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* [fast-isel] Tell fast-isel to do nothing with the new donothing intrinsic.Chad Rosier2012-07-062-0/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159837 91177308-0d34-0410-b5e6-96231b3b80d8
* Update getFunction parameter documentation. Fixes PR13268.Chad Rosier2012-07-061-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159835 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r159789.Dmitri Gribenko2012-07-061-17/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159834 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/include/llvm/CMakeLists.txt: Cut dependency to intrinsics_gen.NAKAMURA Takumi2012-07-061-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159831 91177308-0d34-0410-b5e6-96231b3b80d8
* Attempt to fix windows buildbots. Patch by James Benton.Duncan Sands2012-07-061-5/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159826 91177308-0d34-0410-b5e6-96231b3b80d8
* test/CodeGen/X86/sext-setcc-self.ll: Mark it as XFAIL: cygwin,mingw32,win32. ↵NAKAMURA Takumi2012-07-061-0/+4
| | | | | | Investigating. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159820 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r159804, "[arm-fast-isel] Add support for vararg function calls."NAKAMURA Takumi2012-07-062-76/+26
| | | | | | It broke LLVM :: CodeGen/Thumb2/large-call.ll on several hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159817 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR13202 and a regtest.Alexey Samsonov2012-07-062-0/+63
| | | | | | | | | | | | | | DwarfDebug class could generate the same (inlined) DIVariable twice: 1) when trying to find abstract debug variable for a concrete inlined instance. 2) when explicitly collecting info for variables that were optimized out. This change makes sure that this duplication won't happen and makes Clang pass "gdb.opt/inline-locals" test from gdb testsuite. Reviewed by Eric Christopher. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159811 91177308-0d34-0410-b5e6-96231b3b80d8
* Sphinxify the CMake document.Bill Wendling2012-07-063-585/+425
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159806 91177308-0d34-0410-b5e6-96231b3b80d8
* [arm-fast-isel] Add support for vararg function calls.Jush Lu2012-07-062-26/+76
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159804 91177308-0d34-0410-b5e6-96231b3b80d8
* Changes per review of commit 159787Jack Carter2012-07-061-6/+5
| | | | | | | | | | | Mips specific inline asm operand modifier D. Comment changes and predicate change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159802 91177308-0d34-0410-b5e6-96231b3b80d8
* Untabify and move a function near similar functions dealing with structEric Christopher2012-07-061-29/+30
| | | | | | types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159801 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some comments suggested in code review.Jakob Stoklund Olesen2012-07-061-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159800 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable new[] on llvm::BumpPtrAllocator.Dmitri Gribenko2012-07-061-0/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159789 91177308-0d34-0410-b5e6-96231b3b80d8
* Mips specific inline asm operand modifier D.Jack Carter2012-07-052-29/+94
| | | | | | | | | | | | | Print the second half of a double word operand. The include list was cleaned up a bit as well. Also the test case was modified to test for both big and little patterns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159787 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an overzealous assertion. It is legitimate for a target to have ↵Owen Anderson2012-07-051-1/+1
| | | | | | multiple fixups on a single instruction that target the same byte, so long as their bit-offsets are coordinates appropriately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159785 91177308-0d34-0410-b5e6-96231b3b80d8
* test case for r159770.Akira Hatanaka2012-07-051-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159771 91177308-0d34-0410-b5e6-96231b3b80d8
* Enclose instruction rdhwr with directives, which are needed when target isAkira Hatanaka2012-07-051-0/+18
| | | | | | | | mips32 rev1 (the directives are emitted when target is mips32r2 too). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159770 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable target dependent directive parsing to hook before standard parser inAkira Hatanaka2012-07-051-3/+5
| | | | | | | | | | AsmParser::ParseStatement. Patch by Vladimir Medic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159768 91177308-0d34-0410-b5e6-96231b3b80d8
* add @llvm.donothingNuno Lopes2012-07-051-2/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159758 91177308-0d34-0410-b5e6-96231b3b80d8
* Optimize extendIntervalEndTo a tiny bit by saving one call through theChandler Carruth2012-07-051-7/+7
| | | | | | vector erase. No functionality changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159746 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead infrastructure for building DenseMaps with a SlotIndex asChandler Carruth2012-07-051-31/+0
| | | | | | | | the key -- they are now stored in an IntervalMap. I noticed this while looking into PR12652. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159745 91177308-0d34-0410-b5e6-96231b3b80d8
* Finish fixing the MachineOperand hashing, providing a nice modernChandler Carruth2012-07-052-47/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | hash_value overload for MachineOperands. This addresses a FIXME sufficient for me to remove it, and cleans up the code nicely too. The important changes to the hashing logic: - TargetFlags are now included in all of the hashes. These were complete missed. - Register operands have their subregisters and whether they are a def included in the hash. - We now actually hash all of the operand types. Previously, many operand types were simply *dropped on the floor*. For example: - Floating point immediates - Large integer immediates (>64-bit) - External globals! - Register masks - Metadata operands - It removes the offset from the block-address hash; I'm a bit suspicious of this, but isIdenticalTo doesn't consider the offset for black addresses. Any patterns involving these entities could have triggered extreme slowdowns in MachineCSE or PHIElimination. Let me know if there are PRs you think might be closed now... I'm looking myself, but I may miss them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159743 91177308-0d34-0410-b5e6-96231b3b80d8
* All cases are covered, no need for a default. This deals with theDuncan Sands2012-07-051-1/+0
| | | | | | | corresponding clang warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159742 91177308-0d34-0410-b5e6-96231b3b80d8
* The hash function for MI expressions, used by MachineCSE, is reallyChandler Carruth2012-07-051-3/+8
| | | | | | | | | | | | | | | | | | | | | broken. This patch fixes the superficial problems which lead to the intractably slow compile times reported in PR13225. The specific issue is that we were failing to include the *offset* of a global variable in the hash code. Oops. This would in turn cause all MIs which were only distinguishable due to operating on different offsets of a global variable to produce identical hash functions. In some of the test cases attached to the PR I saw hash table activity where there were O(1000) probes-per-lookup *on average*. A very few entries were responsible for most of these probes. There is still quite a bit more to do here. The ad-hoc layering of data in MachineOperands makes them *extremely* brittle to hash correctly. We're missing quite a few other cases, the only ones I've fixed here are the specific MO types which were allowed through the assert() in getOffset(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159741 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the right kind of booleans: we were emitting 0/1 booleans, instead of 0/-1Duncan Sands2012-07-052-9/+72
| | | | | | | booleans. Patch by James Benton. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159739 91177308-0d34-0410-b5e6-96231b3b80d8
* [tsan] fix compile-time falilure found while building Chromium with tsan ↵Kostya Serebryany2012-07-051-0/+5
| | | | | | (tsan issue #3). A unit test will follow separately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159736 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ParentMap. You can just ask the domnode for its parent. No functionalityNick Lewycky2012-07-051-11/+8
| | | | | | | | | | | change. Move the "Not profitable, avoid CSE!" debug message next to where we fail the check for profitability and use a different message for avoiding CSE due to being in different register classes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159729 91177308-0d34-0410-b5e6-96231b3b80d8
* Make X86 call and return instructions non-variadic.Jakob Stoklund Olesen2012-07-044-34/+34
| | | | | | | Function argument and return value registers aren't part of the encoding, so they should be implicit operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159728 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow trailing physreg RegisterSDNode operands on non-variadic instructions.Jakob Stoklund Olesen2012-07-043-14/+30
| | | | | | | | | | | | | | | Also allow trailing register mask operands on non-variadic both MachineSDNodes and MachineInstrs. The extra physreg RegisterSDNode operands are added to the MI as <imp-use> operands. This makes it possible to have non-variadic call instructions. Call and return instructions really are non-variadic, the argument registers should only be used implicitly - they are not part of the encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159727 91177308-0d34-0410-b5e6-96231b3b80d8
* Print SlotIndexes when available for -print-machineinstrs.Jakob Stoklund Olesen2012-07-041-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159726 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow multiple terminators to read virtual registers.Jakob Stoklund Olesen2012-07-041-33/+29
| | | | | | | | Find the kill as the last terminator to read SrcReg. Patch by Philipp Brüschweiler! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159722 91177308-0d34-0410-b5e6-96231b3b80d8
* Ensure CopyToReg nodes are always glued to the call instruction.Jakob Stoklund Olesen2012-07-043-44/+34
| | | | | | | | | | | | | The CopyToReg nodes that set up the argument registers before a call must be glued to the call instruction. Otherwise, the scheduler may emit the physreg copies long before the call, causing long live ranges for the fixed registers. Besides disabling good register allocation, that can also expose problems when EmitInstrWithCustomInserter() splits a basic block during the live range of a physreg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159721 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure -print-machineinstrs applies to the first pass as well.Jakob Stoklund Olesen2012-07-041-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159720 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a testcase for pr13209. It is not a great test, but it still fails ifRafael Espindola2012-07-041-0/+74
| | | | | | | 159509 and 159479 are reverted. It would be really nice to be able to run just the coalescer :-( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159715 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in DebugInfo lib, extend a comment for one of the methodsAlexey Samsonov2012-07-042-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159707 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverted r159658:Stepan Dyatkovskiy2012-07-041-84/+2
| | | | | | | | Optimized diff operation: implemented the case when LHS and RHS subsets contains single numbers only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159704 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverted r156659, due to probable performance regressions, DenseMap should ↵Stepan Dyatkovskiy2012-07-043-17/+41
| | | | | | | | | | | | be used here: IntegersSubsetMapping - Replaced type of Items field from std::list with std::map. In neares future I'll test it with DenseMap and do the correspond replacement if possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159703 91177308-0d34-0410-b5e6-96231b3b80d8
* Reduce some code duplication.Eric Christopher2012-07-041-19/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159701 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some ascii art in a comment to not have trailing backslashes (inspirationMatt Beaumont-Gay2012-07-041-5/+5
| | | | | | | from IfConversion.cc), and fix some spelling and grammar in the surrounding prose. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159699 91177308-0d34-0410-b5e6-96231b3b80d8
* Add early if-conversion support to X86.Jakob Stoklund Olesen2012-07-044-1/+133
| | | | | | | | | Implement the TII hooks needed by EarlyIfConversion to create cmov instructions and estimate their latency. Early if-conversion is still not enabled by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159695 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an experimental early if-conversion pass, off by default.Jakob Stoklund Olesen2012-07-047-0/+649
| | | | | | | | | | | | | This pass performs if-conversion on SSA form machine code by speculatively executing both sides of the branch and using a cmov instruction to select the result. This can help lower the number of branch mispredictions on architectures like x86 that don't have predicable instructions. The current implementation is very aggressive, and causes regressions on mosts tests. It needs good heuristics that have yet to be implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159694 91177308-0d34-0410-b5e6-96231b3b80d8
* PHINode::hasConstantValue(): return undef if the PHI is fully recursive.Nuno Lopes2012-07-032-1/+3
| | | | | | Thanks Duncan for the idea git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159687 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the DebugInfo's 'print()' method to emit the comments.Bill Wendling2012-07-031-3/+5
| | | | | | | | These give quite a bit more information about the DebugInfo and makes it more readable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159680 91177308-0d34-0410-b5e6-96231b3b80d8
* BoundsChecking: optimize out the check for offset < 0 if size is known to ↵Nuno Lopes2012-07-032-9/+16
| | | | | | | | be >= 0 (signed). (LLVM optimizers cannot do this optimization by themselves) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159668 91177308-0d34-0410-b5e6-96231b3b80d8
* fold PHI nodes in SizeOffsetEvaluator whenever possible.Nuno Lopes2012-07-032-6/+20
| | | | | | Unfortunately this change requires the cache map to hold WeakVHs instead git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159667 91177308-0d34-0410-b5e6-96231b3b80d8
* improve PHINode::hasConstantValue() to detect recursive cases like %phi = ↵Nuno Lopes2012-07-031-2/+6
| | | | | | phi(%phi,42) as constant git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159666 91177308-0d34-0410-b5e6-96231b3b80d8
* IntegersSubsetMappin: cosmetic changes in diff operation.Stepan Dyatkovskiy2012-07-031-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159661 91177308-0d34-0410-b5e6-96231b3b80d8
* Part of r159527. Splitted into series of patches and gone with fixed PR13256:Stepan Dyatkovskiy2012-07-031-1/+96
| | | | | | | | | | | | | | | | IntegersSubsetMapping Added new methods - add(self& RHS, SuccessorClass *S) - detachCase - removeCase - findSuccessor - getCases - getCaseSingleNumber - isOverlapped git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159660 91177308-0d34-0410-b5e6-96231b3b80d8
* Part of r159527. Splitted into series of patches and gone with fixed PR13256:Stepan Dyatkovskiy2012-07-033-42/+18
| | | | | | | | | | IntegersSubsetMapping - Replaced type of Items field from std::list with std::map. In neares future I'll test it with DenseMap and do the correspond replacement if possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159659 91177308-0d34-0410-b5e6-96231b3b80d8
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