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Author SHA1 Message Date
Chris Lattner
3512297c58 make getPointerSize a static function. Add ivars to DSE for 
AA and MD pass info instead of using getAnalysis<> all over.

llvm-svn: 120453
 2010-11-30 19:34:42 +00:00
Chris Lattner
7ae2f179c6 reduce indentation, clean up TD use a bit. 
llvm-svn: 120452
 2010-11-30 19:28:23 +00:00
Jim Grosbach
532d63789b Add FIXME 
llvm-svn: 120451
 2010-11-30 19:25:56 +00:00
Chris Lattner
227a4ee15a forbid rtti and exceptions 
llvm-svn: 120450
 2010-11-30 19:20:40 +00:00
Owen Anderson
5f7b3e919b Add encoding support for Thumb2 PLD and PLI instructions. 
llvm-svn: 120449
 2010-11-30 19:19:31 +00:00
Eric Christopher
95f0d1fe65 Noticed this on inspection, fix and update some comments. 
llvm-svn: 120447
 2010-11-30 19:14:07 +00:00
Chris Lattner
41b6b286a3 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.

llvm-svn: 120445
 2010-11-30 19:12:10 +00:00
Jim Grosbach
7ae5c75ab7 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.

llvm-svn: 120444
 2010-11-30 19:08:32 +00:00
Jim Grosbach
6a976d0827 Tidy up. 
llvm-svn: 120443
 2010-11-30 19:00:13 +00:00
Jim Grosbach
aa96c057be Pseudo-ize ARM MOVPCRX 
llvm-svn: 120442
 2010-11-30 18:56:36 +00:00
Jim Grosbach
d79a0ce6e7 Delete a few no longer needed references to pseudos. 
llvm-svn: 120441
 2010-11-30 18:56:13 +00:00
Cameron Zwarich
88bfbeb5cc 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.

llvm-svn: 120440
 2010-11-30 18:51:19 +00:00
Owen Anderson
6581027075 Provide encodings for a few more load/store variants. 
llvm-svn: 120439
 2010-11-30 18:38:28 +00:00
Jim Grosbach
cb8193b99e Pseudo-ize BX_CALL and friends. Remove dead instruction format classes. 
rdar://8685712

llvm-svn: 120438
 2010-11-30 18:30:19 +00:00
Owen Anderson
e2a8781847 Add tests for more forms of Thumb2 loads and stores. 
llvm-svn: 120436
 2010-11-30 18:15:21 +00:00
Chris Lattner
f541629573 add TLI support indicating that jumps are more expensive than logical operations 
and use this to disable a specific optimization.  Patch by Micah Villmow!

llvm-svn: 120435
 2010-11-30 18:12:52 +00:00
Che-Liang Chiou
f594fe5fc5 ptx: add command-line options for gpu target and ptx version 
llvm-svn: 120423
 2010-11-30 10:14:14 +00:00
Eric Christopher
990bcd83b8 Not all platforms use _<func>. Duh. 
llvm-svn: 120418
 2010-11-30 09:23:54 +00:00
Eric Christopher
1a99e7ebdb Fix some grammar in comments I noticed. 
llvm-svn: 120416
 2010-11-30 09:11:54 +00:00
Eric Christopher
d8e045d29e This defaults to GenericDomain. 
llvm-svn: 120415
 2010-11-30 09:11:07 +00:00
Jay Foad
c663d7e4f6 PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
llvm-svn: 120413
 2010-11-30 09:02:01 +00:00
Eric Christopher
6a21ceab5c Implement a PseudoI class and transfer the sse instructions over to use 
it.

llvm-svn: 120412
 2010-11-30 08:57:23 +00:00
Eric Christopher
73365ae8b6 Fix insertion point in pcmp expander. 
While I'm there, clean up too many \n even for me.

llvm-svn: 120411
 2010-11-30 08:20:21 +00:00
Eric Christopher
2170738538 Fix some cleanups from my last patch. 
llvm-svn: 120410
 2010-11-30 08:10:28 +00:00
Bill Wendling
ae920bcc50 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.

llvm-svn: 120408
 2010-11-30 07:44:32 +00:00
Che-Liang Chiou
df20cec4fb ptx: add ld instruction 
support register and register-immediate addressing mode

todo: immediate and register-register addressing mode
llvm-svn: 120407
 2010-11-30 07:34:44 +00:00
Chris Lattner
7d444d0682 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.

llvm-svn: 120406
 2010-11-30 07:23:21 +00:00
Chris Lattner
31d8d00187 death to extraneous \n's. 
llvm-svn: 120405
 2010-11-30 07:20:51 +00:00
Eric Christopher
f27f0b5234 Rewrite mwait and monitor support and custom lower arguments. 
Fixes PR8573.

llvm-svn: 120404
 2010-11-30 07:20:12 +00:00
Anders Carlsson
67e9e6234c Add a puts optimization that converts puts() to putchar('\n'). 
llvm-svn: 120398
 2010-11-30 06:19:18 +00:00
Anders Carlsson
2a46a03898 Fix a typo. 
llvm-svn: 120394
 2010-11-30 06:03:55 +00:00
Anders Carlsson
a2ad88fb73 Rename this test to FPuts.ll since it actually tests fputs. 
llvm-svn: 120393
 2010-11-30 05:59:26 +00:00
Chris Lattner
bf17250f9b rename a function and reduce some indentation, no functionality change. 
llvm-svn: 120391
 2010-11-30 05:30:45 +00:00
Nick Lewycky
87f97b60f8 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.

llvm-svn: 120388
 2010-11-30 04:13:41 +00:00
Jakob Stoklund Olesen
59dfcec5f9 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.

llvm-svn: 120385
 2010-11-30 02:17:10 +00:00
Chris Lattner
bea813875e remove a use of llvm-dis 
llvm-svn: 120383
 2010-11-30 02:04:15 +00:00
Chris Lattner
0ec89ea5d9 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.

llvm-svn: 120382
 2010-11-30 02:03:47 +00:00
Chris Lattner
84d3d220c1 strength reduce this. 
llvm-svn: 120381
 2010-11-30 01:56:13 +00:00
Chris Lattner
cbe6b88afe getLocationForDest should work for memset as well. 
llvm-svn: 120380
 2010-11-30 01:48:20 +00:00
Chris Lattner
a4863c7557 rename doesClobberMemory -> hasMemoryWrite to be more specific, and 
remove an actively-wrong comment.

llvm-svn: 120378
 2010-11-30 01:37:52 +00:00
Chris Lattner
76977cd3c8 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.

llvm-svn: 120377
 2010-11-30 01:28:33 +00:00
Chris Lattner
56b0cc6974 merge one more away 
llvm-svn: 120375
 2010-11-30 01:06:43 +00:00
Chris Lattner
8e2909e4d8 I already merged partial-overwrite.ll -> PartialStore.ll 
Merge context-sensitive.ll -> simple.ll and upgrade it.

llvm-svn: 120374
 2010-11-30 01:05:07 +00:00
Chris Lattner
496eacefab clean up DSE tests, removing some poorly reduced and useless old test, 
merging more into other larger .ll files, filecheckizing along the way.

llvm-svn: 120373
 2010-11-30 01:00:34 +00:00
Bill Wendling
a3cc011fc5 Minor cleanups. No functional change. 
llvm-svn: 120372
 2010-11-30 00:50:22 +00:00
Bill Wendling
5030f8359b s/ARM::BRIND/ARM::BX/g to coincide with r120366. 
llvm-svn: 120371
 2010-11-30 00:48:15 +00:00
Chris Lattner
083731f3d6 enhance basicaa to return "Mod" for a memcpy call when the 
queried location doesn't overlap the source, and add a testcase.

llvm-svn: 120370
 2010-11-30 00:43:16 +00:00
Bill Wendling
6bcbf9bd7c Add correct encoding for "bl __aeabi_read_tp". However, the asm matcher isn't 
able to match this yet.

llvm-svn: 120369
 2010-11-30 00:34:08 +00:00
Chris Lattner
8ec1830a01 Teach basicaa that memset's modref set is at worst "mod" and never 
contains "ref".

Enhance DSE to use a modref query instead of a store-specific hack
to generalize the "ignore may-alias stores" optimization to handle
memset and memcpy.

llvm-svn: 120368
 2010-11-30 00:28:45 +00:00
Jim Grosbach
6c0221e3ae Rename BX/BRIND/etc patterns to clarify which is actually the BX instruction 
and which are pseudos.

llvm-svn: 120366
 2010-11-30 00:24:05 +00:00