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4468 Commits

Author SHA1 Message Date
Dan Gohman eff71f2953 On 64-bit targets, change 32-bit getelementptr indices to be 64-bit 
getelementptr indices, inserting an explicit cast if necessary.
This helps expose the sign-extension operation to other optimizations.

llvm-svn: 56133
 2008-09-11 23:06:38 +00:00
Dan Gohman 7d01c0654c Fix a vectorshuffle instcombine bug introduced by r55995. 
Patch by Nicolas Capens!

llvm-svn: 56129
 2008-09-11 22:47:57 +00:00
Dan Gohman 9b9d547a5c Fix a copy+paste bug that Duncan spotted. For several 
cases it was still getting lucky and detecting overflow
but it was clearly incorrect.

llvm-svn: 56113
 2008-09-11 18:53:02 +00:00
Dan Gohman 9d9a4be588 In my analysis for r56076 I missed the case where the original 
multiplication overflows.

llvm-svn: 56082
 2008-09-11 00:25:00 +00:00
Dan Gohman c1ae01688f Fix an icmp+sdiv optimization to check for and handle an overflow 
condition. This fixes PR2740.

llvm-svn: 56076
 2008-09-10 23:30:57 +00:00
Devang Patel 728c44ab56 fix white spaces. 
llvm-svn: 56056
 2008-09-10 14:49:55 +00:00
Dan Gohman 97f0a0f28d Fix a warning about comparing signed and unsigned values. 
llvm-svn: 56040
 2008-09-10 01:09:32 +00:00
Devang Patel 92b032f3e6 if loop induction variable is always sign or zero extended then 
extend the type of induction variable.

llvm-svn: 56017
 2008-09-09 21:41:07 +00:00
Devang Patel 92c5367705 fix overflow check. 
llvm-svn: 56011
 2008-09-09 20:54:34 +00:00
Anton Korobeynikov 1a1140429e Make safer variant of alias resolution routine to be default 
llvm-svn: 56005
 2008-09-09 20:05:04 +00:00
Anton Korobeynikov a9b60ee0fc Resolve aliases, when possible 
llvm-svn: 56001
 2008-09-09 19:04:59 +00:00
Dan Gohman 86fb5b48de Make SimplifyDemandedVectorElts simplify vectors with multiple 
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.

llvm-svn: 55995
 2008-09-09 18:11:14 +00:00
Devang Patel 0f7a3507cf Fix simplifycfg crash in handing block merge. 
llvm-svn: 55971
 2008-09-09 01:06:56 +00:00
Devang Patel 3d56051f70 s/RemoveUnreachableBlocks/RemoveUnreachableBlocksFromFn/g 
llvm-svn: 55965
 2008-09-08 22:14:17 +00:00
Devang Patel 7518f250b9 Remove unused counter. 
llvm-svn: 55924
 2008-09-08 17:14:54 +00:00
Devang Patel 538a7f479a Remove OptimizeIVType() 
llvm-svn: 55913
 2008-09-08 16:13:27 +00:00
Duncan Sands b9a6f861b4 Update the callgraph correctly. 
llvm-svn: 55896
 2008-09-08 11:08:09 +00:00
Duncan Sands 3cf7d86556 Update the callgraph correctly in ArgumentPromotion. 
llvm-svn: 55895
 2008-09-08 11:07:35 +00:00
Duncan Sands 46911f1271 Reapply 55859. This doesn't change anything as 
long as the callgraph is correct.  It checks
for wrong callgraphs more strictly.

llvm-svn: 55894
 2008-09-08 11:05:51 +00:00
Duncan Sands 1ea0d2e6db Correct a comment and strip trailing whitespace. 
llvm-svn: 55883
 2008-09-07 09:54:09 +00:00
Nuno Lopes 421f488cb7 fix crash when the malloc/free function is defined or is a declaration with 0 parameters. 
this pass doesnt seem to be used, but still it's now a little more correct

llvm-svn: 55873
 2008-09-06 17:44:06 +00:00
Duncan Sands 95c2a7848a When PruneEH turned an invoke into an ordinary 
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.

llvm-svn: 55872
 2008-09-06 17:19:29 +00:00
Owen Anderson 1dd2e40521 Revert r55859. This is breaking the build in the abscence of its companion commit. 
llvm-svn: 55865
 2008-09-05 23:36:01 +00:00
Devang Patel d94269f906 Remove unused map. 
llvm-svn: 55861
 2008-09-05 21:55:33 +00:00
Duncan Sands 9e23602849 Delete the removeCallEdgeTo callgraph method, 
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.

llvm-svn: 55859
 2008-09-05 21:43:04 +00:00
Duncan Sands 3a52056d4d Use removeAllCalledFunctions rather than removing 
edges one by one by hand.

llvm-svn: 55836
 2008-09-05 14:56:53 +00:00
Duncan Sands 7c8fb1ad93 Remove trailing whitespace. 
llvm-svn: 55835
 2008-09-05 12:37:12 +00:00
Duncan Sands 6dd02b5219 Make this pass return that it made a change if 
it modifies a functions attributes.

llvm-svn: 55831
 2008-09-05 09:08:37 +00:00
Devang Patel 40519f0370 A loop may be unswitched multiple times. Reconstruct dom info. at the end. 
llvm-svn: 55806
 2008-09-04 22:43:59 +00:00
Devang Patel 00ec74616b Initialize loop data first. 
llvm-svn: 55792
 2008-09-04 20:36:36 +00:00
Devang Patel d52071540c Do not unswitch if the function notes say we're optimizing this function for size. 
llvm-svn: 55786
 2008-09-04 18:55:13 +00:00
Andrew Lenharth 19fb2aba50 try to seperate the mechanism into something others can use 
llvm-svn: 55785
 2008-09-04 18:51:26 +00:00
Dale Johannesen fe1bb7964c Add intrinsic forms of pow and exp2. The non-intrinsic 
forms remain to handle older IR files, but will go away soon.

llvm-svn: 55781
 2008-09-04 18:30:46 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Andrew Lenharth 95d573a7f0 cleanup as per Duncan's review 
llvm-svn: 55766
 2008-09-04 14:34:22 +00:00
Devang Patel a26e2075b8 Update inline threshold for current function if the notes say, optimize for size. 
llvm-svn: 55745
 2008-09-03 23:06:09 +00:00
Owen Anderson 2fbfb70530 Fix a bug that prevented PRE from applying in some cases. 
llvm-svn: 55744
 2008-09-03 23:06:07 +00:00
Andrew Lenharth 9fed8f5b9c Initial version of a Partial Specialization IPO pass. It triggers a couple hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still. 
llvm-svn: 55734
 2008-09-03 21:00:28 +00:00
Devang Patel a563d24e5d Fix typo in a comment. 
llvm-svn: 55720
 2008-09-03 20:25:40 +00:00
Devang Patel a4211876e5 Add parentheses to make code more readable. 
llvm-svn: 55717
 2008-09-03 19:57:15 +00:00
Devang Patel 50c66cdb0d Fix comments. 
llvm-svn: 55716
 2008-09-03 19:52:17 +00:00
Devang Patel 924d9084d8 Add custom inliner that handles only functions that are marked as always_inline. 
llvm-svn: 55713
 2008-09-03 18:50:53 +00:00
Devang Patel 0d442ffa2b Handle "always inline" note during inline cost analysis. 
llvm-svn: 55712
 2008-09-03 18:47:45 +00:00
Devang Patel 79661994b1 Check noinline note and ignore other notes. 
llvm-svn: 55711
 2008-09-03 18:46:35 +00:00
Devang Patel 62be9ad270 Handle "noinline" note inside the simple inliner. 
llvm-svn: 55708
 2008-09-03 18:10:21 +00:00
Nick Lewycky 2fcb26cc75 Don't apply this transform to vectors. Fixes PR2756. 
llvm-svn: 55690
 2008-09-03 06:24:21 +00:00
Devang Patel bcd39345de Add additional check to ensure that iv is canonicalized. 
llvm-svn: 55682
 2008-09-03 00:29:13 +00:00
Devang Patel b530f08122 Check iteration count. 
llvm-svn: 55680
 2008-09-03 00:10:56 +00:00
Devang Patel 81fed043c5 While removing PHI, use basicblock to identify incoming value. 
llvm-svn: 55678
 2008-09-03 00:02:42 +00:00
Devang Patel 7e59270272 s/FP_AlwaysInline/FN_NOTE_AlwaysInline/g 
llvm-svn: 55676
 2008-09-02 22:43:57 +00:00