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Author SHA1 Message Date
Benjamin Kramer
b5996b08b7 SimplifyCFG: GEPs with constant indices are cheap enough to be executed unconditionally. 
llvm-svn: 126445
 2011-02-24 22:46:11 +00:00
Joerg Sonnenberger
9c30c492df Restore r125595 (reverted in r126336) with modifications: 
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.

llvm-svn: 126443
 2011-02-24 21:59:22 +00:00
Chris Lattner
55119c81aa remove command line option debugging hook. 
llvm-svn: 126441
 2011-02-24 21:53:03 +00:00
Argyrios Kyrtzidis
1b1e152fc0 In utils/TableGen/ClangSACheckersEmitter.cpp, set the 'Hidden' bit for checkers. 
llvm-svn: 126436
 2011-02-24 21:33:49 +00:00
Rafael Espindola
58423e8aad Switch LTO to use MC. This takes the linking of libxul.so from about 7m to 
6m30.

llvm-svn: 126426
 2011-02-24 21:04:06 +00:00
Devang Patel
f2b2417c2c Enable DebugInfo support for COFF object files. 
Patch by Nathan Jeffords!

llvm-svn: 126425
 2011-02-24 21:04:00 +00:00
Nadav Rotem
ab7cf630f4 Enable support for vector sext and trunc: 
Limit the folding of any_ext and sext  into the load operation to scalars.
Limit the active-bits trunc optimization to scalars.
Document vector trunc and vector sext in LangRef.

Similar to commit 126080 (for enabling zext).

llvm-svn: 126424
 2011-02-24 21:01:34 +00:00
Rafael Espindola
3a1fd70006 Fix llvm-gcc bootstrap with gnu ld. 
The problem was codegen guessing the wrong values and printing

	.section	.eh_frame,"aMS",@progbits,4

It is not clear at all if Codegen should try to guess, MC is the
one that should know the default flags.

llvm-svn: 126421
 2011-02-24 20:18:01 +00:00
Devang Patel
7f687d8790 Remove obsolete tests. 
llvm-svn: 126402
 2011-02-24 19:09:52 +00:00
Devang Patel
bac565c8a3 Move arch specific tests in arch specific directories. 
llvm-svn: 126401
 2011-02-24 19:06:27 +00:00
Chris Lattner
2f6f4a4788 fit in 80 cols. 
llvm-svn: 126399
 2011-02-24 18:59:38 +00:00
Devang Patel
29b946c0bd Do not use DIFactory. Use DIBuilder. 
llvm-svn: 126398
 2011-02-24 18:49:55 +00:00
Devang Patel
e0f113c206 Do not use DIFactory. 
llvm-svn: 126397
 2011-02-24 18:49:30 +00:00
Richard Osborne
a8df984a31 Add XCore intrinsic for eeu instruction. 
llvm-svn: 126384
 2011-02-24 13:39:18 +00:00
NAKAMURA Takumi
ab9b1d65a4 test/lit.cfg: Add PATHEXT to 'substitution', to recognize tools on Windows hosts. Thanks to Danil Malyshev! 
Some tests on Windows use the "not" utility and fail with an error "program not executable". The reason for this error is that the name of the executable file sended to the "not" without the extension.

llvm-svn: 126383
 2011-02-24 12:34:34 +00:00
Duncan Sands
760d1a03ba Rewrite the vector part of getExtendedTypeAction to make it more 
understandable (at least I find it easier to understand like this).
No intended functionality change.

llvm-svn: 126382
 2011-02-24 11:54:18 +00:00
Benjamin Kramer
feccb33180 Plug some leaks in edis. 
- Don't leak parsed operands during tokenization.
- Don't leak printed insts in llvm-mc.

llvm-svn: 126381
 2011-02-24 11:03:19 +00:00
Cameron Zwarich
724eb8706a Merge information about the number of zero, one, and sign bits of live-out 
registers at phis. This enables us to eliminate a lot of pointless zexts during
the DAGCombine phase. This fixes <rdar://problem/8760114>.

llvm-svn: 126380
 2011-02-24 10:00:25 +00:00
Cameron Zwarich
af4779907f Add a getNumSignBits() method to APInt. 
llvm-svn: 126379
 2011-02-24 10:00:20 +00:00
Cameron Zwarich
e79a75febe Add a mechanism for invalidating the LiveOutInfo of a PHI, and use it whenever 
a block is visited before all of its predecessors.

llvm-svn: 126378
 2011-02-24 10:00:16 +00:00
Cameron Zwarich
5c9384705f Track blocks visited in reverse postorder. 
llvm-svn: 126377
 2011-02-24 10:00:13 +00:00
Cameron Zwarich
3d2f99227a Refactor the LiveOutInfo interface into a few methods on FunctionLoweringInfo 
and make the actual map private.

llvm-svn: 126376
 2011-02-24 10:00:08 +00:00
Cameron Zwarich
e49bf60392 Have isel visit blocks in reverse postorder rather than an undefined order. This 
allows for the information propagated across basic blocks to be merged at phis.

llvm-svn: 126375
 2011-02-24 10:00:04 +00:00
Chris Lattner
e64e9c6f73 wire TargetLibraryInfo into simplify libcalls and use it in a couple of 
trivial places.  This pass needs a lot of work.

llvm-svn: 126367
 2011-02-24 07:16:14 +00:00
Chris Lattner
d1bb8c0277 move a massive amount of code out into its own helper function 
to reduce nesting.  This needs to be turned into a table.

llvm-svn: 126366
 2011-02-24 07:12:12 +00:00
Chris Lattner
72a2ebab6c change instcombine to not turn a call to non-varargs bitcast of 
function prototype into a call to a varargs prototype.  We do
allow the xform if we have a definition, but otherwise we don't
want to risk that we're changing the abi in a subtle way.  On
X86-64, for example, varargs require passing stuff in %al.

llvm-svn: 126363
 2011-02-24 05:10:56 +00:00
Evan Cheng
9db7b1367d Fix bug in X86 folding / unfolding table. Int_CMPSDrm and Int_CMPSSrm memory 
operands starts at index 2, not 1.
rdar://9045024
PR9305

llvm-svn: 126359
 2011-02-24 02:36:52 +00:00
Jakob Stoklund Olesen
0f1be641db Use the same spill slot for all live ranges that descend form the same original 
register.

This avoids some silly stack slot shuffling when both sides of a copy get
spilled.

llvm-svn: 126353
 2011-02-24 01:07:55 +00:00
Michael J. Spencer
3c784e25d6 Depricate PathV1::isAbsolute. 
llvm-svn: 126348
 2011-02-24 01:02:32 +00:00
Devang Patel
e8ade74a52 Use DW_FORM_data2 for DW_AT_language and let users use DW_LANG_lo_user=0x8000 to DW_LANG_hi_user=0xffff range. 
llvm-svn: 126339
 2011-02-23 22:37:04 +00:00
Devang Patel
dc0160e163 Check only relevant strings in output to increase stability of the tests. 
llvm-svn: 126338
 2011-02-23 22:35:57 +00:00
Jim Grosbach
d8032abf70 Remove file. Previous commit deleted content, but left the file around. 
llvm-svn: 126337
 2011-02-23 21:43:31 +00:00
Jim Grosbach
e7be1f2990 Revert r125595, which is an X86-only undocumented assembly syntax extension 
enabled for all targets. Non-X86 targets should not have this behavior
enabled by default.

Joerg, if you would like to resubmit with the behavior conditionalized to be
X86-ELF only, that's fine.

llvm-svn: 126336
 2011-02-23 21:26:51 +00:00
Rafael Espindola
993a4ef35c Put in the symbol table symbols only used in a .globl statement. 
Fixes PR9292.

llvm-svn: 126330
 2011-02-23 20:22:07 +00:00
Richard Osborne
d9564589f6 Add XCore intrinsic for clre instruction. 
llvm-svn: 126322
 2011-02-23 18:52:05 +00:00
Richard Osborne
4a55817288 Add llvm.xcore.waitevent intrinsic. The effect of this intrinsic is to enable 
events on the thread and wait until a resource is ready to event. The vector
of the resource that is ready is returned.

llvm-svn: 126320
 2011-02-23 18:35:59 +00:00
Jakob Stoklund Olesen
5edc1f287b It is safe to ignore LastSplitPoint when the variable is not live out. 
No code will be inserted after the split point anyway.

llvm-svn: 126319
 2011-02-23 18:26:31 +00:00
Richard Osborne
aaac1b01fd Add XCore intrinsic for the setv instruction. 
llvm-svn: 126315
 2011-02-23 16:46:37 +00:00
Richard Osborne
2374e9683e Fix format for setc instruction. 
llvm-svn: 126314
 2011-02-23 15:20:16 +00:00
Richard Osborne
aa39bf94b4 Add XCore intrinsic for settw instruction. 
llvm-svn: 126313
 2011-02-23 14:45:03 +00:00
Frits van Bommel
68294aa16c Implement TODO for implicit C-array-to-ArrayRef conversion. 
llvm-svn: 126311
 2011-02-23 13:43:06 +00:00
Oscar Fuentes
c5598c7531 Export TARGET_TRIPLE on LLVM.cmake. It is necessary for running tests 
on Clang when it builds using LLVM as an external library.

Fixes PR9293.

llvm-svn: 126309
 2011-02-23 11:28:40 +00:00
Sean Callanan
e1308394f1 Fixed a bug in the enhanced disassembler that caused 
it to ignore valid uses of FS and GS as additional
base registers in address computations.  Added a test
case for this.

llvm-svn: 126302
 2011-02-23 03:31:28 +00:00
Sean Callanan
d7e66a8942 Fixed a bug in the enhanced disassembly tester that 
caused it to only parse one line of input.

llvm-svn: 126301
 2011-02-23 03:29:41 +00:00
Evan Cheng
98e040ea71 Change VFPNeonA8 definition to make the code easier to read. 
llvm-svn: 126298
 2011-02-23 02:35:33 +00:00
Stuart Hastings
c0c38e8673 Omit private_extern declarations of extern symbols; followup to 
r124468.  Patch by Rafael Avila de Espindola!

llvm-svn: 126297
 2011-02-23 02:27:05 +00:00
Evan Cheng
da40bcab44 More fcopysign correctness and performance fix. 
The previous codegen for the slow path (when values are in VFP / NEON
registers) was incorrect if the source is NaN.

The new codegen uses NEON vbsl instruction to copy the sign bit. e.g.
        vmov.i32        d1, #0x80000000
        vbsl    d1, d2, d0
If NEON is not available, it uses integer instructions to copy the sign bit.
rdar://9034702

llvm-svn: 126295
 2011-02-23 02:24:55 +00:00
Jakob Stoklund Olesen
17add01160 Keep track of how many times a live range has been dequeued, and prioritize new ranges. 
When a large live range is evicted, it will usually be split when it comes
around again. By deferring evicted live ranges, the splitting happens at a time
when the interference pattern is more realistic. This prevents repeated
splitting and evictions.

llvm-svn: 126282
 2011-02-23 00:56:56 +00:00
Jakob Stoklund Olesen
18a19b665c Fix a bug in determining if there is only a single interfering register. 
llvm-svn: 126277
 2011-02-23 00:29:55 +00:00
Jakob Stoklund Olesen
58efee5c3e Be more aggressive about evicting interference. 
Use interval sizes instead of spill weights to determine if it is legal to evict
interference. A smaller interval can evict interference if all interfering live
ranges are larger.

Allow multiple interferences to be evicted as along as they are all larger than
the live range being allocated.

Spill weights are still used to select the preferred eviction candidate.

llvm-svn: 126276
 2011-02-23 00:29:52 +00:00