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d8c97ff65d
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444 Commits

Author SHA1 Message Date
Chris Lattner
d8c97ff65d Implement InstCombine/cast-set.ll: test1, test2, test7 
llvm-svn: 9670
 2003-11-03 04:25:02 +00:00
Chris Lattner
01dd059e75 Fix bug with zero sized casts 
llvm-svn: 9667
 2003-11-03 01:29:41 +00:00
Chris Lattner
e005f61e9e Fix bug in previous checkin 
llvm-svn: 9656
 2003-11-02 06:54:48 +00:00
Chris Lattner
a06aa3d2f2 Implement transmogriphication of allocation instructions 
llvm-svn: 9654
 2003-11-02 05:57:39 +00:00
Chris Lattner
c8ea13f032 Fix bug: 2003-10-29-CallSiteResolve.ll & PR70 
llvm-svn: 9600
 2003-10-30 00:46:41 +00:00
Chris Lattner
cb21ea9a32 Fix PR66 & ScalarRepl/2003-10-29-ArrayProblem.ll 
llvm-svn: 9585
 2003-10-29 17:55:44 +00:00
John Criswell
71d2894956 Added LLVM copyright notice to Makefiles. 
llvm-svn: 9312
 2003-10-20 22:26:57 +00:00
John Criswell
b402729b30 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Chris Lattner
87843f87b8 Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions. 
llvm-svn: 9269
 2003-10-19 21:34:28 +00:00
Chris Lattner
ae52a1b309 ADd support for the new varargs instructions 
llvm-svn: 9225
 2003-10-18 05:56:52 +00:00
Chris Lattner
f0da6e06e6 This code does not require random access use_lists 
llvm-svn: 9156
 2003-10-16 16:49:12 +00:00
Chris Lattner
f2ed60c0b7 Decrease usage of use_size() 
llvm-svn: 9135
 2003-10-15 16:48:29 +00:00
Chris Lattner
7a5241cc99 Wrap code at 80 columns 
llvm-svn: 9073
 2003-10-13 05:04:27 +00:00
Chris Lattner
7519b1216b Add support to the loop canonicalization pass to make it transform loops to 
have a SINGLE backedge.  This is useful to, for example, the -indvars pass.

This implements testcase LoopSimplify/single-backedge.ll and closes PR#34

llvm-svn: 9065
 2003-10-13 00:37:13 +00:00
Chris Lattner
f4ca01758d Rename loop preheaders pass to loop simplify 
llvm-svn: 9061
 2003-10-12 21:52:28 +00:00
Chris Lattner
1c8a980870 File is renamed to LoopSimplify.cpp 
llvm-svn: 9059
 2003-10-12 21:44:18 +00:00
Chris Lattner
7fe9661cae First step in renaming the preheaders pass to loopsimplify 
llvm-svn: 9058
 2003-10-12 21:43:28 +00:00
Chris Lattner
510dfc942a The preheader insertion pass only depends on the CFG. Mark it as such, which 
allows GCCAS to only run it once.

llvm-svn: 9056
 2003-10-12 19:33:10 +00:00
Misha Brukman
868eac95dd Fix spelling. 
llvm-svn: 9027
 2003-10-10 17:57:28 +00:00
Chris Lattner
bf95cc12a3 Update comment 
llvm-svn: 8965
 2003-10-08 16:56:11 +00:00
Chris Lattner
9cece85acb Use a set to keep track of which edges have been noticed as executable already 
to avoid reprocessing PHI nodes needlessly.  This speeds up the big bad PHI
testcase 43%: from 104.9826 to 73.5157s

llvm-svn: 8964
 2003-10-08 16:55:34 +00:00
Chris Lattner
251ff679ce Minor fixes here and there 
llvm-svn: 8963
 2003-10-08 16:21:03 +00:00
Chris Lattner
36960b263b Avoid building data structures we don't really need. This improves the runtime 
of a test that Bill Wendling sent me from 228.5s to 105s.  Obviously there is
more improvement to be had, but this is a nice speedup which should be "felt"
by many programs.

llvm-svn: 8962
 2003-10-08 15:47:41 +00:00
Chris Lattner
16b7ed1eaa whoops, don't accidentally lose variable names 
llvm-svn: 8955
 2003-10-07 22:58:41 +00:00
Chris Lattner
f507e6e58e Fix bug: InstCombine/cast.ll:test11 / PR#7 
llvm-svn: 8954
 2003-10-07 22:54:13 +00:00
Chris Lattner
e8b656a62f Refactor code a bit 
llvm-svn: 8952
 2003-10-07 22:32:43 +00:00
Chris Lattner
a18861ff29 Bill contributed this major rewrite of the -lowerswitch pass to make it generate 
logarithmic conditional branch sequences instead of linear sequences.  Thanks Bill!

llvm-svn: 8928
 2003-10-07 18:46:23 +00:00
Chris Lattner
edb06ce061 Fix bug in previous checkin 
llvm-svn: 8922
 2003-10-07 15:17:02 +00:00
Chris Lattner
e6955c77e0 Minor speedups for the instcombine pass 
llvm-svn: 8894
 2003-10-06 17:11:01 +00:00
Chris Lattner
d1c3f771f8 Change the interface to PromoteMemToReg to also take a DominatorTree 
llvm-svn: 8883
 2003-10-05 21:20:13 +00:00
Chris Lattner
40a236b9ea Initial checkin of the LLVM->LLVM transform to support code generators which 
do not support stack unwinding yet

llvm-svn: 8869
 2003-10-05 19:14:42 +00:00
Chris Lattner
5206a78804 simplify-cfg is really a function pass 
llvm-svn: 8868
 2003-10-05 19:14:16 +00:00
Chris Lattner
059033218b Implement InstCombine/add.ll:test17 & 18 
llvm-svn: 8817
 2003-10-02 15:11:26 +00:00
Chris Lattner
cdf12dfd03 Fix bug: IndVarsSimplify/2003-09-23-NotAtTop.ll 
llvm-svn: 8689
 2003-09-23 20:26:48 +00:00
Misha Brukman
db8303670b Credits now go into the top-level CREDITS.TXT 
llvm-svn: 8662
 2003-09-22 21:57:56 +00:00
Chris Lattner
68f6d33416 Squelch warning 
llvm-svn: 8659
 2003-09-22 20:33:34 +00:00
Chris Lattner
d4de2760aa Rename Function::getEntryNode -> getEntryBlock 
llvm-svn: 8625
 2003-09-20 14:39:18 +00:00
Chris Lattner
7bf15fccb9 Fix a really obvious huge gaping bug, add a comment 
llvm-svn: 8620
 2003-09-20 05:24:00 +00:00
Chris Lattner
bf7dd80e7c Expose the TCE pass 
llvm-svn: 8619
 2003-09-20 05:14:13 +00:00
Chris Lattner
70c9cbd5c6 New transformation: tail recursion elimination 
llvm-svn: 8618
 2003-09-20 05:03:31 +00:00
Chris Lattner
ef92d8eebb Implement InstCombine/and.ll:test(15|16) 
llvm-svn: 8607
 2003-09-19 19:05:02 +00:00
Chris Lattner
b8d0545d27 pull a large nested conditional out into its own function 
llvm-svn: 8605
 2003-09-19 17:17:26 +00:00
Chris Lattner
219dd8b23d Implement InstCombine/add.ll:test(15|16) 
llvm-svn: 8604
 2003-09-19 15:35:42 +00:00
Chris Lattner
3a26b0d3be Make sure to cannonicalize loops before running indvar simplify 
llvm-svn: 8502
 2003-09-12 16:45:01 +00:00
Chris Lattner
f277240919 Do not return success after checking only the FIRST USE of a gep instruction. 
Instead, check all uses.
This fixes bug: ScalarRepl/2003-09-12-IncorrectPromote.ll
This also fixes the miscompilation of Ptrdist/bc

llvm-svn: 8493
 2003-09-12 16:02:12 +00:00
Chris Lattner
b12390cc41 Minor optimization efficiency improvement: 
- Run mem2reg promotion first
  - Only rerun passes if the previous thing changed something

llvm-svn: 8490
 2003-09-12 15:36:03 +00:00
Chris Lattner
9036a399f1 Simplify code 
Implement InstCombine/mul.ll:test9

llvm-svn: 8488
 2003-09-11 22:24:54 +00:00
Misha Brukman
ddbf126a18 Apostrophes are only used for possession and quoting. 
llvm-svn: 8473
 2003-09-11 16:58:31 +00:00
Chris Lattner
8a901c4d27 Integrate functionality of the mem2reg pass directly into this pass to make 
the combination more effective

llvm-svn: 8471
 2003-09-11 16:45:55 +00:00
Chris Lattner
3d39abeeb7 Renamed DominatorTree::Node::getNode() -> getBlock() 
llvm-svn: 8469
 2003-09-11 16:26:13 +00:00