Chris Lattner
eedaf92fcf
third time around: instead of disabling this completely,
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only disable it if we don't know it will be obviously profitable.
Still fixme, but less so. :)
llvm-svn: 44658
2007-12-06 07:47:55 +00:00
Chris Lattner
b5fdfb9612
Actually, disable this code for now. More analysis and improvements to
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the X86 backend are needed before this should be enabled by default.
llvm-svn: 44657
2007-12-06 07:44:31 +00:00
Chris Lattner
7c709a5d08
implement a readme entry, compiling the code into:
...
_foo:
movl $12, %eax
andl 4(%esp), %eax
movl _array(%eax), %eax
ret
instead of:
_foo:
movl 4(%esp), %eax
shrl $2, %eax
andl $3, %eax
movl _array(,%eax,4), %eax
ret
As it turns out, this triggers all the time, in a wide variety of
situations, for example, I see diffs like this in various programs:
- movl 8(%eax), %eax
- shll $2, %eax
- andl $1020, %eax
- movl (%esi,%eax), %eax
+ movzbl 8(%eax), %eax
+ movl (%esi,%eax,4), %eax
- shll $2, %edx
- andl $1020, %edx
- movl (%edi,%edx), %edx
+ andl $255, %edx
+ movl (%edi,%edx,4), %edx
Unfortunately, I also see stuff like this, which can be fixed in the
X86 backend:
- andl $85, %ebx
- addl _bit_count(,%ebx,4), %ebp
+ shll $2, %ebx
+ andl $340, %ebx
+ addl _bit_count(%ebx), %ebp
llvm-svn: 44656
2007-12-06 07:33:36 +00:00
Chris Lattner
d2bbbabbfb
simplify some code.
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llvm-svn: 44655
2007-12-06 06:25:04 +00:00
Chris Lattner
42558bf664
implement the rest of the functionality from SelectionDAGLegalize::ScalarizeVectorOp
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llvm-svn: 44654
2007-12-06 05:53:43 +00:00
Chuck Rose III
cc2a661322
Adjust VStudio files to add JITMemoryManager files + include <cassert> from same.
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llvm-svn: 44651
2007-12-06 02:03:01 +00:00
Chris Lattner
0ccb663cca
move some ashr-specific code out of commonShiftTransforms into visitAShr.
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llvm-svn: 44650
2007-12-06 01:59:46 +00:00
Dale Johannesen
05bbbda78a
Fix PR1842.
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llvm-svn: 44649
2007-12-06 01:43:46 +00:00
Chris Lattner
7f3587e344
add a new ExecutionEngine::createJIT which can be used if you only want
...
to create a JIT. This lets you specify JIT-specific configuration items
like the JITMemoryManager to use.
llvm-svn: 44647
2007-12-06 01:34:04 +00:00
Chris Lattner
dc351b94f9
simplify creation of the interpreter, make ExecutionEngine ctor protected,
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delete one ExecutionEngine ctor, minor cleanup.
llvm-svn: 44646
2007-12-06 01:08:09 +00:00
Evan Cheng
7fc1d98353
Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate.
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llvm-svn: 44644
2007-12-06 00:01:56 +00:00
Evan Cheng
d3d8017bcb
If both result of the {s|z}xt and its source are live out, rewrite all uses of the source with result of extension.
...
llvm-svn: 44643
2007-12-05 23:58:20 +00:00
Chris Lattner
55d8c3f71b
split the JIT memory management code out from the main JIT logic into its
...
own JITMemoryManager interface. There is no functionality change with
this patch.
llvm-svn: 44640
2007-12-05 23:39:57 +00:00
Chris Lattner
5e224c32f4
add a note
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llvm-svn: 44638
2007-12-05 23:05:06 +00:00
Chris Lattner
ad05e17491
add a note
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llvm-svn: 44637
2007-12-05 22:58:19 +00:00
Scott Michel
83d54c9ee0
Minor updates:
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- Fix typo in SPUCallingConv.td
- Credit myself for CellSPU work
- Add CellSPU to 'all' host target list
llvm-svn: 44627
2007-12-05 21:23:16 +00:00
Duncan Sands
abba5e218c
Commit 44487 broke bootstrap of llvm-gcc-4.2. It is
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not yet clear why, but in the meantime work around the
problem by making less use of readnone/readonly info.
llvm-svn: 44626
2007-12-05 21:03:28 +00:00
Evan Cheng
3b8a674469
Added canFoldMemoryOperand for PPC.
...
llvm-svn: 44623
2007-12-05 18:41:29 +00:00
Evan Cheng
8492bdeaa4
Update foldMemoryOperand.
...
llvm-svn: 44621
2007-12-05 18:36:37 +00:00
Chris Lattner
de9bfcf67a
fix warnings
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llvm-svn: 44620
2007-12-05 18:32:18 +00:00
Chris Lattner
8292519705
allow this to build
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llvm-svn: 44619
2007-12-05 18:30:11 +00:00
Neil Booth
06f20ea4ba
Prior commit updated wrong if, apologies.
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llvm-svn: 44614
2007-12-05 13:06:04 +00:00
Neil Booth
3ab004bca6
Handle zero correctly.
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llvm-svn: 44613
2007-12-05 13:01:24 +00:00
Evan Cheng
678b86d6ce
MachineInstr can change. Store indexes instead.
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llvm-svn: 44612
2007-12-05 10:24:35 +00:00
Evan Cheng
06353b48b5
If a split live interval is spilled again, remove the kill marker on its last use.
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llvm-svn: 44611
2007-12-05 09:51:10 +00:00
Evan Cheng
64b3baaaea
Clobber more bugs.
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llvm-svn: 44610
2007-12-05 09:05:34 +00:00
Evan Cheng
d7de56ac93
Fix kill info for split intervals.
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llvm-svn: 44609
2007-12-05 08:16:32 +00:00
Chris Lattner
c9693c60a5
more scalarization
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llvm-svn: 44608
2007-12-05 07:45:02 +00:00
Chris Lattner
1a0d49a63c
scalarize vector binops
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llvm-svn: 44607
2007-12-05 07:36:58 +00:00
Evan Cheng
269dbd31d0
- Mark last use of a split interval as kill instead of letting spiller track it.
...
This allows an important optimization to be re-enabled.
- If all uses / defs of a split interval can be folded, give the interval a
low spill weight so it would not be picked in case spilling is needed (avoid
pushing other intervals in the same BB to be spilled).
llvm-svn: 44601
2007-12-05 03:22:34 +00:00
Evan Cheng
bb26301864
Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether
...
the stored register is killed.
llvm-svn: 44600
2007-12-05 03:14:33 +00:00
Scott Michel
4834955fdf
More stuff for CellSPU -- this should be enough to get an error-free
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compilation (no files missing). Test cases remain to be checked in.
llvm-svn: 44598
2007-12-05 02:01:41 +00:00
Scott Michel
d1b5b9f68c
Updated source file headers to llvm coding standard.
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llvm-svn: 44597
2007-12-05 01:40:25 +00:00
Scott Michel
8d35728607
Two missing files.
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llvm-svn: 44596
2007-12-05 01:31:18 +00:00
Scott Michel
eff980208a
Main CellSPU backend files checked in. Intrinsics and autoconf files
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remain.
llvm-svn: 44595
2007-12-05 01:24:05 +00:00
Dale Johannesen
9d43e3d841
Handle 0 correctly in string->APFloat conversion.
...
llvm-svn: 44594
2007-12-05 01:10:19 +00:00
Evan Cheng
e412a4427b
Remove a unsafe optimization. This fixes 401.bzip2.
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llvm-svn: 44587
2007-12-04 23:57:55 +00:00
Scott Michel
dfe09ed085
More files in the CellSPU drop...
...
llvm-svn: 44584
2007-12-04 22:35:58 +00:00
Scott Michel
6e22c651d1
More of the Cell SPU code drop from "Team Aerospace".
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llvm-svn: 44582
2007-12-04 22:23:35 +00:00
Evan Cheng
cd8a89b3cd
Spiller unfold optimization bug: do not clobber a reusable stack slot value unless it can be modified.
...
llvm-svn: 44575
2007-12-04 19:19:45 +00:00
Chris Lattner
b892225fb9
Implement framework for scalarizing node results. This is sufficient
...
to codegen this:
define float @test_extract_elt(<1 x float> * %P) {
%p = load <1 x float>* %P
%R = extractelement <1 x float> %p, i32 0
ret float %R
}
llvm-svn: 44570
2007-12-04 07:48:46 +00:00
Chris Lattner
681c9d6697
start providing framework for scalarizing vectors.
...
llvm-svn: 44569
2007-12-04 07:29:51 +00:00
Evan Cheng
d1badb960e
Discard split intervals made empty due to folding.
...
llvm-svn: 44565
2007-12-04 00:32:23 +00:00
Scott Michel
d821fe741e
More CellSPU files... more to follow.
...
llvm-svn: 44559
2007-12-03 23:14:43 +00:00
Scott Michel
c7bd8d9cb0
Makefile fragment for CellSPU.
...
llvm-svn: 44558
2007-12-03 23:12:49 +00:00
Scott Michel
256e9abbb9
First commit to CellSPU. More to follow
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llvm-svn: 44557
2007-12-03 23:09:49 +00:00
Evan Cheng
40965448ff
Bug fixes.
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llvm-svn: 44549
2007-12-03 21:31:55 +00:00
Anton Korobeynikov
3ddfbf36e9
Regenerate
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llvm-svn: 44546
2007-12-03 21:01:29 +00:00
Anton Korobeynikov
a638f11cd2
Fix fallout from my last patch: don't reject varargs functions :)
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llvm-svn: 44545
2007-12-03 21:00:45 +00:00
Duncan Sands
38ef3a8ec7
Rather than having special rules like "intrinsics cannot
...
throw exceptions", just mark intrinsics with the nounwind
attribute. Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).
llvm-svn: 44544
2007-12-03 20:06:50 +00:00