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Commit Graph

50080 Commits

Author SHA1 Message Date
Chris Lattner
b89551026b make sure that arm nonlazypointers are aligned properly
llvm-svn: 78573
2009-08-10 18:01:34 +00:00
Chris Lattner
49b8a24b7e Fix a weird ppc64-specific link error during an llvm-gcc build:
ld: bad offset (0x00000091) for lo14 instruction pic-base fix-up in ___popcountdi2 from libgcc/./_popcountsi2_s.o

The problem is that the non lazy symbol pointers need to be 8 byte aligned
on ppc64 and .section doesn't have an implicit alignment like ".non_lazy_symbol_pointer"
does.

llvm-svn: 78572
2009-08-10 17:58:51 +00:00
Chris Lattner
7ee4b3a2c0 fix some warnings for the MSVC build, by Yonggang Luo!
llvm-svn: 78571
2009-08-10 17:35:42 +00:00
Dan Gohman
bac3301ce4 Make this comment more closely reflect the code.
llvm-svn: 78569
2009-08-10 16:50:32 +00:00
Dan Gohman
fe048746c2 Add nounwind keywords.
llvm-svn: 78568
2009-08-10 16:48:40 +00:00
David Greene
91e0e06670 Add support for printing loop structure information in asm comments.
This definitely slows down asm output so put it under an -asm-exuberant
flag.

This information is useful when doing static analysis of performance
issues.

llvm-svn: 78567
2009-08-10 16:38:07 +00:00
Devang Patel
cb0d71ad91 Clarify limitations of a ModulePass requiring a FunctionPass.
llvm-svn: 78566
2009-08-10 16:37:29 +00:00
Daniel Dunbar
5ae2827607 llvm-mc/AsmParser: Check for matches with super classes when matching
instruction operands.

llvm-svn: 78565
2009-08-10 16:05:47 +00:00
David Goodwin
b2f53ed68a Checkpoint scheduling itinerary changes.
llvm-svn: 78564
2009-08-10 15:56:13 +00:00
David Goodwin
3245141543 Post RA scheduler changes. Introduce a hazard recognizer that uses the target schedule information to accurately model the pipeline. Update the scheduler to correctly handle multi-issue targets.
llvm-svn: 78563
2009-08-10 15:55:25 +00:00
Evan Cheng
0a08d1bb9c Watch out for empty BB.
llvm-svn: 78562
2009-08-10 08:10:13 +00:00
Evan Cheng
1ecffadc8d rev, rev16, and revsh do not set CPSR.
llvm-svn: 78561
2009-08-10 07:58:45 +00:00
Evan Cheng
87030de948 Duh. Most 16-bit Thumb rr instructions are two-address. Fix table.
llvm-svn: 78560
2009-08-10 07:20:37 +00:00
Evan Cheng
e76bc4a520 CPSR can be livein; transfer predicate operands correctly; tMUL is two-address.
llvm-svn: 78559
2009-08-10 06:57:42 +00:00
Evan Cheng
b0a0b99918 Add support for folding loads / stores into 16-bit moves used by Thumb2.
llvm-svn: 78558
2009-08-10 06:32:05 +00:00
Evan Cheng
b05ad1d066 80 col violation.
llvm-svn: 78557
2009-08-10 05:51:48 +00:00
Evan Cheng
f54e50e4e8 Use tMOVgpr2gpr instead of t2MOVr.
llvm-svn: 78556
2009-08-10 05:49:43 +00:00
Daniel Dunbar
86ddd268b4 Add support for a user supplied pointer argument to llvm_install_error_handler.
llvm-svn: 78553
2009-08-10 03:36:26 +00:00
Bruno Cardoso Lopes
5347f22cb1 Move ConstantExpr handling to ResolveConstantExpr method and also
add support for PtrToInt, Add, Mul.

llvm-svn: 78552
2009-08-10 03:32:40 +00:00
Evan Cheng
ad380aa97a Add support to reduce most of 32-bit Thumb2 arithmetic instructions.
llvm-svn: 78550
2009-08-10 02:37:24 +00:00
Evan Cheng
09cacea9fb Always use the 16-bit tMOVgpr2gpr instead of the 32-bit t2MOVr.
llvm-svn: 78549
2009-08-10 02:06:53 +00:00
Chris Lattner
cc70d578be Make the big switch: Change MCSectionMachO to represent a section *semantically*
instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?

llvm-svn: 78547
2009-08-10 01:39:42 +00:00
Chris Lattner
e024b843cd add a simple back() method to StringRef.
llvm-svn: 78544
2009-08-10 00:44:02 +00:00
Benjamin Kramer
259a140521 Use abs64 instead abs; some platforms don't have a 64-bit abs overload. Noticed by Yonggang Luo!
llvm-svn: 78543
2009-08-09 22:37:07 +00:00
Evan Cheng
390e1927bf Add support to convert 32-bit instructions to 16-bit non-two-address ones.
llvm-svn: 78540
2009-08-09 19:17:19 +00:00
Chris Lattner
4415a43b2f always end a section with \n on elf.
llvm-svn: 78534
2009-08-09 15:31:10 +00:00
Daniel Dunbar
4a1dbf6b74 llvm-mc/AsmParser: Fix thinko in ClassInfo::operator<.
llvm-svn: 78533
2009-08-09 08:23:23 +00:00
Daniel Dunbar
0984b029f8 llvm-mc/AsmParser: Add hack to ignore Int_* and *_Int instructions for now, to
make it easier to see interesting ambiguities.
 - Also, check that user doesn't try to redefine the super class. This is a wart
   in the current design, in that assembler match classes aren't explicitly
   declared somewhere (so there isn't a unique place to declare the super
   class). This should probably be fixed.

llvm-svn: 78532
2009-08-09 08:19:00 +00:00
Daniel Dunbar
7c61d93b42 Disable this test for now, we don't check for super classes when matching yet.
llvm-svn: 78531
2009-08-09 07:35:56 +00:00
Daniel Dunbar
15e6a41728 llvm-mc/AsmParser: Implement user defined super classes.
- We can now discriminate SUB32ri8 from SUB32ri, for example.

llvm-svn: 78530
2009-08-09 07:20:21 +00:00
Bob Wilson
8b13d5c8e3 Add tests for Neon VZIP and VUZP instructions.
llvm-svn: 78529
2009-08-09 06:48:29 +00:00
Bob Wilson
06b61e2598 Add a test for Neon VTRN instructions.
llvm-svn: 78528
2009-08-09 06:30:46 +00:00
Daniel Dunbar
1d76f6d593 llvm-mc/AsmParser: Separate instruction ordering for ambiguity detection.
- We want the ordering operation to be simple, since we run it on every
   match. The old ordering is also not a strict weak ordering when there are
   ambiguities, which makes MSVC unhappy.

 - While we are at it, detect all ambiguities instead of just the adjacent
   ones. There are actually 655, for X86.

llvm-svn: 78526
2009-08-09 06:05:33 +00:00
Bob Wilson
326491672e Change Neon table lookup (VTBL) and table extension (VTBX) intrinsics to
take the table vectors as separate arguments, instead of the previous
approach where they were combined into one big vector.

llvm-svn: 78525
2009-08-09 06:03:09 +00:00
Daniel Dunbar
5a6c69d37d Extend comment on ParserMatchClass .td field, and add some missing
classes for X86.

llvm-svn: 78524
2009-08-09 06:00:04 +00:00
Daniel Dunbar
dff8502076 llvm-mc/AsmParser: Define match classes in the .td file.
-2 FIXMEs.

llvm-svn: 78523
2009-08-09 05:18:30 +00:00
Daniel Dunbar
1785cfe884 llvm-mc/AsmParser: Sketch infrastructure for ordering instructions & detecting
ambiguities.
 - Currently there are 483 ambiguities to resolve. :)

llvm-svn: 78522
2009-08-09 04:00:06 +00:00
Daniel Dunbar
ff95e6d5f8 STLExtras: Add less_ptr.
llvm-svn: 78521
2009-08-09 03:36:59 +00:00
Chris Lattner
681f6ab2e1 fix edito
llvm-svn: 78520
2009-08-08 23:43:55 +00:00
Daniel Dunbar
1b075b4a8b llvm-mc/AsmMatcher: Tweak string matcher (missed a newline).
llvm-svn: 78518
2009-08-08 23:43:16 +00:00
Chris Lattner
9e2c3aa666 sink the 'name' and 'isdirective' state out of MCSection into its derived classes.
This totally optimizes PIC16 sections by not having an 'isdirective' bit anymore!! ;-)

llvm-svn: 78517
2009-08-08 23:39:42 +00:00
Anton Korobeynikov
44fa9f179c Use subclassing to print lane-like immediates (w/o hash) eliminating
'no_hash' modifier. Hopefully this will make Daniel happy :)

llvm-svn: 78514
2009-08-08 23:10:41 +00:00
Daniel Dunbar
50e3d6ae53 llvm-mc/AsmMatcher: Tweak string matcher.
- Track whether we need to insert an explicit 'break'.

 - Invert conditional when matching a single prefix to reduce
   nesting/bracing/breaking.

 - wc -l of X86GenAsmMatcher.inc decreased by 10%. :)

llvm-svn: 78513
2009-08-08 22:57:25 +00:00
Chris Lattner
888b0d483c remove nondeterminstic test.
llvm-svn: 78512
2009-08-08 22:56:37 +00:00
Chris Lattner
df9c45048d add a note about dead zero extends.
llvm-svn: 78511
2009-08-08 22:46:59 +00:00
Chris Lattner
2849883bd5 1. Make MCSection an abstract class.
2. Move section switch printing to MCSection virtual method which takes a
   TAI.  This eliminates textual formatting stuff from TLOF.
3. Eliminate SwitchToSectionDirective, getSectionFlagsAsString, and 
   TLOFELF::AtIsCommentChar.

llvm-svn: 78510
2009-08-08 22:41:53 +00:00
Chris Lattner
f8ab7ad73a switch this to create coff sections for now, it doesn't really matter for
llvm-mc's purpose yet and we'll want to switch to creating semantic sections
at some point.

llvm-svn: 78509
2009-08-08 22:38:48 +00:00
Eric Christopher
40031ed766 Add crc32 instruction and intrinsics. Add a new class of prefix
bytes for F2 0F 38 and propagate. Add a FIXME for a set
of possibilities which correspond to intrinsics already used.

New test.

llvm-svn: 78508
2009-08-08 21:55:08 +00:00
Jakob Stoklund Olesen
ed8219b3a1 Add support for READCYCLECOUNTER in Blackfin back-end.
llvm-svn: 78506
2009-08-08 21:42:22 +00:00
Chris Lattner
8329a281b2 add new PIC16Section class, this time hopefully not breaking the build :)
llvm-svn: 78505
2009-08-08 21:37:01 +00:00