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Author SHA1 Message Date
Chris Lattner
ef2e024af8 Move cmov pseudo instructions to InstrCompiler, 
convert all the rest of the cmovs to the multiclass,
with good results:

 X86InstrCMovSetCC.td |  598 +--------------------------------------------------
 X86InstrCompiler.td  |   61 +++++
 2 files changed, 77 insertions(+), 582 deletions(-)

llvm-svn: 115707
 2010-10-05 23:09:10 +00:00
Chris Lattner
195a9c3877 Use #NAME# to have the CMOV multiclass define things with the same names as before 
(e.g. CMOVBE16rr instead of CMOVBErr16).

llvm-svn: 115705
 2010-10-05 23:00:14 +00:00
Owen Anderson
38e84dd7ea Another step towards getting rid of static ctors for pass registration: have INITIALIZE_PASS AND INITIALIZE_AG_PASS 
expand to an initializeMyPass() function (in additional to the extant static ctors).  Eventually, these will be called
from a big InitializeAllPasses() function, and the PassInfo's they create (which would be leaked if this code were used
at the moment) will be handed off to a PassRegistry for ownership.

llvm-svn: 115703
 2010-10-05 22:58:16 +00:00
Chris Lattner
3357066875 enhance tblgen to support anonymous defm's, use this to 
simplify the X86 CMOVmr's.

llvm-svn: 115702
 2010-10-05 22:51:56 +00:00
Chris Lattner
b2ac22f0a4 convert cmov mr patterns to use a multipattern. Death to redundancy 
and verbosity

llvm-svn: 115701
 2010-10-05 22:42:54 +00:00
Rafael Espindola
e2bc98a2b2 Implement more alias cases. 
llvm-svn: 115699
 2010-10-05 22:26:43 +00:00
Chris Lattner
c3c03dfeff switch CMOVBE to the multipattern: 
21 insertions(+), 53 deletions(-)

Moar change coming before I switch the rest.

llvm-svn: 115697
 2010-10-05 22:23:58 +00:00
Jakob Stoklund Olesen
592949c742 We can split around loops with multiple exits now. 
llvm-svn: 115696
 2010-10-05 22:19:35 +00:00
Jakob Stoklund Olesen
8137fd6975 Update SplitEditor API to reflect the fact that the original live interval is 
never kept after splitting.

Keeping the original interval made sense when the split region doesn't modify
the register, and the original is spilled. We can get the same effect by
detecting reloaded values when spilling around copies.

llvm-svn: 115695
 2010-10-05 22:19:33 +00:00
Jakob Stoklund Olesen
65051fba34 Intervals are half-open. 
llvm-svn: 115694
 2010-10-05 22:19:29 +00:00
Chris Lattner
5673933e30 fix a bug I introduced in r115669, which ended up with MOV64mr_TC 
not getting marked as mayStore.  This fixes llvm-gcc bootstrap.

llvm-svn: 115693
 2010-10-05 22:16:48 +00:00
Chris Lattner
a5c35bed7b add a multiclass for cmov's, but don't start using it yet. 
llvm-svn: 115692
 2010-10-05 22:01:02 +00:00
Chris Lattner
7065387c35 use a multipattern to define setcc instructions: 
X86InstrCMovSetCC.td |  200 ++++++---------------------------------------------
 1 file changed, 27 insertions(+), 173 deletions(-)

llvm-svn: 115689
 2010-10-05 21:34:29 +00:00
Rafael Espindola
d82f0f7aac 256 sections should be enough for anyone... 
llvm-svn: 115687
 2010-10-05 21:20:07 +00:00
Chris Lattner
fa6f058b70 move SETB pseudos into the same place in InstrCompiler.td 
llvm-svn: 115686
 2010-10-05 21:18:04 +00:00
Chris Lattner
ca34143ddd Replace a gross hack (the MOV64ri_alt instruction) with a slightly less 
gross hack (having the asmmatcher handle the alias).

llvm-svn: 115685
 2010-10-05 21:09:45 +00:00
Rafael Espindola
5762077d52 Don't crash in a strange .size directive. 
llvm-svn: 115684
 2010-10-05 21:02:45 +00:00
Chris Lattner
5d7d5a81eb distribute the rest of the contents of X86Instr64bit.td out to 
the right places.  X86Instr64bit.td now dies, long live x86-64!

llvm-svn: 115669
 2010-10-05 20:49:15 +00:00
Jakob Stoklund Olesen
5391f55f59 When we find a reaching definition, make sure it is visited from all paths by 
erasing it from the visited set. That ensures we create the right phi defs.

llvm-svn: 115666
 2010-10-05 20:36:28 +00:00
Jakob Stoklund Olesen
d4b34928be Don't use nextIndex to check for live out of instruction. 
Insert copy after defining instruction.

Fix LiveIntervalMap::extendTo to properly handle live segments starting before
the current basic block.

Make sure the open live range is extended to the inserted copy's use slot.

llvm-svn: 115665
 2010-10-05 20:36:25 +00:00
Chris Lattner
c06e348ff8 move the rest of the simple 64-bit arithmetic into InstrArithmetic.td 
llvm-svn: 115663
 2010-10-05 20:35:37 +00:00
Chris Lattner
80ffcbd80a continue moving 64-bit stuff into X86InstrArithmetic.td 
llvm-svn: 115660
 2010-10-05 20:23:31 +00:00
Michael J. Spencer
079e1e2ce8 Fix Punctuation. 
llvm-svn: 115657
 2010-10-05 19:48:12 +00:00
Michael J. Spencer
19b6962abb MC-COFF: Fix (PR8278) temporary symbol relocations. 
llvm-svn: 115656
 2010-10-05 19:48:03 +00:00
Rafael Espindola
0b536fb0fb Add support for a fill value in the .zero directive. 
llvm-svn: 115655
 2010-10-05 19:42:57 +00:00
Jakob Stoklund Olesen
10ef24812f Tweak VNInfo printing. 
llvm-svn: 115650
 2010-10-05 18:48:57 +00:00
Jakob Stoklund Olesen
4557c776f3 Add assert for valid slot indexes. 
llvm-svn: 115649
 2010-10-05 18:48:55 +00:00
Jim Grosbach
7c112a9c65 Increase the number of bits used internally by the ARM target to represent the 
addressing mode from four to five.

llvm-svn: 115645
 2010-10-05 18:14:55 +00:00
Rafael Espindola
f850cfbc16 Implement a simple alias case and refactor the code a bit so that the 
isInSymtab and isLocal logic in the two loops don't get easily out of sync.

llvm-svn: 115643
 2010-10-05 18:01:23 +00:00
Owen Anderson
20b48697cd Use a more efficient lowering of uint64_t --> float that can take advantage of hardware signed integer conversion without 
having to do a double cast (uint64_t --> double --> float).  This is based on the algorithm from compiler_rt's __floatundisf
for X86-64.

llvm-svn: 115634
 2010-10-05 17:24:05 +00:00
Chris Lattner
aae0403342 move 64-bit add and adc to InstrArithmetic. 
llvm-svn: 115632
 2010-10-05 16:59:08 +00:00
Chris Lattner
f5f0742885 rewrote two addr constraints so that they are only set, not set and then nestedly cleared. 
llvm-svn: 115631
 2010-10-05 16:52:25 +00:00
Chris Lattner
cdf60fcc21 split the 32-bit integer arithmetic instructions out to their own file. 
llvm-svn: 115627
 2010-10-05 16:39:12 +00:00
Rafael Espindola
e829a55e8e Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed. 
llvm-svn: 115623
 2010-10-05 15:48:37 +00:00
Dan Gohman
e4c61a1443 After printing "Running 'Graphviz' program... " and running the 
Graphviz program, print something with a newline, to avoid leaving
the line unfinished.

llvm-svn: 115620
 2010-10-05 15:30:27 +00:00
Rafael Espindola
5f53528867 On ELF we need to know which symbols are used in relocations to decide if 
they should be in the symbol table or not. Instead of "guessing", just compute
the symbol table after the relocations are known.

llvm-svn: 115619
 2010-10-05 15:11:03 +00:00
Chris Lattner
4cf3aff9c1 integrate the 64-bit shifts into X86InstrShiftRotate.td. Enough for tonight. 
llvm-svn: 115608
 2010-10-05 07:13:35 +00:00
Chris Lattner
3d1c1ff4c2 move 32-bit shift and rotates out to their own file. 
llvm-svn: 115607
 2010-10-05 07:00:12 +00:00
Chris Lattner
40954218dd add new file 
llvm-svn: 115606
 2010-10-05 06:52:35 +00:00
Chris Lattner
1c0cbe9571 move sign and zero extensions out to their own file. 
llvm-svn: 115605
 2010-10-05 06:52:26 +00:00
Chris Lattner
12a0f5c3bd move some instructions from Instr64Bit -> InstrInfo. 
bswap32 doesn't read eflags.

llvm-svn: 115604
 2010-10-05 06:47:35 +00:00
Chris Lattner
9317bf2ed5 move CMOV_FR32 and friends to InstrCompiler, since they are 
pseudo instructions.

Move POPCNT to InstrSSE since they are SSE4 instructions.

llvm-svn: 115603
 2010-10-05 06:41:40 +00:00
Chris Lattner
d96f3fe646 move various pattern matching support goop out of X86Instr64Bit, to live 
with the 32-bit stuff.

llvm-svn: 115602
 2010-10-05 06:37:31 +00:00
Chris Lattner
7451cc0f59 split conditional moves and setcc's out to their own file. 
llvm-svn: 115601
 2010-10-05 06:33:16 +00:00
Chris Lattner
7114e187e1 move string pseudo instructions to InstrCompiler consolidate 64-bit and 32-bit together. 
llvm-svn: 115600
 2010-10-05 06:27:48 +00:00
Chris Lattner
e63d763713 move the atomic pseudo instructions out to X86InstrCompiler.td 
llvm-svn: 115599
 2010-10-05 06:22:35 +00:00
Chris Lattner
a2e5444bb4 move more pseudo instructions out to X86InstrCompiler.td 
llvm-svn: 115598
 2010-10-05 06:10:16 +00:00
Chris Lattner
383d15c9d8 move VMX instructions out to their own file. 
llvm-svn: 115597
 2010-10-05 06:06:53 +00:00
Chris Lattner
5f59acddbc continue moving stuff out to X86InstrSystem.td. Move 
control flow stuff out to X86InstrControl.td.  Move
some compiler pseudo instructions and Pat<> patterns
out to X86InstrCompiler.td

llvm-svn: 115596
 2010-10-05 06:04:14 +00:00
Michael J. Spencer
d26ae30ed9 fix MSVC 2010 build. 
llvm-svn: 115594
 2010-10-05 06:00:43 +00:00
Michael J. Spencer
12a13def14 Cleanup Whitespace. 
llvm-svn: 115593
 2010-10-05 06:00:33 +00:00
Chris Lattner
db65ba5acf refactor .td files a bit, moving system instructions out to X86InstrSystem.td 
llvm-svn: 115591
 2010-10-05 05:32:15 +00:00
Jim Grosbach
8b1d76f9e2 Re-apply r115363 and r115366 now that r115525 has removed the un-needed header 
that caused the circular dependencies on Linux.

Built OK for me on OSX and Linux (Ubuntu) with configure/make and CMake. Will
keep an eye on the bots....

llvm-svn: 115582
 2010-10-05 00:34:11 +00:00
Evan Cheng
7218d81721 This DAG combine BRCOND transformation can look pass truncate of the operand: 
//   %a = ...                                                                                                                                                                                  
    //   %b = and i32 %a, 2                                                                                                                                                                        
    //   %c = srl i32 %b, 1                                                                                                                                                                        
    //   brcond i32 %c ...                                                                                                                                                                         
    //                                                                                                                                                                                             
    // into                                                                                                                                                                                        
    //                                                                                                                                                                                             
    //   %a = ...                                                                                                                                                                                  
    //   %b = and i32 %a, 2                                                                                                                                                                        
    //   %c = setcc eq %b, 0                                                                                                                                                                       
    //   brcond %c ...

Make sure it restores local variable N1, which corresponds to the condition operand if it fails to match.

This apparently breaks TCE but since that backend isn't in the tree I don't have a test for it.

llvm-svn: 115571
 2010-10-04 22:41:01 +00:00
Bill Wendling
b94ade249a The pshufw instruction came about in MMX2 when SSE was introduced. Don't place 
it in with the SSSE3 instructions.

Steward! Could you place this chair by the aft sun deck? I'm trying to get away
from the Astors. They are such boors!

llvm-svn: 115552
 2010-10-04 20:24:01 +00:00
Kevin Enderby
01b93a4319 Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel! 
1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
   named.  Since it is just a predicate and isn't actually changing any state.

2) Added a missing return in the comments for setCurrentDwarfLoc() in 
   include/llvm/MC/MCContext.h for fix formatting.

3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change
   state.

4) Simplified the last test in isValidDwarfFileNumber() to just a one line
   boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.

llvm-svn: 115551
 2010-10-04 20:17:24 +00:00
Rafael Espindola
dcac047c7f Implement ELF::R_X86_64_GOTPCREL. 
llvm-svn: 115547
 2010-10-04 19:51:39 +00:00
Rafael Espindola
6b80b08cec Move isFixupKindX86PCRel. 
llvm-svn: 115545
 2010-10-04 19:46:28 +00:00
Rafael Espindola
f7e642c0da Produce a R_X86_64_PLT32 when needed. 
llvm-svn: 115541
 2010-10-04 19:04:13 +00:00
Rafael Espindola
08361a0329 Produce a R_X86_64_GOT32 when needed. 
llvm-svn: 115537
 2010-10-04 18:44:25 +00:00
Jim Grosbach
7a161fb4e2 Remove unneeded header 
llvm-svn: 115525
 2010-10-04 17:53:40 +00:00
Jan Wen Voung
9c76bbf90a Add hook in MCSection to decide when to use "optimized nops", for each 
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.

llvm-svn: 115523
 2010-10-04 17:32:41 +00:00
Dan Gohman
ff478951be Don't add the operand count to SCEV uniquing data; FoldingSetNodeID 
already knows its own length, so this is redundant.

llvm-svn: 115521
 2010-10-04 17:24:08 +00:00
Rafael Espindola
491c3f9ef7 Include the section address in the computation of the relocation. 
llvm-svn: 115509
 2010-10-04 15:59:01 +00:00
Rafael Espindola
ce6ea76503 Correctly compute the relocation when it is not in the first fragment. 
llvm-svn: 115506
 2010-10-04 15:28:43 +00:00
Lang Hames
50cc10e9a7 Removed the older style (in-allocator) problem construction system from the PBQP allocator. Problem construction is now done exclusively with the new builders. 
llvm-svn: 115502
 2010-10-04 12:13:07 +00:00
Anton Korobeynikov
f1acea8615 va_args support for Win64. 
Patch by Cameron!

llvm-svn: 115480
 2010-10-03 22:52:07 +00:00
Anton Korobeynikov
31b3b2ca41 Properly emit stack probe on win64 (for non-mingw targets). 
Based on the patch by Cameron Esfahani!

llvm-svn: 115479
 2010-10-03 22:02:38 +00:00
Eli Friedman
35432e5685 Add 3DNowA instructions. 
llvm-svn: 115477
 2010-10-03 20:23:13 +00:00
Chris Lattner
d03783eaf2 the immediate field of pshufw is actually an 8-bit field, not a 8-bit field that is sign extended. This fixes PR8288 
llvm-svn: 115473
 2010-10-03 19:09:13 +00:00
Rafael Espindola
49d508fd19 Jim Asked us to move DataLayout on ARM back to the most specialized classes. Do 
so and also change X86 for consistency.

Investigating if this can be improved a bit.

llvm-svn: 115469
 2010-10-03 18:59:45 +00:00
Chris Lattner
4599fd89fd add support for the prefetch/prefetchw instructions, move femms into 
the right file.  The assembler supports all the 3dnow instructions now,
but not the "3dnowa" ones.

llvm-svn: 115468
 2010-10-03 18:42:30 +00:00
Chris Lattner
6d6f84f99c what the heck, add support for the rest of the 3dNow! binary operations. 
llvm-svn: 115467
 2010-10-03 18:24:18 +00:00
Chris Lattner
8174253484 Implement support for the bizarre 3DNow! encoding (which is unlike anything 
else in X86), and add support for pavgusb.  This is apparently the
only instruction (other than movsx) that is preventing ffmpeg from building
with clang.

If someone else is interested in banging out the rest of the 3DNow! 
instructions, it should be quite easy now.

llvm-svn: 115466
 2010-10-03 18:08:05 +00:00
Evan Cheng
e8eec016c8 Major changes to Cortex-A9 itinerary. 
1. Model dual issues as two FUs.
2. Model the pipelines correctly: two symmetric ALUs, the multiplier is a
   dependent pipeline on ALU0.
The changes do not have much impact on codegen right now. But I plan to make
pre-RA scheduler multi-issue aware which should take good advantage of the
changes.

llvm-svn: 115457
 2010-10-03 02:03:59 +00:00
Rafael Espindola
e209fd8ab7 Implement a very basic PIC case. 
llvm-svn: 115454
 2010-10-03 00:46:57 +00:00
Bill Wendling
07640330f3 Cleanup. Get rid of extraneous variable. 
llvm-svn: 115453
 2010-10-03 00:46:06 +00:00
Chris Lattner
3d148e7e31 stub out a header to put 3dNow! instructions into. 
llvm-svn: 115429
 2010-10-02 23:06:23 +00:00
Chris Lattner
3c29a2b776 fix a regression introduced in r115243, in which the instruction 
backing int_x86_ssse3_pshuf_w got removed.  This caused PR8280.

llvm-svn: 115422
 2010-10-02 21:32:15 +00:00
Jakob Stoklund Olesen
8371c85032 Stop using LiveRange in MachineVerifier. 
llvm-svn: 115408
 2010-10-02 05:24:46 +00:00
Bob Wilson
ac095e1026 Fix a miscompile in 186.crafty for Thumb2 that was exposed by Evan's 
scheduling change in svn 115121.  The CriticalAntiDepBreaker had bad
liveness information.  It was calculating the KillIndices for one scheduling
region in a basic block, rescheduling that region so the KillIndices were
no longer valid, and then using those wrong KillIndices to make decisions
for the next scheduling region.  I've not been able to reduce a small
testcase for this.  Radar 8502534.

llvm-svn: 115400
 2010-10-02 01:49:29 +00:00
Nick Lewycky
2fd7de3006 Wind these directories back too. File adds and removes are properly represented 
in patches. :-(

llvm-svn: 115396
 2010-10-02 01:16:59 +00:00
Nick Lewycky
62ea532b38 Continue reverting r115363. 
llvm-svn: 115395
 2010-10-02 01:08:17 +00:00
Nick Lewycky
7103df7a51 Revert patches r115363 r115367 r115391 due to build breakage: 
llvm[2]: Updated LibDeps.txt because dependencies changed
llvm[2]: Checking for cyclic dependencies between LLVM libraries.
find-cycles.pl: Circular dependency between *.a files:
find-cycles.pl:   libLLVMMSP430AsmPrinter.a libLLVMMSP430CodeGen.a

llvm-svn: 115393
 2010-10-02 01:06:42 +00:00
Jim Grosbach
469a7a27d9 Update CMake files for recent AsmPrinter->InstPrinter changes. Can someone who 
is more familiar with CMake please review?

llvm-svn: 115391
 2010-10-02 00:39:56 +00:00
Eric Christopher
9e303eeb6f Start on lowering global addresses. 
llvm-svn: 115390
 2010-10-02 00:32:44 +00:00
Kevin Enderby
84d750a85c This adds a Darwin x86_64 relocation encoding for a subtraction expression 
where both symbols are "local", that is non-external symbols, and there is
no "base" for the symbols used in the expression, that is the section has
no non-temporary symbols.  This case looks like this:

% cat local_reloc_A-B.s
	.long 0
LB:	.long 1
	.long LA - LB - 4
	.long 2
LA:	.long 3

which llvm-mc will not encode without this patch, generates a "unsupported
local relocations in difference" error, but the Darwin assembler will
encode with relocation entries like this:

% otool -rv a.out l.out 
a.out:
Relocation information (__TEXT,__text) 2 entries
address  pcrel length extern type    scattered symbolnum/value
00000008 False long   False  SUB     False     1 (__TEXT,__text)
00000008 False long   False  UNSIGND False     1 (__TEXT,__text)

which is very similar to what is encoded when the symbols don't have the
leading 'L' and they are not temporary symbols.  Which llvm-mc and the
Darwin assembler will encoded like this:

Relocation information (__TEXT,__text) 2 entries
address  pcrel length extern type    scattered symbolnum/value
00000008 False long   True   SUB     False     B
00000008 False long   True   UNSIGND False     A

This is the missing relocation encoding needed to allow the Mach-O x86
Dwarf file and line table to be emitted.  So this patch also removes the
TODO from the if() statement in MCMachOStreamer::Finish() that didn't 
call MCDwarfFileTable::Emit() for 64-bit targets.

llvm-svn: 115389
 2010-10-02 00:13:41 +00:00
Jakob Stoklund Olesen
5cc6ca9d19 Drop the use of LiveInterval::iterator and the LiveRange class in 
RemoveCopyByCommutingDef.

llvm-svn: 115386
 2010-10-01 23:52:27 +00:00
Jakob Stoklund Olesen
cf5ec4b4cd When RemoveCopyByCommutingDef is creating additional identity copies, just use 
LiveInterval::MergeValueNumberInto instead of trying to extend LiveRanges and
getting it wrong.

This fixed PR8249 where a valno with a multi-segment live range was defined by
an identity copy created by RemoveCopyByCommutingDef. Some of the live
segments disappeared.

llvm-svn: 115385
 2010-10-01 23:52:25 +00:00
Jakob Stoklund Olesen
80ea35d2ac Pretty up the debug output during RemoveCopyByCommutingDef. 
llvm-svn: 115384
 2010-10-01 23:52:22 +00:00
Devang Patel
f612c0b23e Add support to let FE mark explict methods as explict in debug info. 
llvm-svn: 115378
 2010-10-01 23:31:40 +00:00
Jim Grosbach
77531e2727 Nuke trailing whitespace. 
llvm-svn: 115377
 2010-10-01 23:29:12 +00:00
Jim Grosbach
a158e3e6c1 PrintSpecial() can go away now. 
llvm-svn: 115376
 2010-10-01 23:27:48 +00:00
Eric Christopher
c1f6f9a730 Stub out constant GV handling, fixes C++ eh tests. 
llvm-svn: 115375
 2010-10-01 23:24:42 +00:00
Jim Grosbach
619f1c1cc5 Nuke the rest of the :comment references 
llvm-svn: 115373
 2010-10-01 23:21:38 +00:00
Jim Grosbach
8440cebbe9 Nuke a bunch of no-longer-needed comment-only asm strings. 
llvm-svn: 115370
 2010-10-01 23:09:33 +00:00
Jim Grosbach
869c188757 Now that the asmprinter itself isn't in the subdir, rename 'AsmPrinter' to 
'InstPrinter' to fall into line with the other MC-ized assembly printer
using targets.

llvm-svn: 115367
 2010-10-01 22:57:18 +00:00
Evan Cheng
b068d1483a Fix r115332: correctly model AGU / NEON mux. 
llvm-svn: 115365
 2010-10-01 22:52:29 +00:00
Owen Anderson
95581657a4 Thread the determination of branch prediction hit rates back through the if-conversion heuristic APIs. For now, 
stick with a constant estimate of 90% (branch predictors are good!), but we might find that we want to provide
more nuanced estimates in the future.

llvm-svn: 115364
 2010-10-01 22:45:50 +00:00
Jim Grosbach
cb1fe6879e Move the asmprinter and MC lowering out of the AsmPrinter (soon to be 
InstPrinter) subdir

llvm-svn: 115363
 2010-10-01 22:45:38 +00:00
Jim Grosbach
2143c9d321 Rename the AsmPrinter directory to InstPrinter for those targets that have 
been MC-ized for assembly printing. MSP430 is mostly so, but still has the
asm printer and lowering code in the printer subdir for the moment.

llvm-svn: 115360
 2010-10-01 22:39:28 +00:00
Evan Cheng
0da8dff3c7 Fix scheduling infor for vmovn and vshrn which I broke accidentially. 
llvm-svn: 115354
 2010-10-01 21:48:06 +00:00
Evan Cheng
cf5ed3cd53 Add operand cycles for vldr / vstr. 
llvm-svn: 115353
 2010-10-01 21:40:30 +00:00
Eric Christopher
669452e47f Direct calls only for arm fast isel for now. 
llvm-svn: 115350
 2010-10-01 21:33:12 +00:00
Evan Cheng
fc1aee5b3c NEON scheduling info fix. vmov reg, reg are single cycle instructions. 
llvm-svn: 115344
 2010-10-01 20:50:58 +00:00
Eric Christopher
7daf669802 Fix thinko on store instructions. Fixes test_indvars failure. 
llvm-svn: 115342
 2010-10-01 20:46:04 +00:00
Owen Anderson
e93e24ee5d Make the spelling of the flags for old-style if-conversion heuristics consistent between ARM and Thumb2. 
llvm-svn: 115341
 2010-10-01 20:33:47 +00:00
Owen Anderson
d6aa3da08e Provide an option to restore old-style if-conversion heuristics for Thumb2. 
llvm-svn: 115339
 2010-10-01 20:28:06 +00:00
Owen Anderson
a88628cd72 Now that the profitable bits of EnableFullLoadPRE have been enabled by default, rip out the remainder. 
Anyone interested in more general PRE would be better served by implementing it separately, to get real
anticipation calculation, etc.

llvm-svn: 115337
 2010-10-01 20:02:55 +00:00
Evan Cheng
c7c6c2d04d Per Cortex-A9 pipeline diagram. AGU (core load / store issue) and NEON/FP issue are multiplexed. Model it correctly. 
llvm-svn: 115332
 2010-10-01 19:41:46 +00:00
Devang Patel
1f2abb3af0 Fix code gen crash reported in PR 8235. We still lose debug info for the unused argument here. This is a known limitation recorded debuginfo-tests/trunk/dbg-declare2.ll function 'f6' test case. 
llvm-svn: 115323
 2010-10-01 19:00:44 +00:00
Jim Grosbach
1a837b8495 grammar 
llvm-svn: 115314
 2010-10-01 14:57:48 +00:00
Benjamin Kramer
65131b20b4 Delete token *after* reading from it. 
llvm-svn: 115311
 2010-10-01 12:25:27 +00:00
Gabor Greif
7d9b24e1ef typo 
llvm-svn: 115310
 2010-10-01 10:32:19 +00:00
Kalle Raiskila
c6bdc97934 Zap some redundant 'ori $?, $?, 0' from SPU. 
Also remove some code that died in the process.
One now non-existant ori is checked for.

llvm-svn: 115306
 2010-10-01 09:20:01 +00:00
Eric Christopher
792e8112b0 Fix the other half of the alignment changing issue by making sure that the 
memcpy alignment is the minimum of the incoming alignments.

Fixes PR 8266.

llvm-svn: 115305
 2010-10-01 09:02:05 +00:00
Chris Lattner
97f71e71c9 fix typo 
llvm-svn: 115300
 2010-10-01 06:54:02 +00:00
Chris Lattner
bf0f375aba fix PR8267 - Instcombine shouldn't optimizer away volatile memcpy's. 
llvm-svn: 115296
 2010-10-01 05:51:02 +00:00
Chris Lattner
01c6e93ea4 fix rdar://8494845 + PR8244 - a miscompile exposed by my patch in r101350 
llvm-svn: 115294
 2010-10-01 05:36:09 +00:00
Dale Johannesen
f97d3fcccd Attempt to outwit overly smart compiler. 
llvm-svn: 115251
 2010-10-01 00:21:24 +00:00
Eric Christopher
48606deb11 Implement double return values in calls. Fixes 
SingleSource/Regression/C/casts.c.

llvm-svn: 115246
 2010-10-01 00:00:11 +00:00
Dale Johannesen
c14a1eda84 Massive rewrite of MMX: 
The x86_mmx type is used for MMX intrinsics, parameters and
return values where these use MMX registers, and is also
supported in load, store, and bitcast.

Only the above operations generate MMX instructions, and optimizations
do not operate on or produce MMX intrinsics. 

MMX-sized vectors <2 x i32> etc. are lowered to XMM or split into
smaller pieces.  Optimizations may occur on these forms and the
result casted back to x86_mmx, provided the result feeds into a
previous existing x86_mmx operation.

The point of all this is prevent optimizations from introducing
MMX operations, which is unsafe due to the EMMS problem.

llvm-svn: 115243
 2010-09-30 23:57:10 +00:00
Daniel Dunbar
c21ab2a74c Add an explicit initialization to work around what appears to be a valgrind 
false positive, at least on Darwin. I haven't filed this, but you can feel free.

llvm-svn: 115242
 2010-09-30 23:56:49 +00:00
Owen Anderson
918c558636 Temporarily add a flag to make it easier to compare the new-style ARM if 
conversion heuristics to the old-style ones.

llvm-svn: 115239
 2010-09-30 23:48:38 +00:00
Jim Grosbach
45de3f6747 Clean up asm writer usage for x86 and msp430 to flag that the writer should 
use MC instructions in the printInstruction() method via the tablegen flag
for it rather than a #define prior to including the autogenerated bits.

llvm-svn: 115238
 2010-09-30 23:40:25 +00:00
Eric Christopher
0c94293fb3 Movement and cleanup. 
llvm-svn: 115225
 2010-09-30 22:34:19 +00:00
Nick Lewycky
f469b071a2 Pacify a noisy compiler, and sink this variable declaration closer to its uses. 
llvm-svn: 115206
 2010-09-30 21:04:13 +00:00
Owen Anderson
5adba2c2ff We do want to allow LoadPRE to perform LICM-like transformations: we already consider PHI nodes to be negligible for 
code size (making this transform code size neutral), and it allows us to hoist values out of loops, which is always
a good thing.

llvm-svn: 115205
 2010-09-30 20:53:04 +00:00
Jakob Stoklund Olesen
603950c4af Try again to disable critical edge splitting in CodeGenPrepare. 
The bug that broke i386 linux has been fixed in r115191.

llvm-svn: 115204
 2010-09-30 20:51:52 +00:00
Eric Christopher
2d33066699 Start of generalized call support for ARM fast isel. 
llvm-svn: 115203
 2010-09-30 20:49:44 +00:00
Talin
ee60bd194c Allow llvm.gcroot to work with non-pointer allocas. 
llvm-svn: 115198
 2010-09-30 20:23:47 +00:00
Rafael Espindola
5aae0d6863 Factor some logic into ShouldRelocOnSymbol. This simplifies the code and 
fixes some cases where we were producing relocations with at symbol that
should use a section instead.

llvm-svn: 115194
 2010-09-30 20:18:35 +00:00
Jim Grosbach
2bf1c488de Nuke a few more unused asm strings 
llvm-svn: 115193
 2010-09-30 19:53:58 +00:00
Jakob Stoklund Olesen
8f4d623f9a When isel is emitting instructions for an x86 target without CMOV, the CFG is 
edited during emission.

If the basic block ends in a switch that gets lowered to a jump table, any
phis at the default edge were getting updated wrong. The jump table data
structure keeps a pointer to the header blocks that wasn't getting updated
after the MBB is split.

This bug was exposed on 32-bit Linux when disabling critical edge splitting in
codegen prepare.

The fix is to uipdate stale MBB pointers whenever a block is split during
emission.

llvm-svn: 115191
 2010-09-30 19:44:31 +00:00
Jim Grosbach
8bf43f57d4 Move getPointerSize() to the base class since it's not dependent on MachO 
vs. ELF

llvm-svn: 115180
 2010-09-30 17:45:51 +00:00
Jim Grosbach
5d93ed90e5 Remove extraneous ';' 
llvm-svn: 115176
 2010-09-30 17:19:17 +00:00
Chris Lattner
df2f5c0a40 preemptively add the rest of the non-n fpstack instructions. 
llvm-svn: 115168
 2010-09-30 17:11:29 +00:00
Jim Grosbach
52b5709c99 The asm strings are never used at all, so just nuke 'em entirely. 
llvm-svn: 115160
 2010-09-30 16:56:53 +00:00
Kevin Enderby
767a9365f0 This is the last major patch to implement support for the .loc directive 
and output the dwarf line number tables.  This contains the code to emit and
encode the dwarf line tables from the previously gathered information in the
MCLineSection objects.  This contains all the details to encode the line and
address deltas into the dwarf line table.

To do this an MCDwarfLineAddrFragment has been added.

Also this moves the interface code out of Mach-O streamer into
MCDwarf so it should be useable by other object file formats.

There is now one call to be made from an MCObjectStreamer
EmitInstruction() method:
   MCLineEntry::Make(this, getCurrentSection());
to create a line entry after each instruction is assembled.

And one call call to be made from an MCObjectStreamer Finish() method:
   MCDwarfFileTable::Emit(this, DwarfLineSection);
when getContext().hasDwarfFiles() is true and is passed a object file specific
MCSection where to emit the dwarf file and the line tables.

This appears to now be correct for 32-bit targets, at least x86.  But the
relocation entries for 64-bit Darwin needs some further work which is next
up to work on.  So for now the 64-bit Mach-O target does not output the
dwarf file and line tables.

llvm-svn: 115157
 2010-09-30 16:52:03 +00:00
Chris Lattner
8e7a4b7b57 implement support for finit, PR8258 
llvm-svn: 115156
 2010-09-30 16:42:53 +00:00
Kevin Enderby
0620ec51f6 Changes EvaluateAsAbsolute() to return the "current value" of the expression 
if we are given a Layout object, even in cases when the value is not fixed.
This will be needed by the final patch for the dwarf .loc support to size a
new MCDwarf fragment needed to build and emit dwarf line number tables.

llvm-svn: 115155
 2010-09-30 16:42:21 +00:00
Chris Lattner
fecf3a7717 add support for fstcw, PR8259 
llvm-svn: 115154
 2010-09-30 16:39:29 +00:00
Kevin Enderby
dd3306fcb5 Adds getPointerSize() to the AsmBackend which will be needed by the final patch 
for the dwarf .loc support to emit dwarf line number tables.

llvm-svn: 115153
 2010-09-30 16:38:07 +00:00
Benjamin Kramer
3f7e313552 Grow BumpPtrAllocator's slab size dynamically if we allocated many slabs. This 
reduces the amount of malloc calls and may reduce memory overhead.

Some numbers:
ASTContext stats, clang -cc1 -disable-free -fsyntax-only Cocoa_h.m
without dynamic growth                          |  with dynamic growth
Number of memory regions: 3158                  |  Number of memory regions: 432
Bytes used: 12333185                            |  Bytes used: 12333185
Bytes allocated: 12935168                       |  Bytes allocated: 12800000
Bytes wasted: 601983 (includes alignment, etc)  |  Bytes wasted: 466815 (includes alignment, etc)

ASTContext stats, clang -cc1 -disable-free -fsyntax-only on clang's ASTReader.cpp
without dynamic growth                          |  with dynamic growth
Number of memory regions: 10987                 |  Number of memory regions: 551
Bytes used: 42910356                            |  Bytes used: 42910356
Bytes allocated: 45002752                       |  Bytes allocated: 44711936
Bytes wasted: 2092396 (includes alignment, etc) |  Bytes wasted: 1801580 (includes alignment, etc)

llvm-svn: 115151
 2010-09-30 16:18:28 +00:00
Jim Grosbach
37fbea8ac9 80 column fix 
llvm-svn: 115149
 2010-09-30 15:25:22 +00:00
Jason W Kim
b181166ffc Fix two tiny issues (ARM does not need COFF) and comment sanity. 
llvm-svn: 115147
 2010-09-30 14:58:19 +00:00
Benjamin Kramer
d1710d7fb3 Tighten up prototype verification of strchr and strrchr to avoid a crash in the very unlikely case that someone passes an integer > i64 to strchr. 
llvm-svn: 115144
 2010-09-30 11:21:59 +00:00
Chandler Carruth
85a55025d8 Silence a GCC warning about not handling all flags in this switch, we 
specifically assert on unexpected flags.

llvm-svn: 115143
 2010-09-30 10:59:51 +00:00
Jan Wen Voung
7df9bf0092 Move logic of determining ELF entsize from the .s printer to initialization 
time. That way, the EntrySize field is initialized for other code paths, 
namely, the .ll -> .o code path.

llvm-svn: 115141
 2010-09-30 05:59:22 +00:00
Jim Grosbach
4ad95fa930 trailing whitespace 
llvm-svn: 115136
 2010-09-30 03:21:00 +00:00
Jim Grosbach
5b0ae02149 Remove misplaced ';'. Make buildbots happy, hopefully. 
llvm-svn: 115135
 2010-09-30 03:20:34 +00:00
Rafael Espindola
480ee577ad Correctly produce R_X86_64_32 or R_X86_64_32S. 
With this patch in

movq    $foo, foo(%rip)
foo:
.long   foo

We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.

llvm-svn: 115134
 2010-09-30 03:11:42 +00:00
Jason W Kim
7822e6aab5 Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile() 
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.

llvm-svn: 115133
 2010-09-30 02:45:56 +00:00
Jan Wen Voung
0d25ddb1de Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when 
constructing a section. Test for a few cases also included.

llvm-svn: 115132
 2010-09-30 02:41:46 +00:00
Rafael Espindola
3e2630deca Make it possible for the MCObjectWriter to decide if a given fixup is fully 
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.

Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.

llvm-svn: 115131
 2010-09-30 02:22:20 +00:00
Jim Grosbach
ad67153eb3 Go ahead and jump! 
Now that the MC lowering handles the expansion of the pseudos, kill the horrible
blobs of text.

llvm-svn: 115130
 2010-09-30 02:18:06 +00:00
Jason W Kim
6d7784e5f5 I added a new file ARMAsmBackend which stubs out in similar ways to 
the eqv X86 class.
For now, I split the ELFARMAsmBackend from the DarwinARMAsmBackend
(also mimicking X86)

Tested against -r115126

llvm-svn: 115129
 2010-09-30 02:17:26 +00:00
Jim Grosbach
3a7ca3301b Now that the pseudos that needed this are all custom lowered, we can go back 
to an empty PrintSpecial()

llvm-svn: 115128
 2010-09-30 02:02:22 +00:00
Jim Grosbach
efad965653 Nuke it from orbit. It's the only way to be sure. 
(Kill the dead non-MC asm printer for the ARM target.)

llvm-svn: 115127
 2010-09-30 01:57:53 +00:00
Jan Wen Voung
4b4807d984 Test commit - Deleted some whitespace at the end of a line. 
llvm-svn: 115122
 2010-09-30 01:09:20 +00:00
Evan Cheng
fa5d40dbff ARM instruction itinerary fixes: 
1. Cortex-a9 8-bit and 16-bit loads / stores AGU cycles are 1 cycle longer than 32-bit ones.
2. Cortex-a9 is out-of-order so model all read cycles as cycle 1.
3. Lots of other random fixes for A8 and A9.

llvm-svn: 115121
 2010-09-30 01:08:25 +00:00
Benjamin Kramer
2a44a539e2 Add constant folding for strspn and strcspn to SimplifyLibCalls. 
llvm-svn: 115116
 2010-09-30 00:58:35 +00:00
Francois Pichet
0c653599a9 Revert r114320(move file = copy + delete on Win32). r115040 is a better solution for the Win32 ACCESS_DENIED lit error. 
llvm-svn: 115114
 2010-09-30 00:44:58 +00:00
Benjamin Kramer
476bfb7a10 Add strpbrk folding to SimplifyLibCalls. 
llvm-svn: 115111
 2010-09-29 23:52:12 +00:00
Nick Lewycky
711a5e60fa Silence compiler warning. 
llvm-svn: 115107
 2010-09-29 23:32:20 +00:00
Eric Christopher
ba01048ae2 Refactor arm fast isel libcall handling so that pieces can be used 
for generic call handling.

llvm-svn: 115105
 2010-09-29 23:11:09 +00:00
Devang Patel
41e2a94595 Let FE mark a variable as artificial variable. 
llvm-svn: 115102
 2010-09-29 23:07:21 +00:00
Eric Christopher
80d620fb38 Noticed by inspection when looking for other cmov bits. 
llvm-svn: 115100
 2010-09-29 23:00:29 +00:00
Evan Cheng
b44d480808 Model Cortex-a9 load to SUB, RSB, ADD, ADC, SBC, RSC, CMN, MVN, or CMP 
pipeline forwarding path.

llvm-svn: 115098
 2010-09-29 22:42:35 +00:00
Benjamin Kramer
cf690de5bb Silence msvc warnings. 
llvm-svn: 115097
 2010-09-29 22:38:50 +00:00
Benjamin Kramer
cec2603ec2 Simplify the loop in StrChrOptimizer. FileCheckize test. 
llvm-svn: 115095
 2010-09-29 22:29:12 +00:00
Eric Christopher
eb578cf724 Add a convenience variable so I'm not chasing all over looking for 
a context.

llvm-svn: 115094
 2010-09-29 22:24:45 +00:00
Benjamin Kramer
75a825ff6b Teach SimplifyLibCalls how to optimize strrchr. 
llvm-svn: 115091
 2010-09-29 21:50:51 +00:00
Devang Patel
f600d9f0ed Add support to let FE encode method access specifier. 
llvm-svn: 115089
 2010-09-29 21:44:16 +00:00
Devang Patel
bbd003ab48 Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial. 
This is a backword compatible change.

llvm-svn: 115084
 2010-09-29 21:04:46 +00:00
Owen Anderson
267ca58af3 UnreachableBlockElim could incorrectly return false when it had not modified the CFG, but HAD modified some PHI nodes. Fixes PR8174. 
llvm-svn: 115083
 2010-09-29 20:57:19 +00:00
Owen Anderson
8e70968a13 Fix PR8247: JumpThreading can cause a block to become unreachable while still having predecessor, if it is part of a self-loop. 
Because of this, we cannot use the Simplify* APIs, as they can assert-fail on unreachable code.  Since it's not easy to determine
if a given threading will cause a block to become unreachable, simply defer simplifying simplification to later InstCombine and/or
DCE passes.

llvm-svn: 115082
 2010-09-29 20:34:41 +00:00
Benjamin Kramer
963980649e Remove PointerTracking from cmakelists … 
llvm-svn: 115076
 2010-09-29 19:39:50 +00:00
Devang Patel
fd6665e8aa Assign DW_ACCESS_public accessibility attribute to members by default. 
llvm-svn: 115067
 2010-09-29 19:08:08 +00:00
Jim Grosbach
fd8705ab4a Add specializations of addrmode2 that allow differentiating those forms 
which require the use of the shifter-operand. This will be used to split
the ldr/str instructions such that those versions needing the shifter operand
can get a different scheduling itenerary, as in some cases, the use of the
shifter can cause different scheduling than the simpler forms.

llvm-svn: 115066
 2010-09-29 19:03:54 +00:00
Nick Lewycky
a533bd63e6 Add parens to fix GCC warning: 
lib/Target/X86/X86MCCodeEmitter.cpp: 190: error: suggest parentheses around '&&' within '||'

llvm-svn: 115064
 2010-09-29 18:56:57 +00:00
Chris Lattner
b7bfd3de07 remove PointerTracking from mainline, Edwin is going to move it out to ClamAV 
for LLVM 2.9

llvm-svn: 115062
 2010-09-29 18:43:27 +00:00
Chris Lattner
7f466d63e0 implement rdar://8491845 - Gas supports commuted forms of non-commutable instructions. 
llvm-svn: 115061
 2010-09-29 18:39:16 +00:00
Owen Anderson
8d6be4804f Revert r114919, which caused some serious regressions on ARM. 
llvm-svn: 115053
 2010-09-29 18:05:19 +00:00
Bob Wilson
d16aaccb05 Increase ARM APCS preferred alignment for i64 and f64 from 32 bits to 64 bits. 
LDM/STM instructions can run one cycle faster on some ARM processors if the
memory address is 64-bit aligned.  Radar 8489376.

llvm-svn: 115047
 2010-09-29 17:54:10 +00:00
Jim Grosbach
9939090a14 Add braces for legibility. 
llvm-svn: 115043
 2010-09-29 17:32:29 +00:00
Jim Grosbach
fe21554145 One Printer to rule them all, One Printer to find them, 
One Printer to lower them all and in the back end bind them.


(Remove option to use the old non-MC asm printer.)

llvm-svn: 115038
 2010-09-29 15:23:40 +00:00
Rafael Espindola
96509a5550 Move "local commons" to the end of .bss to match the gnu as behavior. 
llvm-svn: 115037
 2010-09-29 14:52:01 +00:00
Gabor Greif
e1de402213 improve heuristics to find the 'and' corresponding to 'tst' to also catch opportunities on thumb2 
added some doxygen on the way

llvm-svn: 115033
 2010-09-29 10:12:08 +00:00
Chris Lattner
9c58de2dc4 fix rdar://8490728 - llvm-mc rejects gpr64 form of 'movmskpd' 
llvm-svn: 115029
 2010-09-29 05:05:03 +00:00
Chris Lattner
890c21a20a add assembler support for the cvtsd2sil/cvtsd2siq mnemonics, rdar://8456382 
llvm-svn: 115027
 2010-09-29 04:55:40 +00:00
Chris Lattner
54939ddf1f make the x86 mccode emitter emit the 0x67 and 0x66 prefix bytes in the same 
order as cctools for diffability.

llvm-svn: 115022
 2010-09-29 03:43:43 +00:00
Chris Lattner
13354d7bbc implement support for 32-bit address operands in 64-bit mode, which 
are defined to emit the 0x67 prefix byte.  rdar://8482675

llvm-svn: 115021
 2010-09-29 03:33:25 +00:00
Michael J. Spencer
9c138864bc MC-COFF: Fix symbol storage class for globals 
llvm-svn: 115020
 2010-09-29 03:13:41 +00:00
Chris Lattner
c14d59589c add basic avx support to the disassembler, also teach it about ssmem/sdmem 
operands.

With this done, we can remove the _Int suffixes from the round instructions
without the disassembler blowing up.  This allows the assembler to support
them, implementing rdar://8456376 - llvm-mc rejects 'roundss'

llvm-svn: 115019
 2010-09-29 02:57:56 +00:00
Chris Lattner
f90296b045 add asmparser support for cvttpd2dq by removing some Int_ prefixes. 
Clean up cvttps2dq by removing some redundant implementations of the
same instruction.  rdar://8456382

llvm-svn: 115018
 2010-09-29 02:36:32 +00:00
Chris Lattner
e5c5c8dc1f implement rdar://8456382 - cvtsd2si support, by removing some Int_ prefixes. 
llvm-svn: 115017
 2010-09-29 02:24:57 +00:00
Chris Lattner
cbecb9a4d3 implement rdar://8456378 and PR7557 - support for the fstsw, 
an instruction that requires a WHOLE NEW wonderful kind of alias.

llvm-svn: 115015
 2010-09-29 01:50:45 +00:00
Chris Lattner
9b9a847b8c change the protocol TargetAsmPArser::MatchInstruction method to take an 
MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.

llvm-svn: 115014
 2010-09-29 01:42:58 +00:00
Eric Christopher
e81be3c669 Rework comparison handling to set a register on true/false. This avoids 
problems with phi-nodes in blocks that have hard and not virtual registers.

Accordingly update branch handling to compensate.

llvm-svn: 115013
 2010-09-29 01:14:47 +00:00