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a70385185e
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8034 Commits

Author SHA1 Message Date
Chris Lattner
a70385185e Print i32/i64 integer constants as 1u instead of ((unsigned int)1). 
Use dyn_cast better.

llvm-svn: 47804
 2008-03-02 03:16:38 +00:00
Chris Lattner
38a684c0c9 Move pr717 to here. 
llvm-svn: 47803
 2008-03-02 02:51:40 +00:00
Andrew Lenharth
ba7f925582 good catch anton 
llvm-svn: 47800
 2008-03-01 23:18:21 +00:00
Andrew Lenharth
f6c220738c make CAS work 
llvm-svn: 47799
 2008-03-01 22:27:48 +00:00
Andrew Lenharth
b91c664226 all but CAS working on x86 
llvm-svn: 47798
 2008-03-01 21:52:34 +00:00
Andrew Lenharth
ad29a49169 Add lock prefix support to x86. Also add the instructions necessary for the atomic ops. They are still marked pseudo, since I cannot figure out what format to use, but they are the correct opcode. 
llvm-svn: 47795
 2008-03-01 13:37:02 +00:00
Anton Korobeynikov
875da2420a Use enumeration for preffered EH dwarf encoding reason 
llvm-svn: 47770
 2008-02-29 22:09:08 +00:00
Anders Carlsson
236f4dff95 Use the correct instruction encodings for the 64-bit MMX movd. 
llvm-svn: 47740
 2008-02-29 01:35:12 +00:00
Evan Cheng
ea1f2d1110 Added option -align-loops=<true/false> to disable loop aligner pass. 
llvm-svn: 47736
 2008-02-28 23:29:57 +00:00
Dale Johannesen
310201ba32 Interface of getByValTypeAlignment differed between 
generic & x86 versions; change generic to follow x86
and improve comments.  Add PPC version (not right
for non-Darwin.)

llvm-svn: 47734
 2008-02-28 22:31:51 +00:00
Lauro Ramos Venancio
a6e28675f3 Initialize TextAlignFillValue. Fix revision 47703. 
llvm-svn: 47732
 2008-02-28 22:14:09 +00:00
Lauro Ramos Venancio
ea557cc68e Avoid collisions in value names. 
llvm-svn: 47725
 2008-02-28 20:26:04 +00:00
Chris Lattner
f0329b6170 add a note 
llvm-svn: 47720
 2008-02-28 17:21:27 +00:00
Evan Cheng
e1d3e0958b Set to default: x86 no longer fold and into test if it has more than one use. 
llvm-svn: 47711
 2008-02-28 07:46:38 +00:00
Chris Lattner
c1851542a5 Sparc backend doesn't support debug info yet, mark the nodes as expand. This fixes a crash on 
test/DebugInfo/funccall.ll

llvm-svn: 47709
 2008-02-28 05:54:25 +00:00
Chris Lattner
f989deed26 Fix CodeGen/Generic/storetrunc-fp.ll on sparc, PR2105 
llvm-svn: 47707
 2008-02-28 05:48:04 +00:00
Chris Lattner
0f0fc0ccd4 fix CodeGen/Generic/2008-01-25-dag-combine-mul.ll on sparc, PR2105 
llvm-svn: 47706
 2008-02-28 05:44:20 +00:00
Chris Lattner
dab318a206 target-indep codegen memcpy lowering issue. 
llvm-svn: 47705
 2008-02-28 05:34:27 +00:00
Chris Lattner
33b1f491a0 Add a random not very important note 
llvm-svn: 47704
 2008-02-28 04:52:59 +00:00
Evan Cheng
f8b1257d2e Add a quick and dirty "loop aligner pass". x86 uses it to align its loops to 16-byte boundaries. 
llvm-svn: 47703
 2008-02-28 00:43:03 +00:00
Eli Friedman
912a1d48e1 A few more small things I've run into. 
llvm-svn: 47702
 2008-02-28 00:21:43 +00:00
Anton Korobeynikov
f8d5799001 EHPreferredDataFormat hook for PPC targets. Looks like Darwin 
uses the same encoding everywhere. Linux FIXME'ed.

llvm-svn: 47701
 2008-02-27 23:49:15 +00:00
Anton Korobeynikov
7bd4b77e30 Preparation step for some cleanup/generalization in EH information emission: 
provide TAI hook for selection of EH data emission format. Currently unused.

llvm-svn: 47699
 2008-02-27 23:33:50 +00:00
Dan Gohman
5d96a06b0b Don't hard-code the mask size to be 32, which is incorrect on ppc64 
and was causing aborts with the new APInt changes. This may also be
fixing an obscure ppc64 bug.

llvm-svn: 47692
 2008-02-27 21:12:32 +00:00
Evan Cheng
08f11a37d7 This is done. 
llvm-svn: 47688
 2008-02-27 20:26:32 +00:00
Bill Wendling
2cae66e28b Final de-tabification. 
llvm-svn: 47663
 2008-02-27 06:33:05 +00:00
Chris Lattner
1f46cc2345 Make X86TargetLowering::LowerSINT_TO_FP return without creating a dead 
stack slot and store if the  SINT_TO_FP is actually legal.  This allows
us to compile:

double a(double b) {return (unsigned)b;}

to:

_a:
	cvttsd2siq	%xmm0, %rax
	movl	%eax, %eax
	cvtsi2sdq	%rax, %xmm0
	ret

instead of:

_a:
	subq	$8, %rsp
	cvttsd2siq	%xmm0, %rax
	movl	%eax, %eax
	cvtsi2sdq	%rax, %xmm0
	addq	$8, %rsp
	ret

crazy.

llvm-svn: 47660
 2008-02-27 05:57:41 +00:00
Chris Lattner
f19162a87f this code is correct but strange looking ;-) 
llvm-svn: 47659
 2008-02-27 05:48:44 +00:00
Chris Lattner
bc686e546a Compile x86-64-and-mask.ll into: 
_test:
	movl	%edi, %eax
	ret

instead of:

_test:
        movl    $4294967295, %ecx
        movq    %rdi, %rax
        andq    %rcx, %rax
        ret

It would be great to write this as a Pat pattern that used subregs 
instead of a 'pseudo' instruction, but I don't know how to do that
in td files.

llvm-svn: 47658
 2008-02-27 05:47:54 +00:00
Evan Cheng
7553230e3a Spiller now remove unused spill slots. 
llvm-svn: 47657
 2008-02-27 03:04:06 +00:00
Dan Gohman
938e74654b Convert the last remaining users of the non-APInt form of 
ComputeMaskedBits to use the APInt form, and remove the
non-APInt form.

llvm-svn: 47654
 2008-02-27 01:23:58 +00:00
Chris Lattner
a81d716e0c add a note 
llvm-svn: 47652
 2008-02-27 01:17:20 +00:00
Arnold Schwaighofer
642dc28734 Refactor according to Evan's and Anton's suggestions. 
llvm-svn: 47635
 2008-02-26 22:21:54 +00:00
Bill Wendling
8fb166bf6c Rename PrintableName to Name. 
llvm-svn: 47629
 2008-02-26 21:47:57 +00:00
Bill Wendling
50f5c4be14 Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool 
would have been a Godsend here!

llvm-svn: 47625
 2008-02-26 21:11:01 +00:00
Arnold Schwaighofer
7466041819 Correct function comments. 
llvm-svn: 47606
 2008-02-26 17:50:59 +00:00
Bill Wendling
16cba10ae6 De-tabify 
llvm-svn: 47600
 2008-02-26 10:57:23 +00:00
Arnold Schwaighofer
ddebd886dc Add support for intermodule tail calls on x86/32bit with 
GOT-style position independent code. Before only tail calls to
protected/hidden functions within the same module were optimized.
Now all function calls are tail call optimized.

llvm-svn: 47594
 2008-02-26 10:21:54 +00:00
Arnold Schwaighofer
6383666085 Change the lowering of arguments for tail call optimized 
calls. Before arguments that could overwrite each other were
explicitly lowered to a stack slot, not giving the register allocator
a chance to optimize. Now a sequence of copyto/copyfrom virtual
registers ensures that arguments are loaded in (virtual) registers
before they are lowered to the stack slot (and might overwrite each
other). Also parameter stack slots are marked mutable for
(potentially) tail calling functions.

llvm-svn: 47593
 2008-02-26 09:19:59 +00:00
Dan Gohman
b8e7fea22f Revert the assert for MUL_LOHI with an unused high result; Chris 
pointed out that this isn't correct at -O0.

llvm-svn: 47575
 2008-02-25 22:43:48 +00:00
Dale Johannesen
c67fa85683 Revise previous patch per review. 
llvm-svn: 47573
 2008-02-25 22:29:22 +00:00
Dan Gohman
2585bc7c46 Add an assert to verify that we don't see an 
{S,U}MUL_LOHI with an unused high value.

llvm-svn: 47569
 2008-02-25 22:15:55 +00:00
Dan Gohman
1914fa6932 Remove the hack that turned an {S,U}MUL_LOHI with an unused high 
result into a MUL late in the X86 codegen process. ISD::MUL is
once again Legal on X86, so this is no longer needed. And, the
hack was suboptimal; see PR1874 for details.

llvm-svn: 47567
 2008-02-25 21:57:04 +00:00
Dan Gohman
012abf0109 Convert MaskedValueIsZero and all its users to use APInt. Also add 
a SignBitIsZero function to simplify a common use case.

llvm-svn: 47561
 2008-02-25 21:11:39 +00:00
Dale Johannesen
574bb5e1e2 Expand removal of MMX memory copies to allow 1 level 
of TokenFactor underneath chain (seems to be enough)

llvm-svn: 47554
 2008-02-25 19:20:14 +00:00
Bill Wendling
a369a6add8 Some platforms use the same name for 32-bit and 64-bit registers (like 
%r3 on PPC) in their ASM files. However, it's hard for humans to read
during debugging. Adding a new field to the register data that lets you
specify a different name to be printed than the one that goes into the
ASM file -- %x3 instead of %r3, for instance.

llvm-svn: 47534
 2008-02-24 00:56:13 +00:00
Scott Michel
36bbc39272 Merge current work back to tree to minimize diffs and drift. Major highlights 
for CellSPU modifications:

- SPUInstrInfo.td refactoring: "multiclass" really is _your_ friend.
- Other improvements based on refactoring effort in SPUISelLowering.cpp,
  esp. in SPUISelLowering::PerformDAGCombine(), where zero amount shifts and
  rotates are now eliminiated, other scalar-to-vector-to-scalar silliness
  is also eliminated.
- 64-bit operations are being implemented, _muldi3.c gcc runtime now
  compiles and generates the right code. More work still needs to be done.

llvm-svn: 47532
 2008-02-23 18:41:37 +00:00
Evan Cheng
d3e9e78aa0 Turning on remat of pic loads. 
llvm-svn: 47524
 2008-02-23 02:07:42 +00:00
Evan Cheng
97ca29e99a No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case. 
llvm-svn: 47522
 2008-02-23 01:47:44 +00:00
Dale Johannesen
ae08bdb4cf Split ParameterAttributes.h, putting the complicated 
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.

llvm-svn: 47504
 2008-02-22 22:17:59 +00:00