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* Unweaken vtables as per ↵David Blaikie2011-12-2027-5/+63
| | | | | | http://llvm.org/docs/CodingStandards.html#ll_virtual_anch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
* fix typoChris Lattner2011-12-201-1/+1
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* add a method to improve compatibility with SmallVector.Chris Lattner2011-12-201-0/+6
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* Add basic generic CodeGen support for half.Dan Gohman2011-12-202-64/+69
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* Add a if-conversion optimization that allows 'true' side of a diamond to beEvan Cheng2011-12-191-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | unpredicated. That is, turn subeq r0, r1, #1 addne r0, r1, #1 into sub r0, r1, #1 addne r0, r1, #1 For targets where conditional instructions are always executed, this may be beneficial. It may remove pseudo anti-dependency in out-of-order execution CPUs. e.g. op r1, ... str r1, [r10] ; end-of-life of r1 as div result cmp r0, #65 movne r1, #44 ; raw dependency on previous r1 moveq r1, #12 If movne is unpredicated, then op r1, ... str r1, [r10] cmp r0, #65 mov r1, #44 ; r1 written unconditionally moveq r1, #12 Both mov and moveq are no longer depdendent on the first instruction. This gives the out-of-order execution engine more freedom to reorder them. This has passed entire LLVM test suite. But it has not been enabled for any ARM variant pending more performance evaluation. rdar://8951196 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146914 91177308-0d34-0410-b5e6-96231b3b80d8
* Add "using" to silence warnings.Eli Friedman2011-12-191-0/+2
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* Attempt to fix PR11607 by shuffling around which class defines which methods.Eli Friedman2011-12-191-2/+7
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* Emit a getMatchingSuperRegClass() implementation for every target.Jakob Stoklund Olesen2011-12-191-3/+4
| | | | | | | | | Use information computed while inferring new register classes to emit accurate, table-driven implementations of getMatchingSuperRegClass(). Delete the old manual, error-prone implementations in the targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146873 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow inlining of functions with returns_twice calls, if they have theJoerg Sonnenberger2011-12-182-14/+19
| | | | | | | attribute themselve. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146851 91177308-0d34-0410-b5e6-96231b3b80d8
* As Doug pointed out (and I really should know), it is perfectly easy toChandler Carruth2011-12-171-16/+4
| | | | | | | | | make VariadicFunction actually be trivial. Do so, and also make it look more like your standard trivial functor by making it a struct with no access specifiers. The unit test is updated to initialize its functors properly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146827 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor code used in InstCombine::FoldAndOfICmps to new file.Pete Cooper2011-12-171-0/+66
| | | | | | This will be used by SimplifyCfg in a later commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146803 91177308-0d34-0410-b5e6-96231b3b80d8
* Add back the MC bits of 126425. Original patch by Nathan Jeffords. I added theRafael Espindola2011-12-171-0/+5
| | | | | | asm parsing and testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146801 91177308-0d34-0410-b5e6-96231b3b80d8
* The powers that be have decided that LLVM IR should now support 16-bitDan Gohman2011-12-173-16/+25
| | | | | | | | | "half precision" floating-point with a first-class type. This patch adds basic IR support (but not codegen support). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146786 91177308-0d34-0410-b5e6-96231b3b80d8
* Adds a JSON parser and a benchmark (json-bench) to catch performance ↵Manuel Klimek2011-12-161-0/+444
| | | | | | regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146735 91177308-0d34-0410-b5e6-96231b3b80d8
* Make GCC happy by using makeAraryRef instead of the implicit conversion.Chandler Carruth2011-12-161-4/+4
| | | | | | | I have no idea why GCC can't cope with the implicit conversion and Clang can, or whose bug it is. Grr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146732 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a generic collection of class templates to ADT for buildingChandler Carruth2011-12-161-0/+343
| | | | | | | | | | | | variadic-like functions in C++98. See the comments in the header file for a more detailed description of how these work. We plan to use these extensively in the AST matching library. This code and idea were originally authored by Zhanyong Wan. I've condensed it using macros to reduce repeatition and adjusted it to fit better with LLVM's ADT. Thanks to both David Blaikie and Doug Gregor for the review! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146729 91177308-0d34-0410-b5e6-96231b3b80d8
* [asan] fix a bug (issue 19) where dlclose and the following mmap caused a ↵Kostya Serebryany2011-12-151-0/+3
| | | | | | false positive. compiler part. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146688 91177308-0d34-0410-b5e6-96231b3b80d8
* Zap unnecessary semicolons.Eli Friedman2011-12-151-2/+2
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* Update DebugLoc while merging nodes at -O0.Devang Patel2011-12-151-1/+3
| | | | | | | Patch by Kyriakos Georgiou! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146670 91177308-0d34-0410-b5e6-96231b3b80d8
* Move Instruction::isSafeToSpeculativelyExecute out of VMCore andDan Gohman2011-12-142-20/+21
| | | | | | | | | | into Analysis as a standalone function, since there's no need for it to be in VMCore. Also, update it to use isKnownNonZero and other goodies available in Analysis, making it more precise, enabling more aggressive optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146610 91177308-0d34-0410-b5e6-96231b3b80d8
* Model ARM predicated write as read-mod-write. e.g.Evan Cheng2011-12-141-3/+2
| | | | | | | | | | | | r0 = mov #0 r0 = moveq #1 Then the second instruction has an implicit data dependency on the first instruction. Sadly I have yet to come up with a small test case that demonstrate the post-ra scheduler taking advantage of this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146583 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for local dynamic TLS model in LowerGlobalTLSAddress. Direct objectAkira Hatanaka2011-12-141-0/+3
| | | | | | | | | emission is not supported yet, but a patch that adds the support should follow soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146572 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow target to specify register output dependency. Still default to one.Evan Cheng2011-12-141-0/+10
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* - Add MachineInstrBundle.h and MachineInstrBundle.cpp. This includes a functionEvan Cheng2011-12-146-55/+172
| | | | | | | | | | | to finalize MI bundles (i.e. add BUNDLE instruction and computing register def and use lists of the BUNDLE instruction) and a pass to unpack bundles. - Teach more of MachineBasic and MachineInstr methods to be bundle aware. - Switch Thumb2 IT block to MI bundles and delete the hazard recognizer hack to prevent IT blocks from being broken apart. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146542 91177308-0d34-0410-b5e6-96231b3b80d8
* Per discussion on the list, remove BitcodeVerify pass to reimplement as a ↵Chad Rosier2011-12-141-6/+2
| | | | | | free function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146531 91177308-0d34-0410-b5e6-96231b3b80d8
* Support/FileSystem: Add file_magic and move a vew clients over to it.Michael J. Spencer2011-12-131-2/+43
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* Support/Program: Make Change<stream>ToBinary return error_code.Michael J. Spencer2011-12-131-6/+7
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* Initial CodeGen support for CTTZ/CTLZ where a zero input produces anChandler Carruth2011-12-132-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | undefined result. This adds new ISD nodes for the new semantics, selecting them when the LLVM intrinsic indicates that the undef behavior is desired. The new nodes expand trivially to the old nodes, so targets don't actually need to do anything to support these new nodes besides indicating that they should be expanded. I've done this for all the operand types that I could figure out for all the targets. Owners of various targets, please review and let me know if any of these are incorrect. Note that the expand behavior is *conservatively correct*, and exactly matches LLVM's current behavior with these operations. Ideally this patch will not change behavior in any way. For example the regtest suite finds the exact same instruction sequences coming out of the code generator. That's why there are no new tests here -- all of this is being exercised by the existing test suite. Thanks to Duncan Sands for reviewing the various bits of this patch and helping me get the wrinkles ironed out with expanding for each target. Also thanks to Chris for clarifying through all the discussions that this is indeed the approach he was looking for. That said, there are likely still rough spots. Further review much appreciated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146466 91177308-0d34-0410-b5e6-96231b3b80d8
* Begin sketching out a bitcode verifier pass. Idea is to emit a .bc file andChad Rosier2011-12-121-2/+6
| | | | | | | then read the file back in to verify use-list serialization/deserialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146439 91177308-0d34-0410-b5e6-96231b3b80d8
* Hexagon backend supportTony Linthicum2011-12-124-0/+3687
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* Revert r146363 to allow buildbots to make forward progress.Chad Rosier2011-12-121-6/+2
| | | | | | | | Original commit message: Support/FileSystem: Implement canonicalize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146378 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for gnu_indirect_function.Roman Divacky2011-12-121-0/+1
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* Support/FileSystem: Implement bool equivalent(file_status A, file_status B);Michael J. Spencer2011-12-121-1/+20
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* Support/FileSystem: Implement canonicalize.Michael J. Spencer2011-12-121-2/+6
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* Switch llvm.cttz and llvm.ctlz to accept a second i1 parameter whichChandler Carruth2011-12-121-2/+2
| | | | | | | | | | | | | | | | | | | | indicates whether the intrinsic has a defined result for a first argument equal to zero. This will eventually allow these intrinsics to accurately model the semantics of GCC's __builtin_ctz and __builtin_clz and the X86 instructions (prior to AVX) which implement them. This patch merely sets the stage by extending the signature of these intrinsics and establishing auto-upgrade logic so that the old spelling still works both in IR and in bitcode. The upgrade logic preserves the existing (inefficient) semantics. This patch should not change any behavior. CodeGen isn't updated because it can use the existing semantics regardless of the flag's value. Note that this will be followed by API updates to Clang and DragonEgg. Reviewed by Nick Lewycky! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146357 91177308-0d34-0410-b5e6-96231b3b80d8
* ExecutionEngine: refactor interfaceDylan Noblesmith2011-12-121-3/+2
| | | | | | | | The OptLevel is now redundant with the TargetMachine*. And selectTarget() isn't really JIT-specific and could probably get refactored into one of the lower level libraries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146355 91177308-0d34-0410-b5e6-96231b3b80d8
* Minimize #include's and forward-declares in Target.Nick Lewycky2011-12-102-9/+0
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* Fix typo, reported by Eitan Adler!Nick Lewycky2011-12-101-1/+1
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* Add dump method for debugging.Bill Wendling2011-12-091-0/+3
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* SplitBlockPredecessors uses ArrayRef instead of Data and Size.Jakub Staszak2011-12-091-3/+2
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* [fast-isel] Add support for selecting insertvalue.Chad Rosier2011-12-091-0/+2
| | | | | | rdar://10530851 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146276 91177308-0d34-0410-b5e6-96231b3b80d8
* The second part of support for generating dwarf for assembly source files. ThisKevin Enderby2011-12-093-0/+71
| | | | | | | | | | | generates the dwarf Compile Unit DIE and a dwarf subprogram DIE for each non-temporary label. The next part will be to get the clang driver to enable this when assembling a .s file. rdar://9275556 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146262 91177308-0d34-0410-b5e6-96231b3b80d8
* Move isUnpredicatedTerminator() default implementation to ↵Evan Cheng2011-12-091-1/+2
| | | | | | TargetInstrInfoImpl to break Target's dependency on CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146247 91177308-0d34-0410-b5e6-96231b3b80d8
* Add -unroll-runtime for unrolling loops with run-time trip counts.Andrew Trick2011-12-091-1/+4
| | | | | | | | | | | | | | Patch by Brendon Cahoon! This extends the existing LoopUnroll and LoopUnrollPass. Brendon measured no regressions in the llvm test suite with -unroll-runtime enabled. This implementation works by using the existing loop unrolling code to unroll the loop by a power-of-two (default 8). It generates an if-then-else sequence of code prior to the loop to execute the extra iterations before entering the unrolled loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146245 91177308-0d34-0410-b5e6-96231b3b80d8
* Support/FileSystem: Implement recursive_directory_iterator and makeMichael J. Spencer2011-12-082-33/+136
| | | | | | directory_iterator preserve InputIterator semantics on copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146200 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove reference to dead GEPSplitterPass. PR11506.Eli Friedman2011-12-081-6/+0
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* Enhance both TargetLibraryInfo and SelectionDAGBuilder so that the latter ↵Owen Anderson2011-12-082-0/+26
| | | | | | can use the former to prevent the formation of libm SDNode's when -fno-builtin is passed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146193 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MachineInstr instruction property queries more flexible. This change allEvan Cheng2011-12-081-58/+63
| | | | | | | | | clients to decide whether to look inside bundled instructions and whether the query should return true if any / all bundled instructions have the queried property. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146168 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix 80-column.Chad Rosier2011-12-081-1/+3
| | | | | | | Simplify code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146112 91177308-0d34-0410-b5e6-96231b3b80d8
* Add Tsan annotations to the pass system.Nick Lewycky2011-12-081-1/+6
| | | | | | | Perhaps once(&func) should be hoisted into lib/Support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146110 91177308-0d34-0410-b5e6-96231b3b80d8
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