Chris Lattner
b078b28fa5
* Significant changes to the preheader insertion pass:
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- Now we perform loop exit-block splitting to ensure exit blocks are
always dominated by the loop header.
- We now preserve dominance frontier information
- This fixes bug: LICM/2003-02-26-LoopExitNotDominated.ll
llvm-svn: 5652
2003-02-27 20:27:08 +00:00
Chris Lattner
db73d0ceab
Make the interface to update a little more efficient
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llvm-svn: 5651
2003-02-27 20:24:17 +00:00
Chris Lattner
ac72aab6e7
- LoopInfo now calculates and tracks loop exit blocks
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llvm-svn: 5650
2003-02-27 00:38:34 +00:00
Chris Lattner
4efef545d2
* LoopInfo now keeps track of exit blocks from the loop
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* New LoopInfo::isLoopHeader method
* Remove some #if 0 code
llvm-svn: 5649
2003-02-27 00:37:22 +00:00
Chris Lattner
bfe33a49ef
New testcase crashing LICM
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llvm-svn: 5648
2003-02-26 23:16:44 +00:00
Chris Lattner
5baf8bb966
Make the aliassettracker much more precise by actually tracking size
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information for various accesses. What a concept.
llvm-svn: 5647
2003-02-26 22:11:00 +00:00
Chris Lattner
d4e2c5a9a0
Fix test
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llvm-svn: 5646
2003-02-26 22:01:58 +00:00
Chris Lattner
933b11a154
Fix bug: BasicAA/2003-02-26-AccessSizeTest.ll
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llvm-svn: 5645
2003-02-26 21:57:23 +00:00
Chris Lattner
183864424b
New testcase for size tracking brokenness
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llvm-svn: 5644
2003-02-26 21:39:52 +00:00
Chris Lattner
e923b037b7
Fix several bugs in basic-aa
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llvm-svn: 5643
2003-02-26 21:28:49 +00:00
Chris Lattner
ea424f3aff
Rename -no-* to -disable-*
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llvm-svn: 5642
2003-02-26 20:00:41 +00:00
Chris Lattner
4e622afb23
Add new -no-aa implementation
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llvm-svn: 5641
2003-02-26 19:57:10 +00:00
Chris Lattner
721f9fc770
Move BasicAA pass out to it's own header file
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llvm-svn: 5640
2003-02-26 19:41:54 +00:00
Chris Lattner
374168a56e
BasicAA doesn't need a public header
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llvm-svn: 5639
2003-02-26 19:41:46 +00:00
Chris Lattner
4162adcfee
Adjust to implement new AA interface
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llvm-svn: 5638
2003-02-26 19:29:36 +00:00
Chris Lattner
4d57299049
Adjust to new AA interface
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llvm-svn: 5637
2003-02-26 19:29:16 +00:00
Chris Lattner
92a8816086
Convert to work with new AliasAnalysis interface by conservatively assuming all pointers are arbitrarily large accesses
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llvm-svn: 5636
2003-02-26 19:28:57 +00:00
Chris Lattner
5afbabc83b
Calculate and pass load sizes to the alias analysis infrastructure
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llvm-svn: 5635
2003-02-26 19:27:35 +00:00
Chris Lattner
d67ff79f57
Adjust to new AA interface
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Add tracking for Mod/Ref info
llvm-svn: 5634
2003-02-26 19:27:05 +00:00
Chris Lattner
a84b1da40f
- Checkin of the alias analysis work:
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* Takes into account the size of the memory reference to determine aliasing.
* Expose mod/ref information in a more consistent way
* BasicAA can now disambiguate A[i][1] and A[j][2] for conservative request
sizes
llvm-svn: 5633
2003-02-26 19:26:51 +00:00
Chris Lattner
f3a3d13d24
Tweak to work with new AA implementation
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llvm-svn: 5632
2003-02-26 19:25:04 +00:00
Chris Lattner
8a8dc5b686
Checkin of new alias analysis interface:
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* Takes into account the size of the memory reference to determine aliasing.
* Expose mod/ref information in a more consistent way
llvm-svn: 5631
2003-02-26 19:24:47 +00:00
Chris Lattner
b7d52c4fa8
Allow ImmutablePass's to require other immutable passes and to be initialized
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llvm-svn: 5630
2003-02-26 19:10:57 +00:00
Chris Lattner
7f0e8c4d31
* Un "protect" the getAnalysis<> functions
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* Add a new initializePass() method to ImmutablePass
llvm-svn: 5629
2003-02-26 19:10:28 +00:00
Chris Lattner
f37c63bc4b
Remove implemented projects
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llvm-svn: 5628
2003-02-26 16:38:22 +00:00
Chris Lattner
63b566e303
Update programmers manual for renamed method
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llvm-svn: 5627
2003-02-26 16:38:15 +00:00
Chris Lattner
b46d9cdbd8
Hopefully final tweak to this testcase
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llvm-svn: 5626
2003-02-26 16:18:00 +00:00
Chris Lattner
1c20fbe554
Add a new test for basicaa
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llvm-svn: 5625
2003-02-25 21:43:37 +00:00
Chris Lattner
ce3e651af6
Fix typeo
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llvm-svn: 5624
2003-02-25 21:14:59 +00:00
Chris Lattner
b1aeaf7efb
Remove wierd case that can never happen
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llvm-svn: 5623
2003-02-25 20:27:09 +00:00
Chris Lattner
38e874dd6e
Add new helper template function
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llvm-svn: 5622
2003-02-25 00:00:50 +00:00
Chris Lattner
953428667f
Fix testcase
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llvm-svn: 5621
2003-02-24 23:14:07 +00:00
Chris Lattner
497c0d443c
Rename Instruction::hasSideEffects() -> mayWriteToMemory()
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llvm-svn: 5620
2003-02-24 20:48:32 +00:00
Chris Lattner
f2009dbddb
This is a substantial rewrite of the AliasSetTracker class which now uses
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a union-find based algorithm, is significantly faster, and is more general.
It will also scale to handle call instructions correctly, which is a nice
added bonus.
This includes a new pass -print-alias-sets which can be used to show how
alias sets are formed for a particular analysis.
llvm-svn: 5619
2003-02-24 20:37:56 +00:00
Chris Lattner
caba6cfcf5
Initial checkin of CallSite wrapper for Call/Invoke instructions
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llvm-svn: 5618
2003-02-24 20:35:45 +00:00
Chris Lattner
6563942b6e
Fix test
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llvm-svn: 5617
2003-02-24 20:30:14 +00:00
Chris Lattner
f170a0d80f
Make printing messages nicer
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llvm-svn: 5616
2003-02-24 20:07:54 +00:00
Chris Lattner
a54b810eeb
Fix #endif
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llvm-svn: 5615
2003-02-24 04:40:35 +00:00
Chris Lattner
e037ba8cde
Add support for the slist extension
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llvm-svn: 5614
2003-02-24 04:31:49 +00:00
Chris Lattner
1c1f11bd3f
Initial implementation of Loop invariant memory->scalar promotion
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llvm-svn: 5613
2003-02-24 03:52:32 +00:00
Chris Lattner
722477c317
Tweak testcase
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llvm-svn: 5612
2003-02-24 03:52:13 +00:00
Chris Lattner
a124de5ec6
New testcase for scalar promotion
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llvm-svn: 5611
2003-02-24 03:52:04 +00:00
Chris Lattner
2e4c1c8640
Split mem2reg promotion into two parts: a function which does the work, and
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a pass which wraps the function. This allows other passes to use the functionality
llvm-svn: 5610
2003-02-22 23:57:48 +00:00
Chris Lattner
74aa1f8c03
Add a new interface file for the PromoteMemToReg interface in the Utils library
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llvm-svn: 5609
2003-02-22 23:04:52 +00:00
Chris Lattner
283d117dad
Clean up std namespace references
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llvm-svn: 5608
2003-02-22 22:25:17 +00:00
Chris Lattner
ab3dd0580e
New testcase to check to see if LICM is performing scalar promotion
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llvm-svn: 5607
2003-02-22 22:20:19 +00:00
Chris Lattner
4c2012352d
Dramatically simplify building of natural loops and fix a bug where the BBMap
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was not correctly computed.
llvm-svn: 5606
2003-02-22 21:33:11 +00:00
Chris Lattner
1fc8307d2a
Fix the requisite bug that I introduced
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llvm-svn: 5605
2003-02-20 00:28:00 +00:00
Chris Lattner
92bf8c2754
Fix 80 character formatting
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llvm-svn: 5604
2003-02-20 00:18:07 +00:00
Chris Lattner
97d323caea
Fix bug: 2003-02-19-LoopInfoNestingBug.ll
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llvm-svn: 5603
2003-02-20 00:17:17 +00:00