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d30768fe3e
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43999 Commits

Author SHA1 Message Date
Bob Wilson
d30768fe3e Add float patterns for Neon vld1-lane/dup and vst1-lane operations. 
llvm-svn: 121583
 2010-12-10 22:13:32 +00:00
Bob Wilson
ae683e722f Remove unused arguments. 
llvm-svn: 121582
 2010-12-10 22:13:24 +00:00
Owen Anderson
aaf97da84b Fix encoding of Thumb1 LDRB and STRB. 
llvm-svn: 121581
 2010-12-10 22:11:13 +00:00
Jim Grosbach
d7f424dec3 Trailing whitespace. 
llvm-svn: 121580
 2010-12-10 21:57:34 +00:00
Owen Anderson
44ad90c850 Fix Thumb2 encodings of STREX and LDREX. 
llvm-svn: 121579
 2010-12-10 21:52:38 +00:00
Dan Gohman
18e2a55c07 Revert r121520, which may have introduced miscompilations. 
llvm-svn: 121573
 2010-12-10 21:48:28 +00:00
Jim Grosbach
82dd80c956 Correct encoding of rotation immediate for Thumb2 instructions. rdar://8755999 
llvm-svn: 121525
 2010-12-10 21:24:18 +00:00
Jim Grosbach
63853d61e1 Fix encoding of 'U' bit for Thumb2 STRD/LDRD instructions. rdar://8755726 
llvm-svn: 121524
 2010-12-10 21:05:07 +00:00
Jim Grosbach
467e860805 More trivial cleanup. No need to define the EncoderMethod property type. Can 
just assign to it.

llvm-svn: 121523
 2010-12-10 20:53:44 +00:00
Jim Grosbach
5696d964ca Tidy up. 
llvm-svn: 121522
 2010-12-10 20:51:35 +00:00
Jim Grosbach
401391235f Trailing whitespace. 
llvm-svn: 121521
 2010-12-10 20:47:29 +00:00
Dan Gohman
d1bf1d8013 Implement PartialAlias checking in BasicAA. 
llvm-svn: 121520
 2010-12-10 20:47:03 +00:00
Jakob Stoklund Olesen
ea59381fc8 Fix miscompilation caused by trivial logic error in the reassignVReg() 
interference check.

llvm-svn: 121519
 2010-12-10 20:45:04 +00:00
Dan Gohman
b0fa0f7849 Minimally update this code to handle PartialAlias. 
llvm-svn: 121518
 2010-12-10 20:14:49 +00:00
Dan Gohman
98f5b2ae22 Use PartialAlias to do better noalias lint checking. 
llvm-svn: 121514
 2010-12-10 20:04:06 +00:00
Dan Gohman
cbee92bb65 Teach AliasAnalysisCounter about PartialAlias. 
llvm-svn: 121513
 2010-12-10 19:53:05 +00:00
Dan Gohman
26e1b4ac11 Teach AliasAnalysisEvaluator about PartialAlias. 
llvm-svn: 121512
 2010-12-10 19:52:40 +00:00
Dan Gohman
9e03ffc789 Update this code to handle PartialAlias as MayAlias. 
llvm-svn: 121508
 2010-12-10 19:40:47 +00:00
Bob Wilson
5ff13f9d5c Fix some invalid alignments for Neon vld-dup and vld/st-lane instructions. 
Alignments smaller than the total size of the memory being loaded or stored,
unless the alignment is 8 bytes, are not allowed.  Add tests for this, too.

llvm-svn: 121506
 2010-12-10 19:37:42 +00:00
Jim Grosbach
4a414e1973 Teach isCSRestore() that ARM/Thumb2 functions will use post-modify LDR 
instructions to restore a single register rather than an LDM instruction.
rdar://8754999

llvm-svn: 121498
 2010-12-10 18:41:15 +00:00
Jakob Stoklund Olesen
e3924a3c85 Add an AllocationOrder class that can iterate over the allocatable physical 
registers for a given virtual register.

Reserved registers are filtered from the allocation order, and any valid hint is
returned as the first suggestion.

For target dependent hints, a number of arcane target hooks are invoked.

llvm-svn: 121497
 2010-12-10 18:36:02 +00:00
Jim Grosbach
a378c43eae Thumb unconditional branch binary encoding. rdar://8754994 
llvm-svn: 121496
 2010-12-10 18:21:33 +00:00
Jim Grosbach
905301a7d8 Thumb conditional branch binary encodings. rdar://8745367 
llvm-svn: 121493
 2010-12-10 17:13:40 +00:00
Rafael Espindola
0e665e502d Fixed version of 121434 with no new memory leaks. 
llvm-svn: 121471
 2010-12-10 07:39:47 +00:00
Daniel Dunbar
fd96efb8e9 Mach-O: Tweak field name. 
llvm-svn: 121465
 2010-12-10 06:19:39 +00:00
Rafael Espindola
676ea9d9b4 Fix cmake build. 
llvm-svn: 121462
 2010-12-10 04:28:37 +00:00
Rafael Espindola
011e168728 Revert my previous patch to make the valgrind bots happy. 
llvm-svn: 121461
 2010-12-10 04:01:09 +00:00
NAKAMURA Takumi
e3f485b0dc lib/Target/CMakeLists.txt: Add missing lib/Target/TargetAsmInfo.cpp, following up to r121434. 
llvm-svn: 121454
 2010-12-10 02:15:24 +00:00
Kevin Enderby
a2efb1ad4e Fix the leak from r121401 of the Operands erased in the list but not deleted. 
llvm-svn: 121450
 2010-12-10 01:41:56 +00:00
Nate Begeman
8c00ecd290 Add some missing predicates. 
llvm-svn: 121445
 2010-12-10 00:54:26 +00:00
Nate Begeman
cb6d1c8193 Formalize the notion that AVX and SSE are non-overlapping extensions from the compiler's point of view. Per email discussion, we either want to always use VEX-prefixed instructions or never use them, and are taking "HasAVX" to mean "Always use VEX". Passing -mattr=-avx,+sse42 should serve to restore legacy SSE support when desirable. 
llvm-svn: 121439
 2010-12-10 00:26:57 +00:00
Rafael Espindola
03ad1e8f1f Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434
 2010-12-09 23:48:29 +00:00
Rafael Espindola
ebe4cab1db Use const references. 
llvm-svn: 121426
 2010-12-09 23:08:35 +00:00
Bill Wendling
f8eaf8a243 Thumb ldr reg+imm offsets were encoded incorrectly. The scaling factor of the 
t_addrmode_s# address modes is used for ASM printing, not for encoding.
<rdar://problem/8745375>

llvm-svn: 121417
 2010-12-09 21:49:07 +00:00
Nate Begeman
4a62a3e229 Add support for AVX to materialize +0.0 when doing scalar FP. 
llvm-svn: 121415
 2010-12-09 21:43:51 +00:00
Owen Anderson
4be3b6db5c Use the new IsAligned fixup flag to improve fixup encodings for Thumb2 branches. This is still not perfect, 
but it gets many more of them correct than it did previously.

llvm-svn: 121414
 2010-12-09 21:34:47 +00:00
Stuart Hastings
f7bba0cfe3 Initial support for nested CALLSEQ_START/CALLSEQ_END constructs in LegalizeDAG. 
Necessary for byval support on ARM.  Radar 7662569.

llvm-svn: 121412
 2010-12-09 21:25:20 +00:00
Jakob Stoklund Olesen
fe4b9ee934 Remember to filter out reserved rergisters from the allocation order. 
llvm-svn: 121411
 2010-12-09 21:20:46 +00:00
Jakob Stoklund Olesen
5bb5c67227 Add a forgotten initializer for CheckedFirstInterference. 
llvm-svn: 121410
 2010-12-09 21:20:44 +00:00
Owen Anderson
a8ac35b468 Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating 
the offset.  Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this.  It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.

llvm-svn: 121408
 2010-12-09 20:27:52 +00:00
Jim Grosbach
61fe7b9ee5 Rename CB/CBZ specific fixup accordingly. 
llvm-svn: 121404
 2010-12-09 19:50:12 +00:00
Devang Patel
bef09ddec8 Add assert to catch an attempt to emit .byte 256 
llvm-svn: 121402
 2010-12-09 19:26:21 +00:00
Kevin Enderby
55cb19813e Add support for parsing ARM arithmetic instructions that update or don't update 
the condition codes.  Where the ones that do have an 's' suffix and the ones
that don't don't have the suffix.  The trick is if MatchInstructionImpl() fails
we try again after adding a CCOut operand with the correct value and removing
the 's' if present.  Four simple test cases added for now, lots more to come.

llvm-svn: 121401
 2010-12-09 19:19:43 +00:00
Jim Grosbach
9b3730fc77 Rename the encoder method for t_cbtarget to match. 
llvm-svn: 121399
 2010-12-09 19:04:53 +00:00
Jim Grosbach
57d420438a Thumb needs a few different encoding schemes for branch targets. Rename 
t_brtarget to be more specific.

llvm-svn: 121398
 2010-12-09 19:01:46 +00:00
Jim Grosbach
8bc33cc6e5 ARM stm/ldm instructions require more than one register in the register list. 
Otherwise, a plain str/ldr should be used instead. Make sure we account for
that in prologue/epilogue code generation.
rdar://8745460

llvm-svn: 121391
 2010-12-09 18:31:13 +00:00
Andrew Trick
ec37b93b07 Added register reassignment prototype to RAGreedy. It's a simple 
heuristic to reshuffle register assignments when we can't find an
available reg.

llvm-svn: 121388
 2010-12-09 18:15:21 +00:00
Michael J. Spencer
3dbfb7c62e Support/Windows/PathV2: Fix header comment. 
llvm-svn: 121383
 2010-12-09 17:37:42 +00:00
Michael J. Spencer
95b8bf9f67 Fix whitespace. 
llvm-svn: 121382
 2010-12-09 17:37:32 +00:00
Michael J. Spencer
c4c4e1133d Support: Move c_str from SmallVector back to SmallString and add a free standing 
templated c_str in Windows.h to replace it.

llvm-svn: 121381
 2010-12-09 17:37:18 +00:00