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a5f3ec9e03
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20837 Commits

Author SHA1 Message Date
Evan Cheng
a5f3ec9e03 Fix kill info for split intervals. 
llvm-svn: 44609
 2007-12-05 08:16:32 +00:00
Chris Lattner
a43f6b4a08 more scalarization 
llvm-svn: 44608
 2007-12-05 07:45:02 +00:00
Chris Lattner
e1b35fb035 scalarize vector binops 
llvm-svn: 44607
 2007-12-05 07:36:58 +00:00
Evan Cheng
1dc8e83707 - 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
8464a0bf00 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
871b3a4fd4 More stuff for CellSPU -- this should be enough to get an error-free 
compilation (no files missing). Test cases remain to be checked in.

llvm-svn: 44598
 2007-12-05 02:01:41 +00:00
Scott Michel
8a2cb11b05 Updated source file headers to llvm coding standard. 
llvm-svn: 44597
 2007-12-05 01:40:25 +00:00
Scott Michel
026ace10b2 Two missing files. 
llvm-svn: 44596
 2007-12-05 01:31:18 +00:00
Scott Michel
191775d31f Main CellSPU backend files checked in. Intrinsics and autoconf files 
remain.

llvm-svn: 44595
 2007-12-05 01:24:05 +00:00
Dale Johannesen
15712dc45a Handle 0 correctly in string->APFloat conversion. 
llvm-svn: 44594
 2007-12-05 01:10:19 +00:00
Evan Cheng
a8e7a09fef Remove a unsafe optimization. This fixes 401.bzip2. 
llvm-svn: 44587
 2007-12-04 23:57:55 +00:00
Scott Michel
512cb025cc More files in the CellSPU drop... 
llvm-svn: 44584
 2007-12-04 22:35:58 +00:00
Scott Michel
774da2e74c More of the Cell SPU code drop from "Team Aerospace". 
llvm-svn: 44582
 2007-12-04 22:23:35 +00:00
Evan Cheng
63d60199aa 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
914befbc8a 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
eead86bbc5 start providing framework for scalarizing vectors. 
llvm-svn: 44569
 2007-12-04 07:29:51 +00:00
Evan Cheng
ffc584dd21 Discard split intervals made empty due to folding. 
llvm-svn: 44565
 2007-12-04 00:32:23 +00:00
Scott Michel
3996f647d2 More CellSPU files... more to follow. 
llvm-svn: 44559
 2007-12-03 23:14:43 +00:00
Scott Michel
c312b999e6 Makefile fragment for CellSPU. 
llvm-svn: 44558
 2007-12-03 23:12:49 +00:00
Scott Michel
34987128e0 First commit to CellSPU. More to follow 
llvm-svn: 44557
 2007-12-03 23:09:49 +00:00
Evan Cheng
0b5abc5fcb Bug fixes. 
llvm-svn: 44549
 2007-12-03 21:31:55 +00:00
Anton Korobeynikov
75a3208bb0 Regenerate 
llvm-svn: 44546
 2007-12-03 21:01:29 +00:00
Anton Korobeynikov
dcec56301a Fix fallout from my last patch: don't reject varargs functions :) 
llvm-svn: 44545
 2007-12-03 21:00:45 +00:00
Duncan Sands
1e2e4972ff 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
Chris Lattner
0c41f32943 update file comment. 
llvm-svn: 44543
 2007-12-03 19:43:18 +00:00
Anton Korobeynikov
3f14aef8e9 Regenerate 
llvm-svn: 44541
 2007-12-03 19:17:47 +00:00
Devang Patel
c47f68e747 If ExitValue operand is also defined in Loop header then 
insert new ExitValue after this operand definition.

This fixes PR1828.

llvm-svn: 44539
 2007-12-03 19:17:21 +00:00
Anton Korobeynikov
a19d61c50e More sanity checks for function types. 
Thanks goes to PyPy folks for generating broken stuff :)

llvm-svn: 44538
 2007-12-03 19:16:54 +00:00
Gordon Henriksen
8ef652160a Applying Anton's binmode fix to the other ofstream too. 
llvm-svn: 44535
 2007-12-03 14:50:37 +00:00
Anton Korobeynikov
2e3b17227f Sorry, typo :) 
llvm-svn: 44534
 2007-12-03 14:35:57 +00:00
Anton Korobeynikov
8c54cc8456 Open output file correctly. This is extremely important for 
windows-based hosts, where files are opened in text mode by default.

llvm-svn: 44533
 2007-12-03 14:28:26 +00:00
Evan Cheng
2f539edfe6 Typo 
llvm-svn: 44532
 2007-12-03 10:00:00 +00:00
Evan Cheng
df066bc833 Update kill info for uses of split intervals. 
llvm-svn: 44531
 2007-12-03 09:58:48 +00:00
Anton Korobeynikov
ad4a61ed0b Provide hook for _alloca to make JITing on Cygwin slightly happier :) 
llvm-svn: 44528
 2007-12-03 05:30:41 +00:00
Evan Cheng
58b387dfb0 Remove redundant foldMemoryOperand variants and other code clean up. 
llvm-svn: 44517
 2007-12-02 08:30:39 +00:00
Duncan Sands
14f11d6836 Integrate the readonly/readnone logic more deeply 
into alias analysis.  This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter.  These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function.  Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite.  To reduce the
chance of misuse it is now protected.

llvm-svn: 44487
 2007-12-01 07:51:45 +00:00
Evan Cheng
7b13aa1c75 Fix a bug where splitting cause some unnecessary spilling. 
llvm-svn: 44482
 2007-12-01 04:42:39 +00:00
Evan Cheng
79e8b92dc3 Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0. 
llvm-svn: 44479
 2007-12-01 02:07:52 +00:00
Ted Kremenek
74fcbb87af Fixed subtle bug in Deserializer::JumpTo when jumping when the block-nesting 
information matching did not exactly match the underlying stream's scoping
information.

llvm-svn: 44470
 2007-11-30 22:45:05 +00:00
Evan Cheng
90c548af8e Do not fold reload into an instruction with multiple uses. It issues one extra load. 
llvm-svn: 44467
 2007-11-30 21:23:43 +00:00
Chris Lattner
c75545d4a8 chain update requests properly. 
llvm-svn: 44460
 2007-11-30 18:52:58 +00:00
Duncan Sands
97ddf89236 Small optimization of parameter attribute lookup. 
llvm-svn: 44458
 2007-11-30 18:20:58 +00:00
Duncan Sands
94d751995e Add a convenience method for modifying parameter 
attributes.  While there, I noticed that not all
attribute methods returned a pointer-to-constant,
so I fixed that.

llvm-svn: 44457
 2007-11-30 18:19:18 +00:00
Duncan Sands
8d9be63cd3 Check that there are not more attributes than 
function parameters.

llvm-svn: 44452
 2007-11-30 15:52:20 +00:00
Devang Patel
47b368da69 Provide a way to update DescGlobals cache directly. 
llvm-svn: 44446
 2007-11-30 00:51:33 +00:00
Evan Cheng
9ddd80f2b9 Do not lose rematerialization info when spilling already split live intervals. 
llvm-svn: 44443
 2007-11-29 23:02:50 +00:00
Owen Anderson
3b893e1f84 Fix a miscompilation in spiff on PPC. 
llvm-svn: 44437
 2007-11-29 18:02:22 +00:00
Evan Cheng
cf224f3721 Fix a major performance issue with splitting. If there is a def (not def/use) 
in the middle of a split basic block, create a new live interval starting at
the def. This avoid artifically extending the live interval over a number of
cycles where it is dead. e.g.

bb1:
       = vr1204   (use / kill) <= new interval starts and ends here.
...
...
vr1204 =          (new def)   <= start a new interval here.
       = vr1204   (use)

llvm-svn: 44436
 2007-11-29 10:12:14 +00:00
Evan Cheng
72fe4454e6 Replace the odd kill# hack with something less fragile. 
llvm-svn: 44434
 2007-11-29 09:49:23 +00:00
Duncan Sands
19a1638e99 Small parameter attributes cleanup. 
llvm-svn: 44433
 2007-11-29 08:30:15 +00:00