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Author SHA1 Message Date
Owen Anderson
77676a8f1d Fix PR8441, a thread unsafe static variable in our dynamic library loading facilities. 
llvm-svn: 118463
 2010-11-09 00:36:06 +00:00
Bill Wendling
41fb74d268 Revert r118457 and r118458. These won't hold for GPRs. 
llvm-svn: 118462
 2010-11-09 00:30:18 +00:00
Owen Anderson
a5c69eec12 Fix PR8441, a race condition in the static attributes list. While the reference counting was itself threadsafe, 
the implicit removal of each object from the global list was not.  Make this operation atomic.

llvm-svn: 118461
 2010-11-09 00:27:03 +00:00
Bill Wendling
f080f8ddfe Get the register and count from the register list operands. 
llvm-svn: 118458
 2010-11-08 23:51:20 +00:00
Bill Wendling
ab76e02a12 reglist has two operands. 
llvm-svn: 118457
 2010-11-08 23:50:20 +00:00
Bill Wendling
2ff2ee2765 The "addRegListOperands()" function returns the start register and the total 
number of registers in the list.

llvm-svn: 118456
 2010-11-08 23:49:57 +00:00
Dan Gohman
227bf9fea9 Add some comments noting some correspondences between ModRefBehavior 
values, LLVM IR function attributes, and LLVM intrinsic attributes.

llvm-svn: 118455
 2010-11-08 23:46:02 +00:00
Owen Anderson
52e3873edc Add support for ARM's specialized vector-compare-against-zero instructions. 
llvm-svn: 118453
 2010-11-08 23:21:22 +00:00
Bruno Cardoso Lopes
64dd957550 Initial support for Mips32 and Mips32r2. Patch contributed by Akira Hatanaka (ahatanaka@mips.com) 
llvm-svn: 118447
 2010-11-08 21:42:32 +00:00
Bill Wendling
3e6eee5c35 Add "write back" bit encoding. 
llvm-svn: 118446
 2010-11-08 21:28:03 +00:00
Bruno Cardoso Lopes
9f9f796756 Fix PR8211 
llvm-svn: 118445
 2010-11-08 21:24:59 +00:00
Michael J. Spencer
13728c298a Remove contributor names as per coding statndard. 
llvm-svn: 118442
 2010-11-08 20:56:32 +00:00
Duncan Sands
3ced912bf8 Add an additional test for icmp of select folding. 
llvm-svn: 118441
 2010-11-08 20:56:28 +00:00
Dan Gohman
9f78edd2a7 Re-introduce the MaxLookup limit to BasicAliasAnalysis' 
pointsToConstantMemory code to guard against possible
compile time slowdowns.

llvm-svn: 118440
 2010-11-08 20:26:19 +00:00
Dan Gohman
cee4cb4b0a Add a testcase for a call which BasicAA says only accesses memory through 
its arguments and which TBAA says doesn't write to memory.

llvm-svn: 118439
 2010-11-08 20:20:11 +00:00
Wesley Peck
f3909b741f Adding working version of assembly parser for the MBlaze backend 
Major cleanup of whitespace and formatting issues in MBlaze backend

llvm-svn: 118434
 2010-11-08 19:40:01 +00:00
Dan Gohman
9ab4ef5e65 Fix a thinko that Duncan spotted. 
llvm-svn: 118430
 2010-11-08 19:24:47 +00:00
Dale Johannesen
f16acd1325 Revert 118422 in search of bot verdancy. 
llvm-svn: 118429
 2010-11-08 19:17:22 +00:00
Devang Patel
af569979a6 Document parameters. Fix typos. 
llvm-svn: 118424
 2010-11-08 18:28:34 +00:00
Andrew Trick
45ec210e3c Adds support for spilling previously allocated live intervals to 
handle cases in which a register is unavailable for spill code.
Adds LiveIntervalUnion::extract. While processing interferences on a
live virtual register, reuses the same Query object for each
physcial reg.

llvm-svn: 118423
 2010-11-08 18:02:08 +00:00
Jason W Kim
a253ed4e26 Support -mcpu=cortex-a8 in ARM attributes - Has Fixme. 1 Test modified. 
llvm-svn: 118422
 2010-11-08 17:58:07 +00:00
Daniel Dunbar
a8fb354cdf Fix typo. 
llvm-svn: 118421
 2010-11-08 17:53:02 +00:00
Dan Gohman
c04ed6e5da Make FunctionAttrs TBAA-aware. 
llvm-svn: 118417
 2010-11-08 17:12:04 +00:00
Dan Gohman
46cb7cd7d8 Implement getModRefBehavior for TypeBasedAliasAnalysis. 
llvm-svn: 118416
 2010-11-08 17:10:22 +00:00
Jason W Kim
c43f11132e Complete listing of ARM/MC/ELF relocation enums 
llvm-svn: 118413
 2010-11-08 16:47:27 +00:00
Dan Gohman
6909ecf66e Extend the AliasAnalysis::pointsToConstantMemory interface to allow it 
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.

llvm-svn: 118412
 2010-11-08 16:45:26 +00:00
Dan Gohman
ee58dba24c Delete getIntrinsicModRefBehavior. Clients can just use the normal 
getModRefBehavior now, since it now understands intrinsics as well
as normal functions.

llvm-svn: 118411
 2010-11-08 16:11:19 +00:00
Dan Gohman
4e65d5ff92 Make FunctionAttrs use AliasAnalysis::getModRefBehavior, now that it 
knows about intrinsic functions.

llvm-svn: 118410
 2010-11-08 16:10:15 +00:00
Dan Gohman
a8838ec654 Teach BasicAliasAnalysis::getModRefBehavior(const Function *F) 
to analyze intrinsic functions.

llvm-svn: 118409
 2010-11-08 16:08:43 +00:00
Dan Gohman
c3202f8550 Add comments. 
llvm-svn: 118408
 2010-11-08 15:34:42 +00:00
Che-Liang Chiou
6ba699c749 Add generating function declaration for PTX 
llvm-svn: 118398
 2010-11-08 03:06:08 +00:00
Che-Liang Chiou
e207994d1b Add physical register counting functions 
llvm-svn: 118397
 2010-11-08 03:00:52 +00:00
Che-Liang Chiou
e2c8a54474 Add a dummy PTXMCAsmStreamer class 
llvm-svn: 118396
 2010-11-08 02:58:44 +00:00
Rafael Espindola
1602d991d5 Set default flags for .rodata. 
llvm-svn: 118395
 2010-11-08 02:47:59 +00:00
Che-Liang Chiou
4cc802839c Add registry hook for assembly text output 
llvm-svn: 118394
 2010-11-08 02:21:17 +00:00
Bill Wendling
19873cf3ff Make RegList an ASM operand so that TableGen will generate code for it. This is 
an initial implementation and may change once reglists are fully fleshed out.

llvm-svn: 118390
 2010-11-08 00:39:58 +00:00
Bill Wendling
611dbaee50 Revert. 
llvm-svn: 118389
 2010-11-08 00:32:40 +00:00
Duncan Sands
0a5bcce250 Add simplification of floating point comparisons with the result 
of a select instruction, the same as already exists for integer
comparisons.

llvm-svn: 118379
 2010-11-07 16:46:25 +00:00
Duncan Sands
c9c7d54930 Fix a README item: when doing a comparison with the result 
of a select instruction, see if doing the compare with the
true and false values of the select gives the same result.
If so, that can be used as the value of the comparison.

llvm-svn: 118378
 2010-11-07 16:12:23 +00:00
Rafael Espindola
296935eca3 Speed up AddSectionToTheEnd. It was walking all fragments in all sections. 
This is really slow with we have 1000s of sections each with a corresponding
relocation section. Also, it is only used by the ELF writer to add
basic data, so there is no need to force a new layout pass.

Should fix PR8563.

llvm-svn: 118377
 2010-11-07 15:03:27 +00:00
Rafael Espindola
fd7a61257b typos 
llvm-svn: 118376
 2010-11-07 13:48:10 +00:00
Bill Wendling
1338bc5cac In this context, a reglist is a reg. 
llvm-svn: 118375
 2010-11-07 13:08:28 +00:00
Ted Kremenek
3bb32def7e Fix memory leak in StringRef::edit_distance(). 'Allocated' could be leaked on an early return. 
llvm-svn: 118370
 2010-11-07 06:09:02 +00:00
Dale Johannesen
d48eca9b43 Testcase for llvm-gcc 118368. 8629268. 
llvm-svn: 118369
 2010-11-07 04:58:48 +00:00
Rafael Espindola
49a9710db0 Add method for checking if a path is a symbolic link. 
llvm-svn: 118367
 2010-11-07 04:36:50 +00:00
Rafael Espindola
877bb5ba4b Relax dwarf line fragments. This fixes a crash in the included testcase. 
llvm-svn: 118365
 2010-11-07 02:07:12 +00:00
Chris Lattner
24ba201941 implement aliases for div/idiv that have an explicit A register operand, 
implementing rdar://8431864

llvm-svn: 118364
 2010-11-06 22:41:18 +00:00
Bill Wendling
0493b6982a Add support for parsing register lists. We can't use a bitfield to keep track of 
the registers, because the register numbers may be much greater than the number
of bits available in the machine's register.

I extracted the register list verification code out of the actual parsing of the
registers. This made checking for errors much easier. It also limits the number
of warnings that would be emitted for cascading infractions.

llvm-svn: 118363
 2010-11-06 22:36:58 +00:00
Chris Lattner
25f31dcc8f add aliases for movs between seg registers and mem. There are multiple 
different forms of this instruction (movw/movl/movq) which we reported
as being ambiguous.  Since they all do the same thing, gas just picks the
one with the shortest encoding.  Follow its lead here.

This implements rdar://8208615

llvm-svn: 118362
 2010-11-06 22:35:34 +00:00
Chris Lattner
5cd42cb6f4 move the "sh[lr]d op,op" -> "shld $1, op,op" aliases to the .td file. 
llvm-svn: 118361
 2010-11-06 22:25:39 +00:00