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2011-07-25Move some ELF directives into ELF asm parser.Jim Grosbach
The .local, .hidden, .internal, and .protected are not legal for all supported file formats (in particular, they're invalid for MachO). Move the parsing for them into the ELF assembly parser since that's the format they're for. Similarly, .weak is used by COFF and ELF, but not MachO, so move the parsing to the COFF and ELF asm parsers. Previously, using any of these directives on Darwin would result in an assertion failure in the parser; now we get a diagnostic as we should. rdar://9827089 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135921 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Builds llvmc and its examples with CMake.Oscar Fuentes
Patch by arrowdodger! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135919 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Fixes VS support for llvmc mcc16 llvmc example.Oscar Fuentes
Patch by arrowdodger! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135918 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Tidy up. 80 columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135917 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Add uwtable to the langref.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135913 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Add an RS_Split2 stage used for loop prevention.Jakob Stoklund Olesen
This mechanism already exists, but the RS_Split2 stage makes it clearer. When live range splitting creates ranges that may not be making progress, they are marked RS_Split2 instead of RS_New. These ranges may be split again, but only in a way that can be proven to make progress. For local ranges, that means they must be split into ranges used by strictly fewer instructions. For global ranges, region splitting is bypassed and the RS_Split2 ranges go straight to per-block splitting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135912 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Rename live range stages to better reflect how they are used.Jakob Stoklund Olesen
The stage is used to control where a live range is going, not where it is coming from. Live ranges created by splitting will usually be marked RS_New, but some are marked RS_Spill to avoid wasting time trying to split them again. The old RS_Global and RS_Local stages are merged - they are really the same thing for local and global live ranges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Shorten some expressions by using ArrayRef::slice().Frits van Bommel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135910 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25CMake: generalize the system that creates custom targets forOscar Fuentes
tablegenning to all libraries and executables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135908 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Remove uses of std::vector from TypeBuilder.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135906 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Use ArrayRef in the (protected) constructors of ConstantArray, ↵Jay Foad
ConstantStruct and ConstantVector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135905 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Convert GetElementPtrInst to use ArrayRef.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135904 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24switch Triple to take twines instead of stringrefs.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135889 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24Add Twine support for characters, and switch twine to use a union internallyChris Lattner
to eliminate some casting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135888 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24Never extend live ranges for <undef> uses.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135886 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24Correctly handle <undef> tied uses when rewriting after a split.Jakob Stoklund Olesen
This fixes PR10463. A two-address instruction with an <undef> use operand was incorrectly rewritten so the def and use no longer used the same register, violating the tie constraint. Fix this by always rewriting <undef> operands with the register a def operand would use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135885 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24Omit explicit length here, now that I've had a chance to test this with gcc.Frits van Bommel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-24Set PPCII::MO_DARWIN_STUB only on MacOSX < 10.5.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135866 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23clarify that opaque is actually a struct type, PR10430Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135861 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23how about that, StringRef doesn't allow any mutation, thanks toChris Lattner
Frits for straightening me out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Add RAGreedy::calcCompactRegion.Jakob Stoklund Olesen
This method computes the edge bundles that should be live when splitting around a compact region. This is independent of interference. The function returns false if the live range was already a compact region, or the compact region doesn't have any live bundles - it would be the same as splitting around basic blocks. Compact regions are computed using the normal spill placement code. We pretend there is interference in all live-through blocks that don't use the live range. This removes all edges from the Hopfield network used for spill placement, so it converges instantly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135847 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Fix bug in SplitEditor::splitLiveThroughBlock when switching registers.Jakob Stoklund Olesen
If there is no interference and no last split point, we cannot enterIntvBefore(Stop) - that function needs a real instruction. Use enterIntvAtEnd instead for that very easy case. This code doesn't currently run, it is needed by multi-way splitting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135846 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Prepare RAGreedy::growRegion for compact regions.Jakob Stoklund Olesen
A split candidate can have a null PhysReg which means that it doesn't map to a real interference pattern. Instead, pretend that all through blocks have interference. This makes it possible to generate compact regions where the live range doesn't go through blocks that don't use it. The live range will still be live between directly connected blocks with uses. Splitting around a compact region tends to produce a live range with a high spill weight, so it may evict a less dense live range. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135845 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Add a simple method for marking blocks with interference in and out.Jakob Stoklund Olesen
This method matches addLinks - All the listed blocks are considered to have interference, so they add a negative bias to their bundles. This could also be done by addConstraints, but that requires building a separate BlockConstraint array. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Allow null interference cursors to be queried.Jakob Stoklund Olesen
They always report 'no interference'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135843 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Fix a silly off by one.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23We always bounds check the bit set, there is no need to emit zero bytes at ↵Benjamin Kramer
the end. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135841 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Add more constness.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135838 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23ARMMCTargetDesc.h: Fixup to add DataTypes.h, or uint32_t would be unavailable.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135837 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Turn the DenseSet in MCRegisterClass into a tblgenerated bit field. This ↵Benjamin Kramer
should be faster and smaller. Goodbye static ctors and dtors! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Give TargetRegisterClass a pointer to the MCRegisterClass and use it to ↵Benjamin Kramer
access its data. This makes TargetRegisterClass slightly slower. Next step will be making contains faster. Eventually TargetRegisterClass will be killed entirely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where ↵Evan Cheng
they belong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23CMake: Fix LLVM_NATIVE_TARGETMC in config.h.cmake.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135832 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23config.h.cmake: Reorder along config.h.in.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Move trip count discovery outside of the generic LoopUnroll helper. ThisAndrew Trick
removes its dependence on canonical induction variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23createXXXMCCodeGenInfo should be static.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Sink ARM mc routines into MCTargetDesc.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22ARM SSAT instruction 5-bit immediate handling.Jim Grosbach
The immediate is in the range 1-32, but is encoded as 0-31 in a 5-bit bitfield. Update the representation such that we store the operand as 0-31, allowing us to remove the encoder method and the special case handling in the disassembler. Update the assembly parser and the instruction printer accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135823 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Move the last uses of RetainFunc etc. over to using getRetainCallee() etc.Dan Gohman
so that a declaration for objc_retain is created when needed if it doesn't already exist. rdar://9825114. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Teach cmake configured headers about LLVM_NATIVE_TARGETMCOscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135820 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Add FIXMEJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22ARM encoding and assembly parsing tests for SMULWB, SMULWT, SMUSD and SMUSDX.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135818 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22ARM assembly parsing and encoding updates.Jim Grosbach
Tests for SMULBB, SMLALBT, SMLALTB, SMLALTT, and SMULL. Fix parsing of SMULLS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135817 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Use the enum value for RegClassIDs.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135816 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Combine all MC initialization routines into one. e.g. InitializeX86MCAsmInfo,Evan Cheng
InitializeX86MCInstrInfo, etc. are combined into InitializeX86TargetMC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135812 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22add section to ToCChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22ARM assembly parsing and encoding tests.Jim Grosbach
Add tests for SMLSD, SMLSDX, SMLSLD, SMLSLDX, SMMLA, SMMLAR, SMMLS, SMMLSR, SMMUL, SMMULR, SMUAD and SMUADX. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135810 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22write the long-overdue strings section of the data structure guide.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Emit the __compact_unwind section first. If there are any frames which weren'tBill Wendling
emitted, emit them next as CIE/FDEs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135807 91177308-0d34-0410-b5e6-96231b3b80d8
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