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2011-02-18Use VirtRegMap's Virt2SplitMap to keep track of the original live range ↵Jakob Stoklund Olesen
before splitting. All new virtual registers created for spilling or splitting point back to their original. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125980 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18add a way to disable all builtins, wire it up to opt's ↵Chris Lattner
-disable-simplifylibcalls flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125978 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Make loop-idiom use TargetLibraryInfo to determine whether it is allowedChris Lattner
to hack on memset, memcpy etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125974 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18add memset and memcpy, though they are always available for now.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125973 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18rearrange some comments, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125972 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Have opt set up a specific TargetLibraryInfo for modulesChris Lattner
with a triple. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125970 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18CMake: updated list of tblgen source files.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125969 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Move library stuff out of the toplevel CMakeLists.txt file.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125968 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Add VirtRegMap::rewrite() and use it in the new register allocators.Jakob Stoklund Olesen
The rewriter works almost identically to -rewriter=trivial, except it also eliminates any identity copies. This makes the new register allocators independent of VirtRegRewriter.cpp which will be going away at the same time as RegAllocLinearScan. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Add FixedLenDecoderEmitter, the skeleton of a new disassembler emitter for ↵Owen Anderson
fixed-length instruction encodings. A major part of its (eventual) goal is to support a much cleaner separation between disassembly callbacks provided by the target and the disassembler emitter itself, i.e. not requiring hardcoding of knowledge in tblgen like the existing disassembly emitters do. The hope is that some day this will allow us to replace the existing non-Thumb ARM disassembler and remove some of the hacks the old one introduced to tblgen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125966 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18introduce a new TargetLibraryInfo pass, which transformations can use toChris Lattner
query about available library functions. For now this just has memset_pattern16, which exists on darwin, but it can be extended for a bunch of other things in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125965 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Revert r125956, which broke the build if you _don't_ have lldb checked out.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125964 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Reapply r114997 now that the buildbots have been updated.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125960 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18This patch lets LLDB build as an LLVM subproject. LLDB is not built inStephen Wilson
parallel with the rest of the tools directory as it depends on Clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125956 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Fix style and a typoBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125949 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Add assembly parsing support for "msr" and also fix its encoding. Also addBruno Cardoso Lopes
testcases for the disassembler to make sure it still works for "msr". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125948 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18improve support for OpenBSD, patch by Amit Kulkarni!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Expose getTypeName to the C API. Patch by Patrick Walton.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125845 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Add some transforms of the kind X-Y>X -> 0>Y which are valid when there is noDuncan Sands
overflow. These subsume some existing equality transforms, so zap those. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125843 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18The objectsize intrinsic doesn't access any memory.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18add a poor division by constant case.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125832 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18add a testcase for r125827Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18prevent jump threading from merging blocks when their address isChris Lattner
taken (and used!). This prevents merging the blocks (invalidating the block addresses) in a case like this: #define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) void foo() { printf("%p\n", _THIS_IP_); printf("%p\n", _THIS_IP_); printf("%p\n", _THIS_IP_); } which fixes PR4151. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18hoist GlobalValue::removeDeadConstantUsers up to being a method on Constant.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Don't unroll loops whose header block's address is taken.Chris Lattner
This is part of a futile attempt to not "break" bizzaro code like this: l1: printf("l1: %p\n", &&l1); ++x; if( x < 3 ) goto l1; Previously we'd fold &&l1 to 1, which is fine per our semantics but not helpful to the user. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125827 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Make -disable-simplify-libcalls work with -std-compile-optsPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125824 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Recognize monitor/mwait with explicit register argumentsJoerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125805 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Check the errorcode.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125804 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Trim debugging output.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125802 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Recognize leavel and leaveq aliases for leave.Joerg Sonnenberger
Validate encoding of leave in 64bit mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125795 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Do not lose debug info of an inlined function argument even if the argument ↵Devang Patel
is only used through GEPs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Check that MnemonicAlias doesn't map back to the same string.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125792 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17have instcombine preserve nsw/nuw/exact when sinkingChris Lattner
common operations through a phi. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125790 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Add basic register allocator statistics.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125789 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17fix typoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125787 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17New library: LLVMX86Utils.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125786 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17fix instcombine merging GEPs through a PHI to only make theChris Lattner
result inbounds if all of the inputs are inbounds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Enhance constant folding of bitcast operations on vectors of floats.Nadav Rotem
Add getAllOnesValue of FP numbers to Constants and APFloat. Add more tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17add is always integer, thanks to Frits for noticing this.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125774 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17[AVX] Recorganize X86ShuffleDecode into its own libraryDavid Greene
(LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Split local live ranges.Jakob Stoklund Olesen
A local live range is live in a single basic block. If such a range fails to allocate, try to find a sub-range that would get a larger spill weight than its interference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125764 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17The labyrinthine X86 backend no longer appears to requireDan Gohman
these patterns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125759 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Fix wrong logic in promotion of signed mul-with-overflow (I pointed this out atDuncan Sands
the time but presumably my email got lost). Examples where the previous logic got it wrong: (1) a signed i8 multiply of 64 by 2 overflows, but the high part is zero; (2) a signed i8 multiple of -128 by 2 overflows, but the high part is all ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Triple::MinGW64 is deprecated and removed. We can use Triple::MinGW32 generally.NAKAMURA Takumi
No one uses *-mingw64. mingw-w64 is represented as {i686|x86_64}-w64-mingw32. In llvm side, i686 and x64 can be treated as similar way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Fix whitespace.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125746 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17This has been implemented.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Transform "A + B >= A + C" into "B >= C" if the adds do not wrap. Likewise ↵Duncan Sands
for some variations (some of these were already present so I unified the code). Spotted by my auto-simplifier as occurring a lot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Switch to SmallVector in SimpleRegisterCoalescing for a 3.5% speedup on 403.gcc.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125728 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Adjust indenting of arguments.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125727 91177308-0d34-0410-b5e6-96231b3b80d8