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bcb37fd22f
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4464 Commits

Author SHA1 Message Date
Dan Gohman
bcb37fd22f Fix a copy+paste bug that Duncan spotted. For several 
cases it was still getting lucky and detecting overflow
but it was clearly incorrect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56113 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 18:53:02 +00:00
Dan Gohman
7f85fbd9de In my analysis for r56076 I missed the case where the original 
multiplication overflows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56082 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 00:25:00 +00:00
Dan Gohman
1df3fd6683 Fix an icmp+sdiv optimization to check for and handle an overflow 
condition. This fixes PR2740.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 23:30:57 +00:00
Devang Patel
36a5bf8fd8 fix white spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56056 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 14:49:55 +00:00
Dan Gohman
cb89309399 Fix a warning about comparing signed and unsigned values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56040 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 01:09:32 +00:00
Devang Patel
d22a849282 if loop induction variable is always sign or zero extended then 
extend the type of induction variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56017 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 21:41:07 +00:00
Devang Patel
4b3f08bac7 fix overflow check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:54:34 +00:00
Anton Korobeynikov
19e861a4ff Make safer variant of alias resolution routine to be default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:05:04 +00:00
Anton Korobeynikov
e4c6b61ebd Resolve aliases, when possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 19:04:59 +00:00
Dan Gohman
488fbfc69e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:11:14 +00:00
Devang Patel
e435a5d937 Fix simplifycfg crash in handing block merge. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55971 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:06:56 +00:00
Devang Patel
2379089a6e s/RemoveUnreachableBlocks/RemoveUnreachableBlocksFromFn/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55965 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 22:14:17 +00:00
Devang Patel
245d0ab166 Remove unused counter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 17:14:54 +00:00
Devang Patel
175f9d94db Remove OptimizeIVType() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55913 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:13:27 +00:00
Duncan Sands
a9c3251e6b Update the callgraph correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55896 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:08:09 +00:00
Duncan Sands
34c8847b2d Update the callgraph correctly in ArgumentPromotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55895 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:07:35 +00:00
Duncan Sands
d7b9851c4e Reapply 55859. This doesn't change anything as 
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
 2008-09-08 11:05:51 +00:00
Duncan Sands
4cddaf77c4 Correct a comment and strip trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55883 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:54:09 +00:00
Nuno Lopes
b9baf31679 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 17:44:06 +00:00
Duncan Sands
fec2c2bf5e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 17:19:29 +00:00
Owen Anderson
6e6074508c Revert r55859. This is breaking the build in the abscence of its companion commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:36:01 +00:00
Devang Patel
bcc11d2a71 Remove unused map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55861 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:55:33 +00:00
Duncan Sands
c94fe21a56 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:43:04 +00:00
Duncan Sands
6f0a7687ab Use removeAllCalledFunctions rather than removing 
edges one by one by hand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55836 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 14:56:53 +00:00
Duncan Sands
a7212e5826 Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55835 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 12:37:12 +00:00
Duncan Sands
cae62e3498 Make this pass return that it made a change if 
it modifies a functions attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55831 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 09:08:37 +00:00
Devang Patel
deafefabae A loop may be unswitched multiple times. Reconstruct dom info. at the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55806 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 22:43:59 +00:00
Devang Patel
027bb92541 Initialize loop data first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 20:36:36 +00:00
Devang Patel
10b359ccb6 Do not unswitch if the function notes say we're optimizing this function for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 18:55:13 +00:00
Andrew Lenharth
eb50479714 try to seperate the mechanism into something others can use 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55785 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 18:51:26 +00:00
Dale Johannesen
53bfbbccbf Add intrinsic forms of pow and exp2. The non-intrinsic 
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
 2008-09-04 18:30:46 +00:00
Dan Gohman
ae73dc1448 Tidy up several unbeseeming casts from pointer to intptr_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 17:05:41 +00:00
Andrew Lenharth
ef7803217a cleanup as per Duncan's review 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 14:34:22 +00:00
Devang Patel
7bbb4339f9 Update inline threshold for current function if the notes say, optimize for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:06:09 +00:00
Owen Anderson
0c7f91cf84 Fix a bug that prevented PRE from applying in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55744 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:06:07 +00:00
Andrew Lenharth
cf996d4b56 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 21:00:28 +00:00
Devang Patel
7946e7b8a4 Fix typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55720 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:25:40 +00:00
Devang Patel
79cca4f49f Add parentheses to make code more readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55717 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:57:15 +00:00
Devang Patel
3fb68373c4 Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:52:17 +00:00
Devang Patel
22ec199fa0 Add custom inliner that handles only functions that are marked as always_inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55713 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:50:53 +00:00
Devang Patel
67243399dd Handle "always inline" note during inline cost analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:47:45 +00:00
Devang Patel
5e06010462 Check noinline note and ignore other notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:46:35 +00:00
Devang Patel
910c120a7c Handle "noinline" note inside the simple inliner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55708 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:10:21 +00:00
Nick Lewycky
23c04309fb Don't apply this transform to vectors. Fixes PR2756. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:24:21 +00:00
Devang Patel
e925ccc553 Add additional check to ensure that iv is canonicalized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:29:13 +00:00
Devang Patel
a9348dc7ac Check iteration count. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:10:56 +00:00
Devang Patel
c72139134c While removing PHI, use basicblock to identify incoming value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:02:42 +00:00
Devang Patel
cb7f483d8c s/FP_AlwaysInline/FN_NOTE_AlwaysInline/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 22:43:57 +00:00
Devang Patel
108f92e376 If all IV uses are extending integer IV then change the type of IV itself, if possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 22:18:08 +00:00
Devang Patel
691e52445e respect inline=never and inline=always notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55673 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 22:16:13 +00:00