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2006-10-11Fix regression in combiner alias analysis.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30880 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Make sure combiner alias analysis does it's thing.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30879 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Naming consistency.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30878 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Test case for the recently fixed FindModifiedNodeSlot bug.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30877 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Put code example inside of "doc_code" divisions.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30876 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Use cute tblgen tricks to make zap handling more powerful. Specifically,Chris Lattner
when the dag combiner simplifies an and mask, notice this and allow those bits to be missing from the zap mask. This compiles Alpha/zapnot4.ll into: sll $16,3,$0 zapnot $0,3,$0 ret $31,($26),1 instead of: ldah $0,1($31) lda $0,-8($0) sll $16,3,$1 and $1,$0,$0 ret $31,($26),1 It would be *really* nice to replace the hunk of code in the AlphaISelDAGToDAG.cpp file that matches (and (srl (x, C), c2) into (SRL (ZAPNOTi)) with a similar pattern, but I've spent enough time poking at alpha. Make andrew will do this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11new testcase, this should turn into zapChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30874 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Jimptables working again on alpha.Andrew Lenharth
As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Remove dead/redundant instructions. These are handled by ZAPNOTiChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30872 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Special case tblgen generated code for patterns like (and X, 255) or (or X, 42).Chris Lattner
The dag/inst combiners often 'simplify' the masked value based on whether or not the bits are live or known zero/one. This is good and dandy, but often causes special case patterns to fail, such as alpha's CMPBGE pattern, which looks like "(set GPRC:$RC, (setuge (and GPRC:$RA, 255), (and GPRC:$RB, 255)))". Here the pattern for (and X, 255) should match actual dags like (and X, 254) if the dag combiner proved that the missing bits are already zero (one for 'or'). For CodeGen/Alpha/cmpbge.ll:test2 for example, this results in: sll $16,1,$0 cmpbge $0,$17,$0 ret $31,($26),1 instead of: sll $16,1,$0 and $0,254,$0 and $17,255,$1 cmpule $1,$0,$0 ret $31,($26),1 ... and requires no target-specific code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30871 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Both of these functions should turn into cmpbge instructions, even thoughChris Lattner
the second has an and of 254 not 255. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30870 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11add two helper methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30869 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11Split some code out into a new method. The generated code is exactlyChris Lattner
identical, this is just a refactoring. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30868 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11This entry is done. switched to the gcc way of doing things.Andrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30867 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper ↵Evan Cheng
SelectionDAGCSEMap ID. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30866 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11new testcase for zap generation, from the alpha readmeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30865 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-11This has apparently been fixedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30864 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Make the bugpoint reduction heuristics more effective. Patch submitted byChris Lattner
Domagoj Babic, thanks! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30863 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10uint <-> double conversionRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30862 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Also update getNodeLabel for LoadSDNode.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30861 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10SDNode::dump should also print out extension type and VT.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30860 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10add fp subRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30859 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10add double <-> int conversionRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30858 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Fix another bug in extload promotion.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30857 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10compare doublesRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30856 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10add some tests for floating point compareRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30855 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10initial support for fp compares. Unordered compares not implemented yetRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30854 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Fix a bug introduced by my LOAD/LOADX changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30853 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Add test case from PR940.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30852 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10More isel time load folding checking for nodes that produce flag values.Evan Cheng
See comment in CanBeFoldedBy() for detailed explanation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30851 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-10Comments; getChain(), getBasePtr(), etc. should return a SDOperand by value.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30850 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09shufps with load folding is better than movaps; movsd.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30849 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Don't go too crazy with these AddComplexity. Try matching shufps with loadEvan Cheng
folding first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30848 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Don't convert to MOVLP if using shufps etc. may allow load folding.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30847 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Use FindProgramByName instead of FindExecutable.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30846 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Predicate function on the node should be matched before its childrean' matchingEvan Cheng
code. This is especially important now matching ISD::LOAD also requires a Predicate_Load call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30845 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30844 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Merging ISD::LOAD and ISD::LOADX. Added LoadSDNode to represent load nodes.Evan Cheng
Chain and address ptr remains as operands. SrcValue, extending mode, extending VT (or rather loaded VT before extension) are now instance variables of LoadSDNode. Introduce load / store addressing modes to represent pre- and post-indexed load and store. Also added an additional operand offset that is only used in post-indexed mode (i.e. base ptr += offset after load/store). Added alignment info (not yet used) and isVolatile fields. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30843 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Do error checking.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30842 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Remove a dead var noticed by YorionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30841 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09add some tests for floating point arithmeticRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30840 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Fix build error in gcc 3.4 and make more this generalAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30839 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Use GetTemporaryDirectory. Fix http://llvm.org/bugs/show_bug.cgi?id=894Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30838 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Fix usage example.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30837 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09add float -> double and double -> float conversionRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30835 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Fix PR886:Reid Spencer
The result of yyparse() was not being checked. When YYERROR or YYABORT is called it causes yyparse() to return 1 to indicate the error. The code was silently ignoring this situation because it previously expected either an exception or a null ParserResult to indicate an error. The patch corrects this situation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30834 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09xfail this until andrew has a chance to implement the alpha TM method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30833 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09add a test for adds adcsRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30832 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09Fix a bug pointed out by Zhongxing XuChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30831 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-09add ADDS and ADCSRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30830 91177308-0d34-0410-b5e6-96231b3b80d8