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1418 Commits

Author SHA1 Message Date
Chris Lattner
2e3f9253fd improve indentation 
llvm-svn: 114815
 2010-09-27 06:34:01 +00:00
Eric Christopher
467683e4ab This code should never fire on non-darwin subtargets. 
llvm-svn: 114811
 2010-09-27 06:01:51 +00:00
Dale Johannesen
d75242fa84 We can't return SSE/MMX vectors if SSE is disabled. 
llvm-svn: 114745
 2010-09-24 19:05:48 +00:00
Bob Wilson
3ff9f2d102 Attempt to fix llvm-gcc build. It was crashing when building gcov.o for an 
ARM cross-compiler on x86, because the MMO size did not match the type size.
This fixes the MMO size and also the size of the stack object to match the
type size.

llvm-svn: 114554
 2010-09-22 17:35:14 +00:00
Chris Lattner
26d11d7501 reimplement elf TLS support in terms of addressing modes, eliminating SegmentBaseAddress. 
llvm-svn: 114529
 2010-09-22 04:39:11 +00:00
Chris Lattner
c81dcbec9e convert the last 4 X86ISD nodes that should have memoperands to have them. 
llvm-svn: 114523
 2010-09-22 01:28:21 +00:00
Chris Lattner
29754fc406 give X86ISD::FNSTCW16m a memoperand, since it touches memory. It only 
can access the stack due to how it is generated though.

llvm-svn: 114522
 2010-09-22 01:11:26 +00:00
Chris Lattner
fee1ac61bd give FP_TO_INT16_IN_MEM and friends a memoperand. They are only 
used with stack slots, but hey, lets be safe.

llvm-svn: 114521
 2010-09-22 01:05:16 +00:00
Chris Lattner
e52da86fab give VZEXT_LOAD a memory operand, it now works with segment registers. 
llvm-svn: 114515
 2010-09-22 00:34:38 +00:00
Chris Lattner
f9861312cb give LCMPXCHG_DAG[8] a memory operand, allowing it to work with addrspace 256/257 
llvm-svn: 114508
 2010-09-21 23:59:42 +00:00
Owen Anderson
f6dd8e7f5c Reimplement r114460 in target-independent DAGCombine rather than target-dependent, by using 
the predicate to discover the number of sign bits.  Enhance X86's target lowering to provide
a useful response to this query.

llvm-svn: 114473
 2010-09-21 20:42:50 +00:00
Chris Lattner
3dde58c15a convert a couple more places to use the new getStore() 
llvm-svn: 114463
 2010-09-21 18:51:21 +00:00
Owen Anderson
97a8fdc19c When adding the carry bit to another value on X86, exploit the fact that the carry-materialization 
(sbbl x, x) sets the registers to 0 or ~0.  Combined with two's complement arithmetic, we can fold
the intermediate AND and the ADD into a single SUB.

This fixes <rdar://problem/8449754>.

llvm-svn: 114460
 2010-09-21 18:41:19 +00:00
Chris Lattner
5f584efd31 eliminate some uses of the getStore overload. 
llvm-svn: 114453
 2010-09-21 17:50:43 +00:00
Chris Lattner
4320dda4fb convert the targets off the non-MachinePointerInfo of getLoad. 
llvm-svn: 114410
 2010-09-21 06:44:06 +00:00
Chris Lattner
112cf9bc89 it's more elegant to put the "getConstantPool" and 
"getFixedStack" on the MachinePointerInfo class.  While
this isn't the problem I'm setting out to solve, it is the
right way to eliminate PseudoSourceValue, so lets go with it.

llvm-svn: 114406
 2010-09-21 06:22:23 +00:00
Chris Lattner
810a630851 update the X86 backend to use the MachinePointerInfo version of one 
of the getLoad methods.  This fixes at least one bug where an incorrect
svoffset is passed in (a potential combiner-aa miscompile).

llvm-svn: 114404
 2010-09-21 06:02:19 +00:00
Chris Lattner
f94de5bf46 reimplement memcpy/memmove/memset lowering to use MachinePointerInfo 
instead of srcvalue/offset pairs.  This corrects SV info for mem 
operations whose size is > 32-bits.

llvm-svn: 114401
 2010-09-21 05:40:29 +00:00
Chris Lattner
2edbad8a3d convert targets to the new MF.getMachineMemOperand interface. 
llvm-svn: 114391
 2010-09-21 04:39:43 +00:00
John Thompson
ae3a86d6de Added skeleton for inline asm multiple alternative constraint support. 
llvm-svn: 113766
 2010-09-13 18:15:37 +00:00
Bruno Cardoso Lopes
a74c787dc8 Minor change. Fix comments and remove unused and redundant code 
llvm-svn: 113378
 2010-09-08 18:12:31 +00:00
Bruno Cardoso Lopes
892c337123 x86 vector shuffle lowering now relies only on target specific 
nodes to emit shuffles and don't do isel mask matching anymore.
- Add the selection of the remaining shuffle opcode (movddup)
- Introduce two new functions to "recognize" where we may get
potential folds and add several comments to them explaining why
they are not yet in the desidered shape.
- Add more patterns to fallback the case where we select
a specific shuffle opcode as if it could fold a load, but it
can't, so remap to a valid instruction.
- Add a couple of FIXMEs to address in the following days once
there's a good solution to the current folding problem.

llvm-svn: 113369
 2010-09-08 17:43:25 +00:00
Bruno Cardoso Lopes
a4ca8c3ac5 Factor out some x86 vector shuffle rewriting and add comments about the direction the shuffle lowering is heading to 
llvm-svn: 113286
 2010-09-07 21:03:14 +00:00
Bruno Cardoso Lopes
e33983dba9 Move code around to prepare for moving some of the logic together to another function 
llvm-svn: 113267
 2010-09-07 20:20:27 +00:00
Bill Wendling
9bb7ac566f Add an MVT::x86mmx type. It will take the place of all current MMX vector types. 
llvm-svn: 113261
 2010-09-07 20:03:56 +00:00
Bruno Cardoso Lopes
21e1fc67c3 decouple MMX check from regular splat checks. Some refactoring is coming, and MMX should be left alone to be easily removed after moving to intrinsics 
llvm-svn: 113247
 2010-09-07 18:41:45 +00:00
Bruno Cardoso Lopes
dcc8690051 Remove now useless check, because the code can be matched below, no need to leave it for isel 
llvm-svn: 113242
 2010-09-07 18:29:03 +00:00
Bruno Cardoso Lopes
e6f7e4684d Minor change. Since the checks are equivalent, use isMMX 
llvm-svn: 113239
 2010-09-07 18:24:00 +00:00
Bruno Cardoso Lopes
8d76bbe31c Remove the last bit of isShuffleMaskLegal checks and improve the comment regarding mmx shuffles 
llvm-svn: 113059
 2010-09-04 02:58:56 +00:00
Bruno Cardoso Lopes
fccf00be8c make explicit that we not handle several mmx shuffles 
llvm-svn: 113058
 2010-09-04 02:50:13 +00:00
Bruno Cardoso Lopes
0562140ec3 Emit target specific nodes to handle palignr. Do not touch it for MMX versions yet. 
llvm-svn: 113056
 2010-09-04 02:36:07 +00:00
Bruno Cardoso Lopes
73651844b2 Emit target specific nodes to handle splats starting at zero indicies 
llvm-svn: 113055
 2010-09-04 02:02:14 +00:00
Bruno Cardoso Lopes
483bb7eed2 Emit target specific nodes for isPSHUFHWMask and isPSHUFLWMask 
llvm-svn: 113050
 2010-09-04 01:36:45 +00:00
Bruno Cardoso Lopes
742030b3db Emit target specific nodes for isSHUFPMask 
llvm-svn: 113048
 2010-09-04 01:22:57 +00:00
Bruno Cardoso Lopes
3e3169873e Previous isMOVLMask matching already emits targets nodes, remove check 
llvm-svn: 113047
 2010-09-04 00:50:08 +00:00
Bruno Cardoso Lopes
b867456bfc One more check from the original isShuffleMaskLegal goes away 
llvm-svn: 113045
 2010-09-04 00:46:16 +00:00
Bruno Cardoso Lopes
3081ae493b Remove a duplicated but useless check that i've inserted in the previous commit. 
llvm-svn: 113044
 2010-09-04 00:43:12 +00:00
Bruno Cardoso Lopes
22775e6e65 Refactor some code and remove the extra checks for unpckl_undef and unpckh_undef 
llvm-svn: 113043
 2010-09-04 00:39:43 +00:00
Bruno Cardoso Lopes
5d71537f4a Remove check for unpckh mask 
llvm-svn: 113035
 2010-09-03 23:32:47 +00:00
Bruno Cardoso Lopes
d9d2ed558e Remove check for unpckl mask 
llvm-svn: 113034
 2010-09-03 23:31:50 +00:00
Bruno Cardoso Lopes
ecfa52b251 Inline isShuffleMaskLegal into LowerVECTOR_SHUFFLE, so we can start 
checking each standalone condition and decide whether emit target
specific nodes or remove the condition if it's already matched before.

llvm-svn: 113031
 2010-09-03 23:24:06 +00:00
Bruno Cardoso Lopes
01dc6f1195 Reapply considered harmfull part of rr112934 and r112942. 
"Use target specific nodes instead of relying in unpckl and
unpckh pattern fragments during isel time. Also place a
depth limit in getShuffleScalarElt.

llvm-svn: 113020
 2010-09-03 22:09:41 +00:00
Bruno Cardoso Lopes
4753ce5e2c Reintroduce a simple function refactoring done in r112934, also without any functionality changes 
llvm-svn: 113008
 2010-09-03 20:20:02 +00:00
Bruno Cardoso Lopes
3c43bc3214 Reapply piecies of r112942 and r112934 which don't do 
functional changes

llvm-svn: 113007
 2010-09-03 20:10:35 +00:00
Bruno Cardoso Lopes
9635a81d34 Reapply Fix comment 
llvm-svn: 113006
 2010-09-03 19:55:05 +00:00
Daniel Dunbar
26e0e964ab Revert r112934, "- Use specific nodes to match unpckl masks.", which introduced 
some infinite loop and select failures.
 - Apologies for eager reverting, but its branch day.

llvm-svn: 113000
 2010-09-03 19:38:11 +00:00
Daniel Dunbar
c8af4f3a0a Revert r112938 "Fix comment", which depends on r112934, which introduced some 
infinite loop and select failures.

llvm-svn: 112999
 2010-09-03 19:38:08 +00:00
Daniel Dunbar
4ece67890b Revert r112942, "Use punpckh and unpckh family of nodes instead of using unpckh 
mask pattern fragment", which depends on r112934, which introduced some infinite
loop and select failures.

llvm-svn: 112998
 2010-09-03 19:38:05 +00:00
Bruno Cardoso Lopes
70f376e9da Use punpckh and unpckh family of nodes instead of using unpckh mask pattern fragment 
llvm-svn: 112942
 2010-09-03 01:39:08 +00:00
Bruno Cardoso Lopes
b107a092a5 Fix comment 
llvm-svn: 112938
 2010-09-03 01:28:51 +00:00