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eedaf01042
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246 Commits

Author SHA1 Message Date
Richard Barton
eedaf01042 Correct decoder for T1 conditional B encoding 
llvm-svn: 158055
 2012-06-06 09:12:53 +00:00
Silviu Baranga
5138c169b1 Added the missing bit definition for the 4th bit of the STR (post reg) instruction. It is now set to 0. The patch also sets the unpredictable mask for SEL and SXTB-type instructions. 
llvm-svn: 156609
 2012-05-11 09:28:27 +00:00
Kevin Enderby
1ab00df6a7 Fix issues with the ARM bl and blx thumb instructions and the J1 and J2 bits 
for the assembler and disassembler.  Which were not being set/read correctly
for offsets greater than 22 bits in some cases.

Changes to lib/Target/ARM/ARMAsmBackend.cpp from Gideon Myles!

llvm-svn: 156118
 2012-05-03 22:41:56 +00:00
Silviu Baranga
b5e46c12d6 Fixed disassembler for vstm/vldm ARM VFP instructions. 
llvm-svn: 156077
 2012-05-03 16:38:40 +00:00
Richard Barton
249de35aaa Disallow YIELD and other allocated nop hints in pre-ARMv6 architectures. 
llvm-svn: 155983
 2012-05-02 09:43:18 +00:00
Evan Cheng
505263cb36 Specify cpu to unbreak tests. 
llvm-svn: 155604
 2012-04-26 01:38:10 +00:00
Kevin Enderby
f954efdbea Add missing test cases for ARM VLD3 (single 3-element structure to all lanes) 
instructions.

llvm-svn: 155453
 2012-04-24 17:45:56 +00:00
Kevin Enderby
e7378cb42d Add missing test cases for ARM VLD4 (single 4-element structure to all lanes) 
instructions.

llvm-svn: 155444
 2012-04-24 15:55:00 +00:00
Silviu Baranga
f810ee56fb Added support for disassembling unpredictable swp/swpb ARM instructions. 
llvm-svn: 155004
 2012-04-18 14:18:57 +00:00
Silviu Baranga
2bbf74b42f Fix the bahavior of the disassembler when decoding unpredictable mrs instructions on ARM. Now the diasassembler emmits warnings instead of errors. 
llvm-svn: 155002
 2012-04-18 14:09:07 +00:00
Silviu Baranga
82d7afd0d2 Added support for unpredictable mcrr/mcrr2/mrrc/mrrc2 ARM instruction in the disassembler. Since the upredicability conditions are complex, C++ code was added to handle them. 
llvm-svn: 155001
 2012-04-18 13:12:50 +00:00
Silviu Baranga
8e0ebc8ed7 Fixed decoding for the ARM cdp2 instruction. The restriction on the coprocessor number was removed for this instruction. 
llvm-svn: 155000
 2012-04-18 13:02:55 +00:00
Silviu Baranga
2ab693789b Add suport for unpredicatble cases of the cmp, tst, teq and cmnz ARM instructions in the disassembler. 
llvm-svn: 154999
 2012-04-18 12:48:43 +00:00
Kevin Enderby
d64ba28e41 Fix ARM disassembly of VLD2 (single 2-element structure to all lanes) 
instructions with writebacks. And add test a case for all opcodes handed by
DecodeVLD2DupInstruction() in ARMDisassembler.cpp .

llvm-svn: 154884
 2012-04-17 00:49:27 +00:00
Kevin Enderby
64c95fb56a Fixed a case of ARM disassembly getting an assert on a bad encoding 
of a VST instruction.

llvm-svn: 154544
 2012-04-11 22:40:17 +00:00
Kevin Enderby
304e4812bc Fix ARM disassembly of VLD instructions with writebacks.  And add test a case 
for all opcodes handed by DecodeVLDInstruction() in ARMDisassembler.cpp .

llvm-svn: 154459
 2012-04-11 00:25:40 +00:00
Evan Cheng
12bfe1150d Fix a number of problems with ARM fused multiply add/subtract instructions. 
1. The new instruction itinerary entries are not properly described.
2. The asm parser can't handle vfms and vfnms.
3. There were no assembler, disassembler test cases.
4. HasNEON2 has the wrong assembler predicate.
rdar://10139676

llvm-svn: 154456
 2012-04-11 00:13:00 +00:00
Silviu Baranga
f376e00699 Added support for unpredictable ADC/SBC instructions on ARM, and also fixed some corner cases involving the PC register as an operand for these instructions. 
llvm-svn: 154101
 2012-04-05 16:19:29 +00:00
Silviu Baranga
1c2668f700 Added support for handling unpredictable arithmetic instructions on ARM. 
llvm-svn: 154100
 2012-04-05 16:13:15 +00:00
Silviu Baranga
77d372b45e Added fix in TableGen instruction decoder generation. The decoder now breaks for every leaf node. 
llvm-svn: 153874
 2012-04-02 15:20:39 +00:00
Eli Bendersky
3ef88c1833 Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu 
* Removed test/lib/llvm.exp - it is no longer needed 
* Deleted the dg.exp reading code from test/lit.cfg. There are no dg.exp files
  left in the test suite so this code is no longer required. test/lit.cfg is
  now much shorter and clearer 
* Removed a lot of duplicate code in lit.local.cfg files that need access to
  the root configuration, by adding a "root" attribute to the TestingConfig
  object. This attribute is dynamically computed to provide the same
  information as was previously provided by the custom getRoot functions. 
* Documented the config.root attribute in docs/CommandGuide/lit.pod

llvm-svn: 153408
 2012-03-25 09:02:19 +00:00
Silviu Baranga
d197baa066 Added soft fail checks for the disassembler when decoding some corner cases of the STRD, STRH, LDRD, LDRH, LDRSH and LDRSB instructions on ARM. 
llvm-svn: 153252
 2012-03-22 14:14:49 +00:00
Silviu Baranga
7bdfb9e34d Added soft fail cases for the disassembler when decoding LDRSBT, LDRHT or LDRSHT instruction on ARM 
llvm-svn: 153251
 2012-03-22 13:24:43 +00:00
Silviu Baranga
c03971d4b1 Added soft fail cases for the disassembler when decoding MUL instructions on ARM. 
llvm-svn: 153250
 2012-03-22 13:14:39 +00:00
Kevin Enderby
e64335b34a Fix ARM disassembly of VST1 and VST2 instructions with writeback. And add test 
case for all opcodes handed by DecodeVSTInstruction() in ARMDisassembler.cpp .

llvm-svn: 153218
 2012-03-21 20:54:32 +00:00
Silviu Baranga
d20ed770e5 The ARM instructions that have an unpredictable behavior when the pc register operand is given now fail with soft fail. Modified the regression tests to reflect this. 
llvm-svn: 153089
 2012-03-20 15:54:56 +00:00
Kevin Enderby
64d11852dd Fix a bug in the ARM disassembly of the neon VLD2 all lanes instruction. 
llvm-svn: 152127
 2012-03-06 18:33:12 +00:00
Kevin Enderby
26dad6994b Change ARMInstPrinter::printPredicateOperand() so it will not abort if it 
runs into the undefined 15 condition code value.

llvm-svn: 151844
 2012-03-01 22:13:02 +00:00
Eli Bendersky
4afdeeb682 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed. 
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.

llvm-svn: 150664
 2012-02-16 06:28:33 +00:00
James Molloy
85be8f7f88 Teach the MC and disassembler about SoftFail, and hook it up to UNPREDICTABLE on ARM. Wire this to tBLX in order to provide test coverage. 
llvm-svn: 150169
 2012-02-09 10:56:31 +00:00
Jim Grosbach
44829ab9d2 ARM NEON VST2 assembly parsing and encoding. 
Work in progress. Parsing for non-writeback, single spaced register lists
works now. The rest have the representations better factored, but still
need more to be able to parse properly.

llvm-svn: 146579
 2011-12-14 19:35:22 +00:00
Owen Anderson
35f049f1fb Fix an ambiguous decoding where we failed to properly decode VMOVv2f32 and VMOVv4f32. 
llvm-svn: 144683
 2011-11-15 19:55:00 +00:00
Jim Grosbach
4a2f107b04 ARM VLDR/VSTR instructions don't need a size suffix. 
Canonicallize on the non-suffixed form, but continue to accept assembly that
has any correctly sized type suffix.

llvm-svn: 144583
 2011-11-14 23:03:21 +00:00
Benjamin Kramer
89ebc7ab4b Simplify some uses of utohexstr. 
As a side effect hex is printed lowercase instead of uppercase now.

llvm-svn: 144013
 2011-11-07 21:00:59 +00:00
Owen Anderson
ac9fd95057 Fix the issue that r143552 was trying to address the _right_ way. One-register lists are legal on LDM/STM instructions, but we should not print the PUSH/POP aliases when they appear. This fixes round tripping on this instruction. 
llvm-svn: 143557
 2011-11-02 18:03:14 +00:00
Owen Anderson
0d69f6aa51 Fix disassembly of some VST1 instructions. 
llvm-svn: 143507
 2011-11-01 22:18:13 +00:00
Owen Anderson
d7700cb13f More not-crashing NEON disassembly updates for the vld refactoring. 
llvm-svn: 143351
 2011-10-31 17:17:32 +00:00
Owen Anderson
9e033c5b03 Fix illegal disassembly testcase. 
llvm-svn: 143231
 2011-10-28 21:45:09 +00:00
Owen Anderson
3dd6c949a5 Reapply r143202, with a manual decoding hook for SWP. This change inadvertantly exposed a decoding ambiguity between SWP and CPS that the auto-generated decoder can't handle. 
llvm-svn: 143208
 2011-10-28 18:02:13 +00:00
Owen Anderson
f22cd77ceb Add testcase for r143162. 
llvm-svn: 143163
 2011-10-27 22:54:14 +00:00
Owen Anderson
b0e09258e7 Fix a NEON disassembly case that was broken in the recent refactorings. As more of this code gets refactored, a lot of these manual decoding hooks should get smaller and/or go away entirely. 
llvm-svn: 142817
 2011-10-24 18:04:29 +00:00
Owen Anderson
2021ad2133 Revert r142618, r142622, and r142624, which were based on an incorrect reading of the ARMv7 docs. 
llvm-svn: 142626
 2011-10-20 22:23:58 +00:00
Owen Anderson
8067075218 Fix decoding tests for fixed MSR encodings. 
llvm-svn: 142624
 2011-10-20 22:01:48 +00:00
Jim Grosbach
422576b6e8 Thumb2 assembly parsing and encoding for LDC/STC. 
llvm-svn: 141811
 2011-10-12 20:54:17 +00:00
Jim Grosbach
313a74d565 Update test for r141704. 
llvm-svn: 141705
 2011-10-11 20:18:50 +00:00
James Molloy
c4fcff419c Check in a patch that has already been code reviewed by Owen that I'd forgotten to commit. 
Build on previous patches to successfully distinguish between an M-series and A/R-series MSR and MRS instruction. These take different mask names and have a *slightly* different opcode format.

Add decoder and disassembler tests.

Improvement on the previous patch - successfully distinguish between valid v6m and v7m masks (one is a subset of the other). The patch had to be edited slightly to apply to ToT.

llvm-svn: 140696
 2011-09-28 14:21:38 +00:00
Owen Anderson
bfb83aae27 Fix an incorrect decoder test. 
llvm-svn: 140579
 2011-09-26 23:08:34 +00:00
Owen Anderson
f9ff097fdd Fix incorrect disassembly test. 
llvm-svn: 140423
 2011-09-23 22:05:54 +00:00
Owen Anderson
53c6b08ad8 Post-index loads/stores in still need to print the post-indexed immediate, even if it's zero, to distinguish them from non-post-indexed instructions. 
llvm-svn: 140420
 2011-09-23 21:26:40 +00:00
Owen Anderson
071eb7580a Reapply r140412 (Thumb2 reg-reg loads cannot target SP or PC), with invalid testcases updated. 
llvm-svn: 140415
 2011-09-23 21:07:25 +00:00