Chris Lattner
3bbec59e8b
refactor a bunch of code out of visitICmpInstWithInstAndIntCst into its own
...
routine.
llvm-svn: 37679
2007-06-20 23:46:26 +00:00
Owen Anderson
06c1e585c9
Split runOnFunction into many smaller functions. This make it easier to get accurate performance analysis of GVNPRE.
...
llvm-svn: 37678
2007-06-20 22:10:02 +00:00
Owen Anderson
b0714bb7bb
Make GVNPRE accurate report whether it modified the function or not.
...
llvm-svn: 37673
2007-06-20 18:30:20 +00:00
Owen Anderson
7b0fb44ca9
Get rid of an unneeded helper function.
...
llvm-svn: 37670
2007-06-20 00:43:33 +00:00
Owen Anderson
1ad2c10215
Use a DenseMap instead of an std::map for the value numbering. This reduces the time to optimize lencod on a PPC Debug build from ~300s to ~140s.
...
llvm-svn: 37668
2007-06-19 23:23:54 +00:00
Owen Anderson
2320d430bd
Make dependsOnInvoke much more specific in what it tests, which in turn make it much faster to run. This reduces the time to optimize lencondwith a debug build on PPC from ~450s to ~300s.
...
llvm-svn: 37667
2007-06-19 23:07:16 +00:00
Tanya Lattner
c655839d71
Moved Inliner.h to include/llvm/Transforms/IPO/InlinerPass.h
...
llvm-svn: 37666
2007-06-19 22:31:52 +00:00
Tanya Lattner
ab11b1c702
Inliner pass header file was moved.
...
llvm-svn: 37665
2007-06-19 22:29:50 +00:00
Dan Gohman
32f53bbd85
Rename ScalarEvolution::deleteInstructionFromRecords to
...
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.
llvm-svn: 37657
2007-06-19 14:28:31 +00:00
Owen Anderson
1370faf889
Handle constants in phi nodes properly. This fixes test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll
...
llvm-svn: 37655
2007-06-19 07:35:36 +00:00
Chris Lattner
09a33a4f64
silence a bogus warning Duraid ran into.
...
llvm-svn: 37649
2007-06-19 05:43:49 +00:00
Owen Anderson
91c54950b3
Be careful to erase values from all of the appropriate sets when they're not needed anymore. This fixes a few more memory-related issues.
...
llvm-svn: 37647
2007-06-19 05:37:32 +00:00
Owen Anderson
b9cbaed623
Remember to clear the maximal sets between functions.
...
Thanks to Nicholas for valgrinding this.
llvm-svn: 37646
2007-06-19 04:32:55 +00:00
Owen Anderson
b56fba0c5a
Refactor GVNPRE to use a much smart method of uniquing value sets, and centralize a lot of the value numbering information. No functionality change.
...
llvm-svn: 37645
2007-06-19 03:31:41 +00:00
Owen Anderson
dd998e1913
Cache the results of dependsOnInvoke()
...
llvm-svn: 37622
2007-06-18 04:42:29 +00:00
Owen Anderson
f1c04e1ddb
Fix indentation.
...
llvm-svn: 37621
2007-06-18 04:31:21 +00:00
Owen Anderson
b364b413af
Don't perform an expensive check if it's not necessary.
...
llvm-svn: 37620
2007-06-18 04:30:44 +00:00
Owen Anderson
658f2c4881
Fix test/Transforms/GVNPRE/2007-06-15-InvokeInst.ll by ignoring all instructions that depend on invokes.
...
llvm-svn: 37610
2007-06-16 00:26:54 +00:00
Dan Gohman
203a035251
Use SCEVConstant::get instead of SCEVUnknown::get to create an
...
integer constant SCEV.
llvm-svn: 37596
2007-06-15 18:00:55 +00:00
Owen Anderson
acaed06827
Fix test/Transforms/GVNPRE/2007-06-15-Looping.ll
...
llvm-svn: 37595
2007-06-15 17:55:15 +00:00
Dan Gohman
cb9e09ad57
Add a SCEV class and supporting code for sign-extend expressions.
...
This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.
llvm-svn: 37591
2007-06-15 14:38:12 +00:00
Chris Lattner
373389260f
Generalize many transforms to work on ~ of vectors in addition to ~ of
...
integer ops. This implements Transforms/InstCombine/and-or-not.ll
test3/test4, and finishes off PR1510
llvm-svn: 37589
2007-06-15 06:23:19 +00:00
Chris Lattner
481e28b1f5
Implement two xforms:
...
1. ~(~X | Y) === (X & ~Y)
2. (A|B) & ~(A&B) -> A^B
This allows us to transform ~(~(a|b) | (a&b)) -> a^b.
This implements PR1510 for scalar values.
llvm-svn: 37584
2007-06-15 05:58:24 +00:00
Chris Lattner
f14e5175ed
delete some obviously dead vector operations, which deletes a few thousand
...
operations from Duraids example.
llvm-svn: 37582
2007-06-15 05:26:55 +00:00
Owen Anderson
4036ad485f
Fix test/Transforms/GVNPRE/2007-06-12-PhiTranslate.ll
...
llvm-svn: 37564
2007-06-12 22:43:57 +00:00
Owen Anderson
4276984012
Refactor some code, and fix test/Transforms/GVNPRE/2007-06-12-NoExit.ll by being more careful when using
...
post-dominator information.
llvm-svn: 37556
2007-06-12 16:57:50 +00:00
Dale Johannesen
edfec0b515
Sink CmpInst's to their uses to reduce register pressure.
...
llvm-svn: 37554
2007-06-12 16:50:17 +00:00
Owen Anderson
a75dd4dc56
Fix a few more bugs, including an instance of walking in reverse topological rather than topological order. This
...
fixes a testcase extracted from llvm-test.
llvm-svn: 37550
2007-06-12 00:50:47 +00:00
Devang Patel
78b9c68164
Add and use DominatorTreeBase::findNearestCommonDominator().
...
llvm-svn: 37545
2007-06-11 23:31:22 +00:00
Devang Patel
536ac4dca7
Simplify.
...
llvm-svn: 37542
2007-06-11 21:45:31 +00:00
Devang Patel
d18054afcf
simplify
...
llvm-svn: 37541
2007-06-11 21:25:31 +00:00
Devang Patel
ab2eee89a4
Simplify. Dominator Tree is required so always available.
...
llvm-svn: 37540
2007-06-11 21:18:00 +00:00
Owen Anderson
d184c18074
Handle functions with multiple exit blocks properly.
...
llvm-svn: 37539
2007-06-11 16:25:17 +00:00
Owen Anderson
223718c40e
Perform PRE of comparison operators.
...
llvm-svn: 37536
2007-06-09 18:35:31 +00:00
Owen Anderson
7d76b2a774
Collect statistics from GVN-PRE.
...
llvm-svn: 37530
2007-06-08 22:02:36 +00:00
Owen Anderson
b232efaf48
Fix typo in a comment.
...
llvm-svn: 37526
2007-06-08 20:57:08 +00:00
Owen Anderson
55994f2453
Fix a bug that was causing the elimination phase not to replace values when it should be.
...
With this patch, GVN-PRE now correctly optimizes the example from the thesis.
Many thanks to Daniel Berlin for helping me find errors in this.
llvm-svn: 37525
2007-06-08 20:44:02 +00:00
Owen Anderson
2e5efc30c2
Small bugfix, and const-ify some methods (Thanks, Bill).
...
llvm-svn: 37513
2007-06-08 01:52:45 +00:00
Devang Patel
becc466451
Update LoopSimplify to require and preserve DominatorTree only.
...
Now LoopSimplify does not require nor preserve ETForest.
llvm-svn: 37512
2007-06-08 01:50:32 +00:00
Owen Anderson
be80240b29
Add partial redundancy elimination.
...
llvm-svn: 37510
2007-06-08 01:03:01 +00:00
Devang Patel
8ecffa996a
Do not preserve ETForest.
...
llvm-svn: 37506
2007-06-08 00:02:08 +00:00
Devang Patel
3f4c6fe7e8
Do not require ETForest. Now it is unused by LICM.
...
llvm-svn: 37502
2007-06-07 22:21:15 +00:00
Devang Patel
cf470e5255
Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient.
...
llvm-svn: 37501
2007-06-07 22:17:16 +00:00
Devang Patel
fc7fdef7d2
Use DominatorTree instead of ETForest.
...
This allows faster immediate domiantor walk.
llvm-svn: 37500
2007-06-07 21:57:03 +00:00
Devang Patel
df6355ccf8
Use DominatorTree instead of ETForest.
...
llvm-svn: 37499
2007-06-07 21:42:15 +00:00
Devang Patel
fb582f8dda
Use DominatorTree instead of ETForest.
...
llvm-svn: 37498
2007-06-07 21:35:27 +00:00
Devang Patel
5b8a5516e4
Use DominatorTree instead of ETForest.
...
llvm-svn: 37495
2007-06-07 18:45:06 +00:00
Devang Patel
593e766fb5
Use DominatorTree instead of ETForest.
...
llvm-svn: 37494
2007-06-07 18:40:55 +00:00
Devang Patel
af41e4a192
Maintain ETNode as part of DomTreeNode.
...
This adds redundancy for now.
llvm-svn: 37492
2007-06-07 17:47:21 +00:00
Tanya Lattner
5801c23e05
Formating fixes.
...
llvm-svn: 37491
2007-06-07 17:12:16 +00:00
Tanya Lattner
cb90f1d881
Instruct the inliner to obey the noinline attribute. Add test case.
...
llvm-svn: 37481
2007-06-06 21:59:26 +00:00
Chris Lattner
34404e3247
simplify this code and fix PR1493, now that llvm-gcc3 is dead.
...
llvm-svn: 37478
2007-06-06 20:51:41 +00:00
Lauro Ramos Venancio
368e8872db
Fix PR1499.
...
llvm-svn: 37472
2007-06-06 17:08:48 +00:00
Nick Lewycky
91ed6efc24
Inform ScalarEvolutions that we're deleting Values.
...
This is the obviously correct part of the fix for PR1487.
llvm-svn: 37457
2007-06-06 03:51:56 +00:00
Owen Anderson
634a063c1d
Add simple full redundancy elimination.
...
llvm-svn: 37455
2007-06-06 01:27:49 +00:00
Chris Lattner
1b7b6e76ec
Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll
...
llvm-svn: 37454
2007-06-06 01:23:55 +00:00
Devang Patel
506310d3dd
Avoid non-trivial loop unswitching while optimizing for size.
...
llvm-svn: 37446
2007-06-06 00:21:03 +00:00
Owen Anderson
ddbe430732
Fix a misunderstanding of the algorithm. Really, we should be tracking values
...
and expression separately. We can get around this, however, by only keeping
opaque values in TMP_GEN.
llvm-svn: 37443
2007-06-05 23:46:12 +00:00
Owen Anderson
c84720913a
Don't leak memory.
...
llvm-svn: 37442
2007-06-05 22:11:49 +00:00
Owen Anderson
9b89e4b561
Fix a small bug, some 80 cols violations, and add some more debugging output.
...
llvm-svn: 37436
2007-06-05 17:31:23 +00:00
Dan Gohman
151169df1e
Allow insertelement, extractelement, and shufflevector to be hoisted/sunk
...
by LICM.
llvm-svn: 37435
2007-06-05 16:05:55 +00:00
Bill Wendling
6357bf20fa
Patches by Chuck Rose to unbreak V Studio builds.
...
Thanks Chuck!
llvm-svn: 37428
2007-06-04 23:52:59 +00:00
Devang Patel
b3adb9876a
s/ETNode::getChildren/ETNode::getETNodeChildren/g
...
llvm-svn: 37426
2007-06-04 23:45:02 +00:00
Owen Anderson
3c9d8eef21
Don't use std::set_difference when the two sets are sorted differently. Compute
...
the difference manually instead.
This allows GVNPRE to produce correct analysis for the example in the GVNPRE
paper.
llvm-svn: 37425
2007-06-04 23:34:56 +00:00
Owen Anderson
3df5299f94
Fix a bunch of small bugs, and improve the debugging output significantly.
...
llvm-svn: 37424
2007-06-04 23:28:33 +00:00
Chris Lattner
d7897d40b6
When rebuilding constant structs, make sure to honor the isPacked bit.
...
This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll
llvm-svn: 37423
2007-06-04 22:23:42 +00:00
Owen Anderson
38b6b22a41
Make phi_translate correct.
...
llvm-svn: 37418
2007-06-04 18:05:26 +00:00
Devang Patel
ebc5b96735
s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g
...
llvm-svn: 37415
2007-06-04 16:43:25 +00:00
Devang Patel
a89566aefd
Add basic block level interface to change immediate dominator
...
and create new node.
llvm-svn: 37414
2007-06-04 16:22:33 +00:00
Devang Patel
bdd1aaef10
s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
...
llvm-svn: 37407
2007-06-04 00:32:22 +00:00
Owen Anderson
0eca9aad10
Don't use the custom comparator where it's not necessary.
...
llvm-svn: 37406
2007-06-03 22:02:14 +00:00
Devang Patel
0e8aa7b69a
s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
...
llvm-svn: 37403
2007-06-03 06:26:14 +00:00
Owen Anderson
46499645db
Remove an unused method.
...
llvm-svn: 37402
2007-06-03 05:58:25 +00:00
Owen Anderson
0b68cda302
There's no need to have an Expression class... Value works just as well! This simplifies a lot of code.
...
llvm-svn: 37401
2007-06-03 05:55:58 +00:00
Devang Patel
ac54a62fd2
Insert new instructions in AliasSet.
...
llvm-svn: 37390
2007-06-01 22:15:31 +00:00
Owen Anderson
48e93f2ce9
clean() needs to process things in topological order.
...
llvm-svn: 37389
2007-06-01 22:00:37 +00:00
Owen Anderson
4c89142466
Fix Expression comparison, which in turn fixes a value numbering error.
...
llvm-svn: 37386
2007-06-01 17:34:47 +00:00
Owen Anderson
331bf6a959
Add a topological sort function.
...
llvm-svn: 37376
2007-05-31 22:44:11 +00:00
Owen Anderson
81d156e16f
Attempt to fix up phi_translate.
...
llvm-svn: 37366
2007-05-31 00:42:15 +00:00
Devang Patel
9b3b35d14f
Fix typo.
...
llvm-svn: 37360
2007-05-30 15:29:37 +00:00
Chris Lattner
8767920f20
Fix Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll and the second
...
half of PR1421, by not decimating structs with holes that are the source and
destination of a memcpy.
llvm-svn: 37358
2007-05-30 06:11:23 +00:00
Owen Anderson
4b0c1859fd
Fix a typo
...
llvm-svn: 37350
2007-05-29 23:34:14 +00:00
Owen Anderson
0c4230724c
Re-fix a bug, where I was now being too aggressive.
...
llvm-svn: 37348
2007-05-29 23:26:30 +00:00
Owen Anderson
4a6ec8fb57
Use proper debugging facilities so other people don't have to look at my commented-out
...
debugging lines.
llvm-svn: 37347
2007-05-29 23:15:21 +00:00
Owen Anderson
f11bdc7637
Comment debug code out that I accidentally uncommented last time.
...
llvm-svn: 37346
2007-05-29 22:43:03 +00:00
Owen Anderson
ac83a3e4ff
Add a place where I missed using the maximal set. Note that using the maximal
...
set this way is _SLOW_. Somewhere down the line, I'll look at speeding it up.
llvm-svn: 37345
2007-05-29 22:35:41 +00:00
Owen Anderson
5fba6c19b2
Very first part of a GVN-PRE implementation. It currently performs a bunch of analysis, and nothing more. It is also quite slow for the moment. However,
...
it should give a sense of what's going on.
llvm-svn: 37343
2007-05-29 21:53:49 +00:00
Chris Lattner
80c94a4a04
Fix PR1446 by not scalarrepl'ing giant structures.
...
llvm-svn: 37326
2007-05-24 18:43:04 +00:00
Dan Gohman
30978078bf
Minor comment cleanups.
...
llvm-svn: 37321
2007-05-24 14:36:04 +00:00
Chris Lattner
f79577d314
fix a miscompilation when passing a float through varargs
...
llvm-svn: 37297
2007-05-23 01:17:04 +00:00
Chris Lattner
a655a157a0
Fix Transforms/InstCombine/2007-05-18-CastFoldBug.ll, a bug that devastates
...
objc code due to the way the FE lowers objc message sends.
llvm-svn: 37256
2007-05-19 06:51:32 +00:00
Chris Lattner
e8bd53c36a
Handle negative strides much more optimally. This compiles X86/lsr-negative-stride.ll
...
into:
_t:
movl 8(%esp), %ecx
movl 4(%esp), %eax
cmpl %ecx, %eax
je LBB1_3 #bb17
LBB1_1: #bb
cmpl %ecx, %eax
jg LBB1_4 #cond_true
LBB1_2: #cond_false
subl %eax, %ecx
cmpl %ecx, %eax
jne LBB1_1 #bb
LBB1_3: #bb17
ret
LBB1_4: #cond_true
subl %ecx, %eax
cmpl %ecx, %eax
jne LBB1_1 #bb
jmp LBB1_3 #bb17
instead of:
_t:
subl $4, %esp
movl %esi, (%esp)
movl 12(%esp), %ecx
movl 8(%esp), %eax
cmpl %ecx, %eax
je LBB1_4 #bb17
LBB1_1: #bb.outer
movl %ecx, %edx
negl %edx
LBB1_2: #bb
cmpl %ecx, %eax
jle LBB1_5 #cond_false
LBB1_3: #cond_true
addl %edx, %eax
cmpl %ecx, %eax
jne LBB1_2 #bb
LBB1_4: #bb17
movl (%esp), %esi
addl $4, %esp
ret
LBB1_5: #cond_false
movl %ecx, %edx
subl %eax, %edx
movl %eax, %esi
addl %esi, %esi
cmpl %ecx, %esi
je LBB1_4 #bb17
LBB1_6: #cond_false.bb.outer_crit_edge
movl %edx, %ecx
jmp LBB1_1 #bb.outer
llvm-svn: 37252
2007-05-19 01:22:21 +00:00
Devang Patel
2c30a37a5c
Fix PR1431
...
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll
llvm-svn: 37185
2007-05-17 22:10:15 +00:00
Chris Lattner
66ad6fac2f
selects can also reach here
...
llvm-svn: 37081
2007-05-15 06:42:04 +00:00
Chris Lattner
234f96daa8
Fix Transforms/InstCombine/2007-05-14-Crash.ll
...
llvm-svn: 37057
2007-05-15 00:16:00 +00:00
Dan Gohman
8d40e4d965
Correct a few comments.
...
llvm-svn: 37034
2007-05-14 14:31:17 +00:00
Chris Lattner
cea37beb52
Fix Transforms/GlobalOpt/2007-05-13-Crash.ll
...
llvm-svn: 37020
2007-05-13 21:28:07 +00:00
Chris Lattner
1480e16596
significantly improve debug output of lsr
...
llvm-svn: 36996
2007-05-11 22:40:34 +00:00
Dan Gohman
b5650ebd6a
Fix typos.
...
llvm-svn: 36994
2007-05-11 21:10:54 +00:00
Dan Gohman
2980d9da45
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
600db3eb96
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
Chris Lattner
fe2b44de9f
fix Transforms/InstCombine/2007-05-10-icmp-or.ll
...
llvm-svn: 36984
2007-05-11 05:55:56 +00:00
Devang Patel
9557247412
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
Dan Gohman
2e1f804764
Fix various whitespace inconsistencies.
...
llvm-svn: 36936
2007-05-08 15:19:19 +00:00
Dan Gohman
49d08a57f5
Correct the comment for ApproximateLoopSize to reflect what it actually does.
...
llvm-svn: 36935
2007-05-08 15:14:19 +00:00
Dale Johannesen
86e1dcf530
Don't generate branch to entry block.
...
llvm-svn: 36917
2007-05-08 01:01:04 +00:00
Chris Lattner
3b6f75cb2f
Fix PR1395, by passing the ID correctly
...
llvm-svn: 36894
2007-05-06 23:13:56 +00:00
Nick Lewycky
e7da2d6ac3
Fix typo in comment.
...
llvm-svn: 36873
2007-05-06 13:37:16 +00:00
Chris Lattner
9b35b3e863
Fix a bug in my previous patch
...
llvm-svn: 36857
2007-05-06 07:24:03 +00:00
Chris Lattner
5aa73fe34c
Implement Transforms/InstCombine/cast_ptr.ll
...
llvm-svn: 36809
2007-05-05 22:41:33 +00:00
Chris Lattner
361e981415
wrap long lines
...
llvm-svn: 36807
2007-05-05 22:32:24 +00:00
Chris Lattner
1077d2a30d
Fix Transforms/LoopUnroll/2007-05-05-UnrollMiscomp.ll and PR1385.
...
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
57d89a5a89
make a temporary for *SI, no functionality change.
...
llvm-svn: 36782
2007-05-05 18:36:36 +00:00
Chris Lattner
5c827bda0d
Fix InstCombine/2007-05-04-Crash.ll and PR1384
...
llvm-svn: 36775
2007-05-05 01:59:31 +00:00
Dan Gohman
2bcbd5b7ca
Use IntrinsicInst to test for prefetch instructions, which is ever so
...
slightly nicer than using CallInst with an extra check; thanks Chris.
llvm-svn: 36743
2007-05-04 14:59:09 +00:00
Dan Gohman
3fbb18d1b6
Allow strength reduction to make use of addressing modes for the
...
address operand in a prefetch intrinsic.
llvm-svn: 36713
2007-05-03 23:20:33 +00:00
Devang Patel
8c78a0bff0
Drop 'const'
...
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
e95c6ad802
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
Lauro Ramos Venancio
41223586a2
Fix build error.
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llvm-svn: 36648
2007-05-02 20:37:47 +00:00
Devang Patel
09f162ca6a
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
Anton Korobeynikov
546ea7ea88
Implement review feedback
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llvm-svn: 36564
2007-04-29 18:02:48 +00:00
Anton Korobeynikov
b18f8f85e9
Implement review feedback. Aliasees can be either GlobalValue's or
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bitcasts of them.
llvm-svn: 36537
2007-04-28 13:45:00 +00:00
Chris Lattner
089e35cc57
fix a bug triggered by 403.gcc
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llvm-svn: 36527
2007-04-28 05:27:36 +00:00
Chris Lattner
6e880871e9
Fix several latent bugs in EmitGEPOffset that didn't manifest with its
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previous clients. This fixes MallocBench/gs
llvm-svn: 36525
2007-04-28 04:52:43 +00:00
Chris Lattner
c753800800
uhn zap cvs
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llvm-svn: 36523
2007-04-28 03:50:56 +00:00
Chris Lattner
acbf6a401d
Implement PR1345 and Transforms/InstCombine/bitcast-gep.ll
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llvm-svn: 36521
2007-04-28 00:57:34 +00:00
Chris Lattner
1db224db92
refactor some code relating to pointer cast xforms, pulling it out of the codepath
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for unrelated casts.
llvm-svn: 36511
2007-04-27 17:44:50 +00:00
Zhou Sheng
3178736d50
Using APInt more efficiently.
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llvm-svn: 36475
2007-04-26 16:42:07 +00:00
Devang Patel
d3ccc073a2
Mem2Reg does not need TargetData.
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llvm-svn: 36444
2007-04-25 18:32:35 +00:00
Devang Patel
073be55d8e
Remove unused function argument.
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llvm-svn: 36441
2007-04-25 17:15:20 +00:00
Anton Korobeynikov
a97b694c82
Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part
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will follow.
llvm-svn: 36435
2007-04-25 14:27:10 +00:00
Chris Lattner
827cb98a0a
If an alloca only has two types of uses: 1) reads 2) a memcpy/memmove that
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copies from a constant global, then we can change the reads to read from the
global instead of from the alloca. This eliminates the alloca and the memcpy,
and promotes secondary optimizations (because the loads are now loads from
a constant global).
This is important for a common C idiom:
void foo() {
int A[] = {1,2,3,4,5,6,7,8,9...};
... only reads of A ...
}
For some reason, people forget to mark the array static or const.
This triggers on these multisource benchmarks:
JM/ldecode: block_pos, [3 x [4 x [4 x i32]]]
FreeBench/mason: m, [18 x i32], inlined 4 times
MiBench/office-stringsearch: search_strings, [1332 x i8*]
MiBench/office-stringsearch: find_strings, [1333 x i8*]
Prolangs-C++/city: dirs, [9 x i8*], inlined 4 places
and these spec benchmarks:
177.mesa: message, [8 x [32 x i8]]
186.crafty: bias_rl45, [64 x i32]
186.crafty: diag_sq, [64 x i32]
186.crafty: empty, [9 x i8]
186.crafty: xlate, [15 x i8]
186.crafty: status, [13 x i8]
186.crafty: bdinfo, [25 x i8]
445.gobmk: routines, [16 x i8*]
458.sjeng: piece_rep, [14 x i8*]
458.sjeng: t, [13 x i32], inlined 4 places.
464.h264ref: block8x8_idx, [3 x [4 x [4 x i32]]]
464.h264ref: block_pos, [3 x [4 x [4 x i32]]]
464.h264ref: j_off_tab, [12 x i32]
This implements Transforms/ScalarRepl/memcpy-from-global.ll
llvm-svn: 36429
2007-04-25 06:40:51 +00:00
Chris Lattner
31e5addb67
refactor the SROA code out into its own method, no functionality change.
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llvm-svn: 36426
2007-04-25 05:02:56 +00:00
Owen Anderson
510fefcd8a
Undo my previous changes. Since my approach to this problem is being revised,
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this approach is no longer appropriate.
llvm-svn: 36421
2007-04-25 04:18:54 +00:00
Devang Patel
d3208523b2
Fix
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070423/048376.html
llvm-svn: 36417
2007-04-25 00:37:04 +00:00
Owen Anderson
c24701ed7f
Rollback some changes that adversely affected performance. I'm currently rethinking
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my approach to this, so hopefully I'll find a way to do this without making this slower.
llvm-svn: 36392
2007-04-24 06:40:39 +00:00
Devang Patel
38bc86f057
Fix
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070423/048333.html
llvm-svn: 36380
2007-04-23 22:42:03 +00:00
Owen Anderson
64995e1b3f
Make PredicateSimplifier not use DominatorTree.
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llvm-svn: 36300
2007-04-21 07:38:12 +00:00
Owen Anderson
2965adb849
Fix a comment.
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llvm-svn: 36299
2007-04-21 07:12:44 +00:00
Jeff Cohen
5959f42498
Comment out usage of write() for now.
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llvm-svn: 36287
2007-04-20 22:40:10 +00:00
Devang Patel
83a3adcc3f
Avoid recursion.
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llvm-svn: 36272
2007-04-20 20:04:37 +00:00
Owen Anderson
2da606c757
Move more passes to using ETForest instead of DominatorTree.
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llvm-svn: 36271
2007-04-20 06:27:13 +00:00
Zhou Sheng
aafe4e216e
Make use of ConstantInt::isZero instead of ConstantInt::isNullValue.
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llvm-svn: 36261
2007-04-19 05:39:12 +00:00
Zhou Sheng
82fcf3cb5f
Make the operations of APInt variables more efficient.
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llvm-svn: 36260
2007-04-19 05:35:00 +00:00
Evan Cheng
db9b65d67a
Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap.
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llvm-svn: 36258
2007-04-18 22:39:00 +00:00
Owen Anderson
9421f03959
Revert changes that caused breakage.
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llvm-svn: 36255
2007-04-18 06:46:57 +00:00
Owen Anderson
9a6091dec1
Switch more uses of DominatorTree over to ETForest.
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llvm-svn: 36254
2007-04-18 05:43:13 +00:00
Owen Anderson
550e8db9c7
Use ETForest instead of DominatorTree.
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llvm-svn: 36252
2007-04-18 05:25:43 +00:00
Owen Anderson
fc40d446c9
Use ETForest instead of DominatorTree.
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llvm-svn: 36249
2007-04-18 04:55:33 +00:00
Owen Anderson
08293fd6d1
Use new ETForest accessor.
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llvm-svn: 36248
2007-04-18 04:46:35 +00:00