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Author SHA1 Message Date
Ted Kremenek
75627d3d2e Performance optimization on ImmutableMap/ImmutableSet: 
- Use a DenseSet instead of a FoldingSet to cache
canonicalized nodes.  This reduces the overhead
of double-hashing.

- Use reference counts in ImutAVLTree to much
more aggressively recover tree nodes that are
no longer usable.  We can generate many
transient nodes while using add() and remove()
on ImmutableSet/ImmutableMaps to generate a final
set/map.

For the clang static analyzer (the main client
of these data structures), this results in
a slight speedup (0.5%) when analyzing sqlite3,
but much more importantly results in a 30-60%
reduction in peak memory usage when the analyzer
is analyzing a given function in a file.  On
average that's about a ** 44% reduction ** in the
memory footprint of the static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120459 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 20:26:45 +00:00
Dale Johannesen
f619b5a665 Avoid exponential growth of a table. It feels like 
there should be a better way to do this.  PR 8679.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 20:23:21 +00:00
Owen Anderson
c7373f8158 Provide Thumb2 encodings for a few miscellaneous instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 20:00:01 +00:00
Chris Lattner
83d6759403 various cleanups and code simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:48:15 +00:00
Chris Lattner
e3c611085e make getPointerSize a static function. Add ivars to DSE for 
AA and MD pass info instead of using getAnalysis<> all over.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:34:42 +00:00
Chris Lattner
9801651193 reduce indentation, clean up TD use a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:28:23 +00:00
Jim Grosbach
c02ba66d41 Add FIXME 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:25:56 +00:00
Chris Lattner
558f5d2a39 forbid rtti and exceptions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:20:40 +00:00
Owen Anderson
0e1bcdf4f7 Add encoding support for Thumb2 PLD and PLI instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:19:31 +00:00
Eric Christopher
06a86da323 Noticed this on inspection, fix and update some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:14:07 +00:00
Chris Lattner
55ee75d571 enhance isRemovable to refuse to delete volatile mem transfers 
now that DSE hacks on them.  This fixes a regression I introduced,
by generalizing DSE to hack on transfers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:12:10 +00:00
Jim Grosbach
12822af16a The VLDMQ/VSTMQ instructions are reprented as true Pseudo-insts now (i.e., 
no extra encoding information), so we no longer need to special case them
here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:08:32 +00:00
Jim Grosbach
37cc2f121d Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:00:13 +00:00
Jim Grosbach
2e812e1635 Pseudo-ize ARM MOVPCRX 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120442 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:56:36 +00:00
Jim Grosbach
b6e1e67b80 Delete a few no longer needed references to pseudos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:56:13 +00:00
Cameron Zwarich
7285105922 Change the basic block map in LoopInfo from a std::map to a DenseMap. This is a 16% speedup running loops on test-suite + SPEC2000. 
Reviewed by Eric Christopher.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:51:19 +00:00
Owen Anderson
eb05a8d250 Provide encodings for a few more load/store variants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:38:28 +00:00
Jim Grosbach
a0d2c8a40f Pseudo-ize BX_CALL and friends. Remove dead instruction format classes. 
rdar://8685712

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:30:19 +00:00
Owen Anderson
7f2abbf268 Add tests for more forms of Thumb2 loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:15:21 +00:00
Chris Lattner
de189be53f add TLI support indicating that jumps are more expensive than logical operations 
and use this to disable a specific optimization.  Patch by Micah Villmow!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:12:52 +00:00
Che-Liang Chiou
21d8b9bcad ptx: add command-line options for gpu target and ptx version 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120423 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 10:14:14 +00:00
Eric Christopher
c459d06ae6 Not all platforms use _<func>. Duh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120418 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 09:23:54 +00:00
Eric Christopher
fc967c9927 Fix some grammar in comments I noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 09:11:54 +00:00
Eric Christopher
7f216bac5d This defaults to GenericDomain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120415 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 09:11:07 +00:00
Jay Foad
a99793c5ea PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 09:02:01 +00:00
Eric Christopher
d872f144e2 Implement a PseudoI class and transfer the sse instructions over to use 
it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 08:57:23 +00:00
Eric Christopher
41c902fdbe Fix insertion point in pcmp expander. 
While I'm there, clean up too many \n even for me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 08:20:21 +00:00
Eric Christopher
82be220092 Fix some cleanups from my last patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 08:10:28 +00:00
Bill Wendling
ef4a68badb Add parsing for the Thumb t_addrmode_s4 addressing mode. This can almost 
certainly be made more generic. But it does allow us to parse something like:

          ldr     r3, [r2, r4]

correctly in Thumb mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:44:32 +00:00
Che-Liang Chiou
3f8e617891 ptx: add ld instruction 
support register and register-immediate addressing mode

todo: immediate and register-register addressing mode



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120407 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:34:44 +00:00
Chris Lattner
cf82dc376a Rewrite the main DSE loop to be written in terms of reasoning 
about pairs of AA::Location's instead of looking for MemDep's
"Def" predicate.  This is more powerful and general, handling
memset/memcpy/store all uniformly, and implementing PR8701 and
probably obsoleting parts of memcpyoptimizer.

This also fixes an obscure bug with init.trampoline and i8
stores, but I'm not surprised it hasn't been hit yet.  Enhancing
init.trampoline to carry the size that it stores would allow
DSE to be much more aggressive about optimizing them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120406 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:23:21 +00:00
Chris Lattner
c413330c99 death to extraneous \n's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:20:51 +00:00
Eric Christopher
228232b282 Rewrite mwait and monitor support and custom lower arguments. 
Fixes PR8573.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:20:12 +00:00
Anders Carlsson
303023d9ff Add a puts optimization that converts puts() to putchar('\n'). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 06:19:18 +00:00
Anders Carlsson
1d06295583 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 06:03:55 +00:00
Anders Carlsson
2703399041 Rename this test to FPuts.ll since it actually tests fputs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120393 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 05:59:26 +00:00
Chris Lattner
bbdc3703a3 rename a function and reduce some indentation, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120391 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 05:30:45 +00:00
Nick Lewycky
29b6cb40c1 Make @llvm.invariant.start not be readonly, so that it has side-effects. This 
unbreaks test/Transforms/InstCombine/invariant.ll which was broken by r120382.
This is a fix-forward to do what I think Chris intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120388 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 04:13:41 +00:00
Jakob Stoklund Olesen
bb7b23f5b7 Stub out a new LiveDebugVariables pass. 
This analysis is going to run immediately after LiveIntervals. It will stay
alive during register allocation and keep track of user variables mentioned in
DBG_VALUE instructions.

When the register allocator is moving values between registers and the stack, it
is very hard to keep track of DBG_VALUE instructions. We usually get it wrong.
This analysis maintains a data structure that makes it easy to update DBG_VALUE
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120385 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 02:17:10 +00:00
Chris Lattner
d7b6a989a7 remove a use of llvm-dis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 02:04:15 +00:00
Chris Lattner
d6f02d1fff remove the pointless check of MemoryUseIntrinsic from 
is trivially dead, since these have side effects.  This makes the
(misnamed) MemoryUseIntrinsic class dead, so remove it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 02:03:47 +00:00
Chris Lattner
12bf43bc4f strength reduce this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:56:13 +00:00
Chris Lattner
9dc9e81aa7 getLocationForDest should work for memset as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:48:20 +00:00
Chris Lattner
72987a2742 rename doesClobberMemory -> hasMemoryWrite to be more specific, and 
remove an actively-wrong comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120378 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:37:52 +00:00
Chris Lattner
1ab4285b72 clean up handling of 'free', detangling it from everything else. 
It can be seriously improved, but at least now it isn't intertwined
with the other logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:28:33 +00:00
Chris Lattner
feea8fb6b4 merge one more away 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:06:43 +00:00
Chris Lattner
8a2dc0233f I already merged partial-overwrite.ll -> PartialStore.ll 
Merge context-sensitive.ll -> simple.ll and upgrade it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120374 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:05:07 +00:00
Chris Lattner
75aa30bb1c clean up DSE tests, removing some poorly reduced and useless old test, 
merging more into other larger .ll files, filecheckizing along the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:00:34 +00:00
Bill Wendling
0e45a5a901 Minor cleanups. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:50:22 +00:00
Bill Wendling
6e46d84eea s/ARM::BRIND/ARM::BX/g to coincide with r120366. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:48:15 +00:00