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* Add 'empty' query methods to the builder and use them in the verifier.Bill Wendling2013-02-102-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174832 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for updating LiveIntervals to PHIElimination. If LiveIntervals areCameron Zwarich2013-02-101-29/+142
| | | | | | | | | | | | | | | | | | | present, it currently verifies them with the MachineVerifier, and this passed all of the test cases in 'make check' (when accounting for existing verifier errors). There were some assertion failures in the two-address pass, but they also happened on code without phis and look like they are caused by different kill flags from LiveIntervals. The only part that doesn't work is the critical edge splitting heuristic, because there isn't currently an efficient way to update LiveIntervals after splitting an edge. I'll probably start by implementing the slow fallback and test that it works before tackling the fast path for single-block ranges. The existing code that updates LiveVariables is fairly slow as it is. There isn't a command-line option for enabling this; instead, just edit PHIElimination.cpp to require LiveIntervals. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174831 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo.Cameron Zwarich2013-02-101-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174830 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ancient references to 'atomic' phis in PHIElimination that don't reallyCameron Zwarich2013-02-101-12/+8
| | | | | | make sense anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174829 91177308-0d34-0410-b5e6-96231b3b80d8
* Make LiveVariables an instance variable of PHIElimination.Cameron Zwarich2013-02-101-11/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174828 91177308-0d34-0410-b5e6-96231b3b80d8
* ok, ok, stop fighting type punning warnings by just using a union.Chris Lattner2013-02-101-6/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174827 91177308-0d34-0410-b5e6-96231b3b80d8
* hopefully "really" fix a type punning warning by defining the buffer asChris Lattner2013-02-101-3/+4
| | | | | | | type char, which can't have TBAA tags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174826 91177308-0d34-0410-b5e6-96231b3b80d8
* attempt to defeat a gcc warning that is breaking a -Werror buildbot.Chris Lattner2013-02-101-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174825 91177308-0d34-0410-b5e6-96231b3b80d8
* Add accessor for the LLVMContext.Bill Wendling2013-02-102-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174824 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded "TargetMachine.h" #includes.Jakub Staszak2013-02-096-6/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174817 91177308-0d34-0410-b5e6-96231b3b80d8
* TEMPORARY SYNTAX CHANGE!Bill Wendling2013-02-091-4/+7
| | | | | | | | | | | | | | | | | | | The original syntax for the attribute groups was ambiguous. For example: declare void @foo() #1 #0 = attributes { noinline } The '#0' would be parsed as an attribute reference for '@foo' and not as a top-level entity. In order to continue forward while waiting for a decision on what the correct syntax is, I'm changing it to this instead: declare void @foo() #1 attributes #0 = { noinline } Repeat: This is TEMPORARY until we decide what the correct syntax should be. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174813 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a DenseMapInfo class for the AttributeSet.Bill Wendling2013-02-091-13/+35
| | | | | | | We are going to place the AttributeSet into a DenseMap during assembly writing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174812 91177308-0d34-0410-b5e6-96231b3b80d8
* [NVPTX] Make address space errors more explicit (llvm_unreachable -> ↵Justin Holewinski2013-02-091-1/+2
| | | | | | report_fatal_error) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174808 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify code.Jakub Staszak2013-02-091-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174807 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #includes.Jakub Staszak2013-02-092-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174806 91177308-0d34-0410-b5e6-96231b3b80d8
* This is the correct version of r174802.Chris Lattner2013-02-091-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174804 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a nasty off-by one error that only manifests with 64-bit word size (which isChris Lattner2013-02-091-1/+1
| | | | | | | not enabled yet). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174803 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the underlying problem that was causing read(0) to be called: sometimes theChris Lattner2013-02-092-5/+16
| | | | | | | | | | | | | | | | | | bitcode writer would generate abbrev records saying that the abbrev should be filled with fixed zero-bit bitfields (this happens in the .bc writer when the number of types used in a module is exactly one, since log2(1) == 0). In this case, just handle it as a literal zero. We can't "just fix" the writer without breaking compatibility with existing bc files, so have the abbrev reader do the substitution. Strengthen the assert in read to reject reads of zero bits so we catch such crimes in the future, and remove the special case designed to handle this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174801 91177308-0d34-0410-b5e6-96231b3b80d8
* recommit r173072 (preparing bitstream reader to read a machine word at a time,Chris Lattner2013-02-091-21/+51
| | | | | | | | | | | | instead of always 32-bits at a time) with two changes: 1. Make Read(0) always return zero without affecting the state of our cursor. 2. Hack word_t to always be 32 bits, as staging. These two caveats will change shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174800 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing spaces.Jakub Staszak2013-02-091-37/+37
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174791 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #includes.Jakub Staszak2013-02-091-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174790 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR IVChain improvement.Andrew Trick2013-02-093-21/+107
| | | | | | | | | Handle chains in which the same offset is used for both loads and stores to the same array. Fixes rdar://11410078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174789 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove #includes from the commonly used LoopInfo.h.Jakub Staszak2013-02-095-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174786 91177308-0d34-0410-b5e6-96231b3b80d8
* Dwarf: do not use line_table_start in at_stmt_list since we do not always emit Manman Ren2013-02-092-2/+5
| | | | | | | line table entries in assembly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174785 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the old liveness algorithm.Jakob Stoklund Olesen2013-02-092-333/+5
| | | | | | This is part of the plan to delete LiveVariables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174783 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable *BasicBlockPass::createPrinterPass()Sergei Larin2013-02-086-2/+46
| | | | | | | | Enables raw_ostream I/O for BasicBlockPass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174776 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn on -new-live-intervals by default.Jakob Stoklund Olesen2013-02-081-3/+3
| | | | | | | | This uses a liveness algorithm that does not depend on data from the LiveVariables analysis, it is the first step towards removing LiveVariables completely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174774 91177308-0d34-0410-b5e6-96231b3b80d8
* CMake: Use check_symbol_exists instead of check_cxx_symbol_exists.Jordan Rose2013-02-081-7/+6
| | | | | | | | | | | check_cxx_symbol_exists requires CMake 2.8.6, so even though I recommended it to Owen it's probably better to stay away for now. This check is not technically correct because we're checking <math.h> but then using <cmath> in the actual code, but if we run into problems we can do the same sort of dance as isinf() and isnan() where we check /both/ headers and then write a wrapper header around them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174773 91177308-0d34-0410-b5e6-96231b3b80d8
* configure: when performing a compiler feature test for a -Wno-foo flag, attemptRichard Smith2013-02-082-14/+10
| | | | | | | | | | to use -Wfoo instead of -Wno-foo. This works around a bug in some versions of gcc, where it will silently accept an unknown -Wno-foo option, but will generate an error for a compile which uses -Wno-foo if that compile also triggers any warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174770 91177308-0d34-0410-b5e6-96231b3b80d8
* ReleaseNotes: Add section for R600 backendTom Stellard2013-02-081-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174764 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Dump the function name when TargetLowering::LowerCall() failsTom Stellard2013-02-081-0/+5
| | | | | | | | Also output a more useful error message. NOTE: This is a candidate for the Mesa stable branch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174763 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: rework flow creation in the structurizer v2Tom Stellard2013-02-081-177/+195
| | | | | | | | | | | | | This fixes a couple of bugs and incorrect assumptions, in total four more piglit tests now pass. v2: fix small bug in the dominator updating Patch by: Christian König Signed-off-by: Christian König <christian.koenig@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174762 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: fix loop analyses in the structurizerTom Stellard2013-02-081-113/+183
| | | | | | | | | | | Patch by: Christian König Intersecting loop handling was wrong. Signed-off-by: Christian König <christian.koenig@amd.com> Tested-by: Michel Dänzer <michel.daenzer@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174761 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: fix PHI value adding in the structurizerTom Stellard2013-02-081-65/+81
| | | | | | | | | | | Otherwise we sometimes produce invalid code. Patch by: Christian König Signed-off-by: Christian König <christian.koenig@amd.com> Tested-by: Michel Dänzer <michel.daenzer@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174760 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor cleanup.Dan Gohman2013-02-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174756 91177308-0d34-0410-b5e6-96231b3b80d8
* [docs] Tweaks for clarity, readability, and correctness.Sean Silva2013-02-081-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174749 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Add LLVMContext::emitWarning methods and use them. ↵Bob Wilson2013-02-088-75/+31
| | | | | | | | | | | | | <rdar://problem/12867368>" This reverts r171041. This was a nice idea that didn't work out well. Clang warnings need to be associated with warning groups so that they can be selectively disabled, promoted to errors, etc. This simplistic patch didn't allow for that. Enhancing it to provide some way for the backend to specify a front-end warning type seems like overkill for the few uses of this, at least for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174748 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the 16 bit version of addiu. To the assembler, the 16 and 32 bit are theReed Kotler2013-02-083-0/+51
| | | | | | | | | | | | same so we put in the comment field an indicator when we think we are emitting the 16 bit version. For the direct object emitter, the difference is important as well as for other passes which need an accurate count of program size. There will be other similar putbacks to this for various instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174747 91177308-0d34-0410-b5e6-96231b3b80d8
* DAGCombiner: Constant folding around pre-increment loads/storesHal Finkel2013-02-082-0/+136
| | | | | | | | | | | Previously, even when a pre-increment load or store was generated, we often needed to keep a copy of the original base register for use with other offsets. If all of these offsets are constants (including the offset which was combined into the addressing mode), then this is clearly unnecessary. This change adjusts these other offsets to use the new incremented address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174746 91177308-0d34-0410-b5e6-96231b3b80d8
* BBVectorize: Use TTI->getAddressComputationCostHal Finkel2013-02-081-0/+5
| | | | | | | | | | | | | This is a follow-up to the cost-model change in r174713 which splits the cost of a memory operation between the address computation and the actual memory access. In r174713, this cost is always added to the memory operation cost, and so BBVectorize will do the same. Currently, this new cost function is used only by ARM, and I don't have any ARM test cases for BBVectorize. Assistance in generating some good ARM test cases for BBVectorize would be greatly appreciated! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174743 91177308-0d34-0410-b5e6-96231b3b80d8
* More modifications to PowerPC doc linksBill Schmidt2013-02-081-9/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174742 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 172027 and 174336. Remove diagnostics about over-aligned stack objects.Bob Wilson2013-02-086-70/+24
| | | | | | | | | | | | Aside from the question of whether we report a warning or an error when we can't satisfy a requested stack object alignment, the current implementation of this is not good. We're not providing any source location in the diagnostics and the current warning is not connected to any warning group so you can't control it. We could improve the source location somewhat, but we can do a much better job if this check is implemented in the front-end, so let's do that instead. <rdar://problem/13127907> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174741 91177308-0d34-0410-b5e6-96231b3b80d8
* Update PowerPC links in CompilerWriterInfo.rstHal Finkel2013-02-081-7/+7
| | | | | | | | | | This updates the current references to links that work for me. In the future, we should update the list of references itself to provide information on newer architecture variants. Thanks to Sean Silva for pointing out that the current links were broken! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174739 91177308-0d34-0410-b5e6-96231b3b80d8
* Refine fix to bug 15041.Bill Schmidt2013-02-082-18/+33
| | | | | | | | | | | Thanks to help from Nadav and Hal, I have a more reasonable (and even correct!) approach. This specifically penalizes the insertelement and extractelement operations for the performance hit that will occur on PowerPC processors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174725 91177308-0d34-0410-b5e6-96231b3b80d8
* [SimplifyLibCalls] Library call simplification doen't work if the call site Chad Rosier2013-02-082-1/+55
| | | | | | | | isn't using the default calling convention. However, if the transformation is from a call to inline IR, then the calling convention doesn't matter. rdar://13157990 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174724 91177308-0d34-0410-b5e6-96231b3b80d8
* Typos.Jakob Stoklund Olesen2013-02-081-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174723 91177308-0d34-0410-b5e6-96231b3b80d8
* The patch to fix some issues in r174543 fixed the lines failing the test, ↵David Tweed2013-02-081-3/+3
| | | | | | | | | | but missed a couple of lines which weren't being explicitly looked at and were printing incorrect results. These values clearly must lie within 32 bits, so the casts are definitely safe. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174717 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM cost model: Address computation in vector mem ops not freeArnold Schwaighofer2013-02-089-13/+134
| | | | | | | | | | | | | | | Adds a function to target transform info to query for the cost of address computation. The cost model analysis pass now also queries this interface. The code in LoopVectorize adds the cost of address computation as part of the memory instruction cost calculation. Only there, we know whether the instruction will be scalarized or not. Increase the penality for inserting in to D registers on swift. This becomes necessary because we now always assume that address computation has a cost and three is a closer value to the architecture. radar://13097204 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174713 91177308-0d34-0410-b5e6-96231b3b80d8
* Update tests for DWARF parser: store sources next to pre-built object files ↵Alexey Samsonov2013-02-0819-39/+132
| | | | | | and provide build instructions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174711 91177308-0d34-0410-b5e6-96231b3b80d8
* Test CommitMichael Kuperstein2013-02-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174709 91177308-0d34-0410-b5e6-96231b3b80d8
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