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Author SHA1 Message Date
Cameron Zwarich d2f3041c7f We only want to zero extend the existing information if the bit width is 
actually larger.

llvm-svn: 126464
 2011-02-25 01:10:55 +00:00
Jakob Stoklund Olesen 9918b33451 Try harder to get the hint by preferring to evict hint interference. 
llvm-svn: 126463
 2011-02-25 01:04:22 +00:00
Evan Cheng 70d29634a9 Each prologue may have multiple vpush instructions to store callee-saved 
D registers since the vpush list may not have gaps. Make sure the stack
adjustment instruction isn't moved between them. Ditto for vpop in
epilogues.

Sorry, can't reduce a small test case.
rdar://9043312

llvm-svn: 126457
 2011-02-25 00:24:46 +00:00
Benjamin Kramer dfdca1a14d SimplifyCFG: GEPs with just one non-constant index are also cheap. 
llvm-svn: 126452
 2011-02-24 23:26:09 +00:00
Jakob Stoklund Olesen e68a27eecd Tweak the register allocator priority queue some more. 
New live ranges are assigned in long -> short order, but live ranges that have
been evicted at least once are deferred and assigned in short -> long order.

Also disable splitting and spilling for live ranges seen for the first time.

The intention is to create a realistic interference pattern from the heavy live
ranges before starting splitting and spilling around it.

llvm-svn: 126451
 2011-02-24 23:21:36 +00:00
Nick Lewycky 1db7b187cb Remove dead variable. 
llvm-svn: 126450
 2011-02-24 23:15:43 +00:00
Benjamin Kramer 27361a7124 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 afb36fad99 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 0152b7bc7c remove command line option debugging hook. 
llvm-svn: 126441
 2011-02-24 21:53:03 +00:00
Argyrios Kyrtzidis 28785b6be3 In utils/TableGen/ClangSACheckersEmitter.cpp, set the 'Hidden' bit for checkers. 
llvm-svn: 126436
 2011-02-24 21:33:49 +00:00
Rafael Espindola fac373cacb 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 b037383a35 Enable DebugInfo support for COFF object files. 
Patch by Nathan Jeffords!

llvm-svn: 126425
 2011-02-24 21:04:00 +00:00
Nadav Rotem 502f1b943f 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 601a11edd4 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 1a2fdce30a Remove obsolete tests. 
llvm-svn: 126402
 2011-02-24 19:09:52 +00:00
Devang Patel b52040da17 Move arch specific tests in arch specific directories. 
llvm-svn: 126401
 2011-02-24 19:06:27 +00:00
Chris Lattner 7c3230d348 fit in 80 cols. 
llvm-svn: 126399
 2011-02-24 18:59:38 +00:00
Devang Patel cedf928743 Do not use DIFactory. Use DIBuilder. 
llvm-svn: 126398
 2011-02-24 18:49:55 +00:00
Devang Patel a5d93247c2 Do not use DIFactory. 
llvm-svn: 126397
 2011-02-24 18:49:30 +00:00
Richard Osborne 42f52e737e Add XCore intrinsic for eeu instruction. 
llvm-svn: 126384
 2011-02-24 13:39:18 +00:00
NAKAMURA Takumi cb1b5ff9c6 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 47481b9754 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 c053644217 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 a62fc89a04 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 3cf9280214 Add a getNumSignBits() method to APInt. 
llvm-svn: 126379
 2011-02-24 10:00:20 +00:00
Cameron Zwarich 97eb52da7b 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 988faf91bd Track blocks visited in reverse postorder. 
llvm-svn: 126377
 2011-02-24 10:00:13 +00:00
Cameron Zwarich 6470647383 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 b670d512e9 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 eddb33ebd0 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 2e56e20662 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 adf38b3e09 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 3923466e82 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 2b4ded329d 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 a5a8defa92 Depricate PathV1::isAbsolute. 
llvm-svn: 126348
 2011-02-24 01:02:32 +00:00
Devang Patel 7b0f796c55 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 37e056e455 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 fe4858f269 Remove file. Previous commit deleted content, but left the file around. 
llvm-svn: 126337
 2011-02-23 21:43:31 +00:00
Jim Grosbach 0c03a3a146 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 9e18e96264 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 bfa5cc0e08 Add XCore intrinsic for clre instruction. 
llvm-svn: 126322
 2011-02-23 18:52:05 +00:00
Richard Osborne 4995b05f56 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 ed172998a6 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 2c610aa3ed Add XCore intrinsic for the setv instruction. 
llvm-svn: 126315
 2011-02-23 16:46:37 +00:00
Richard Osborne 12377e0947 Fix format for setc instruction. 
llvm-svn: 126314
 2011-02-23 15:20:16 +00:00
Richard Osborne aab96995f6 Add XCore intrinsic for settw instruction. 
llvm-svn: 126313
 2011-02-23 14:45:03 +00:00
Frits van Bommel 026982e24f Implement TODO for implicit C-array-to-ArrayRef conversion. 
llvm-svn: 126311
 2011-02-23 13:43:06 +00:00
Oscar Fuentes 2ece0b171f 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 34770edf43 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 be81988c99 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