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* Fix 80-column violations and whitespace.Bob Wilson2011-02-032-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124819 91177308-0d34-0410-b5e6-96231b3b80d8
* Ensure that the computed interference intervals actually overlap their basic ↵Jakob Stoklund Olesen2011-02-031-3/+12
| | | | | | blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124815 91177308-0d34-0410-b5e6-96231b3b80d8
* Tweak debug output from SlotIndexes.Jakob Stoklund Olesen2011-02-031-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124814 91177308-0d34-0410-b5e6-96231b3b80d8
* Add debug output and asserts to the phi-connecting code.Jakob Stoklund Olesen2011-02-031-2/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124813 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix coloring bug when mapping values in the middle of a live-through block.Jakob Stoklund Olesen2011-02-031-7/+7
| | | | | | | | | | If the found value is not live-through the block, we should only add liveness up to the requested slot index. When the value is live-through, the whole block should be colored. Bug found by SSA verification in the machine code verifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124812 91177308-0d34-0410-b5e6-96231b3b80d8
* Return live range end points from SplitEditor::enter*/leave*.Jakob Stoklund Olesen2011-02-033-62/+48
| | | | | | | These end points come from the inserted copies, and can be passed directly to useIntv. This simplifies the coloring code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124799 91177308-0d34-0410-b5e6-96231b3b80d8
* Silence an MSVC warningJakob Stoklund Olesen2011-02-031-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124798 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] VEXTRACTF128 support. This commit includes patterns forDavid Greene2011-02-034-0/+76
| | | | | | | | | | | matching EXTRACT_SUBVECTOR to VEXTRACTF128 along with support routines to examine and translate index values. VINSERTF128 comes next. With these two in place we can begin supporting more AVX operations as INSERT/EXTRACT can be used as a fallback when 256-bit support is not available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124797 91177308-0d34-0410-b5e6-96231b3b80d8
* Add XCore intrinsics for resource instructions.Richard Osborne2011-02-031-4/+51
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124794 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve threading of comparisons over select instructions (spotted by myDuncan Sands2011-02-031-3/+25
| | | | | | | | | | | auto-simplifier). This has a big impact on Ada code, but not much else. Unfortunately the impact is mostly negative! This is due to PR9004 (aka SCCP failing to resolve conditional branch conditions in the destination blocks of the branch), in which simple correlated expressions are not resolved but complicated ones are, so simplifying has a bad effect! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124788 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply this.Eric Christopher2011-02-034-224/+181
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124779 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert 124765 in an attempt to find the cycle breaking bootstrap.Eric Christopher2011-02-034-181/+224
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124778 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR9127 by reversing the operands even if they have more then one use.Rafael Espindola2011-02-031-2/+2
| | | | | | | | Reversing the operands allows us to fold, but doesn't force us to. Also, at this point the DAG is still being optimized, so the check for hasOneUse is not very precise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124773 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_fd_ostream: Add a SetUseAtomicWrites() method (uses writev).Daniel Dunbar2011-02-031-3/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124771 91177308-0d34-0410-b5e6-96231b3b80d8
* Defer SplitKit value mapping until all defs are available.Jakob Stoklund Olesen2011-02-034-224/+181
| | | | | | | | | | | | | | | | | | | The greedy register allocator revealed some problems with the value mapping in SplitKit. We would sometimes start mapping values before all defs were known, and that could change a value from a simple 1-1 mapping to a multi-def mapping that requires ssa update. The new approach collects all defs and register assignments first without filling in any live intervals. Only when finish() is called, do we compute liveness and mapped values. At this time we know with certainty which values map to multiple values in a split range. This also has the advantage that we can compute live ranges based on the remaining uses after rematerializing at split points. The current implementation has many opportunities for compile time optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124765 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in comment.Devang Patel2011-02-031-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124759 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support to describe template value parameter in debug info.Devang Patel2011-02-024-0/+52
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124755 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support to describe template parameter type in debug info.Devang Patel2011-02-024-2/+60
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124752 91177308-0d34-0410-b5e6-96231b3b80d8
* Reenable the transform "(X*Y)/Y->X" when the multiplication is known not toDuncan Sands2011-02-021-5/+5
| | | | | | | | | overflow (nsw flag), which was disabled because it breaks 254.gap. I have informed the GAP authors of the mistake in their code, and arranged for the testsuite to use -fwrapv when compiling this benchmark. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124746 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment to match my recent change.Bob Wilson2011-02-021-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124725 91177308-0d34-0410-b5e6-96231b3b80d8
* SimplifyCFG: Turn switches into sub+icmp+branch if possible.Benjamin Kramer2011-02-022-48/+32
| | | | | | | | | | | | | | | | | This makes the job of the later optzn passes easier, allowing the vast amount of icmp transforms to chew on it. We transform 840 switches in gcc.c, leading to a 16k byte shrink of the resulting binary on i386-linux. The testcase from README.txt now compiles into decl %edi cmpl $3, %edi sbbl %eax, %eax andl $1, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124724 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for trampolines on the XCore.Richard Osborne2011-02-024-1/+72
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124722 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove NoVendor and NoOS, added in commit 123990, from Triple. While itDuncan Sands2011-02-021-25/+5
| | | | | | | | | | may be useful to understand "none", this is not the place for it. Tweak the fix to Normalize while there: the fix added in 123990 works correctly, but I like this way better. Finally, now that Triple understands some non-trivial environment values, teach the unittests about them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124720 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove wasteful caching. This isn't needed for correctness because any functionNick Lewycky2011-02-021-23/+2
| | | | | | | | | that might have changed been affected by a merge elsewhere will have been removed from the function set, and it isn't needed for performance because we call grow() ahead of time to prevent reallocations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124717 91177308-0d34-0410-b5e6-96231b3b80d8
* Conservatively, clear optional flags, such as nsw, when performingDan Gohman2011-02-021-0/+15
| | | | | | | | reassociation. No testcase, because I wasn't able to create a testcase which actually demonstrates a problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124713 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix reassociate to clear optional flags, such as nsw.Dan Gohman2011-02-021-0/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124712 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a bug in the disassembler where the mandatory 0x66Sean Callanan2011-02-021-0/+1
| | | | | | | | | prefix would be misinterpreted in some cases on 32-bit x86 platforms. Thanks to Olivier Meurant for identifying the bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124709 91177308-0d34-0410-b5e6-96231b3b80d8
* Given a pair of floating point load and store, if there are no other uses ofEvan Cheng2011-02-023-2/+74
| | | | | | | | | | | | | | | | | | | | the load, then it may be legal to transform the load and store to integer load and store of the same width. This is done if the target specified the transformation as profitable. e.g. On arm, this can transform: vldr.32 s0, [] vstr.32 s0, [] to ldr r12, [] str r12, [] rdar://8944252 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124708 91177308-0d34-0410-b5e6-96231b3b80d8
* PR9081: Split up LDM instruction with deprecated use of both LR and PC.Bob Wilson2011-02-011-2/+3
| | | | | | | This is completely untested but pretty straightforward, so hopefully I got it right. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124694 91177308-0d34-0410-b5e6-96231b3b80d8
* Take Bill Wendling's suggestion for structuring a couple of asserts.Matt Beaumont-Gay2011-02-011-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124688 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix imm printing for logical instructions.Anton Korobeynikov2011-02-013-24/+45
| | | | | | Patch by Brian G. Lucas! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124679 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SwitchInst::removeCase() more efficient.Jay Foad2011-02-011-8/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124659 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a m_Undef pattern for convenience. This is so that code that usesDuncan Sands2011-02-011-16/+16
| | | | | | | | pattern matching can also pattern match undef, creating a more uniform style. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124657 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a m_SignBit pattern for convenience.Duncan Sands2011-02-011-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124656 91177308-0d34-0410-b5e6-96231b3b80d8
* Have m_One also match constant vectors for which every element is 1.Duncan Sands2011-02-012-7/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124655 91177308-0d34-0410-b5e6-96231b3b80d8
* Test commit - fix a double 'should' in a comment.Carl Norum2011-02-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124652 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly merge available_externally and regular definitions when they haveRafael Espindola2011-02-011-2/+4
| | | | | | different visibilities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124650 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bogus assert condition noticed by Csaba Raduly.Evan Cheng2011-02-011-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124645 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply 124275 since the Dragonegg failure was unreproducible.Eric Christopher2011-02-011-82/+85
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124641 91177308-0d34-0410-b5e6-96231b3b80d8
* Patches to build EFI with Clang/LLVM. By Carl Norum.Evan Cheng2011-02-017-16/+39
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124639 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep track of incoming argument's location while emitting LiveIns.Devang Patel2011-01-3110-29/+47
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124611 91177308-0d34-0410-b5e6-96231b3b80d8
* Enumerate .code16/32/64 instead of checking .code prefix. ThisRoman Divacky2011-01-311-1/+1
| | | | | | | | unbreaks some ARM tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124608 91177308-0d34-0410-b5e6-96231b3b80d8
* Error on all .code* directives instead of just .code16 as theyRoman Divacky2011-01-311-2/+2
| | | | | | | | all lead to a silent miscompilation of code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124603 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix vector sign extend to put the source and destination types in theDavid Greene2011-01-311-3/+3
| | | | | | | correct places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124601 91177308-0d34-0410-b5e6-96231b3b80d8
* add a note, progress unblocked by PR8575 being fixed.Chris Lattner2011-01-311-0/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124599 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bug where ReduceLoadWidth was creating illegal ZEXTLOAD instructions.Richard Osborne2011-01-311-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124587 91177308-0d34-0410-b5e6-96231b3b80d8
* Save a mapping between original and cloned constpool entries.Anton Korobeynikov2011-01-302-0/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124570 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify the LSDASection NULL checkAnton Korobeynikov2011-01-301-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124569 91177308-0d34-0410-b5e6-96231b3b80d8
* Recognize and simplifyAnders Carlsson2011-01-301-1/+11
| | | | | | | | | (A+B) == A -> B == 0 A == (A+B) -> B == 0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124567 91177308-0d34-0410-b5e6-96231b3b80d8
* Respect the -tail-dup-size command line option even when optimizing for size.Jakob Stoklund Olesen2011-01-301-1/+2
| | | | | | | This is similar to the -unroll-threshold option. There should be no change in behavior when -tail-dup-size is not explicit on the llc command line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124564 91177308-0d34-0410-b5e6-96231b3b80d8
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