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Author SHA1 Message Date
Anton Korobeynikov
2a0715eb1b Add hook to insert late LLVM=>LLVM passes just before isel 
llvm-svn: 109354
 2010-07-24 20:48:54 +00:00
Nick Lewycky
7094bd27bc Whether function-local or not, a MDNode may reference a Function in which case 
it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.

llvm-svn: 109353
 2010-07-24 19:43:25 +00:00
Chris Lattner
ae021d8590 add a new NullablePtr class which makes it more obvious in API 
that a pointer can be null, forcing clients to think about it.

llvm-svn: 109348
 2010-07-24 18:47:46 +00:00
Peter Collingbourne
48fc43e800 Document BUILD_EXAMPLES makefile variable 
llvm-svn: 109346
 2010-07-24 17:54:00 +00:00
Duncan Sands
5128cb3743 Clarify that if a new value handle is added while dropping value handles 
hanging off a value, then the dropping code will intentionally not drop
it too (since this is almost certainly a bug).

llvm-svn: 109337
 2010-07-24 12:09:22 +00:00
Bob Wilson
59114a12b8 Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectors 
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K
won't cause a compile time performance regression.

llvm-svn: 109330
 2010-07-24 06:01:53 +00:00
Devang Patel
df9f5bf991 Use current working directory when Dirname is empty. This only happens when absolute source file path is used on compiler command line. 
llvm-svn: 109302
 2010-07-24 00:53:22 +00:00
Evan Cheng
a0b74d8804 Add an ILP scheduler. This is a register pressure aware scheduler that's 
appropriate for targets without detailed instruction iterineries.
The scheduler schedules for increased instruction level parallelism in
low register pressure situation; it schedules to reduce register pressure
when the register pressure becomes high.

On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2
by 16%.

llvm-svn: 109300
 2010-07-24 00:39:05 +00:00
Bruno Cardoso Lopes
632295a03c Support x86 "eiz" and "riz" pseudo index registers in the assembler. 
llvm-svn: 109295
 2010-07-24 00:06:39 +00:00
Jim Grosbach
4b7545413d Use the appropriate register class for an i32 when adding ARM::LR to the 
function live in set. This will give us tGPR for Thumb1 and GPR otherwise,
so the copy will be spillable. rdar://8224931

llvm-svn: 109293
 2010-07-23 23:50:35 +00:00
Jim Grosbach
30d0fca117 Remove too-strict assertion. We may want the vreg copy of the physical register 
to be of a different register class. For example, in Thumb1 if the live-in is
a high register, we want the vreg to be a low register. rdar://8224931

llvm-svn: 109291
 2010-07-23 23:48:02 +00:00
Matt Fleming
6c3c8fe3ae Consolidate the ELF section directive tests into a single file as 
suggested by Chris Lattner.

llvm-svn: 109290
 2010-07-23 23:40:41 +00:00
Owen Anderson
e64c7514fb Fix use-after-free error. 
llvm-svn: 109288
 2010-07-23 23:27:43 +00:00
Devang Patel
7049c83125 Revert r109262. 
llvm-svn: 109285
 2010-07-23 23:04:41 +00:00
Dale Johannesen
50d2bc2942 Revert 109076. It is wrong and was causing regressions. Add some 
comments explaining why it was wrong.  8225024.

Fix the real problem in 8213383: the code that splits very large
blocks when no other place to put constants can be found was not
considering the case that the block contained a Thumb tablejump.

llvm-svn: 109282
 2010-07-23 22:50:23 +00:00
Evan Cheng
f215e55d5f - Allow target to specify when is register pressure "too high". In most cases, 
it's too late to start backing off aggressive latency scheduling when most
  of the registers are in use so the threshold should be a bit tighter.
- Correctly handle live out's and extract_subreg etc.
- Enable register pressure aware scheduling by default for hybrid scheduler.
  For ARM, this is almost always a win on # of instructions. It's runtime
  neutral for most of the tests. But for some kernels with high register
  pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by
  54 and sped up by 20%.

llvm-svn: 109279
 2010-07-23 22:39:59 +00:00
Bruno Cardoso Lopes
06fcdd6563 Remove trailing whitespace 
llvm-svn: 109276
 2010-07-23 22:15:26 +00:00
Dan Gohman
e6e38c1685 Eliminate getCanonicalInductionVariableIncrement's last user and 
eliminate it.

llvm-svn: 109270
 2010-07-23 21:34:51 +00:00
Bruno Cardoso Lopes
8907fcd2b5 Move AVX encoding tests to different files 
llvm-svn: 109269
 2010-07-23 21:25:26 +00:00
Dan Gohman
1d19d69faf Simplify this code; it can use the regular CFG utlities rather than 
the BlockTraits abstractions.

llvm-svn: 109268
 2010-07-23 21:25:16 +00:00
Dan Gohman
188a4d7d53 Micro-optimize SCEVComplexityCompare. 
llvm-svn: 109267
 2010-07-23 21:20:52 +00:00
Dan Gohman
2de2b0713e Add a const qualifier. 
llvm-svn: 109266
 2010-07-23 21:18:55 +00:00
Dan Gohman
1694c4352a Use the proper type for shift counts. This fixes a bootstrap error. 
llvm-svn: 109265
 2010-07-23 21:08:12 +00:00
Devang Patel
01d5937192 IF directory name is empty then try to extract one using absolute file name. 
llvm-svn: 109262
 2010-07-23 20:36:13 +00:00
Stuart Hastings
3987a0d4ea Test case to insure template function declaration refers to correct filename. Radar 8063111. 
llvm-svn: 109258
 2010-07-23 20:15:49 +00:00
Bruno Cardoso Lopes
a80b57e5fc Add AVX version of CLMUL instructions 
llvm-svn: 109248
 2010-07-23 18:41:12 +00:00
Dan Gohman
8859ab786b DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits 
are not demanded. This often allows the anyext to be folded away.

llvm-svn: 109242
 2010-07-23 18:03:30 +00:00
Dan Gohman
b5a26419b8 Make SDNode::dump() print a newline at the end. 
llvm-svn: 109234
 2010-07-23 16:37:47 +00:00
Gabor Greif
30f8e2112c fix constness warnings 
llvm-svn: 109224
 2010-07-23 13:28:47 +00:00
Eric Christopher
883daea18d Revert r109102 for now as it's causing JIT miscompilations. 
I'll try to track down why a bit later.

llvm-svn: 109223
 2010-07-23 12:16:56 +00:00
Gabor Greif
a04ffe0391 do not (implicitly) dereference iterator many times, cache it instead 
llvm-svn: 109222
 2010-07-23 10:23:01 +00:00
Eric Christopher
ea5f4cc47c Revert 109220. 
llvm-svn: 109221
 2010-07-23 08:53:17 +00:00
Gabor Greif
af73f58852 Simplifying use_iterators by dereferencing 
is not a good idea. The codebase does not depend
in this any more, and it may introduce hidden
runtime cost. If you get compile errors, please
dereference your iterator before passing to cast<>
(and friends).

Also: please consider caching the result of
operator* and reusing that instead of dereferencing
many times.

llvm-svn: 109220
 2010-07-23 08:36:07 +00:00
Mikhail Glushenkov
a73b239681 StringRef'icate. 
llvm-svn: 109217
 2010-07-23 04:19:39 +00:00
Mikhail Glushenkov
bbe02846de Formatting. 
llvm-svn: 109216
 2010-07-23 04:19:34 +00:00
Mikhail Glushenkov
bbeb485c74 Get rid of exceptions in llvmc. 
llvmc can be now compiled with llvm-gcc on Windows.

llvm-svn: 109215
 2010-07-23 03:42:55 +00:00
Chris Lattner
ab2419e712 give StringMap a new ctor which allows you to initialize it 
with an existing allocator.  The interesting use case of this
is that it allows "StringMap<whatever, BumpPtrAllocator&>" for
when you want to allocate out of a preexisting bump pointer
allocator owned by someone else.

llvm-svn: 109213
 2010-07-23 03:29:59 +00:00
Chris Lattner
8697533a43 modernize stringset interface 
llvm-svn: 109212
 2010-07-23 03:21:53 +00:00
Bruno Cardoso Lopes
b5374c4b69 Declare CLMUL as a subtarget feature 
llvm-svn: 109207
 2010-07-23 01:22:45 +00:00
Bruno Cardoso Lopes
b034ffa291 Add x86 CLMUL (Carry-less multiplication) cpu feature 
llvm-svn: 109206
 2010-07-23 01:17:51 +00:00
Eric Christopher
308237108d 80-col. 
llvm-svn: 109205
 2010-07-23 01:05:59 +00:00
Bruno Cardoso Lopes
b9182e3051 Add complete assembler support for FMA3 instructions, with descriptions and encodings taken from the AVX manual 
llvm-svn: 109204
 2010-07-23 00:54:35 +00:00
Dale Johannesen
1ee436f417 The only supported calling convention for X86-64 uses 
SSE, so we can't return floating point values if this
is disabled.  Detect this error for clang.

With SSE1 only, f64 is a problem; it can be done, but
neither llvm-gcc nor clang has ever generated correct
code for it.  Since nobody noticed this I think it's
OK to treat it as an error for now.

This also handles SSE-sized vectors of floating point.
8207686, 8204109.

llvm-svn: 109201
 2010-07-23 00:30:35 +00:00
Bruno Cardoso Lopes
93fd8bdf6a Fix some AVX instructions which didnt had HasAVX prefix. And also a problem with PINSRW, which was totally wrong because of a typo I introduced previously 
llvm-svn: 109198
 2010-07-23 00:14:54 +00:00
Bob Wilson
b9478f4ef7 Add an explicit -sdk option to xcrun command. 
llvm-svn: 109196
 2010-07-22 23:33:00 +00:00
Eric Christopher
4bedc1720a Warnings patrol. 
llvm-svn: 109174
 2010-07-22 21:51:30 +00:00
Chris Lattner
50918fa8f0 missed a use of SizeRequired. 
llvm-svn: 109172
 2010-07-22 21:34:55 +00:00
Chris Lattner
a1dcdf0bd4 eliminate the TargetInstrInfo::GetInstSizeInBytes hook. 
ARM/PPC/MSP430-specific code (which are the only targets that
implement the hook) can directly reference their target-specific
instrinfo classes.

llvm-svn: 109171
 2010-07-22 21:27:00 +00:00
Chris Lattner
7c16f1a16e remove the dwarf sizing stuff which is now dead, it was 
"yet another" copy of the dwarf EH emission code that was
copied, pasted and slightly hacked up.

llvm-svn: 109169
 2010-07-22 21:20:39 +00:00
Bruno Cardoso Lopes
7722724eee Add remaining AVX instructions (most of them dealing with GR64 destinations. This complete the assembler support for the general AVX ISA. But we still miss instructions from FMA3 and CLMUL specific feature flags, which are now the next step 
llvm-svn: 109168
 2010-07-22 21:18:49 +00:00