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2008-09-09if loop induction variable is always sign or zero extended then Devang Patel
extend the type of induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56017 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09fix overflow check.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56011 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Make safer variant of alias resolution routine to be defaultAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56005 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Resolve aliases, when possibleAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Make SimplifyDemandedVectorElts simplify vectors with multipleDan Gohman
users, and teach it about shufflevector instructions. Also, fix a subtle bug in SimplifyDemandedVectorElts' insertelement code. This is a patch that was originally written by Eli Friedman, with some fixes and cleanup by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Fix simplifycfg crash in handing block merge.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55971 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08s/RemoveUnreachableBlocks/RemoveUnreachableBlocksFromFn/gDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55965 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08Remove unused counter.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08Remove OptimizeIVType()Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55913 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08Update the callgraph correctly.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55896 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08Update the callgraph correctly in ArgumentPromotion.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08Reapply 55859. This doesn't change anything asDuncan Sands
long as the callgraph is correct. It checks for wrong callgraphs more strictly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55894 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-07Correct a comment and strip trailing whitespace.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55883 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-06fix crash when the malloc/free function is defined or is a declaration with ↵Nuno Lopes
0 parameters. this pass doesnt seem to be used, but still it's now a little more correct git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55873 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-06When PruneEH turned an invoke into an ordinaryDuncan Sands
call (thus changing the call site) it didn't inform the callgraph about this. But the call site does matter - as shown by the testcase, the callgraph become invalid after the inliner ran (with an edge between two functions simply missing), resulting in wrong deductions by GlobalsModRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55872 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Revert r55859. This is breaking the build in the abscence of its companion ↵Owen Anderson
commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55865 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Remove unused map.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55861 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Delete the removeCallEdgeTo callgraph method,Duncan Sands
because it does not maintain a correct list of callsites. I discovered (see following commit) that the inliner will create a wrong callgraph if it is fed a callgraph with correct edges but incorrect callsites. These were created by Prune-EH, and while it wasn't done via removeCallEdgeTo, it could have been done via removeCallEdgeTo, which is an accident waiting to happen. Use removeCallEdgeFor instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55859 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Use removeAllCalledFunctions rather than removingDuncan Sands
edges one by one by hand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Remove trailing whitespace.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55835 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Make this pass return that it made a change ifDuncan Sands
it modifies a functions attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55831 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04A loop may be unswitched multiple times. Reconstruct dom info. at the end.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55806 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04Initialize loop data first.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04Do not unswitch if the function notes say we're optimizing this function for ↵Devang Patel
size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04try to seperate the mechanism into something others can useAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04Add intrinsic forms of pow and exp2. The non-intrinsicDale Johannesen
forms remain to handle older IR files, but will go away soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55781 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04Tidy up several unbeseeming casts from pointer to intptr_t.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04cleanup as per Duncan's reviewAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55766 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Update inline threshold for current function if the notes say, optimize for ↵Devang Patel
size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55745 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Fix a bug that prevented PRE from applying in some cases.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55744 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Initial version of a Partial Specialization IPO pass. It triggers a couple ↵Andrew Lenharth
hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Fix typo in a comment.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55720 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Add parentheses to make code more readable.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55717 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Fix comments.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55716 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Add custom inliner that handles only functions that are marked as always_inline.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55713 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Handle "always inline" note during inline cost analysis.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55712 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Check noinline note and ignore other notes.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55711 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Handle "noinline" note inside the simple inliner.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55708 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Don't apply this transform to vectors. Fixes PR2756.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55690 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Add additional check to ensure that iv is canonicalized.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55682 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Check iteration count.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03While removing PHI, use basicblock to identify incoming value.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55678 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02s/FP_AlwaysInline/FN_NOTE_AlwaysInline/gDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02If all IV uses are extending integer IV then change the type of IV itself, ↵Devang Patel
if possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02respect inline=never and inline=always notes.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55673 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-01Add a small pass that sets the readnone/readonlyDuncan Sands
attributes on functions, based on the result of alias analysis. It's not hardwired to use GlobalsModRef even though this is the only (AFAIK) alias analysis that results in this pass actually doing something. Enable as follows: opt ... -globalsmodref-aa -markmodref ... Advantages of this pass: (1) records the result of globalsmodref in the bitcode, meaning it is available for use by later passes (currently the pass manager isn't smart enough to magically make an advanced alias analysis available to all later passes), which may expose more optimization opportunities; (2) hopefully speeds up compilation when code is optimized twice, for example when a file is compiled to bitcode, then later LTO is done on it: marking functions readonly/readnone when producing the initial bitcode should speed up alias analysis during LTO; (3) good for discovering that globalsmodref doesn't work very well :) Not currently turned on by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27Do not apply the transformation if the target does not support DestTy natively.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27Fix typos and whitespaces. Other cosmetic changes based on feedback.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55424 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26Put a heuristic in place to prevent GVN from falling into bad cases with ↵Owen Anderson
massively complicated CFGs. This speeds up a particular testcase from 12+ hours to 5 seconds with little perceptible loss of quality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55391 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26If IV is used in a int-to-float cast inside the loop then try to eliminate ↵Devang Patel
the cast operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55374 91177308-0d34-0410-b5e6-96231b3b80d8
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