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Author SHA1 Message Date
Erick Tryzelaar
935d99e9df Fix gcc-4.4/fedora 11 by adding a sentinel value to SimpleValueType. 
gcc-4.4 was optimizing away comparisons against SimpleValueType when
it was compared to a value larger than the largest value in the enum.
This patch works around it by adding one extra item to the enum so
that these tests will now be valid.

llvm-svn: 79401
 2009-08-19 02:53:07 +00:00
Lang Hames
c26fb5727a Added an option to have the PBQP allocator attempt coalescing during allocation. 
llvm-svn: 79397
 2009-08-19 01:36:14 +00:00
Owen Anderson
bd652bf082 Revert my last patch temporarily. 
llvm-svn: 79388
 2009-08-19 00:52:13 +00:00
Owen Anderson
69a97af0b7 Privatize part of the leak detector mechanism, which turned out to be heavily contended 
when trying to run opt in parallel.  This lets parallel opt crunch 403.gcc in about a third
of the time.

llvm-svn: 79387
 2009-08-19 00:37:02 +00:00
Daniel Dunbar
fcac7e7345 raw_ostream: Simplify write(unsigned char) to match write(const char*, unsigned). 
llvm-svn: 79386
 2009-08-19 00:23:39 +00:00
Daniel Dunbar
6584ac1900 raw_ostream: Remove pointless redefinitions of tell(). 
- The base class implementation is correct.

llvm-svn: 79385
 2009-08-19 00:14:25 +00:00
Dan Gohman
807652ac3a Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden 
before performing optimizations based on constant string values.

llvm-svn: 79384
 2009-08-19 00:11:12 +00:00
Dan Gohman
1526c115c0 Be tidy and use a break to exit from a switch block rather than 
just falling through the end.

llvm-svn: 79383
 2009-08-18 23:52:48 +00:00
Daniel Dunbar
2f3cfb4d35 raw_ostream: Add the capability for subclasses to manually install an external 
buffer.

llvm-svn: 79382
 2009-08-18 23:42:36 +00:00
Dan Gohman
56c2c54a37 Legalize the shift amount operand of SRL_PARTS, SHL_PARTS, and 
SRA_PARTS, as is done for SRL, SHL, and SRA.

llvm-svn: 79380
 2009-08-18 23:36:17 +00:00
Daniel Dunbar
85b15d8e71 raw_ostream: Reduce FormattedStream's reliance on raw_ostream's implementation. 
- Kill off begin(), end(), and iterator. It isn't clear what these
   mean. Instead provide getBufferStart(), which can be used with
   GetNumBytesInBuffer to the same effect.

 - Update ComputeColumn to take arguments for the buffer to scan, this
   simplifies the implementation of write_impl substantially.

 - This should also fix possible problems with the scanning pointer pointing
   outside of the current raw_ostream buffer.

llvm-svn: 79379
 2009-08-18 23:36:04 +00:00
Lang Hames
0e2ecec9f9 Changes DOUT references in the PBQP allocator to use DEBUG(errs() ...) 
llvm-svn: 79378
 2009-08-18 23:34:50 +00:00
Eric Christopher
32d5222c4e Implement sse4.2 string/text processing instructions: 
Add patterns and instruction encoding information.
Add custom lowering to deal with hardwired return register of
uncertain type (xmm0).

llvm-svn: 79377
 2009-08-18 22:50:32 +00:00
Tanya Lattner
89d661628a First steps to document new release plan. 
llvm-svn: 79376
 2009-08-18 22:33:28 +00:00
Daniel Dunbar
8a23b8621a Speed up raw_ostream::<<(unsigned long long) for 32-bit systems by doing most 
div/mods in 32-bits.

llvm-svn: 79375
 2009-08-18 22:24:00 +00:00
Jakob Stoklund Olesen
9496240bbf Simplify RegScavenger::FindUnusedReg. 
- Drop the Candidates argument and fix all callers. Now that RegScavenger
  tracks available registers accurately, there is no need to restict the
  search.
- Make sure that no aliases of the found register are in use. This was a potential bug.

llvm-svn: 79369
 2009-08-18 21:14:54 +00:00
Richard Osborne
a3a49aeee0 Add support for mergeable sections back into the XCore backend. 
llvm-svn: 79368
 2009-08-18 21:14:31 +00:00
Dan Gohman
1d84247c99 Fix a bug in raw_ostream::write(char) introduced by the change to 
allow underlying stream classes to decline buffering. After
calling SetBuffered(), re-check whether the stream is Unbuffered
in order to handle the case where the underlying stream has
declined buffering.

llvm-svn: 79362
 2009-08-18 20:09:59 +00:00
Daniel Dunbar
5aa51a83c7 Revert r78924, disabling buffering defeats all the fast paths in raw_ostream. 
llvm-svn: 79361
 2009-08-18 20:07:36 +00:00
Daniel Dunbar
d334c67f60 Improve Triple to recognize the OS in i386-mingw32. 
llvm-svn: 79359
 2009-08-18 19:26:55 +00:00
David Greene
4347d5d424 Make various changes suggested by Chris. 
llvm-svn: 79358
 2009-08-18 19:22:55 +00:00
Misha Brukman
e3144b3414 Surrounded variable in <tt> tags for consistency. 
llvm-svn: 79357
 2009-08-18 19:18:40 +00:00
Daniel Dunbar
09f40a7871 Fix pasto in StringRef::count(char) 
llvm-svn: 79356
 2009-08-18 18:34:22 +00:00
Owen Anderson
73825c1f37 Privatize the ValueHandle global map. Because this is used so heavily throughout the code base, locking all accesses to 
it is not practical performance-wise.

llvm-svn: 79355
 2009-08-18 18:28:58 +00:00
Daniel Dunbar
4a9a98a5de Add StringRef::count({char,StringRef}) 
llvm-svn: 79354
 2009-08-18 18:26:35 +00:00
Erick Tryzelaar
fc2856cec4 Fix an uninitialized value warning in APFloat. 
llvm-svn: 79353
 2009-08-18 18:20:37 +00:00
Eric Christopher
80e419f6f0 Add CXXFLAGS to the Link lines as well in case someone used those instead 
of LDFLAGS.

llvm-svn: 79352
 2009-08-18 18:07:35 +00:00
Richard Osborne
84785e0714 Put data with relocations in the same sections as data without relocations. 
llvm-svn: 79351
 2009-08-18 17:58:17 +00:00
Daniel Dunbar
27561281b3 Attempt to normalize test results. 
llvm-svn: 79350
 2009-08-18 17:38:27 +00:00
Dan Gohman
b2e9d23bd9 Make this test less sensitive to assembler differences. 
llvm-svn: 79348
 2009-08-18 17:19:46 +00:00
Chris Lattner
98b4096316 alphabeticalize 
llvm-svn: 79347
 2009-08-18 17:04:44 +00:00
Chris Lattner
17c3a9cf99 fix COFF targets (mingw/cygwin) to provide ehframe and LSDA sections 
llvm-svn: 79346
 2009-08-18 16:56:17 +00:00
Chris Lattner
f0cde76e79 force a triple so this passes on darwin 
llvm-svn: 79345
 2009-08-18 16:55:45 +00:00
Dan Gohman
b0cf049a1e Generalize ScalarEvolution to be able to analyze GEPs when 
TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.

llvm-svn: 79344
 2009-08-18 16:46:41 +00:00
Chris Lattner
bc4e7e0815 null streamer needs to maintain the current section as well. 
llvm-svn: 79343
 2009-08-18 16:46:29 +00:00
Oscar Fuentes
896c999947 CMake: LLVM_ENABLE_PIC now defaults to ON, as in `configure'. This is 
required on some platforms for building shared libraries that link to
the LLVM libraries.

llvm-svn: 79339
 2009-08-18 15:29:35 +00:00
Dan Gohman
5022dd9cc9 Make tail merging handle blocks with repeated predecessors correctly, and 
remove RemoveDuplicateSuccessor, as it is no longer necessary, and because
it breaks assumptions made in
MachineBasicBlock::isOnlyReachableByFallthrough.

Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase
for PR4732.

test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to
it being bugpoint-reduced to the point where it doesn't matter what the
condition for the branch is.

Add some more interesting code to
test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase
that originally motivated the RemoveDuplicateSuccessor code, to help
verify that the original problem isn't being re-broken.

llvm-svn: 79338
 2009-08-18 15:18:18 +00:00
Dan Gohman
0b1af29372 Fix a bug that caused globalopt to miscompile tramp3d: don't miss 
unruly indices for arrays that are members of structs.

llvm-svn: 79337
 2009-08-18 14:58:19 +00:00
Anton Korobeynikov
d2d8c91b9f Text sections should have 'exec' flag set. This seems to unbreak libstdc++ on linux. 
Patch by Dmitry Gorbachev!

llvm-svn: 79334
 2009-08-18 14:06:12 +00:00
Misha Brukman
0961ce48c4 Fixed spelling of MSP430. 
llvm-svn: 79333
 2009-08-18 13:50:28 +00:00
Daniel Dunbar
6d9b38bd58 Fix Triple to recognize the 'bfin' arch. 
llvm-svn: 79325
 2009-08-18 07:06:26 +00:00
Chris Lattner
b82fc63e02 Make AsmStreamer maintain a notion of the current section, pushing it up from the 
MCAsmStreamer.  Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert.  This change is in preparation for completely eliminating 
asmprinter::switchtosection.

llvm-svn: 79324
 2009-08-18 06:15:16 +00:00
Chris Lattner
7a382434b5 add a horrible hack to the dwarf printer. It looks like mingw is not specifying 
an EHFrame section, so we just emit ehframe data into a random section.

This is clearly bad.

llvm-svn: 79323
 2009-08-18 06:13:03 +00:00
Nick Lewycky
6e6623b451 Include valgrind in the steps to reproduce if valgrind was used to reproduce 
the problem.

llvm-svn: 79322
 2009-08-18 06:08:01 +00:00
Chris Lattner
e01c6eb25a remove some pointless null switchtosections. The IntelAsmPrinter doesn't really work anyway. 
llvm-svn: 79321
 2009-08-18 06:03:07 +00:00
Evan Cheng
d4d2a3d0a6 Fix revsh pattern. 
llvm-svn: 79318
 2009-08-18 05:43:23 +00:00
Chris Lattner
178666f2e3 add support for some targetflags on GV operands. This allows us to 
send instructions like:

NEW: 	movl	"L___stack_chk_guard$non_lazy_ptr" - "L1$pb"(%esi), %eax
OLD: 	movl	L___stack_chk_guard$non_lazy_ptr-"L1$pb"(%esi), %eax

through the streamer.  Several fixmes.

llvm-svn: 79317
 2009-08-18 05:33:27 +00:00
Daniel Dunbar
763d4d3648 Recognize xscale as an ARM arch. 
- Patch by Yonggang Luo.

llvm-svn: 79315
 2009-08-18 04:51:26 +00:00
Daniel Dunbar
d4a31156e7 Add Triple matching for pic16 arch and solaris OS. 
- Patch by Yonggang Luo.

llvm-svn: 79314
 2009-08-18 04:43:27 +00:00
Chris Lattner
4efe44f456 fix another bozo bug 
llvm-svn: 79313
 2009-08-18 04:34:36 +00:00