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Author SHA1 Message Date
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
Evan Cheng
da92e34fe3 Fix a bug in dead spill slot elimination. 
llvm-svn: 47687
 2008-02-27 19:57:11 +00:00
Dan Gohman
16ba74da61 Remove the `else', at Evan's insistence. 
llvm-svn: 47686
 2008-02-27 19:44:57 +00:00
Dan Gohman
0cfccf801d Add -analyze support to postdomtree. 
llvm-svn: 47680
 2008-02-27 18:38:29 +00:00
Chris Lattner
e51c23341d actually run llc, thanks Dan :) 
llvm-svn: 47677
 2008-02-27 17:46:54 +00:00
Duncan Sands
0139087442 Add a FIXME about the VECTOR_SHUFFLE evil hack. 
llvm-svn: 47676
 2008-02-27 17:39:13 +00:00
Lauro Ramos Venancio
8dc3548bdf Emit an error when a library is not found. It is the GNU ld behavior and it is expected by the configure scripts. 
llvm-svn: 47674
 2008-02-27 17:20:32 +00:00
Duncan Sands
77ff6715ad LegalizeTypes support for EXTRACT_VECTOR_ELT. The 
approach taken is different to that in LegalizeDAG
when it is a question of expanding or promoting the
result type: for example, if extracting an i64 from
a <2 x i64>, when i64 needs expanding, it bitcasts
the vector to <4 x i32>, extracts the appropriate
two i32's, and uses those for the Lo and Hi parts.
Likewise, when extracting an i16 from a <4 x i16>,
and i16 needs promoting, it bitcasts the vector to
<2 x i32>, extracts the appropriate i32, twiddles
the bits if necessary, and uses that as the promoted
value.  This puts more pressure on bitcast legalization,
and I've added the appropriate cases.  They needed to
be added anyway since users can generate such bitcasts
too if they want to.  Also, when considering various
cases (Legal, Promote, Expand, Scalarize, Split) it is
a pain that expand can correspond to Expand, Scalarize
or Split, so I've changed the LegalizeTypes enum so it
lists those different cases - now Expand only means
splitting a scalar in two.
The code produced is the same as by LegalizeDAG for
all relevant testcases, except for
2007-10-31-extractelement-i64.ll, where the code seems
to have improved (see below; can an expert please tell
me if it is better or not).
Before < vs after >.

<       subl    $92, %esp
<       movaps  %xmm0, 64(%esp)
<       movaps  %xmm0, (%esp)
<       movl    4(%esp), %eax
<       movl    %eax, 28(%esp)
<       movl    (%esp), %eax
<       movl    %eax, 24(%esp)
<       movq    24(%esp), %mm0
<       movq    %mm0, 56(%esp)
---
>       subl    $44, %esp
>       movaps  %xmm0, 16(%esp)
>       pshufd  $1, %xmm0, %xmm1
>       movd    %xmm1, 4(%esp)
>       movd    %xmm0, (%esp)
>       movq    (%esp), %mm0
>       movq    %mm0, 8(%esp)

<       subl    $92, %esp
<       movaps  %xmm0, 64(%esp)
<       movaps  %xmm0, (%esp)
<       movl    12(%esp), %eax
<       movl    %eax, 28(%esp)
<       movl    8(%esp), %eax
<       movl    %eax, 24(%esp)
<       movq    24(%esp), %mm0
<       movq    %mm0, 56(%esp)
---
>       subl    $44, %esp
>       movaps  %xmm0, 16(%esp)
>       pshufd  $3, %xmm0, %xmm1
>       movd    %xmm1, 4(%esp)
>       movhlps %xmm0, %xmm0
>       movd    %xmm0, (%esp)
>       movq    (%esp), %mm0
>       movq    %mm0, 8(%esp)

<       subl    $92, %esp
<       movaps  %xmm0, 64(%esp)
---
>       subl    $44, %esp

<       movl    16(%esp), %eax
<       movl    %eax, 48(%esp)
<       movl    20(%esp), %eax
<       movl    %eax, 52(%esp)
<       movaps  %xmm0, (%esp)
<       movl    4(%esp), %eax
<       movl    %eax, 60(%esp)
<       movl    (%esp), %eax
<       movl    %eax, 56(%esp)
---
>       pshufd  $1, %xmm0, %xmm1
>       movd    %xmm1, 4(%esp)
>       movd    %xmm0, (%esp)
>       movd    %xmm1, 12(%esp)
>       movd    %xmm0, 8(%esp)

<       subl    $92, %esp
<       movaps  %xmm0, 64(%esp)
---
>       subl    $44, %esp

<       movl    24(%esp), %eax
<       movl    %eax, 48(%esp)
<       movl    28(%esp), %eax
<       movl    %eax, 52(%esp)
<       movaps  %xmm0, (%esp)
<       movl    12(%esp), %eax
<       movl    %eax, 60(%esp)
<       movl    8(%esp), %eax
<       movl    %eax, 56(%esp)
---
>       pshufd  $3, %xmm0, %xmm1
>       movd    %xmm1, 4(%esp)
>       movhlps %xmm0, %xmm0
>       movd    %xmm0, (%esp)
>       movd    %xmm1, 12(%esp)
>       movd    %xmm0, 8(%esp)

llvm-svn: 47672
 2008-02-27 13:34:40 +00:00
Gabor Greif
80152c3b09 Remove inappropriate whitespace, change CVS to SVN where it makes sense. 
llvm-svn: 47671
 2008-02-27 13:34:15 +00:00
Duncan Sands
4c1f3c0c5b LegalizeTypes support for legalizing the mask 
operand of a VECTOR_SHUFFLE.  The mask is a
vector of constant integers.  The code in
LegalizeDAG doesn't bother to legalize the
mask, since it's basically just storage for
a bunch of constants, however LegalizeTypes
is more picky.  The problem is that there may
not exist any legal vector-of-integers type
with a legal element type, so it is impossible
to create a legal mask!  Unless of course you
cheat by creating a BUILD_VECTOR where the
operands have a different type to the element
type of the vector being built...  This is
pretty ugly but works - all relevant tests in
the testsuite pass, and produce the same
assembler with and without LegalizeTypes.

llvm-svn: 47670
 2008-02-27 13:03:44 +00:00
Duncan Sands
cadfe810f3 LegalizeTypes support for INSERT_VECTOR_ELT. 
llvm-svn: 47669
 2008-02-27 10:18:23 +00:00
Evan Cheng
295ae42ede Don't track max alignment during stack object allocations since they can be deleted later. Let PEI compute it. 
llvm-svn: 47668
 2008-02-27 10:04:56 +00:00
Duncan Sands
f8ac836240 Support for legalizing MEMBARRIER. 
llvm-svn: 47667
 2008-02-27 08:53:44 +00:00
Bill Wendling
2cae66e28b Final de-tabification. 
llvm-svn: 47663
 2008-02-27 06:33:05 +00:00
Chris Lattner
d2a01e1994 Add path separator support, patch by Sam Bishop. 
llvm-svn: 47662
 2008-02-27 06:17:10 +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
2042802d32 Teach Legalize how to expand an EXTRACT_ELEMENT. 
llvm-svn: 47656
 2008-02-27 01:52:30 +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
Devang Patel
c68e26f9fe Add comment. 
llvm-svn: 47653
 2008-02-27 01:20:54 +00:00
Chris Lattner
a81d716e0c add a note 
llvm-svn: 47652
 2008-02-27 01:17:20 +00:00
Dan Gohman
689d8cac04 Convert SimplifyDemandedMask and ShrinkDemandedConstant to use APInt. 
Change several cases in SimplifyDemandedMask that don't ever do any
simplifying to reuse the logic in ComputeMaskedBits instead of
duplicating it.

llvm-svn: 47648
 2008-02-27 00:25:32 +00:00
Bill Wendling
24932cf415 Upgrade testcase. 
llvm-svn: 47644
 2008-02-26 23:22:40 +00:00
Devang Patel
4813397027 regenerate. 
llvm-svn: 47642
 2008-02-26 23:19:08 +00:00
Devang Patel
e696fb4f5a Add assert. 
llvm-svn: 47641
 2008-02-26 23:17:50 +00:00
Owen Anderson
a39b18223f Add PR number to testcase. 
llvm-svn: 47640
 2008-02-26 23:16:11 +00:00
Owen Anderson
eadd074b22 Fix an issue where GVN had the sizes of the two memcpy's reverse, resulting 
in an invalid transformation.

llvm-svn: 47639
 2008-02-26 23:06:17 +00:00
Devang Patel
98774b4b6a Add assert to check return type. 
llvm-svn: 47637
 2008-02-26 22:55:21 +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
Devang Patel
6229b52816 regenerate 
llvm-svn: 47634
 2008-02-26 22:17:48 +00:00
Devang Patel
5c00c6bafa Remove unncessary ReturnInst constructors. 
llvm-svn: 47633
 2008-02-26 22:12:58 +00:00
Chris Lattner
6318b4aee9 Use a smallvector for inactiveCounts and initialize it lazily 
instead of init'ing it maximally to zeros on entry.  getFreePhysReg
is pretty hot and only a few elements are typically used.  This speeds
up linscan by 5% on 176.gcc.

llvm-svn: 47631
 2008-02-26 22:08:41 +00:00
Bill Wendling
8fb166bf6c Rename PrintableName to Name. 
llvm-svn: 47629
 2008-02-26 21:47:57 +00:00
Anton Korobeynikov
ba0d97969e Update per review. Patch by Mikhail Glushenkov! 
llvm-svn: 47628
 2008-02-26 21:44:24 +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
Evan Cheng
701b6a1dc3 Enable -coalescer-commute-instrs by default. 
llvm-svn: 47623
 2008-02-26 20:40:22 +00:00
Nick Kledzik
7ebb5aa81a first commit of new LTO system. It is not hooked up in the llvm/tools/Makefile, so no one will build it be default yet 
llvm-svn: 47621
 2008-02-26 20:26:43 +00:00
Devang Patel
0be97b2118 Use SmallVector while constructing ReturnInst. 
llvm-svn: 47619
 2008-02-26 19:38:17 +00:00
Devang Patel
e5766a12da Avoid const_casts 
llvm-svn: 47616
 2008-02-26 19:15:26 +00:00
Gabor Greif
2cb16cddf1 fix http://llvm.org/bugs/show_bug.cgi?id=2097 
llvm-svn: 47615
 2008-02-26 19:13:21 +00:00
Devang Patel
6d492c3caf Remove unnecessary getOperand/setOperand overriders. 
Simplify getReturnValue()

llvm-svn: 47614
 2008-02-26 19:08:13 +00:00
Dan Gohman
8a8f3fe7e0 Avoid aborting on invalid shift counts. 
llvm-svn: 47612
 2008-02-26 18:50:50 +00:00
Devang Patel
e0f9c6f281 Unify to ReturnInst::init() member functions. 
llvm-svn: 47611
 2008-02-26 18:49:29 +00:00
Eli Friedman
1f2cabfbcf Fix for pr2093: direct operands aren't necessarily addresses, so don't 
try to simplify them.

llvm-svn: 47610
 2008-02-26 18:37:49 +00:00
Chris Lattner
9d19e558b7 fix this test so that the fn name doesn't match the regex 
llvm-svn: 47608
 2008-02-26 18:13:51 +00:00
Devang Patel
b35d15edf9 Optimize most common case by using single RetVal in ReturnInst. 
llvm-svn: 47607
 2008-02-26 17:56:20 +00:00
Arnold Schwaighofer
7466041819 Correct function comments. 
llvm-svn: 47606
 2008-02-26 17:50:59 +00:00