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18754 Commits

Author SHA1 Message Date
Dan Gohman
2e4ac0dea5 This patch extends the LoopUnroll pass to be able to unroll loops 
with unknown trip counts. This is left off by default, and a
command-line option enables it. It also begins to separate loop
unrolling into a utility routine; eventually it might be made usable
from other passes.

It currently works by inserting conditional branches between each
unrolled iteration, unless it proves that the trip count is a
multiple of a constant integer > 1, which it currently only does in
the rare case that the trip count expression is a Mul operator with
a ConstantInt operand. Eventually this information might be provided
by other sources, for example by a pass that peels/splits the loop
for this purpose.

llvm-svn: 36990
 2007-05-11 20:53:41 +00:00
Chris Lattner
3936efb43b fix regressions from my previous checking, including 
Transforms/InstCombine/2006-12-08-ICmp-Combining.ll

llvm-svn: 36989
 2007-05-11 16:58:45 +00:00
Anton Korobeynikov
5754e67b1a Perform correct actions numbers/sizes computation 
llvm-svn: 36988
 2007-05-11 08:47:35 +00:00
Anton Korobeynikov
2d2a44b71f Fix action No calculation in multiple-invoke-one-LP mode 
llvm-svn: 36987
 2007-05-11 08:23:57 +00:00
Chris Lattner
f7adc33cbd fix Transforms/InstCombine/2007-05-10-icmp-or.ll 
llvm-svn: 36984
 2007-05-11 05:55:56 +00:00
Chris Lattner
b601311b07 fix a memory leak 
llvm-svn: 36981
 2007-05-11 00:43:26 +00:00
Chris Lattner
044aaca356 Fix a bug where the bcreader could crash on .bc files that were an exact 
multiple of the page size, due to a bug in MappedFile

llvm-svn: 36980
 2007-05-11 00:00:27 +00:00
Dale Johannesen
2f28ffc5fd Do not generate branches to entry block. This fixes several test suite 
failures on PPC (can happen only when prologue code is null)

llvm-svn: 36979
 2007-05-10 23:59:23 +00:00
Anton Korobeynikov
5ba99a95e8 Ooops. Some debugging stuff :) 
llvm-svn: 36978
 2007-05-10 22:38:46 +00:00
Anton Korobeynikov
0a29b65e0c Allow multiple invokes per landing pad. This (probably) fixes PR1410. 
llvm-svn: 36977
 2007-05-10 22:34:59 +00:00
Duncan Sands
828ef09f10 Later computations assume we are aligned at this point. 
llvm-svn: 36975
 2007-05-10 18:40:24 +00:00
Anton Korobeynikov
a25bb3a0ff TypeIds are indexed by j, not i 
llvm-svn: 36974
 2007-05-10 15:10:34 +00:00
Dale Johannesen
4f9661688c Make tail merging handle many more cases (all it can, I think). 
llvm-svn: 36966
 2007-05-10 01:01:49 +00:00
Chris Lattner
96e9e88590 add some notes 
llvm-svn: 36965
 2007-05-10 00:08:04 +00:00
Evan Cheng
649f25dad1 Can't fold the bit_convert is the store is a truncating store. 
llvm-svn: 36962
 2007-05-09 21:49:47 +00:00
Anton Korobeynikov
4423f1a3fd Do not assert, when case range split metric is zero and JTs are not allowed: just emit binary tree in this case. This 
fixes PR1403.

llvm-svn: 36959
 2007-05-09 20:07:08 +00:00
Devang Patel
1f12d0b50c Fix PR1333 
Testcases :
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049451.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049452.html

llvm-svn: 36955
 2007-05-09 08:24:12 +00:00
Evan Cheng
73abcaa525 Switch BCC, MOVCCr, etc. to PredicateOperand. 
llvm-svn: 36948
 2007-05-08 21:08:43 +00:00
Evan Cheng
4dd52e052f PredicateOperand can be used as a normal operand for isel. 
llvm-svn: 36947
 2007-05-08 21:06:08 +00:00
Bill Wendling
a5f8cb0805 Change names from RA to something unique to get rid of naming conflicts with 
certain linkers...

llvm-svn: 36944
 2007-05-08 19:02:46 +00:00
Evan Cheng
855b26b72e Eliminate MarkVirtRegAliveInBlock recursion. 
llvm-svn: 36943
 2007-05-08 19:00:00 +00:00
Evan Cheng
6a0b99b9f8 R0 is a sub-register of X0, etc. 
llvm-svn: 36939
 2007-05-08 17:03:51 +00:00
Dan Gohman
7459c19c81 Fix various whitespace inconsistencies. 
llvm-svn: 36936
 2007-05-08 15:19:19 +00:00
Dan Gohman
e9789171b0 Correct the comment for ApproximateLoopSize to reflect what it actually does. 
llvm-svn: 36935
 2007-05-08 15:14:19 +00:00
Chris Lattner
062b15b7cc Make a preemptive bitcode format change to support PR1146. This lets us do 
pr1146 in llvm 2.1 without ugly code to emulate old behavior.  This should
be merged into the 2.0 release branch.

llvm-svn: 36928
 2007-05-08 05:38:01 +00:00
Dale Johannesen
842aef302e Don't generate branch to entry block. 
llvm-svn: 36917
 2007-05-08 01:01:04 +00:00
Lauro Ramos Venancio
4f648c68cd Fix PR1390 in a better way. 
llvm-svn: 36916
 2007-05-07 23:15:16 +00:00
Evan Cheng
e18b87868d Forgot a check. 
llvm-svn: 36910
 2007-05-07 21:36:06 +00:00
Evan Cheng
a949d165ee This is no longer needed after enabling the DAG combiner xform. 
llvm-svn: 36909
 2007-05-07 21:29:41 +00:00
Evan Cheng
18d994d6d6 Enable a couple of xforms: 
- (store (bitconvert v)) -> (store v) if resultant store does not require
higher alignment
- (bitconvert (load v)) -> (load (bitconvert*)v) if resultant load does not
require higher alignment

llvm-svn: 36908
 2007-05-07 21:27:48 +00:00
Dale Johannesen
c884abe112 Handle some non-exit blocks in tail merging. 
llvm-svn: 36907
 2007-05-07 20:57:21 +00:00
Duncan Sands
20a9ed0e20 Parameter attributes on invoke calls were being lost due to the wrong 
attribute index being used.  Fix proposed by Anton Korobeynikov, who
asked me to implement and commit it for him.  This is PR1398.

llvm-svn: 36906
 2007-05-07 20:49:28 +00:00
Jeff Cohen
2e8263c013 Unbreak VC++ build. 
llvm-svn: 36901
 2007-05-07 15:21:46 +00:00
Chris Lattner
112d26a164 Enhance MemoryBuffer to return error messages in strings if they occur. 
llvm-svn: 36899
 2007-05-06 23:32:36 +00:00
Chris Lattner
8e9063c571 Fix PR1395, by passing the ID correctly 
llvm-svn: 36894
 2007-05-06 23:13:56 +00:00
Chris Lattner
50214d1447 add this back 
llvm-svn: 36892
 2007-05-06 20:31:17 +00:00
Anton Korobeynikov
3765489a61 Detabify 
llvm-svn: 36891
 2007-05-06 20:14:21 +00:00
Anton Korobeynikov
dda2087b65 Update MSIL BE. This patch fixes most weird glitches outlined in 
README.txt. Patch by Roman Samoilov!

llvm-svn: 36890
 2007-05-06 20:13:33 +00:00
Chris Lattner
c38f488a16 lib/Bytecode is dead 
llvm-svn: 36889
 2007-05-06 19:51:20 +00:00
Chris Lattner
540930c18f move this to lib/Archive 
llvm-svn: 36888
 2007-05-06 19:50:53 +00:00
Chris Lattner
d44d4aa93f build lib/Archive instead of lib/Bytecode 
llvm-svn: 36887
 2007-05-06 19:50:06 +00:00
Chris Lattner
5fc47d5385 adjust this to live in lib/Archive 
llvm-svn: 36886
 2007-05-06 19:49:28 +00:00
Chris Lattner
37e8034ef8 remove bytecode reader 
llvm-svn: 36882
 2007-05-06 19:42:57 +00:00
Chris Lattner
a5a46fd5f3 remove the old bc writer 
llvm-svn: 36881
 2007-05-06 19:33:40 +00:00
Chris Lattner
6056636de8 fix off-by-one that caused the llvm2cpp test to fail 
llvm-svn: 36880
 2007-05-06 19:27:46 +00:00
Chris Lattner
dc7a11940e Flush the file after writing bitcode so that clients who don't close their 
ofstreams will be ok.

llvm-svn: 36878
 2007-05-06 19:19:23 +00:00
Chris Lattner
4dca43cc6d remove this file for now, we can bring it back from cvs if we need it in 
the future (and integrate it with membuffer, etc)

llvm-svn: 36876
 2007-05-06 19:10:47 +00:00
Chris Lattner
71eb8d5e89 remove libbzip2, it is dead 
llvm-svn: 36875
 2007-05-06 19:05:34 +00:00
Nick Lewycky
c2306ff5b4 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Chris Lattner
5bd1b5b32d don't build bzip2 for now 
llvm-svn: 36871
 2007-05-06 09:31:32 +00:00