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Author SHA1 Message Date
Jay Foad
770a07e1a3 Fix more zero length memset warnings. 
llvm-svn: 128543
 2011-03-30 15:31:02 +00:00
Jay Foad
bab2718661 Add a comment on PHINode::Create(). 
llvm-svn: 128540
 2011-03-30 13:29:06 +00:00
Jay Foad
53632b7c03 Remove PHINode::reserveOperandSpace(). Instead, add a parameter to 
PHINode::Create() giving the (known or expected) number of operands.

llvm-svn: 128537
 2011-03-30 11:28:46 +00:00
Jay Foad
dc5a008237 (Almost) always call reserveOperandSpace() on newly created PHINodes. 
llvm-svn: 128535
 2011-03-30 11:19:20 +00:00
Bob Wilson
41d1bf3f9f Revert a minor comment change inadvertently included with r128502. 
llvm-svn: 128526
 2011-03-30 05:26:51 +00:00
Jakob Stoklund Olesen
8ce46ee438 Treat clones the same as their origin. 
When DCE clones a live range because it separates into connected components,
make sure that the clones enter the same register allocator stage as the
register they were cloned from.

For instance, clones may be split even when they where created during spilling.
Other registers created during spilling are not candidates for splitting or even
(re-)spilling.

llvm-svn: 128524
 2011-03-30 02:52:39 +00:00
Bill Wendling
c007d0af6d Remove dead code. 
llvm-svn: 128519
 2011-03-30 01:03:48 +00:00
Johnny Chen
326082e0b2 Add a test case for thumb stc2 instruction. 
llvm-svn: 128517
 2011-03-30 01:02:06 +00:00
Argyrios Kyrtzidis
bea6ccf737 ClangSAEmClangSACheckersEmitter, emit info about groups. 
llvm-svn: 128515
 2011-03-30 00:22:00 +00:00
Bill Wendling
83903bc85f Set the unnamed_addr only when we're creating a new GV in the dest module. 
llvm-svn: 128507
 2011-03-29 23:31:06 +00:00
Bill Wendling
48a0bb7712 Revert r128501. It caused test failures. 
llvm-svn: 128506
 2011-03-29 23:28:02 +00:00
Jim Grosbach
47b87dbc29 Tidy up. 80 columns and trailing whitespace. 
llvm-svn: 128504
 2011-03-29 23:20:22 +00:00
Francois Pichet
7ba639e6f5 Update CMake link dependency. 
llvm-svn: 128503
 2011-03-29 23:18:51 +00:00
Evan Cheng
ed09135349 Add intrinsics @llvm.arm.neon.vmulls and @llvm.arm.neon.vmullu.* back. Frontends 
was lowering them to sext / uxt + mul instructions. Unfortunately the
optimization passes may hoist the extensions out of the loop and separate them.
When that happens, the long multiplication instructions can be broken into
several scalar instructions, causing significant performance issue.

Note the vmla and vmls intrinsics are not added back. Frontend will codegen them
as intrinsics vmull* + add / sub. Also note the isel optimizations for catching
mul + sext / zext are not changed either.

First part of rdar://8832507, rdar://9203134

llvm-svn: 128502
 2011-03-29 23:06:19 +00:00
Bill Wendling
ed457e662c We need to copy over the unnamed_addr attribute. 
llvm-svn: 128501
 2011-03-29 23:05:41 +00:00
Matt Beaumont-Gay
50e8fa1c50 Revert accidental change to LLVMLibDeps.cmake 
llvm-svn: 128499
 2011-03-29 22:42:41 +00:00
Matt Beaumont-Gay
bf215beedb Quiet a gcc warning about changed name lookup rules 
llvm-svn: 128497
 2011-03-29 22:25:36 +00:00
Benjamin Kramer
4ae67c9fcb InstCombine: Add a few missing combines for ANDs and ORs of sign bit tests. 
On x86 we now compile "if (a < 0 && b < 0)" into
	testl	%edi, %esi
	js	IF.THEN

llvm-svn: 128496
 2011-03-29 22:06:41 +00:00
Kevin Enderby
976435fa83 Adding a test for "-inf" as well. 
llvm-svn: 128495
 2011-03-29 21:54:10 +00:00
Johnny Chen
28a32ef2d7 Add a test case for MSRi. 
llvm-svn: 128494
 2011-03-29 21:52:02 +00:00
Cameron Zwarich
95260e5ebb Add Neon SINT_TO_FP and UINT_TO_FP lowering from v4i16 to v4f32. Fixes 
<rdar://problem/8875309> and <rdar://problem/9057191>.

llvm-svn: 128492
 2011-03-29 21:41:55 +00:00
Jakob Stoklund Olesen
a292fa3d1e Recompute register class and hint for registers created during spilling. 
The spill weight is not recomputed for an unspillable register - it stays infinite.

llvm-svn: 128490
 2011-03-29 21:20:19 +00:00
Argyrios Kyrtzidis
e923f22a2e In ClangSACheckersEmitter: 
- Also emit a list of packages and groups sorted by name
  - Avoid iterating over DenseSet so that the output of the arrays is deterministic.

llvm-svn: 128489
 2011-03-29 21:16:19 +00:00
Kevin Enderby
1ece39d99c Added support symbolic floating point constants in the MC assembler for Infinity 
and Nans with the same strings as GAS supports.  rdar://8673024

llvm-svn: 128488
 2011-03-29 21:11:52 +00:00
Johnny Chen
3c4cb78640 Add a thumb test file for printf (iOS 4.3). 
llvm-svn: 128487
 2011-03-29 21:09:30 +00:00
Jim Grosbach
30c2338560 Instantiate a JITMemoryManager for MCJIT Dyld 
llvm-svn: 128485
 2011-03-29 21:03:05 +00:00
Oscar Fuentes
4fe82e640f Fixed the build of Clang's unit tests on MinGW. Also removed some 
unnecesary conditionals and introduced a new convenience function.

The problem was that the list of libraries for Clang's unit tests was
<clang libraries> <system libraries> <llvm libraries>. As the llvm
libraries references symbols defined on the system libraries, those
were reported as undefined.

llvm-svn: 128484
 2011-03-29 20:51:08 +00:00
Benjamin Kramer
a28b1da096 DSE: Remove an early exit optimization that depended on the ordering of a SmallPtrSet. 
Fixes PR9569 and will hopefully make selfhost on ASLR-enabled systems more deterministic.

llvm-svn: 128482
 2011-03-29 20:28:57 +00:00
Owen Anderson
c2b8d6ac65 Check early if this is an unsupported opcode, so that we can avoid needlessly instantiating the base register in some cases. 
llvm-svn: 128481
 2011-03-29 20:27:38 +00:00
Johnny Chen
ab342ac374 A8.6.188 STC, STC2 
The STC_OPTION and STC2_OPTION instructions should have their coprocessor option enclosed in {}.

rdar://problem/9200661

llvm-svn: 128478
 2011-03-29 19:49:38 +00:00
Johnny Chen
9a61664869 Rename invalid-VLDMSDB-arm.txt to be invalid-VLDMSDB_UPD-arm.txt. 
llvm-svn: 128477
 2011-03-29 19:10:06 +00:00
Johnny Chen
1cd323de0a Add and modify some tests. 
llvm-svn: 128476
 2011-03-29 19:08:52 +00:00
Argyrios Kyrtzidis
71261edb9b For ClangSACheckersEmitter, allow a package to belong to checker group, in which all its checkers will go into the group. 
llvm-svn: 128474
 2011-03-29 18:53:00 +00:00
Jakob Stoklund Olesen
229e589bd1 Remember to use the correct register when rematerializing for snippets. 
llvm-svn: 128469
 2011-03-29 17:47:02 +00:00
Jakob Stoklund Olesen
4676323ac8 Run dead code elimination immediately after rematerialization. 
This may eliminate some uses of the spilled registers, and we don't want to
insert reloads for that.

llvm-svn: 128468
 2011-03-29 17:47:00 +00:00
Owen Anderson
3310282e25 Add safety check that didn't show up in testing. 
llvm-svn: 128467
 2011-03-29 17:42:25 +00:00
Devang Patel
1b0c19617d Document llvm.dbg.sp, llvm.dbg.gv and llvm.dbg.enum 
llvm-svn: 128466
 2011-03-29 17:27:08 +00:00
Bill Wendling
7469ccb3bd Inline check that's used only once. 
llvm-svn: 128465
 2011-03-29 17:12:55 +00:00
Owen Anderson
d73041e884 Get rid of the non-writeback versions VLDMDB and VSTMDB, which don't actually exist. 
llvm-svn: 128461
 2011-03-29 16:45:53 +00:00
Bill Wendling
47b8e67328 Rework the logic (and removing the bad check for an unreachable block) so that 
the FailBB dominator is correctly calculated. Believe it or not, there isn't a
functionality change here.

llvm-svn: 128455
 2011-03-29 07:28:52 +00:00
Cameron Zwarich
d49e32233c Do some simple copy propagation through integer loads and stores when promoting 
vector types. This helps a lot with inlined functions when using the ARM soft
float ABI. Fixes <rdar://problem/9184212>.

llvm-svn: 128453
 2011-03-29 05:19:52 +00:00
Bill Wendling
ded022ad8b Don't try to add stack protector logic to a dead basic block. It messes up 
dominator information.

llvm-svn: 128452
 2011-03-29 05:15:48 +00:00
Bill Wendling
59493294dd Spruce up the error output. 
llvm-svn: 128451
 2011-03-29 04:28:26 +00:00
Jakob Stoklund Olesen
a92d74e8cb Handle the special case when all uses follow the last split point. 
llvm-svn: 128450
 2011-03-29 03:12:04 +00:00
Jakob Stoklund Olesen
c209e050dd Properly enable rematerialization when spilling after live range splitting. 
The instruction to be rematerialized may not be the one defining the register
that is being spilled. The traceSiblingValue() function sees through sibling
copies to find the remat candidate.

llvm-svn: 128449
 2011-03-29 03:12:02 +00:00
Daniel Dunbar
26ea306fac C-API: Include DataTypes.h instead of stdint.h. 
llvm-svn: 128446
 2011-03-29 02:30:34 +00:00
Rafael Espindola
b103223cdd Reduce test case. 
llvm-svn: 128445
 2011-03-29 02:18:54 +00:00
Evan Cheng
5bcaef9cc9 Optimizing (zext A + zext B) * C, to (VMULL A, C) + (VMULL B, C) during 
isel lowering to fold the zero-extend's and take advantage of no-stall
back to back vmul + vmla:
 vmull q0, d4, d6
 vmlal q0, d5, d6
is faster than
 vaddl q0, d4, d5
 vmovl q1, d6                                                                                                                                                                             
 vmul  q0, q0, q1

This allows us to vmull + vmlal for:
    f = vmull_u8(   vget_high_u8(s), c);
    f = vmlal_u8(f, vget_low_u8(s),  c);

rdar://9197392

llvm-svn: 128444
 2011-03-29 01:56:09 +00:00
Francois Pichet
b4a845ecbe Fix the MSVC build. 
llvm-svn: 128441
 2011-03-29 00:30:01 +00:00
Devang Patel
db381d9aff Expoert c interface for disassembler. 
llvm-svn: 128440
 2011-03-29 00:01:39 +00:00