Dale Johannesen
a263eac5f8
Adjust loop size estimate for full unrolling;
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GEP's don't usually become instructions.
llvm-svn: 69631
2009-04-20 22:19:33 +00:00
Duncan Sands
aee16d4916
Rename getAnalysisToUpdate to getAnalysisIfAvailable.
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llvm-svn: 63198
2009-01-28 13:14:17 +00:00
Daniel Dunbar
5447f9679d
Change create*Pass factory functions to return Pass* instead of
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LoopPass*.
- Although less precise, this means they can be used in clients
without RTTI (who would otherwise need to include LoopPass.h, which
eventually includes things using dynamic_cast). This was the
simplest solution that presented itself, but I am happy to use a
better one if available.
llvm-svn: 58010
2008-10-22 23:32:42 +00:00
Dan Gohman
e1f9be27bc
Tidy up several unbeseeming casts from pointer to intptr_t.
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llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Matthijs Kooijman
7199907f50
Add -unroll-allow-partial command line option that enabled the loop unroller to
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partially unroll a loop when fully unrolling would not fit under the threshold.
Patch by Mikael Lepistö.
llvm-svn: 54160
2008-07-29 13:21:23 +00:00
Devang Patel
6dd6992a45
Preserve dom info.
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llvm-svn: 53089
2008-07-03 07:04:22 +00:00
Dan Gohman
4ada89e819
Use Loop::block_iterator.
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llvm-svn: 52616
2008-06-22 20:18:58 +00:00
Duncan Sands
e77eede842
Bill pointed out that system headers should be
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included after local headers.
llvm-svn: 51187
2008-05-16 09:30:00 +00:00
Duncan Sands
130254e1ff
Use of UINT_MAX requires climits, at least when
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compiling with gcc 4.3.
llvm-svn: 51145
2008-05-15 11:22:50 +00:00
Dan Gohman
4dc39991f8
Split the loop unroll mechanism logic out into a utility function.
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Patch by Matthijs Kooijman!
llvm-svn: 51083
2008-05-14 00:24:14 +00:00
Dan Gohman
bab18cae46
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
Dan Gohman
d4a670284c
Make several variable declarations static.
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llvm-svn: 50696
2008-05-06 01:53:16 +00:00
Nick Lewycky
1f831c0f57
Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
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r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.
llvm-svn: 50265
2008-04-25 16:53:59 +00:00
Owen Anderson
8aaa632351
Revert r49614. As Dan pointed out, some of these aren't correct.
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llvm-svn: 49657
2008-04-14 17:38:21 +00:00
Owen Anderson
b54defaff0
Replace calls of the form V1->setName(V2->getName()) with V1->takeName(V2),
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which is significantly more efficient.
llvm-svn: 49614
2008-04-13 19:15:17 +00:00
Devang Patel
c9c6d88ee5
Add comment.
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llvm-svn: 48567
2008-03-19 23:05:52 +00:00
Devang Patel
7efcb7de6b
Update heuritics that estimates cost of call instructions.
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llvm-svn: 48474
2008-03-17 23:41:20 +00:00
Nick Lewycky
50c8d20ca2
Update the block cloner which fixes bugpoint on code using unwind_to (phew!)
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and also update the cloning interface's major user, the loop optimizations.
llvm-svn: 48088
2008-03-09 05:24:34 +00:00
Anton Korobeynikov
0c5e186924
Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
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llvm-svn: 47367
2008-02-20 11:08:44 +00:00
Nick Lewycky
cd28ef8950
Be more careful modifying the use_list while also iterating through it.
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llvm-svn: 46417
2008-01-27 18:35:00 +00:00
Wojciech Matyjewicz
9ec15f974f
fix typo
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llvm-svn: 45594
2008-01-04 20:02:18 +00:00
Chris Lattner
ad9a6ccb83
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Owen Anderson
43d4a82d4b
Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change.
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llvm-svn: 44348
2007-11-27 03:43:35 +00:00
Devang Patel
963e54c2cf
If a value is incoming from outside the loop then the value does not need remapping and the value is never tracked through LastValueMap.
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llvm-svn: 43728
2007-11-05 19:32:30 +00:00
Chris Lattner
25a8bfdedb
wrap some long lines. Major offenders that are left include
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gvn, gvnpre, dse, and predsimplify. To see these, use:
make check-line-length
llvm-svn: 40738
2007-08-02 16:53:43 +00:00
Dan Gohman
7616b6f30c
Correct a few comments.
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llvm-svn: 37034
2007-05-14 14:31:17 +00:00
Dan Gohman
2e4ac0dea5
This patch extends the LoopUnroll pass to be able to unroll loops
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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
Dan Gohman
7459c19c81
Fix various whitespace inconsistencies.
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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.
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llvm-svn: 36935
2007-05-08 15:14:19 +00:00
Chris Lattner
abff2ede40
Fix Transforms/LoopUnroll/2007-05-05-UnrollMiscomp.ll and PR1385.
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If we have a LCSSA, only modify the input value if the inval was defined
by an instruction in the loop. If defined by something before the loop,
it is still valid.
llvm-svn: 36784
2007-05-05 18:49:57 +00:00
Chris Lattner
fba294126e
make a temporary for *SI, no functionality change.
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llvm-svn: 36782
2007-05-05 18:36:36 +00:00
Devang Patel
cd45427a87
Drop 'const'
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llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162
Use 'static const char' instead of 'static const int'.
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Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e
Do not use typeinfo to identify pass in pass manager.
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llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Devang Patel
7d868316fd
Fix
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html
llvm-svn: 36182
2007-04-16 23:03:45 +00:00
Devang Patel
3a24891f80
Now LoopUnroll is a LoopPass.
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llvm-svn: 34996
2007-03-07 01:38:05 +00:00
Reid Spencer
76f02c5848
Guard against huge loop trip counts in an APInt safe way.
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llvm-svn: 34858
2007-03-02 23:31:34 +00:00
Reid Spencer
8749d297f5
Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
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the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.
llvm-svn: 33939
2007-02-05 23:32:05 +00:00
Chris Lattner
71fe09f397
Switch inliner over to use DenseMap instead of std::map for ValueMap. This
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speeds up the inliner 16%.
llvm-svn: 33801
2007-02-03 00:08:31 +00:00
Chris Lattner
7db51ec161
Adjust #includes to match movement of constant folding code from transformutils to libanalysis.
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llvm-svn: 33680
2007-01-30 23:46:24 +00:00
Chris Lattner
9e7640cf02
Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
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converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
llvm-svn: 32690
2006-12-19 21:40:18 +00:00
Chris Lattner
a531ce882e
Detemplatize the Statistic class. The only type it is instantiated with
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is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Bill Wendling
1b3a86000a
Removed #include <iostream> and replaced with llvm_* streams.
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llvm-svn: 31923
2006-11-26 09:46:52 +00:00
Reid Spencer
4bafa71dc1
For PR786:
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Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.
llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Reid Spencer
d414793dbc
For PR950:
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This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.
llvm-svn: 31063
2006-10-20 07:07:24 +00:00
Owen Anderson
bbfa479f14
Clean up a bit.
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llvm-svn: 29950
2006-08-29 06:10:56 +00:00
Owen Anderson
ee603f511f
Make LoopUnroll fold excessive BasicBlocks. This results in a significant speedup of
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gccas on 252.eon
llvm-svn: 29936
2006-08-28 02:09:46 +00:00
Chris Lattner
a39dcb5377
eliminate RegisterOpt. It does the same thing as RegisterPass.
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llvm-svn: 29925
2006-08-27 22:42:52 +00:00
Owen Anderson
aac2dbf9dd
Fix a crash related to updating Phi nodes in the original header block. This was
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causing a crash in 175.vpr
llvm-svn: 29887
2006-08-25 22:13:55 +00:00
Owen Anderson
0aa48d0522
Implement unrolling of multiblock loops. This significantly improves the
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utility of the LoopUnroll pass.
Also, add a testcase for multiblock-loop unrolling.
llvm-svn: 29859
2006-08-24 21:28:19 +00:00