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Author SHA1 Message Date
David Blaikie
1040475c84 Reword comment based on feedback by Duncan Sands. 
llvm-svn: 148809
 2012-01-24 16:18:30 +00:00
Chris Lattner
380a325520 basic instcombine support for CDS. 
llvm-svn: 148806
 2012-01-24 14:31:22 +00:00
Chris Lattner
c67dced045 C++, CBE, and TLOF support for ConstantDataSequential 
llvm-svn: 148805
 2012-01-24 14:17:05 +00:00
Chris Lattner
70c46f210a Rearrange argument order of ::get methods so that LLVMContext comes first, 
add a ConstantDataArray::getString method that corresponds to the (to be
removed) StringRef version of ConstantArray::get, but is dramatically more 
efficient.

llvm-svn: 148804
 2012-01-24 14:04:40 +00:00
Elena Demikhovsky
ee8c87b433 ZERO_EXTEND operation is optimized for AVX. 
v8i16 -> v8i32, v4i32 -> v4i64 - used vpunpck* instructions.

llvm-svn: 148803
 2012-01-24 13:54:13 +00:00
Chris Lattner
9713727d0b add more support for ConstantDataSequential 
llvm-svn: 148802
 2012-01-24 13:41:11 +00:00
Evgeniy Stepanov
a0474f4619 An option to selectively enable part of ARM EHABI support. 
This change adds an new option --arm-enable-ehabi-descriptors that
enables emitting unwinding descriptors. This provides a mode with a
working backtrace() without the (currently broken) exception support.

llvm-svn: 148800
 2012-01-24 13:05:33 +00:00
Benjamin Kramer
06164017c0 Bit pack DIE structures better. 
16 bits are sufficient to store attributes, tags and forms.

llvm-svn: 148799
 2012-01-24 12:08:28 +00:00
Eric Christopher
15458de186 Fix the testcases for the previous patch. 
rdar://10278198

llvm-svn: 148795
 2012-01-24 10:11:49 +00:00
Eric Christopher
afc99847bf Remove generation of DW_AT_sibling. Nothing as far as I can tell uses it. 
Saves about 1.5% on debug info size.

rdar://10278198

llvm-svn: 148794
 2012-01-24 09:43:28 +00:00
Chris Lattner
55e4ae9dcd Add AsmPrinter (aka MCLowering) support for ConstantDataSequential, 
and clean up some other misc stuff.  Unlike ConstantArray, we will
prefer to emit .fill directives for "String" arrays that all have
the same value, since they are denser than emitting a .ascii

llvm-svn: 148793
 2012-01-24 09:31:43 +00:00
Chris Lattner
c616f8a90f Add various "string" methods to ConstantDataSequential, which have the 
same semantics as ConstantArray's but much more efficient because they
don't have to return std::string's.  The ConstantArray methods will
eventually be removed.

llvm-svn: 148792
 2012-01-24 09:01:07 +00:00
Chris Lattner
1c091db526 add ::drop_back() and ::drop_front() methods, which are like pop_front/pop_back on a vector, but a) aren't destructive to "this", and b) can take a # elements to drop. 
llvm-svn: 148791
 2012-01-24 08:58:57 +00:00
Chris Lattner
e9cf212d3f teach valuetracking about ConstantDataSequential 
llvm-svn: 148790
 2012-01-24 07:54:10 +00:00
Chris Lattner
265280c247 switch SCEV to use the new ConstantFoldLoadThroughGEPIndices function 
instead of its own hard coded thing, allowing it to handle 
ConstantDataSequential and fixing some obscure bugs (e.g. it would
previously crash on a CAZ of vector type).

llvm-svn: 148788
 2012-01-24 05:49:24 +00:00
Chris Lattner
d5993b31dd Split the interesting bits of ConstantFoldLoadThroughGEPConstantExpr 
out into a new ConstantFoldLoadThroughGEPIndices (more useful) function
and rewrite it to be simpler, more efficient, and to handle the new
ConstantDataSequential type.

Enhance ConstantFoldLoadFromConstPtr to handle ConstantDataSequential.

llvm-svn: 148786
 2012-01-24 05:43:50 +00:00
Chris Lattner
e534fbc8f6 Add some accessor methods to CAZ and UndefValue that help simplify clients. 
Make some CDS methods public.

llvm-svn: 148785
 2012-01-24 05:42:11 +00:00
Anton Korobeynikov
16e0f2bde3 Use correct register class for am2offset register operands. 
This pacifies machine verifier

llvm-svn: 148782
 2012-01-24 04:58:56 +00:00
Jakob Stoklund Olesen
c6598ae00f Preserve <def,undef> flags in CoalesceExtSubRegs. 
This won't have an effect until EliminateRegSequences() starts setting
the undef flags.

llvm-svn: 148779
 2012-01-24 04:44:01 +00:00
Chris Lattner
df67e07d2e implement the ConstantDataSequential accessor methods. 
No need for 'getOperand' :)

llvm-svn: 148778
 2012-01-24 04:43:41 +00:00
Craig Topper
7311a89449 Add comments near load pattern fragments indicating that all integer vector loads are promoted to v2i64 or v4i64 so that no one tries to reintroduce pattern fragments for other types. 
llvm-svn: 148771
 2012-01-24 03:03:17 +00:00
Jim Grosbach
3be662b372 NEON VST4(multiple 4 element structures) assembly parsing. 
llvm-svn: 148764
 2012-01-24 00:58:13 +00:00
Jim Grosbach
ca32a49eb5 NEON VLD4(multiple 4 element structures) assembly parsing. 
llvm-svn: 148762
 2012-01-24 00:43:17 +00:00
Jim Grosbach
345c1df4df Tidy up. Remove some vertical space for readability. 
llvm-svn: 148761
 2012-01-24 00:43:12 +00:00
Chandler Carruth
55876621c9 Revert r148686 (and r148694, a fix to it) due to a serious layering 
violation -- MC cannot depend on CodeGen.

Specifically, the MCTargetDesc component of each target is actually
a subcomponent of the MC library. As such, it cannot depend on the
target-independent code generator, because MC itself cannot depend on
the target-independent code generator. This change moved a flag from the
ARM MCTargetDesc file ARMMCAsmInfo.cpp to the CodeGen layer in
ARMException.cpp, leaving behind an 'extern' to refer back to it. That
layering order isn't viable givin the constraints outlined above.
Commandline flags are designed to be static specifically to avoid these
types of bugs.

Fixing this is likely going to require some non-trivial refactoring.

llvm-svn: 148759
 2012-01-24 00:30:17 +00:00
Jim Grosbach
522c9aefea Fix typo. 
llvm-svn: 148757
 2012-01-24 00:12:39 +00:00
Jim Grosbach
a4687dcf5a NEON VST3(single element from one lane) assembly parsing. 
llvm-svn: 148755
 2012-01-24 00:07:41 +00:00
Devang Patel
48ee4a8277 Fix typo. 
llvm-svn: 148751
 2012-01-23 23:56:33 +00:00
Jim Grosbach
048162ddf9 NEON VST3(multiple 3-element structures) assembly parsing. 
llvm-svn: 148748
 2012-01-23 23:45:44 +00:00
David Blaikie
cafc52ba9a Changing bitfield enums to unsigned ints. 
This was suggested by Chandler Carruth on the basis of past experience with
esoteric compilers/quirks relating to signed enums.

llvm-svn: 148746
 2012-01-23 23:27:47 +00:00
Jim Grosbach
8035fac461 NEON VLD3(multiple 3-element structures) assembly parsing. 
llvm-svn: 148745
 2012-01-23 23:20:46 +00:00
Anton Korobeynikov
62624b5220 Add missed mayStore flag to STREXD / t2STREXD 
llvm-svn: 148742
 2012-01-23 22:57:52 +00:00
Chris Lattner
860d90844c start the implementation of a new ConstantDataVector and ConstantDataArray 
classes, per PR1324.  Not all of their helper functions are implemented,
nothing creates them, and the rest of the compiler doesn't handle them yet.

llvm-svn: 148741
 2012-01-23 22:57:10 +00:00
Bill Wendling
22382365ff Remove extraneous ';'s. 
llvm-svn: 148740
 2012-01-23 22:55:02 +00:00
David Blaikie
eed9085fca Remove dead default. 
llvm-svn: 148738
 2012-01-23 22:37:11 +00:00
Devang Patel
327773a25b Intel syntax: Robustify parsing of memory operand's displacement experssion. 
llvm-svn: 148737
 2012-01-23 22:35:25 +00:00
David Blaikie
0c22143732 Simplify llvm:🆑:Option by using a bit field instead of manual bit packing. 
This still preserves the same total layout.

Previously it looked like:
*** Dumping AST Record Layout
   0 | class llvm:🆑:Option
   0 |   (Option vtable pointer)
   8 |   int NumOccurrences
  12 |   int Flags
  16 |   unsigned int Position
  20 |   unsigned int AdditionalVals
  24 |   class llvm:🆑:Option * NextRegistered
  32 |   const char * ArgStr
  40 |   const char * HelpStr
  48 |   const char * ValueStr
  sizeof=56, dsize=56, align=8
  nvsize=56, nvalign=8

Now it looks like:
*** Dumping AST Record Layout
   0 | class llvm:🆑:Option
   0 |   (Option vtable pointer)
   8 |   int NumOccurrences
  12 |   enum NumOccurrencesFlag Occurrences
  12 |   unsigned int Value
  12 |   enum OptionHidden HiddenFlag
  12 |   enum FormattingFlags Formatting
  13 |   unsigned int Misc
  16 |   unsigned int Position
  20 |   unsigned int AdditionalVals
  24 |   class llvm:🆑:Option * NextRegistered
  32 |   const char * ArgStr
  40 |   const char * HelpStr
  48 |   const char * ValueStr
  sizeof=56, dsize=56, align=8
  nvsize=56, nvalign=8

llvm-svn: 148736
 2012-01-23 22:22:44 +00:00
Jim Grosbach
dd667a11d3 NEON VLD3 lane-indexed assembly parsing and encoding. 
llvm-svn: 148734
 2012-01-23 21:53:26 +00:00
Rafael Espindola
9f3a003d3c Add support for .cfi_signal_frame. Fixes pr11762. 
llvm-svn: 148733
 2012-01-23 21:51:52 +00:00
Chris Lattner
cfea666af2 Various public StringMap methods take or return "MapEntryTy", make it public. 
llvm-svn: 148732
 2012-01-23 21:42:52 +00:00
Lang Hames
73f7de854c copyImplicitOps is redundant here - the loop above already copies these ops. 
llvm-svn: 148725
 2012-01-23 21:15:01 +00:00
Jakob Stoklund Olesen
dd6ae694d6 Fix PR11829. PostRA LICM was too aggressive. 
This fixes a typo in r148589.

llvm-svn: 148724
 2012-01-23 21:01:15 +00:00
Jakob Stoklund Olesen
7c2c3ef5cd Simplify debug output. 
llvm-svn: 148723
 2012-01-23 21:01:11 +00:00
Devang Patel
3c6289f43a Intel syntax: Parse memory operand with empty base reg, e.g. DWORD PTR [4*RDI] 
llvm-svn: 148721
 2012-01-23 20:20:06 +00:00
Jim Grosbach
0eeacbfe2e Simplify some NEON assembly pseudo definitions. 
Let the generic token alias definitions handle the data subtype
suffices. We don't need explicit versions for each.

llvm-svn: 148718
 2012-01-23 19:39:08 +00:00
Matt Beaumont-Gay
ea859b30be Silence warnings in -asserts build 
llvm-svn: 148715
 2012-01-23 18:46:04 +00:00
Devang Patel
9698de5bf3 Intel syntax: Parse segment registers. 
llvm-svn: 148712
 2012-01-23 18:31:58 +00:00
Chris Lattner
6d71b145da convert CAZ, UndefValue, and CPN to use DenseMap's again, this time without 
using OwningPtr.  OwningPtr would barf when the densemap had to reallocate,
which doesn't appear to happen on the regression test suite, but obviously
happens in real life :)

llvm-svn: 148700
 2012-01-23 15:20:12 +00:00
Chris Lattner
7f4e7ce468 revert r148688 too, this isn't safe for DenseMap use. When DenseMap resizes, it will need to copy around arbitrary pointers 
llvm-svn: 148699
 2012-01-23 15:10:41 +00:00
Chris Lattner
4dbbd66de9 revert r148691 and 148693 
llvm-svn: 148698
 2012-01-23 15:09:44 +00:00