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Author SHA1 Message Date
Bill Wendling
2cbc9fe837 Inline classes that were used in only one place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 23:16:25 +00:00
Chris Lattner
a04096580a teach DSE to use GetPointerBaseWithConstantOffset to analyze 
may-aliasing stores that partially overlap with different base
pointers.  This implements PR6043 and the non-variable part of
PR8657


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120485 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 23:05:20 +00:00
Bill Wendling
1fd374e9c1 * Add support for encoding t_addrmode_s2 and t_addrmode_s1. They are the same as 
t_addrmode_s4, but with a different scaling factor.

* Encode the Thumb1 load and store instructions. This involved a bit of
  refactoring (hi, Chris! :-). Some of the patterns became dead afterwards and
  were removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120482 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:57:21 +00:00
Owen Anderson
80dd3e0612 Simplify the encoding of reg+/-imm12 values that allow PC-relative encoding. This allows the 
Thumb2 encoding to share code with the ARM encoding, which gets use fixup support for free.
It also allows us to fold away at least one codegen-only pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:45:47 +00:00
Jim Grosbach
97dd28fb89 Fix handling of ARM negative pc-relative fixups for loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:40:36 +00:00
Chris Lattner
ed58a6f96f move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120476 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:25:26 +00:00
Chris Lattner
fcf8d7c73d remove a fixed fixme 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120474 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:18:11 +00:00
Chris Lattner
7c80c15a8b Make DeleteDeadInstruction be a static function, move some code around. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:58:14 +00:00
Eric Christopher
c563ded794 Move X86InstrFPStack.td over to PseudoI as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120470 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:57:32 +00:00
Chris Lattner
d8d35316de switch RemoveAccessedObjects to use AliasAnalysis::Location to simplify 
the code.  We now get accurate sizes on Loads, though it surely doesn't
matter in practice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:47:58 +00:00
Chris Lattner
42cb684f8d two improvements to RemoveAccessedObjects: 
1. if the underlying pointer passed in can be resolved
   to any argument or alloca, then we don't need to scan.
   Previously we would only avoid the scan if the alloca
   or byval was actually considered dead.
2. The dead store processing code is itself completely
   dead and didn't handle volatile stores right anyway,
   so delete it.  This allows simplifying the interface
   to RemoveAccessedObjects.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:38:30 +00:00
Eric Christopher
6bac79deb3 Migrate X86InstrControl.td to use PseudoI and fix a couple of 80-col violations 
while I'm in there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120466 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:37:36 +00:00
Chris Lattner
5fb0fb397c remove the "undead" terminology, which is nonstandard and never 
made sense to me.  We now have a set of dead stack objects, and
they become live when loaded.  Fix a theoretical problem where
we'd pass in the wrong pointer to the alias query.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:32:12 +00:00
Chris Lattner
86dc6c08cf move call handling in handleEndBlock up a bit, and simplify it. 
If the call might read all the allocas, stop scanning early.
Convert a vector to smallvector, shrink SmallPtrSet to 16 instead
of 64 to avoid crazy linear scans.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120463 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 21:18:46 +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
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
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
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
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
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
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
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
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
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
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
Chris Lattner
13815d9d3e enhance basicaa to return "Mod" for a memcpy call when the 
queried location doesn't overlap the source, and add a testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:43:16 +00:00
Bill Wendling
647fea57fd Add correct encoding for "bl __aeabi_read_tp". However, the asm matcher isn't 
able to match this yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120369 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:34:08 +00:00
Chris Lattner
201d1e56bb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:28:45 +00:00
Jim Grosbach
532c2f1d50 Rename BX/BRIND/etc patterns to clarify which is actually the BX instruction 
and which are pseudos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120366 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:24:05 +00:00
Bill Wendling
67077419c6 Add some encoding for the adr instruction. Labels still need to be finished. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120365 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:18:30 +00:00
Owen Anderson
6af50f7dd1 Correct Thumb2 encodings for a much wider range of loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:14:31 +00:00
Chris Lattner
184d1ba738 my previous patch would cause us to start deleting some volatile 
stores, fix and add a testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120363 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:12:39 +00:00
Jim Grosbach
5c86a0a2b5 Make a few more ARM pseudo instructions actually use the PseudoInst base class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120362 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:09:06 +00:00
Bill Wendling
8ca2fd6665 Predicate encoding should be withing {}s. And general cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120361 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:08:20 +00:00
Bill Wendling
194271a76e Predicate encoding should be withing {}s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120360 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:05:25 +00:00
Chris Lattner
0f53f592ad two changes to DSE that shouldn't affect anything: 
1. Don't bother trying to optimize:

lifetime.end(ptr)
store(ptr)

as it is undefined, and therefore shouldn't exist.

2. Move the 'storing a loaded pointer' xform up, simplifying
  the may-aliased store code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120359 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:01:19 +00:00
Bob Wilson
8e0c7b5287 Fix the encoding of VLD4-dup alignment. 
The only reasonable way I could find to do this is to provide an alternate
version of the addrmode6 operand with a different encoding function.  Use it
for all the VLD-dup instructions for the sake of consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120358 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:00:42 +00:00
Bob Wilson
173fb1421a Rename VLDnDUP instructions with double-spaced registers 
in an attempt to make things a little more consistent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120357 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:00:38 +00:00
Bob Wilson
6c4c982f83 Add support for NEON VLD3-dup instructions. 
The encoding for alignment in VLD4-dup instructions is still a work in progress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:00:35 +00:00
Jim Grosbach
e76473d9ba Simplify definitions of the ARM eh.sjlj.*jmp pseudo instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:51:31 +00:00
Jim Grosbach
6e4221153b Parameterize ARMPseudoInst size property. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120353 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:48:41 +00:00
Jim Grosbach
00a257af5b Add a few missing initializers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:41:10 +00:00
Chris Lattner
7a0b4fdd14 prune an llvmcontext include and simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120347 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:35:33 +00:00
Chris Lattner
695b281186 Generalize the darwin wrapper hack to work with generic macho triples as well as darwin ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120346 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:29:54 +00:00
Jim Grosbach
03f44a04e6 Nuke trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:18:01 +00:00
Jim Grosbach
cd3c7cb915 Nuke a FIXME. No need to be fancier here, as ARM handles constant pools 
locations and formatting specially. rdar://7353441

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120343 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 23:09:20 +00:00
Owen Anderson
75579f739f Provide Thumb2 encodings for basic loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120340 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:44:32 +00:00
Evan Cheng
1e0eab122b Mark Darwin call instructions as using "r7" to prevent the frame-register 
assignment instructions from being moved below / above calls.
rdar://8690640


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:43:27 +00:00
Jim Grosbach
a0bb253119 Nuke dead isCodeGenOnly annotation and extraneous comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120338 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:40:58 +00:00
Jim Grosbach
fbf0cb18cb tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120335 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:38:48 +00:00
Bill Wendling
9b0e92ca5b Thumb encodings for conditional moves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:37:46 +00:00
Jim Grosbach
5ca66696e7 Pseudo-ize Thumb2 jump tables with explicit MC lowering to the raw 
instructions. This simplifies instruction printing and disassembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120333 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:37:40 +00:00
Michael J. Spencer
dffde99644 Support: Add PathV2 implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120329 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:28:51 +00:00
Bill Wendling
a46a493c02 Refactor some of the "disassembly-only" instructions into a base class. This 
reduces some code duplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120326 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:15:03 +00:00
Chris Lattner
e9e973018a fix PR8677, patch by Jakub Staszak! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120325 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 21:59:31 +00:00
Eric Christopher
7bb5996e47 Update fastisel for the changes in r120272. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120324 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 21:56:23 +00:00
Frits van Bommel
34ceb4db22 Transform (extractvalue (load P), ...) to (load (gep P, 0, ...)) if the load has no other uses, shrinking the load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 21:56:20 +00:00
Jim Grosbach
d092a87ba3 Rename t2 TBB and TBH instructions to reference that they encode the jump table 
data. Next up, pseudo-izing them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 21:28:32 +00:00
Owen Anderson
5404c2b36e Improving the factoring of several instruction encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 20:38:48 +00:00
Frits van Bommel
3ee0af3584 Teach ConstantFoldInstruction() how to fold insertvalue and extractvalue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120316 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 20:36:52 +00:00
Charles Davis
53ca1f3190 Now to chant the magical incantation that will exorcise the System library 
from LLVM forever:

grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 19:44:50 +00:00
Bob Wilson
86c6d80a7a Add support for NEON VLD3-dup instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120312 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 19:35:29 +00:00
Bob Wilson
2fcda63763 Fix copy-and-paste errors in VLD2-dup scheduling itineraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120311 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 19:35:23 +00:00
Jim Grosbach
f1aa47dc1a ARM Pseudo-ize tBR_JTr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 19:32:47 +00:00
Owen Anderson
00a035f74f Thumb2 encodings for MSR and MRS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 19:29:15 +00:00
Owen Anderson
d18a9c9b9d Thumb2 encodings for system instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120307 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 19:22:08 +00:00
Owen Anderson
05bf595122 Thumb2 encodings for branches and IT blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120306 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:54:38 +00:00
Jim Grosbach
11fbff8085 The ARM BR_JT* pseudos don't need to use the printer jtblock_operand node to 
get the pretty-printer. That's handled explicityly by the MC lowering now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120305 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:53:24 +00:00
Michael J. Spencer
3cc52ea33c I swear I did a make clean and make before committing all this... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:47:54 +00:00
Jim Grosbach
2dc7768d73 Switch ARM BR_JTm and BR_JTr instructions to be MC-expanded pseudos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120303 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:37:44 +00:00
Michael J. Spencer
7a9ff3d36c Missed a spot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120301 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:29:55 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:16:10 +00:00
Kalle Raiskila
9363f739cd Handle lshr for i128 correctly on SPU also when 
shiftamount > 7.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 14:44:28 +00:00
Kalle Raiskila
c2ebfd454c Enable PostRA scheduling for SPU. 
This speeds up selected test cases with up to
5% - no slowdowns observed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 10:30:25 +00:00
Kalle Raiskila
b00f24b13c Allow machine LICM to do its job on SPU. 
-return a sensible value for register pressure
-add pattern to 'ila' instrucion


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 10:08:09 +00:00
Kalle Raiskila
11edd0cedc Add missing i128 case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120284 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 09:36:26 +00:00
Chandler Carruth
e89ada98a6 Add some dead stores to pacify my least favorite GCC warning: may be 
uninitialized. The warning is terrible, has incorrect source locations, and has
a huge false positive rate such as *all* of these.

If anyone has a better solution, please let me know. Alternatively, I'll
happily add -Wno-uninitialized to the -Werror build mode. Maybe I can even do
it *only* when building with GCC instead of Clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 01:41:13 +00:00