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Author SHA1 Message Date
Jim Grosbach
7374e16344 Thumb .n mnemonic qualifiers can be ignored for now. 
We'll need to pay attention to them when we start getting more serious about
the details of parsing thumb2 assembly.

llvm-svn: 138500
 2011-08-24 22:19:48 +00:00
Jim Grosbach
effaf1e15d Thumb parsing and encoding for SUB (SP minu immediate). 
Fix FiXME in test file. Remove FIXME for SUB (SP minus register) since that
form is Thumb2 only.

llvm-svn: 138494
 2011-08-24 21:42:27 +00:00
Owen Anderson
3732f1644b Be careful not to walk off the end of the operand info list while updating VFP predicates. 
llvm-svn: 138492
 2011-08-24 21:35:46 +00:00
Jim Grosbach
b2b155a93f Thumb parsing and encoding support for ADD SP instructions. 
Fix the test FIXME and add parsing support for the ADD (SP plus immediate)
and ADD (SP plus register) instruction forms.

llvm-svn: 138488
 2011-08-24 21:22:15 +00:00
Eli Friedman
e4cd816e7b Fix whitespace. 
llvm-svn: 138487
 2011-08-24 21:17:30 +00:00
Eli Friedman
688794e1d1 Basic tests for atomic load and store on x86. 
llvm-svn: 138486
 2011-08-24 21:16:59 +00:00
Bill Wendling
15062f817a Skip the landingpad instruction when determining the insertion point. 
llvm-svn: 138481
 2011-08-24 21:06:46 +00:00
Eli Friedman
6f95a6ae1b Basic x86 code generation for atomic load and store instructions. 
llvm-svn: 138478
 2011-08-24 20:50:09 +00:00
Bill Wendling
0301dcfde8 Use getFirstInsertionPt instead of getFirstNonPHI so that it skips to the proper 
insertion place.

llvm-svn: 138473
 2011-08-24 20:28:43 +00:00
Eli Friedman
67b35cbeee Some minor updates to atomic acquire/release docs in LangRef. 
llvm-svn: 138472
 2011-08-24 20:28:39 +00:00
Nadav Rotem
43673d6d0b Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api. 
llvm-svn: 138469
 2011-08-24 20:18:38 +00:00
Jim Grosbach
ccee1ff0f5 When printing Thumb1 NOP ('mov r8, r8'), make sure to print the predicate. 
rdar://10015134

llvm-svn: 138467
 2011-08-24 20:06:14 +00:00
Bruno Cardoso Lopes
734febce18 Mark VZEROALL as clobbering all YMM registers 
llvm-svn: 138461
 2011-08-24 18:48:33 +00:00
Jim Grosbach
9ae0de4db3 Add missing explicit writeback operand to tSTMIA_UPD. 
rdar://10014745

llvm-svn: 138457
 2011-08-24 18:19:42 +00:00
Evan Cheng
420bf5446c Move TargetRegistry and TargetSelect from Target to Support where they belong. 
These are strictly utilities for registering targets and components.

llvm-svn: 138450
 2011-08-24 18:08:43 +00:00
Rafael Espindola
e864ec28bd Fix a crashing bug in SplitBlock when it is called on a block with no 
dominator information even though dominators were previously computed.

Patch by Nick Sumner.

llvm-svn: 138449
 2011-08-24 18:07:01 +00:00
Jim Grosbach
bf012c3f19 Thumb add SP assembly syntax fix. 
llvm-svn: 138448
 2011-08-24 18:04:27 +00:00
Jim Grosbach
b33129ebad Thumb1 ADD/SUB SP instructions are predicable in Thumb2 mode. 
Add the predicate operand to the instructions. Update the back end
accordingly where the instructions are used. Restrict the SP operands
to actually only be SP, as otherwise these break assembly parsing for the
normal instruction variants.

llvm-svn: 138445
 2011-08-24 17:46:13 +00:00
Owen Anderson
ee4d781cd3 Be stricter in enforcing IT instruction predicate values, so that we don't end up trying to print out an illegal predicate. 
llvm-svn: 138443
 2011-08-24 17:21:43 +00:00
Owen Anderson
6325690c08 Port over more encoding tests to decoding tests. 
llvm-svn: 138441
 2011-08-24 17:08:34 +00:00
Jim Grosbach
6d81544e1a Tidy up. Trailing whitespace. 
llvm-svn: 138437
 2011-08-24 16:44:17 +00:00
Richard Osborne
6b6b0b535d Add Uses=[SP] to call instructions. This fixes a miscompilation with a 
variable sized alloca.

llvm-svn: 138433
 2011-08-24 13:32:43 +00:00
Craig Topper
1da38a34a6 Break 256-bit vector int add/sub/mul into two 128-bit operations to avoid costly scalarization. Fixes PR10711. 
llvm-svn: 138427
 2011-08-24 06:14:18 +00:00
Bill Wendling
2cd76365f2 Add the sentinal "no handle" value to the ResumeInst. 
A value of -1 at a call site tells the personality function that this call isn't
handled by the current function. Since the ResumeInsts are converted to calls to
_Unwind_SjLj_Resume, add a (volatile) store of -1 to its 'call site'.

llvm-svn: 138416
 2011-08-24 00:00:23 +00:00
Bill Wendling
79b1f95f89 Don't replace *all* uses with the new stuff. 
This is not necessarily the first or dominating use of the EH values. The IR
breaks if it's not. So replace the specific value in the instruction with the
new value.

llvm-svn: 138406
 2011-08-23 22:55:03 +00:00
Bill Wendling
acd21d7162 Look at the end of the entry block for an invoke. 
The invoke could be at the end of the entry block. If it's the only one, then we
won't process all of the landingpad instructions correctly. This code is
currently ugly, but should be made much nicer once the new EH switch is thrown.

llvm-svn: 138397
 2011-08-23 22:20:16 +00:00
Bruno Cardoso Lopes
8959b54713 Fix a nasty bug where a v4i64 was being wrong emitted with 32-bit 
permutations. Also tidy up some patterns and make them close to their
instruction definition!

llvm-svn: 138392
 2011-08-23 22:06:37 +00:00
Bill Wendling
3de8a041b7 A landingpad instruction is neither folded nor dead. 
llvm-svn: 138387
 2011-08-23 21:33:05 +00:00
Jim Grosbach
b65ec7c64f Move ARM frame-unwinding EHABI handling a touch earlier. 
It should go before AsmPrinter MC pseudo expansion since it's based on
MachineInstr, not MCInst. Otherwise any frame related pseudo instructions
may be missed.

llvm-svn: 138386
 2011-08-23 21:32:34 +00:00
Jim Grosbach
3832c5ac34 [SU]XT[BH] are only available on ARMv6 and up. 
llvm-svn: 138373
 2011-08-23 20:53:08 +00:00
Nate Begeman
87ffb9491b Add some useful accessors to c++ api that appear to be missing from the c api 
llvm-svn: 138371
 2011-08-23 20:27:46 +00:00
Evan Cheng
ed13551c1d Some refactoring so TargetRegistry.h no longer has to include any files 
from MC.

llvm-svn: 138367
 2011-08-23 20:15:21 +00:00
Eric Christopher
aa4993b9aa Revert "Address Duncan's CR request:" 
This reverts commit 20a05be15ea5271ab6185b83200fa88263362400. (svn rev 138340)

Conflicts:

	test/Transforms/InstCombine/bitcast.ll

llvm-svn: 138366
 2011-08-23 20:11:10 +00:00
Jim Grosbach
f5d628146a Thumb parsing and encoding for WFE, WFI and YIELD. 
llvm-svn: 138364
 2011-08-23 20:02:30 +00:00
Jim Grosbach
9f0be95d20 Thumb parsing and encoding for UXTB and UXTH. 
llvm-svn: 138363
 2011-08-23 19:59:32 +00:00
Jim Grosbach
87c7a2b16b Thumb parsing and encoding for TST. 
llvm-svn: 138362
 2011-08-23 19:53:17 +00:00
Jim Grosbach
7ceb45dd61 Thumb parsing and encoding for SXTB and SXTH. 
llvm-svn: 138361
 2011-08-23 19:51:42 +00:00
Jim Grosbach
1f5b8e9044 Thumb parsing and encoding for SVC. 
llvm-svn: 138360
 2011-08-23 19:49:10 +00:00
Jim Grosbach
d343e1a13f Thumb parsing and encoding for SUB. 
llvm-svn: 138359
 2011-08-23 19:45:45 +00:00
Evan Cheng
ff0339eccc Fix 80 col violations. 
llvm-svn: 138356
 2011-08-23 19:17:21 +00:00
Nick Lewycky
11874a4e0a PerformSubCombine to work on integers larger than i128. Fixes a crasher. 
llvm-svn: 138354
 2011-08-23 19:01:24 +00:00
Jim Grosbach
9795206370 Thumb parsing and encoding for STRH. 
llvm-svn: 138352
 2011-08-23 18:56:20 +00:00
Caitlin Sadowski
9a011eafa9 Thread safety: Adding in an option for variadic expr* array of arguments 
llvm-svn: 138351
 2011-08-23 18:49:23 +00:00
Jim Grosbach
d507a9c6b9 Thumb parsing and encoding for STRB. 
llvm-svn: 138349
 2011-08-23 18:43:06 +00:00
Jim Grosbach
f9bc99b518 Thumb parsing and encoding for tSTRspi. 
llvm-svn: 138348
 2011-08-23 18:39:41 +00:00
Jim Grosbach
7ece5d431c Thumb parsing and encoding for STR. 
Not including tSTRspi.

llvm-svn: 138347
 2011-08-23 18:33:38 +00:00
Rafael Espindola
5ad9eaf265 Fix an example in the documentation. 
Patch by Sanjoy Das!

llvm-svn: 138346
 2011-08-23 18:26:56 +00:00
Jim Grosbach
3b20e779cd Thumb parsing and encoding for STM. 
llvm-svn: 138345
 2011-08-23 18:15:37 +00:00
Jim Grosbach
709c1644b0 Factor low reg checking into a helper function. 
llvm-svn: 138344
 2011-08-23 18:13:04 +00:00
Nadav Rotem
442df41879 Fix a typo in the test from the previous commit. 
llvm-svn: 138342
 2011-08-23 17:56:54 +00:00