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2011-02-22Guard against de-referencing MBB.end().Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126192 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22available_externally (hidden or not) GVs are always accessed via stubs. ↵Evan Cheng
rdar://9027648. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126191 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Only use blx for external function calls on thumb, these could be fixedEric Christopher
up by the dynamic linker, but it's better to use the correct instruction to begin with. Fixes rdar://9011034 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126176 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Recognize loopz and loopnz as aliases for loope and loopne.Joerg Sonnenberger
From Dimitry Andric. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126168 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Implement xgetbv and xsetbv.Rafael Espindola
Patch by Jai Menon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126165 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Skipping over debugvalue instructions to determine whether the split spot is ↵Evan Cheng
in a IT block. rdar://9030770 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Revert r124611 - "Keep track of incoming argument's location while emitting ↵Devang Patel
LiveIns." In other words, do not keep track of argument's location. The debugger (gdb) is not prepared to see line table entries for arguments. For the debugger, "second" line table entry marks beginning of function body. This requires some coordination with debugger to get this working. - The debugger needs to be aware of prolog_end attribute attached with line table entries. - The compiler needs to accurately mark prolog_end in line table entries (at -O0 and at -O1+) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Fixed a bug in the X86 disassembler where a member of theSean Callanan
X86 instruction decode structure was being interpreted as being in units of bits, although it is actually stored in units of bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126147 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Add XCore intrinsics for various instructions on ports.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21The stack should be 16 byte aligned on 32 bit solaris. Patch by Yuri.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126130 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21a serious "compare CSE" issue that is nontrivial to get right,Chris Lattner
but which is responsible for us doing really bad things to 256.bzip2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126126 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Target/X86/X86FastISel: [PR6275] Fix Win32's dllimport function with fastisel.NAKAMURA Takumi
"dllimport" function must not be GlobalVariable, but Function. It is enough to check with GlobalValue. test/CodeGen/X86/dll-linkage.ll is updated to check llc -O0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Generate correct Sparc32 ABI compliant code for functions that return a struct.Venkatraman Govindaraju
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21add a missed loop deletion case.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21add an idiom that loop idiom could theoretically catch.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126101 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21A lo/hi mul has higher latency than an imul r,ri, e.g. 5 cycles compared to 3Cameron Zwarich
on Core 2 and Nehalem, so the code we generate is better than GCC's here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21The signed version of our "magic number" computation for the integer ↵Cameron Zwarich
approximation of a constant had a minor typo introduced when copying it from the book, which caused it to favor negative approximations over positive approximations in many cases. Positive approximations require fewer operations beyond the multiplication. In the case of division by 3, we still generate code that is a single instruction larger than GCC's code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20If both operands are loads from stores in memory we can't use movlpd/movlpsEric Christopher
since one needs to be a register operand. Just use movss instead of forcing an operand into a register. Fixes PR9239 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126072 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20Use explicit add_subdirectory's for LLVM target sublibraries insteadOscar Fuentes
of testing for its presence at cmake time. This way the build automatically regenerates the makefiles when a svn update brings in a new sublibrary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Minor x86 README updates.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19implement PR9264: disambiguating 'bt mem, imm' as a btl.Chris Lattner
This is reasonable to do since all bt-mem forms do the same thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126047 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Fix typos.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126018 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Avoid dangling else warnings.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126004 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
2011-02-18Move 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
2011-02-18introduce 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
2011-02-18Fix 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
2011-02-18add 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
2011-02-18Recognize monitor/mwait with explicit register argumentsJoerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125805 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Recognize 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
2011-02-17[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
2011-02-17The 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
2011-02-17Triple::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
2011-02-17add some notes on compares + binops. Remove redundant entries.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125702 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Add a few missed xforms from GCC PR14753Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125681 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Swap VT and DebugLoc operands of getExtLoad() for consistency withStuart Hastings
other getNode() methods. Radar 9002173. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125665 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Remove outdated README entry.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125660 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Remove outdated README entry.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125659 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Update README entry.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125658 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Add support for pushsection and popsection. Patch by Joerg Sonnenberger.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Some single precision VFP instructions may be executed on NEON pipeline, but ↵Evan Cheng
not double precision ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125624 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Teach ARMLoadStoreOptimizer to remove kill flags from merged instructions as ↵Jakob Stoklund Olesen
well. This is necessary to avoid a crash in certain tangled situations where a kill flag is first correctly moved to a merged instruction, and then needs to be moved again: STR %R0, a... STR %R0<kill>, b... First becomes: STR %R0, b... STM a, %R0<kill>, ... and then: STM a, %R0, ... STM b, %R0<kill>, ... We can now remove the kill flag from the merged STM when needed. 8960050. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125591 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Spelling fix: consequtive -> consecutive.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125563 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Remove unused bitvectors that record ARM callee-saved registers.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125534 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14A fail to match coprocessor number and register number must fail instead of ↵Bruno Cardoso Lopes
assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Fix encoding and add parsing support for the arm/thumb CPS instruction:Bruno Cardoso Lopes
- Add custom operand matching for imod and iflags. - Rename SplitMnemonicAndCC to SplitMnemonic since it splits more than CC from mnemonic. - While adding ".w" as an operand, don't change "Head" to avoid passing the wrong mnemonic to ParseOperand. - Add asm parser tests. - Add disassembler tests just to make sure it can catch all cps versions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125489 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-13Enhance ComputeMaskedBits to know that aligned frameindexesChris Lattner
have their low bits set to zero. This allows us to optimize out explicit stack alignment code like in stack-align.ll:test4 when it is redundant. Doing this causes the code generator to start turning FI+cst into FI|cst all over the place, which is general goodness (that is the canonical form) except that various pieces of the code generator don't handle OR aggressively. Fix this by introducing a new SelectionDAG::isBaseWithConstantOffset predicate, and using it in places that are looking for ADD(X,CST). The ARM backend in particular was missing a lot of addressing mode folding opportunities around OR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125470 91177308-0d34-0410-b5e6-96231b3b80d8
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