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43958 Commits

Author SHA1 Message Date
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
Michael J. Spencer
1d95a8f9bc Support/FileSystem: Change file_status predicate functions that cannot fail to 
return their result instead of an error_code. Also add some missing predicate
functions.

llvm-svn: 121380
 2010-12-09 17:37:02 +00:00
Michael J. Spencer
15483143ec Support/MemoryBuffer: Replace all uses of std::string *ErrMsg with error_code &ec. And fix clients. 
llvm-svn: 121379
 2010-12-09 17:36:48 +00:00
Bruno Cardoso Lopes
93e5c2fb64 Add ROTR and ROTRV mips32 instructions. Patch by Akira Hatanaka 
llvm-svn: 121377
 2010-12-09 17:32:30 +00:00
Bruno Cardoso Lopes
0f5478218e Fix delay slot filler for non mips1 targets. Patch by Akira Hatanaka 
llvm-svn: 121376
 2010-12-09 17:31:11 +00:00
Kalle Raiskila
18da80f675 Dont' feed ILA two inputs - it takes just one. 
llvm-svn: 121372
 2010-12-09 16:17:31 +00:00
Jim Grosbach
4ad6abd006 tidy up. 
llvm-svn: 121371
 2010-12-09 16:15:41 +00:00
Jim Grosbach
9adf657f1a 80 columns. 
llvm-svn: 121370
 2010-12-09 16:14:46 +00:00
Chris Lattner
996691e79c enhance memcpyopt to zap memcpy's that have the same src/dst. 
llvm-svn: 121362
 2010-12-09 07:45:45 +00:00
Chris Lattner
4fef82afa0 fix PR8753, eliminating a case where we'd infinitely make a 
substitution because it doesn't actually change the IR.  Patch by
Jakub Staszak!

llvm-svn: 121361
 2010-12-09 07:39:50 +00:00
Eric Christopher
0e40452eb0 Rewrite the darwin tlv support to use a chain and return to copying 
the output to the correct register. Fixes a hidden problem uncovered
by the last patch where we'd try to DAG combine our MVT::Other node
oddly.

llvm-svn: 121358
 2010-12-09 06:25:53 +00:00
Owen Anderson
a882a78d4b Take the first step towards making LVI non-recursive: get rid of the LVIQuery abstraction. 
llvm-svn: 121357
 2010-12-09 06:14:58 +00:00
Eric Christopher
ebd7ab9857 80-col fixups. 
llvm-svn: 121356
 2010-12-09 04:48:06 +00:00
Wesley Peck
33ba317cf6 Reworking the stack layout generated by the MBlaze backend. 
llvm-svn: 121355
 2010-12-09 03:42:04 +00:00
Owen Anderson
96545f21b9 Fix encoding of the immediate operands on post-indexed LDR and friends. 
llvm-svn: 121354
 2010-12-09 02:56:12 +00:00
Dan Gohman
3d9fc7db03 Really check that the bits that will become zero are actually already zero 
before eliminating the operation that zeros them. This fixes rdar://8739316.

llvm-svn: 121353
 2010-12-09 02:52:17 +00:00
Eric Christopher
ea350b4c4b Fix up some comments. 
llvm-svn: 121351
 2010-12-09 01:57:45 +00:00
Owen Anderson
767a95816d Fix Thumb2 fixups for ldr. 
llvm-svn: 121350
 2010-12-09 01:51:07 +00:00
Jim Grosbach
5658d982b4 Add a textual message to the assert. 
llvm-svn: 121349
 2010-12-09 01:23:51 +00:00
Jim Grosbach
da9353523f Add a sanity check assert() for t2ADD/SUBrSPi instructions that they really are 
referencing the stack pointer as they say they are.

llvm-svn: 121347
 2010-12-09 01:22:19 +00:00
Jim Grosbach
fb71e10e93 When using multiple instructions to reference a frame index, make sure to 
update the opcode when necessary as well as the source register.

llvm-svn: 121346
 2010-12-09 01:22:13 +00:00
Jim Grosbach
e38a2a39c6 The add/sub SP instructions are really pseudos. The assembler should ignore 
them.

llvm-svn: 121345
 2010-12-09 01:21:27 +00:00
Jakob Stoklund Olesen
17b2e8c293 IntervalMap iterators are heavyweight, so avoid copying them around and use 
references instead.

Similarly, IntervalMap::begin() is almost as expensive as find(), so use find(x)
instead of begin().advanceTo(x);

This makes RegAllocBasic run another 5% faster.

llvm-svn: 121344
 2010-12-09 01:06:52 +00:00
Matt Beaumont-Gay
a8aa446938 Remove unused variables 
llvm-svn: 121343
 2010-12-09 01:04:43 +00:00
Owen Anderson
43177d405a Fix typo in Thumb2 branch fixup. 
llvm-svn: 121342
 2010-12-09 01:02:09 +00:00
Eric Christopher
64e662fce9 Stop confusing people, it's not really a chain, or a tumor. 
llvm-svn: 121340
 2010-12-09 00:57:19 +00:00
Bill Wendling
baf852a1d6 Remove extraneous semicolon. 
llvm-svn: 121338
 2010-12-09 00:51:54 +00:00
Bill Wendling
9205cc6ea8 Attempt to make the bit-twiddling readable resulted in the binary value being 
overwritten.

llvm-svn: 121337
 2010-12-09 00:44:33 +00:00
Bill Wendling
cd8fdfd65f The BLX instruction is encoded differently than the BL, because why not? In 
particular, the immediate has 20-bits of value instead of 21. And bit 0 is '0'
always. Going through the BL fixup encoding was trashing the "bit 0 is '0'"
invariant.

Attempt to get the encoding at slightly more correct with this.

llvm-svn: 121336
 2010-12-09 00:39:08 +00:00
Eric Christopher
0100a8fda4 Remove extraneous copy from DAG conversion for darwin tls. This was 
popping up at O0 when it wasn't folded and the fast allocator would
complain.

llvm-svn: 121330
 2010-12-09 00:27:58 +00:00
Owen Anderson
b956593730 Fix Thumb2 BCC encoding and fixups. 
llvm-svn: 121329
 2010-12-09 00:27:41 +00:00
Eric Christopher
cc8a622ca4 Add rsp to the uses for the same reason as 32-bit. 
llvm-svn: 121328
 2010-12-09 00:26:41 +00:00
Devang Patel
b3e0d80b1f DW_FORM_data1 may not provide sufficient room for vtable index, use _udata instead. 
This fixes radar 8730409.

llvm-svn: 121323
 2010-12-09 00:10:40 +00:00
Kevin Enderby
988dab6b5c Allow a slash, '/', as a prefix separator for X86. rdar://8741045 
llvm-svn: 121320
 2010-12-08 23:57:59 +00:00
Jakob Stoklund Olesen
ffc0f6586a Properly deal with empty intervals when checking for interference. 
llvm-svn: 121319
 2010-12-08 23:51:35 +00:00
Jason W Kim
e270068021 Style nit and whitespace cleanup 
llvm-svn: 121317
 2010-12-08 23:35:25 +00:00
Jim Grosbach
5a00173ead Clean up the add/sub w/ SP source reg instructions in Thumb2 a bit. Add a FIXME 
for more thorough cleanup.

llvm-svn: 121315
 2010-12-08 23:30:19 +00:00
Jim Grosbach
2eda2e0be9 Fix T2TwoRegImm and use it for t2ADDrSPi12 and friends. 
llvm-svn: 121314
 2010-12-08 23:24:29 +00:00
Jason W Kim
e8047d9ec4 Removed dead comment. 
llvm-svn: 121313
 2010-12-08 23:19:44 +00:00
Jason W Kim
2e6e50c1b0 ARM/MC/ELF TPsoft is now a proper pseudo inst. 
Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)

Also added support for ELF::R_ARM_TLS_IE32

llvm-svn: 121312
 2010-12-08 23:14:44 +00:00
Jim Grosbach
7a9e43e642 T2TwoRegImm isn't right for t2SUBrSPi12. Use T2I instead. 
llvm-svn: 121311
 2010-12-08 23:13:01 +00:00
Jim Grosbach
4f11f0f871 Add operand encoding for Thumb2 subw SP + imm. rdar://8745434 
llvm-svn: 121310
 2010-12-08 23:12:09 +00:00