addition to ones which work on global context. This commit adds functions which accept explicit context to the Target API for consistency. Patch by Peter Zotov Differential Revision: http://llvm-reviews.chandlerc.com/D1912 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192913 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64] Add support for NEON scalar three register different instructionChad Rosier2013-10-171-0/+9
| | | | | | | | class. The instruction class includes the signed saturating doubling multiply-add long, signed saturating doubling multiply-subtract long, and the signed saturating doubling multiply long instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192908 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Added lsa instructionDaniel Sanders2013-10-171-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192895 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][msa] Removed ldx.[bhwd] and stx.[bhwd].Daniel Sanders2013-10-171-26/+0
| | | | | | | | | | These were present in a previous version of the MSA spec but are not present in the published version. There is no hardware that uses these instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192888 91177308-0d34-0410-b5e6-96231b3b80d8
* Expose install_fatal_error_handler() through the C API.Filip Pizlo2013-10-171-0/+16
| | | | | | | | | | | | | | | | | | | I expose the API with some caveats: - The C++ API involves a traditional void* opaque pointer for the fatal error callback. The C API doesn’t do this. I don’t think that the void* opaque pointer makes any sense since this is a global callback - there will only be one of them. So if you need to pass some data to your callback, just put it in a global variable. - The bindings will ignore the gen_crash_diag boolean. I ignore it because (1) I don’t know what it does, (2) it’s not documented AFAIK, and (3) I couldn’t imagine any use for it. I made the gut call that it probably wasn’t important enough to expose through the C API. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192864 91177308-0d34-0410-b5e6-96231b3b80d8
* [projects/test-suite] White space and long line fixes.Jack Carter2013-10-171-10/+14
| | | | | | | No functionality changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192863 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-c: Add LLVMDumpTypeAnders Waldenborg2013-10-161-0/+7
| | | | | | | | | | | | The C API currently allows to dump values (LLVMDumpValue), but a similar method for types was not exported. Patch by Peter Zotov Differential Revision: http://llvm-reviews.chandlerc.com/D1911 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192852 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64] Add support for NEON scalar negate instruction.Chad Rosier2013-10-161-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192843 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64] Add support for NEON scalar absolute value instruction.Chad Rosier2013-10-161-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192842 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow repeated registration again.Rafael Espindola2013-10-161-17/+0
| | | | | | | | | | | | | Our use of -fvisibility-inlines-hidden means we cannot check function pointers against non null values. Unfortunately, we also cannot assert that the callbacks are initialized only once. The problem is that lldb has multiple subsystems that need to call this and they don't have a unique initialization order. Thanks to Sean Callanan for reporting it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192835 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix MCDataAtom never calling remap when adding data.Rafael Espindola2013-10-161-1/+3
| | | | | | | | | | | | | | | | This patch fixes a small mistake in MCDataAtom::addData() where it doesn't ever call remap(): - if (Data.size() > Begin - End - 1) + if (Data.size() > End + 1 - Begin) remap(Begin, End + 1); This is currently not visible because of another bug is the disassembler, so the patch includes a unit test. Patch by Stephen Checkoway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192823 91177308-0d34-0410-b5e6-96231b3b80d8
* [llvm-c] Add LLVMPrintModuleToString.Anders Waldenborg2013-10-161-0/+8
| | | | | | | | | | | Like LLVMDumpModule but returns the string (that needs to be freed with LLVMDisposeMessage) instead of printing it to stderr. Differential Revision: http://llvm-reviews.chandlerc.com/D1941 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192821 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment.Chad Rosier2013-10-161-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192806 91177308-0d34-0410-b5e6-96231b3b80d8
* Assert on duplicate registration. Don't depend on function pointer equality.Rafael Espindola2013-10-161-62/+50
| | | | | | | | | | | | | | | | | | | | Before this patch we would assert when building llvm as multiple shared libraries (cmake's BUILD_SHARED_LIBS). The problem was the line if (T.AsmStreamerCtorFn == Target::createDefaultAsmStreamer) which returns false because of -fvisibility-inlines-hidden. It is easy to fix just this one case, but I decided to try to also make the registration more strict. It looks like the old logic for ignoring followup registration was just a temporary hack that outlived its usefulness. This patch converts the ifs to asserts, fixes the few cases that were registering twice and makes sure all the asserts compare with null. Thanks for Joerg for reporting the problem and reviewing the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192803 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64] Add support for NEON scalar signed saturating accumulated of unsignedChad Rosier2013-10-161-0/+5
| | | | | | value and unsigned saturating accumulate of signed value instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192800 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a 'deleteModule' method to the Linker class.Bill Wendling2013-10-161-0/+2
| | | | | | | | This deletes the Module ivar instead of having the LTO code generater do it. It also sets the pointer to 'NULL', so that if it's used again it will abort quickly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192778 91177308-0d34-0410-b5e6-96231b3b80d8
* TypeFinder: prefer iterative algorithm to keep stack usage low.Will Dietz2013-10-161-0/+8
| | | | | | | Introduce subtype_reverse_iterator to maintain the numbering assigned during the recursive type walk. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192770 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for metadata representing .ident directives.Rafael Espindola2013-10-161-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192764 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a MCAsmInfoELF class and factor some code into it.Rafael Espindola2013-10-161-0/+23
| | | | | | We had a MCAsmInfoCOFF, but no common class for all the ELF MCAsmInfos before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192760 91177308-0d34-0410-b5e6-96231b3b80d8
* Move .ident handling to MCStreamer.Rafael Espindola2013-10-163-3/+17
| | | | | | | | No functionality change, but exposes the API so that codegen can use it too. Patch by Katya Romanova. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192757 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding support for deregistering EH frames with MCJIT.Andrew Kaylor2013-10-162-0/+4
| | | | | | | | Patch by Yaron Keren git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192753 91177308-0d34-0410-b5e6-96231b3b80d8
* Support/FileSystem.h: Remove a trailing comma in enum file_magic::Impl.NAKAMURA Takumi2013-10-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192745 91177308-0d34-0410-b5e6-96231b3b80d8
* Path: Recognize Windows compiled resource file.Rui Ueyama2013-10-151-1/+2
| | | | | | | | | | | | | | Some background: One can pass compiled resource files (.res files) directly to the linker on Windows. If a resource file is given, the linker will run "cvtres" command in background to convert the resource file to a COFF file to link it. What I'm trying to do with this patch is to make the linker to recognize the resource file by file magic, so that it can run cvtres command. Differential Revision: http://llvm-reviews.chandlerc.com/D1943 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192742 91177308-0d34-0410-b5e6-96231b3b80d8
* Reformat.Eric Christopher2013-10-151-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192735 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Add AllTargetsBindings sublibrary" as it breaks cmake build on ↵Anders Waldenborg2013-10-151-11/+36
| | | | | | (atleast) windows and darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192697 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AllTargetsBindings sublibrary instead of having static inlines in the ↵Anders Waldenborg2013-10-151-36/+11
| | | | | | | | | | | | | | | llvm-c headers. This new library will be linked in when using the "all-targets" component and contains the LLVMInitializeAll* functions. This means that those functions will exist as real symbols in the shared library, and can therefore can be called from bindings that are using ffi the shared library. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192690 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove x86_sse42_crc32_64_8 intrinsic. It has no functional difference from ↵Craig Topper2013-10-151-3/+0
| | | | | | x86_sse42_crc32_32_8 and was not mapped to a clang builtin. I'm not even sure why this form of the instruction is even called out explicitly in the docs. Also add AutoUpgrade support to convert it into the other intrinsic with appropriate trunc and zext. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192672 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify formatting and sort these. No functionality changed.Chandler Carruth2013-10-151-14/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192668 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Rafael Espindola2013-10-141-21/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192642 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the ExecutionDepsFix pass to handle AVX instructions.Andrew Trick2013-10-141-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | This pass is needed to break false dependencies. Without it, unlucky register assignment can result in wild (5x) swings in performance. This pass was trying to handle AVX but not getting it right. AVX doesn't have partial register defs, it has unused register reads in which the high bits of a source operand are copied into the unused bits of the dest. Fixing this requires conservative liveness analysis. This is awkard because the pass already has its own pseudo-liveness. However, proper liveness is expensive, and we would like to use a generic utility to compute it. The fix only invokes liveness on-demand. It is rare to detect a case that needs undef-read dependence breaking, but when it happens, it can be needed many times within a very large block. I think the existing heuristic which uses a register window of 16 is too conservative for loop-carried false dependencies. If the loop is a reduction. The out-of-order engine may be able to execute several loop iterations in parallel. However, I'll leave this tuning exercise for next time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192635 91177308-0d34-0410-b5e6-96231b3b80d8
* LiveRegUnits: Use *MBB for consistency and convenience.Andrew Trick2013-10-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192634 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a SparseSet in LiveRegUnits.Andrew Trick2013-10-141-7/+13
| | | | | | | | | | Some clients may add block live ins and may track liveness over a large scope. This guarantees an efficient implementation in all cases with no memory allocation/deallocation, independent of the number of target registers. It could be slightly less convenient but is fine in the expected case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192622 91177308-0d34-0410-b5e6-96231b3b80d8
* Move LiveRegUnits implementation into .cpp. Comment and format.Andrew Trick2013-10-141-87/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192621 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove extra indentation in LiveRegUnits.Andrew Trick2013-10-141-112/+112
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192620 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert LiveRegUnits methods to the current convention (it's new code).Andrew Trick2013-10-141-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192619 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the now unused strong phi elimination pass.Rafael Espindola2013-10-142-9/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192604 91177308-0d34-0410-b5e6-96231b3b80d8
* [AArch64] Add support for NEON scalar integer compare instructions.Chad Rosier2013-10-141-0/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192596 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Don't assume incoming StringRef's are null terminated.Will Dietz2013-10-131-6/+6
| | | | | | | | | | This can happen when processing command line arguments, which are often stored as std::string's and later turned into StringRef's via std::string::data(). Unfortunately this is not guaranteed to return a null-terminated string until C++11, causing breakage on platforms that don't do this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192558 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing #include's to cctype when using isdigit/alpha/etc.Will Dietz2013-10-121-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192519 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding multiple object support to MCJIT EH frame handlingAndrew Kaylor2013-10-112-3/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192504 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce ad hoc liveness tracking utility: LiveRegUnitsMatthias Braun2013-10-111-0/+156
| | | | | | | Contains a set of live register (units) and code to move forward and backward in the schedule while updating the live set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192481 91177308-0d34-0410-b5e6-96231b3b80d8
* [DAGCombiner] Reapply load slicing (192471) with a test that explicitly set ↵Quentin Colombet2013-10-111-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sse4.2 support. This should fix the buildbots. Original commit message: [DAGCombiner] Slice a big load in two loads when the element are next to each other in memory and the target has paired load and performs post-isel loads combining. E.g., this optimization will transform something like this: a = load i64* addr b = trunc i64 a to i32 c = lshr i64 a, 32 d = trunc i64 c to i32 into: b = load i32* addr1 d = load i32* addr2 Where addr1 = addr2 +/- sizeof(i32), if the target supports paired load and performs post-isel loads combining. One should overload TargetLowering::hasPairedLoad to provide this information. The default is false. <rdar://problem/14477220> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192476 91177308-0d34-0410-b5e6-96231b3b80d8
* [DAGCombiner] Revert load slicing (r192471), until I figure out why it fails ↵Quentin Colombet2013-10-111-29/+0
| | | | | | on ubuntu. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192474 91177308-0d34-0410-b5e6-96231b3b80d8
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