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* Fix a typo noticed by Alain Frisch.Gordon Henriksen2007-12-011-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44493 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow some reloads to be folded in multi-use cases. Specifically testl r, r ↵Evan Cheng2007-12-012-1/+59
| | | | | | -> cmpl [mem], 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44479 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not fold reload into an instruction with multiple uses. It issues one ↵Evan Cheng2007-11-301-0/+81
| | | | | | extra load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44467 91177308-0d34-0410-b5e6-96231b3b80d8
* Update tests.Evan Cheng2007-11-291-1/+1
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* New testcase for PR1744Chris Lattner2007-11-281-0/+8
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* upgrade this testChris Lattner2007-11-281-49/+63
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* make this test have a deterministic result.Chris Lattner2007-11-281-2/+2
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* Add some convenience methods for querying attributes, andDuncan Sands2007-11-281-1/+1
| | | | | | | use them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44403 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert previous "fix" - the breakage was due to someDuncan Sands2007-11-281-1/+1
| | | | | | | local changes, not the "not". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44402 91177308-0d34-0410-b5e6-96231b3b80d8
* This test somehow got an extra "not" during theDuncan Sands2007-11-281-2/+2
| | | | | | | recent stderr updates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44401 91177308-0d34-0410-b5e6-96231b3b80d8
* xfail a testChris Lattner2007-11-281-0/+1
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* update this test after the fmrrd fixChris Lattner2007-11-281-3/+2
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* Fix bug in regression tests that ignored stderr output in RUN lines. Updated ↵Tanya Lattner2007-11-2830-63/+60
| | | | | | | | | tests and fixed broken run lines. XFAILed 3 arm regressions (will file bugs) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44389 91177308-0d34-0410-b5e6-96231b3b80d8
* commit testcase I forgot to svn add.Chris Lattner2007-11-271-0/+13
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* Fix a crash on invalid code due to memcpy lowering.Chris Lattner2007-11-272-0/+39
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* something wrong with this optAndrew Lenharth2007-11-271-0/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44370 91177308-0d34-0410-b5e6-96231b3b80d8
* Add testcase for last llvm-gcc tweaksAnton Korobeynikov2007-11-271-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44368 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1146: parameter attributes are longer part ofDuncan Sands2007-11-277-8/+11
| | | | | | | | | | | | | the function type, instead they belong to functions and function calls. This is an updated and slightly corrected version of Reid Spencer's original patch. The only known problem is that auto-upgrading of bitcode files doesn't seem to work properly (see test/Bitcode/AutoUpgradeIntrinsics.ll). Hopefully a bitcode guru (who might that be? :) ) will fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44359 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this pass for CYGWIN.Zhou Sheng2007-11-271-1/+2
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* Make this testcase compatible with CYGWIN.Zhou Sheng2007-11-271-1/+5
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* Change &| to |&.Dan Gohman2007-11-272-2/+2
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* Change grep '' to grep {}.Dan Gohman2007-11-273-3/+3
| | | | | | | Change 2>&1 | to |&. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44344 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't redirect llvm-as's stderr to llvm-dis.Dan Gohman2007-11-271-1/+1
| | | | | | | Change grep '' to grep {}. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44343 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary && from the RUN lines of this test.Dan Gohman2007-11-271-2/+2
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* Don't lower srem/urem X%C to X-X/C*C unless the division is actuallyDan Gohman2007-11-261-0/+6
| | | | | | | | | | optimized. This avoids creating illegal divisions when the combiner is running after legalize; this fixes PR1815. Also, it produces better code in the included testcase by avoiding the subtract and multiply when the division isn't optimized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44341 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow GVN to eliminate read-only function calls when it can detect that they ↵Owen Anderson2007-11-261-1/+1
| | | | | | are redundant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44323 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new SCEV, SCEVSMax. This allows LLVM to analyze do-while loops.Nick Lewycky2007-11-253-2/+32
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* Implement PR1822Chris Lattner2007-11-251-3/+11
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* Fix PR1816. If a bitcast of a function only exists because of aDuncan Sands2007-11-251-0/+12
| | | | | | | | | | trivial difference in function attributes, allow calls to it to be converted to direct calls. Based on a patch by Török Edwin. While there, move the various lists of mutually incompatible parameters etc out of the verifier and into ParameterAttributes.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44315 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a long standing deficiency in the X86 backend: we wouldChris Lattner2007-11-251-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sometimes emit "zero" and "all one" vectors multiple times, for example: _test2: pcmpeqd %mm0, %mm0 movq %mm0, _M1 pcmpeqd %mm0, %mm0 movq %mm0, _M2 ret instead of: _test2: pcmpeqd %mm0, %mm0 movq %mm0, _M1 movq %mm0, _M2 ret This patch fixes this by always arranging for zero/one vectors to be defined as v4i32 or v2i32 (SSE/MMX) instead of letting them be any random type. This ensures they get trivially CSE'd on the dag. This fix is also important for LegalizeDAGTypes, as it gets unhappy when the x86 backend wants BUILD_VECTOR(i64 0) to be legal even when 'i64' isn't legal. This patch makes the following changes: 1) X86TargetLowering::LowerBUILD_VECTOR now lowers 0/1 vectors into their canonical types. 2) The now-dead patterns are removed from the SSE/MMX .td files. 3) All the patterns in the .td file that referred to immAllOnesV or immAllZerosV in the wrong form now use *_bc to match them with a bitcast wrapped around them. 4) X86DAGToDAGISel::SelectScalarSSELoad is generalized to handle bitcast'd zero vectors, which simplifies the code actually. 5) getShuffleVectorZeroOrUndef is updated to generate a shuffle that is legal, instead of generating one that is illegal and expecting a later legalize pass to clean it up. 6) isZeroShuffle is generalized to handle bitcast of zeros. 7) several other minor tweaks. This patch is definite goodness, but has the potential to cause random code quality regressions. Please be on the lookout for these and let me know if they happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44310 91177308-0d34-0410-b5e6-96231b3b80d8
* upgrade this testChris Lattner2007-11-241-8/+6
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* Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros.Chris Lattner2007-11-231-0/+8
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* Ding dong, the DoesntAccessMemoryFns andDuncan Sands2007-11-237-80/+83
| | | | | | | | | | OnlyReadsMemoryFns tables are dead! We get more, and more accurate, information from gcc via the readnone and readonly function attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44288 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug where we'd try to find a scev value for a bitcast operand,Chris Lattner2007-11-231-0/+20
| | | | | | | | even though the bitcast operand did not have integer type. This fixes PR1814. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44286 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1817.Chris Lattner2007-11-221-0/+16
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* Turn invokes of nounwind functions into ordinary calls.Duncan Sands2007-11-221-0/+14
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* Teach alias analysis about readnone/readonly functions.Duncan Sands2007-11-221-0/+33
| | | | | | | Based on a patch by Török Edwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44279 91177308-0d34-0410-b5e6-96231b3b80d8
* Readonly/readnone functions are allowed to throwDuncan Sands2007-11-221-10/+12
| | | | | | | | exceptions, so don't turn invokes of them into calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44278 91177308-0d34-0410-b5e6-96231b3b80d8
* Create nodes for inline asm so that we don't crash looking for the node later.Nick Lewycky2007-11-221-0/+8
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* Fix a bug in which node A is replaced by node B, but laterDuncan Sands2007-11-211-0/+161
| | | | | | | | | node A gets back into the DAG again because it was hiding in one of the node maps: make sure that node replacement happens in those maps too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44263 91177308-0d34-0410-b5e6-96231b3b80d8
* Be more careful when transforming | to +. Patch from Wojciech Matyjewicz.Nick Lewycky2007-11-201-0/+18
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* Testcase for PR1811Chris Lattner2007-11-191-0/+16
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* Add support in SplitVectorOp for remainder operators.Dan Gohman2007-11-191-0/+15
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* fix bogus test that the more strict lexer is finding.Chris Lattner2007-11-181-1/+1
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* Add support for vectors to int <-> float casts.Nate Begeman2007-11-171-0/+5
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* Typo.Evan Cheng2007-11-161-1/+1
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* Testcase from PR 1508 (although its's somewhatDale Johannesen2007-11-161-0/+133
| | | | | | | | orthogonal to the main problem there) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44194 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1800 by correcting mistaken logic.Chris Lattner2007-11-161-0/+10
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* Reverted r44163 per requestAnton Korobeynikov2007-11-151-0/+1
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* Fix a thinko in post-allocation coalescer.Evan Cheng2007-11-151-0/+67
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