Nick Lewycky
9535a84c33
Add PredicateSimplifier pass. Collapses equal variables into one form
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and simplifies expressions. This implements the optimization described
in PR807.
llvm-svn: 29947
2006-08-28 22:44:55 +00:00
Owen Anderson
0d9583aa41
Update some comments, and expose LCSSAID in preparation for having other passes
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require LCSSA.
llvm-svn: 28734
2006-06-08 20:02:53 +00:00
Owen Anderson
93098cfc4c
Skeletal LCSSA pass. This is currently non-functional. Expect functionality
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and documentation updates soo.
llvm-svn: 28495
2006-05-26 13:58:26 +00:00
Chris Lattner
1275941193
Add pass ID's for various passes, so they can be AddRequiredID. Patch by
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Domagoj Babic!
llvm-svn: 28048
2006-05-02 04:24:36 +00:00
Chris Lattner
0b321ad43f
remove a dead prototype
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llvm-svn: 27882
2006-04-20 15:45:54 +00:00
Evan Cheng
db35180b27
For each loop, keep track of all the IV expressions inserted indexed by
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stride. For a set of uses of the IV of a stride which is a multiple
of another stride, do not insert a new IV expression. Rather, reuse the
previous IV and rewrite the uses as uses of IV expression multiplied by
the factor.
e.g.
x = 0 ...; x ++
y = 0 ...; y += 4
then use of y can be rewritten as use of 4*x for x86.
llvm-svn: 26803
2006-03-16 21:53:05 +00:00
Evan Cheng
692235499c
Added target lowering hooks which LSR consults to make more intelligent
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transformation decisions.
llvm-svn: 26738
2006-03-13 23:14:23 +00:00
Andrew Lenharth
79ee761b69
Reg2Mem is something a pass may depend on, so allow that
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llvm-svn: 24488
2005-11-22 22:14:23 +00:00
Andrew Lenharth
03d60c3d09
The pass everyone has been waiting for!
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Reg2Mem
for fun you can opt -reg2mem -mem2reg
llvm-svn: 24267
2005-11-10 01:58:38 +00:00
Nate Begeman
f299b9fb03
Add support alignment of allocation instructions.
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Add support for specifying alignment and size of setjmp jmpbufs.
No targets currently do anything with this information, nor is it presrved
in the bytecode representation. That's coming up next.
llvm-svn: 24196
2005-11-05 09:21:28 +00:00
Chris Lattner
dae0aafea8
Remove the LowerConstantExpressionsPass pass
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llvm-svn: 24089
2005-10-29 05:32:20 +00:00
Misha Brukman
58c97e67f3
Remove trailing whitespace
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llvm-svn: 21412
2005-04-21 20:59:05 +00:00
Chris Lattner
ca287099e1
add a new prototype
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llvm-svn: 21305
2005-04-15 19:24:49 +00:00
Alkis Evlogimenos
e0e628a401
Rename createPromoteMemoryToRegister() to
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createPromoteMemoryToRegisterPass() to be consistent with other pass
creation functions.
llvm-svn: 20885
2005-03-28 02:01:12 +00:00
Jeff Cohen
29ecafb2e3
Add support for not strength reducing GEPs where the element size is a small
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power of two. This emphatically includes the zeroeth power of two.
llvm-svn: 20429
2005-03-04 04:04:26 +00:00
Chris Lattner
f43446fb2f
Add an argument.
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llvm-svn: 20413
2005-03-03 01:03:10 +00:00
Jeff Cohen
ce541ade79
Add more missing createXxxPass functions.
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llvm-svn: 19370
2005-01-08 17:21:40 +00:00
Chris Lattner
e2b8d886c9
Move the strip pass from Scalar to IPO lib
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llvm-svn: 18438
2004-12-02 21:24:19 +00:00
Chris Lattner
fd98a3195a
New prototype for lowerpacked pass.
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llvm-svn: 17915
2004-11-17 18:01:49 +00:00
Chris Lattner
6807c1681b
This is V9 specific stuff
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llvm-svn: 17546
2004-11-07 00:42:29 +00:00
Nate Begeman
49e38c2185
Initial implementation of the strength reduction for GEP instructions in
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loops. This optimization is not turned on by default yet, but may be run
with the opt tool's -loop-reduce flag. There are many FIXMEs listed in the
code that will make it far more applicable to a wide range of code, but you
have to start somewhere :)
This limited version currently triggers on the following tests in the
MultiSource directory:
pcompress2: 7 times
cfrac: 5 times
anagram: 2 times
ks: 6 times
yacr2: 2 times
llvm-svn: 17134
2004-10-18 21:08:22 +00:00
Chris Lattner
a4d3f95fa3
Do not prototype any of these passes as returning Pass*. Instead, be specific
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llvm-svn: 16431
2004-09-20 04:41:39 +00:00
Chris Lattner
f1450e2a51
Remove unused pass
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llvm-svn: 16338
2004-09-14 16:34:08 +00:00
Chris Lattner
00ff5a4e35
Expose breakcriticaledges as a functionpass
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llvm-svn: 15370
2004-07-31 10:02:24 +00:00
Brian Gaeke
45adb41f46
Make the create...() functions for some of these passes return a FunctionPass *.
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llvm-svn: 15276
2004-07-27 17:43:21 +00:00
Chris Lattner
d1cfccd01e
New prototype
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llvm-svn: 15102
2004-07-22 08:07:30 +00:00
Chris Lattner
2420a80afa
Prototype for new ConstantExpr lowering pass, contributed by Vladimir Prus!
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llvm-svn: 14397
2004-06-25 07:41:06 +00:00
Chris Lattner
f9d9fd95bd
Add a new prototype
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llvm-svn: 13685
2004-05-23 21:16:13 +00:00
Chris Lattner
10c5fa0de9
Add accessor for a Loop Unswitching pass
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llvm-svn: 13066
2004-04-19 06:28:37 +00:00
Chris Lattner
27fd823c1b
Add prototype
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llvm-svn: 13029
2004-04-18 05:20:32 +00:00
Chris Lattner
34112aa99f
Improve description, add warning
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llvm-svn: 12570
2004-03-31 21:59:07 +00:00
Chris Lattner
58a6a4d57a
Add a simple select instruction lowering pass
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llvm-svn: 12540
2004-03-30 18:41:10 +00:00
Chris Lattner
3bb91dafcd
Move loop extractor to the IPO header
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llvm-svn: 12374
2004-03-14 02:36:34 +00:00
Misha Brukman
1ddb180929
Add the prototype for the LoopExtractor Pass.
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llvm-svn: 11937
2004-02-28 03:33:17 +00:00
Misha Brukman
47df5a35ec
Fix spelling of `tendency'.
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llvm-svn: 11378
2004-02-13 16:23:14 +00:00
Chris Lattner
2b87d0184b
Expose a pass ID for lower-invoke
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llvm-svn: 11377
2004-02-13 16:16:35 +00:00
Brian Gaeke
d25f86d683
Put all LLVM code into the llvm namespace, as per bug 109.
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llvm-svn: 9903
2003-11-11 22:41:34 +00:00
Chris Lattner
6beaeb1c1d
Move isCriticalEdge & SplitCritical edge out of this file, which is only
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for passes.
llvm-svn: 9851
2003-11-10 04:09:44 +00:00
Misha Brukman
b6f41c96d7
Declare FunctionPasses as such.
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llvm-svn: 9767
2003-11-07 17:19:39 +00:00
John Criswell
16c6cda9d5
Added LLVM copyright header (for lack of a better term).
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llvm-svn: 9304
2003-10-20 20:19:47 +00:00
Chris Lattner
f4ca01758d
Rename loop preheaders pass to loop simplify
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llvm-svn: 9061
2003-10-12 21:52:28 +00:00
Chris Lattner
8848bf58ce
Add new prototype for createLowerInvokePass(). Make simplifycfg be a
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functionpass
llvm-svn: 8870
2003-10-05 19:15:13 +00:00
Chris Lattner
4e4c763dfc
Standardize header file comments
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llvm-svn: 8782
2003-09-30 18:37:50 +00:00
Chris Lattner
bf7dd80e7c
Expose the TCE pass
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llvm-svn: 8619
2003-09-20 05:14:13 +00:00
Chris Lattner
58d4183a25
Fix spell-o's
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llvm-svn: 8431
2003-09-10 05:29:43 +00:00
Chris Lattner
603a7af227
Add RPR prototype here
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llvm-svn: 8314
2003-09-01 20:44:42 +00:00
Chris Lattner
2ef2a63728
Change the RaiseAllocations pass from being a BasicBlockPass to being a Pass
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llvm-svn: 8279
2003-09-01 03:14:00 +00:00
Brian Gaeke
4651096037
Factory methods for function passes now return type FunctionPass *.
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llvm-svn: 7839
2003-08-14 06:09:32 +00:00
Brian Gaeke
77c65be59e
Factory methods for FunctionPasses now return type FunctionPass *.
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llvm-svn: 7823
2003-08-13 18:18:15 +00:00
Chris Lattner
6c260f1c5c
Add prototype for tail-dup pass
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llvm-svn: 6847
2003-06-22 20:10:42 +00:00
Chris Lattner
593cb8cafe
Expose proto for SRoA pass.
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llvm-svn: 6348
2003-05-27 15:52:45 +00:00
Misha Brukman
825e174bf7
Hopefully, the final fix for `[Pp]ropogate'.
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llvm-svn: 6251
2003-05-20 21:01:22 +00:00
Chris Lattner
0a9913935f
Add stub to create lowerSwitches pass
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llvm-svn: 5866
2003-04-23 16:24:19 +00:00
Chris Lattner
3cf20c3f14
Expose isCriticalEdge & SplitCriticalEdge methods from crit-edges pass
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llvm-svn: 4075
2002-10-08 21:06:27 +00:00
Chris Lattner
9a954d1bc1
Checkin new loop-preheader insertion pass.
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llvm-svn: 3943
2002-09-26 16:17:33 +00:00
Chris Lattner
4b838cd6b5
Change LowerAllocations pass to 'require' TargetData instead of it being
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passed in.
llvm-svn: 3930
2002-09-25 23:47:49 +00:00
Chris Lattner
63940ae296
Expose passinfo from BreakCriticalEdges pass so that it may be "Required" by
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other passes
llvm-svn: 3906
2002-09-24 15:42:27 +00:00
Chris Lattner
cd247490cd
Add new BreakCriticalEdges pass
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llvm-svn: 3902
2002-09-24 00:08:37 +00:00
Vikram S. Adve
5a92d517b0
Allow transformation DecomposeArrayRef(GetElementPtrInst* GEP) to
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be invoked on a single instruction at a time, for use in other passes.
llvm-svn: 3751
2002-09-16 16:07:19 +00:00
Chris Lattner
1cf6da5815
Include stub for correlated expression elimination pass
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llvm-svn: 3597
2002-09-06 18:39:29 +00:00
Chris Lattner
d8c37e2e73
Merge the contents of ChangeAllocations.h into Scalar.h
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llvm-svn: 3028
2002-07-23 19:37:38 +00:00
Chris Lattner
ae889c277a
Expose CFG simplification pass
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llvm-svn: 2696
2002-05-21 20:04:15 +00:00
Chris Lattner
5a85ea20e5
Add prototype for LICM pass
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llvm-svn: 2612
2002-05-10 22:44:16 +00:00
Chris Lattner
93ba8ba0a9
Add prototype for the PiNodeInserter pass
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llvm-svn: 2592
2002-05-10 05:40:37 +00:00
Chris Lattner
1212eabe1f
Add expr reassociation pass prototype
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llvm-svn: 2558
2002-05-08 22:19:01 +00:00
Chris Lattner
abf9a50ee5
Spell aggressive right
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llvm-svn: 2549
2002-05-07 22:12:52 +00:00
Chris Lattner
bb3896eed3
New header file to replace all of the Scalar/*.h files.
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llvm-svn: 2533
2002-05-07 19:37:18 +00:00