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2011-01-29Implementation of path profiling.Andrew Trick
Modified patch by Adam Preuss. This builds on the existing framework for block tracing, edge profiling and optimal edge profiling. See -help-hidden for new flags. For documentation, see the technical report "Implementation of Path Profiling..." in llvm.org/pubs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Most browsers eliminate whitespace between anchor tags. Force whitespace withNick Lewycky
  so that the code reads properly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124514 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Error on .code16 instead of producing wrong (32bit) code.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124498 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28This dyn_cast should be a cast. Pointed out by Frits van Bommel.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Thread divisions over selects and phis. This doesn't fire much and has ↵Duncan Sands
basically zero effect on the testsuite (it improves two Ada testcases). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124496 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28PR9030: Fix disassembly of ARM "mov pc, lr" instruction.Bob Wilson
Patch by Jyun-Yan You. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124492 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28My auto-simplifier noticed that ((X/Y)*Y)/Y occurs several times in SPECDuncan Sands
benchmarks, and that it can be simplified to X/Y. (In general you can only simplify (Z*Y)/Y to Z if the multiplication did not overflow; if Z has the form "X/Y" then this is the case). This patch implements that transform and moves some Div logic out of instcombine and into InstructionSimplify. Unfortunately instcombine gets in the way somewhat, since it likes to change (X/Y)*Y into X-(X rem Y), so I had to teach instcombine about this too. Finally, thanks to the NSW/NUW flags, sometimes we know directly that "Z*Y" does not overflow, because the flag says so, so I added that logic too. This eliminates a bunch of divisions and subtractions in 447.dealII, and has good effects on some other benchmarks too. It seems to have quite an effect on tramp3d-v4 but it's hard to say if it's good or bad because inlining decisions changed, resulting in massive changes all over. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124487 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Fix libffi usage when it is on a custom path.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124486 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Add support for parsing .floatRoman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124485 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Rename functions to follow coding standard. Also rejiggers comments. NoNick Lewycky
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124482 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Add a doxygen comment for this class.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124480 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Reorder for readability. (Chris, is this what you meant?)Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Revert r124462. There are a few big regressions that I need to fix first.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Reduce the number of functions we look at in the first pass, and preallocateNick Lewycky
the function equality set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124475 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Clean up the tests a little, make sure we match an instruction in the rightNick Lewycky
test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124473 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Fix build with stdcxx by using llvm::next. Patch by Joerg Sonnenberger!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Add a triple.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124471 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Add missing include for ptrdiff_t. Patch by Joerg Sonnenberger!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Fold select + select where both selects are on the same condition.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Print the visibility of declarations.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28PR8951: Support for .equiv in integrated assembler, patch by Jörg Sonnenberger!Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124467 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28- Stop simplifycfg from duplicating "ret" instructions into unconditionalEvan Cheng
branches. PR8575, rdar://5134905, rdar://8911460. - Allow codegen tail duplication to dup small return blocks after register allocation is done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124462 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Fix PLD encoding.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124458 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Changed llvm-mc arm target to give an error if .syntax divided is used. SinceKevin Enderby
only .syntax unified is supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124454 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Fix a comment typo.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124450 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Use the paths to libffi's header and library even when no customOscar Fuentes
location was stated with FFI_INCLUDE_DIR/FFI_LIBRARY_DIR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124449 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27[AVX] Clean up the code to configure target lowering for AVX. SpecifyDavid Greene
how to lower more/new operations. This is a prerequisite for adding additional AVX lowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124447 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Remove a temporary workaround for a lencod miscompile. Depends on the fix in ↵Andrew Trick
r124442. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124443 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27VirtRegRewriter fix: update kill flags, which are used by the scavenger.Andrew Trick
rdar://problem/8893967: JM/lencod miscompile at -arch armv7 -mthumb -O3 Added ResurrectKill to remove kill flags after we decide to reused a physical register. And (hopefully) ensure that we call it in all the right places. Sorry, I'm not checking in a unit test given that it's a miscompile I can't reproduce easily with a toy example. Failures in the rewriter depend on a series of heuristic decisions maked during one of the many upstream phases in codegen. This case would require coercing regalloc to generate a couple of rematerialzations in a way that causes the scavenger to reuse the same register at just the wrong point. The general way to test this is to implement kill flags verification. Then we could have a simple, robust compile-only unit test. That would be worth doing if the whole pass was not about to disappear. At this point we focus verification work on the next generation of regalloc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124442 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Clang: separate the access-control diagnostics from other diagnostics that ↵Douglas Gregor
do not have SFINAE behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124440 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Unbreak the build.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124426 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Expound upon this comparison!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Use dyn_cast instead of isa+cast.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Don't show -pedantic, -W and -Wall on the output ofOscar Fuentes
llvm-config --cflags --cxxflags --cppflags We shouldn't impose those flags on people who use llvm-config for building their own projects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Speculatively revert r124380.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124397 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27While legalizing SDValues do not drop SDDbgValues, trasfer them to new legal ↵Devang Patel
nodes. Take 2. This includes fix for dragonegg crash. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Add support for specifying register name in cfi-register/offset/defRoman Divacky
as well as register number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Introduce virtual ParseRegister method in TargetAsmParser.Roman Divacky
Create override of this method in X86/ARM/MBlaze. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Fix indentation.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Add DenseSet::resize for API parity with DenseMap::resize.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124370 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Fix surprising missed optimization in mergefunc where we forgot to considerNick Lewycky
that relationships like "i8* null" is equivalent to "i32* null". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Don't infinitely recurse! Patch by Marius Wachtler!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Avoid modifying the OneClassForEachPhysReg map while iterating over it.Bob Wilson
Linear scan regalloc is currently assuming that any register aliased with a member of a regclass must also be in at least one regclass. That is not always true. For example, for X86, RIP is in a regclass but IP is not. If you're unlucky, this can cause a crash by invalidating the iterator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Add a testcase for my last checkin.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124358 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Use the incoming VT not the VT of where we're trying to store to determineEric Christopher
if we can store a value. Also, the exclusion is or, not and. Fixes rdar://8920247. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124357 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27lib/Target/X86/X86ISelDAGToDAG.cpp: __main should be WINCALL64 on Win64.NAKAMURA Takumi
CALL64 marks %xmm* as dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124354 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Try harder to not have unused variables.Matt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Opt-mode -Wunused-variable cleanupMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Reapply 124301Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Initialize variable to get rid of clang warning.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124331 91177308-0d34-0410-b5e6-96231b3b80d8
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