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208 Commits

Author SHA1 Message Date
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
Owen Anderson
7b134fe54c Print out immediate offset versions of PC-relative load/store instructions as [pc, #123] rather than simply #123. 
llvm-svn: 140283
 2011-09-21 23:44:46 +00:00
Owen Anderson
4177cfc809 Port over more Thumb2 encoding tests to decoding tests. 
llvm-svn: 140152
 2011-09-20 17:44:48 +00:00
Owen Anderson
b843f3625d Handle STRT (and friends) like LDRT (and friends) for decoding purposes. Port over additional encoding tests to decoding tests. 
llvm-svn: 140032
 2011-09-19 18:07:10 +00:00
Owen Anderson
df512e9961 Add a testcase for another corner-case decoding. 
llvm-svn: 139970
 2011-09-16 23:15:29 +00:00
Owen Anderson
eae0eee720 Fix disassembly of Thumb2 BFI instructions with bit range of [0, 32). 
llvm-svn: 139964
 2011-09-16 22:29:48 +00:00
Owen Anderson
3a487c8c9b Add fixed bits to correctly distinguish Thumb2 SSAT/SSAT16's. 
llvm-svn: 139958
 2011-09-16 22:17:02 +00:00
Owen Anderson
5804085f26 Fix disassembly of Thumb2 LDRSH with a #-0 offset. 
llvm-svn: 139943
 2011-09-16 21:08:33 +00:00
Owen Anderson
ceb2fb9548 Port over more Thumb2 assembly tests to disassembly tests. 
llvm-svn: 139915
 2011-09-16 17:56:04 +00:00
Owen Anderson
8bc7120609 Port over more Thumb2 assembly tests to disassembly tests. 
llvm-svn: 139912
 2011-09-16 17:22:48 +00:00
Owen Anderson
1037a3e60b Make use of Eli's FileCheck sorcery to improve this test. 
llvm-svn: 139645
 2011-09-13 21:37:50 +00:00
Owen Anderson
d0121fe635 Correct disassembly printing of Thumb2 post-incremented LDRD and STRD. 
llvm-svn: 139639
 2011-09-13 20:46:26 +00:00
Owen Anderson
a1a10ed5c6 Thumb2 POP's don't allow the PC as an operand, and PUSH's don't allow the SP either. 
llvm-svn: 139542
 2011-09-12 21:28:46 +00:00
Owen Anderson
05ef2c122d Port more encoding tests to decoding tests, and correct an improper Thumb2 pre-indexed load decoding this uncovered. 
llvm-svn: 139522
 2011-09-12 18:56:30 +00:00
Owen Anderson
9cd21ce8c9 LDM writeback is not allowed if Rn is in the target register list. 
llvm-svn: 139432
 2011-09-09 23:13:33 +00:00
Owen Anderson
dbe77fc5a1 Fix assembly/disassembly of Thumb2 ADR instructions with immediate operands. 
llvm-svn: 139422
 2011-09-09 22:24:36 +00:00
Owen Anderson
d7127e0c27 Soft fail CBZ/CBNZ in the disassembler if they appear inside an IT block. 
llvm-svn: 139328
 2011-09-08 22:42:49 +00:00
Jim Grosbach
9f150bfedf Thumb2 assembly parsing and encoding for LDRD(immediate). 
Refactor operand handling for STRD as well. Tests for that forthcoming.

llvm-svn: 139322
 2011-09-08 22:07:06 +00:00
Owen Anderson
26467730c1 Create Thumb2 versions of STC/LDC, and reenable the relevant tests. 
llvm-svn: 139256
 2011-09-07 21:10:42 +00:00
James Molloy
ac057f13a5 Second of a three-patch series aiming to fix MSR/MRS on Cortex-M. This adds predicate checking to the Disassembler. 
llvm-svn: 139250
 2011-09-07 19:42:28 +00:00
Jim Grosbach
f5f321c4ce Update test for 139243 
llvm-svn: 139244
 2011-09-07 18:40:06 +00:00
Owen Anderson
4106b9fb31 Port more assembler tests over to disassembler tests, and fix a minor logic error that exposed. 
llvm-svn: 139240
 2011-09-07 17:55:19 +00:00
Owen Anderson
23820ebb17 Port more encoding tests over to Thumb2 decoding tests. 
llvm-svn: 139171
 2011-09-06 20:26:34 +00:00
Owen Anderson
adac5b2109 Fix issues with disassembly of IT instructions involving condition codes other the EQ/NE. Discovered by roundtrip testing. 
llvm-svn: 138840
 2011-08-30 22:58:27 +00:00
Owen Anderson
9d3407e7c2 Port Thumb2 assembler tests over to disassembler tests. 
llvm-svn: 138822
 2011-08-30 20:03:11 +00:00
Owen Anderson
fd21da3506 Improve encoding support for BLX with immediat eoperands, and fix a BLX decoding bug this uncovered. 
llvm-svn: 138675
 2011-08-26 23:32:08 +00:00
Owen Anderson
af51fd9868 invalid-LDR_PRE-arm.txt was already passing, but for the wrong reasons. We were failing to specify enough fixed bits of LDR_PRE/LDRB_PRE, resulting in decoding conflicts. Separate them into immediate vs. register versions, allowing us to specify the necessary fixed bits. This in turn results in the test being decoded properly, and being rejected as UNPREDICTABLE rather than a hard failure. 
llvm-svn: 138653
 2011-08-26 20:43:14 +00:00
Owen Anderson
86b11d01eb Support an extension of ARM asm syntax to allow immediate operands to ADR instructions. This is helpful for disassembler testing, and indeed exposed a disassembler bug that is also fixed here. 
llvm-svn: 138635
 2011-08-26 18:09:22 +00:00
Owen Anderson
485eda7687 Add a testcase for r138625. 
llvm-svn: 138626
 2011-08-26 06:45:08 +00:00
Owen Anderson
d387b48b0b Port over additional encoding tests to decoding tests, and fix an operand ordering bug this exposed. 
llvm-svn: 138575
 2011-08-25 18:30:18 +00:00
Owen Anderson
6325690c08 Port over more encoding tests to decoding tests. 
llvm-svn: 138441
 2011-08-24 17:08:34 +00:00
Owen Anderson
3de2d7656d Fix decoding of Thumb2 prefetch instructions, which account for all the remaining Thumb2 decoding failures found by randomized testing so far. 
llvm-svn: 138341
 2011-08-23 17:51:38 +00:00
Owen Anderson
9d5074746f Fix two more instances of mis-matched operand names breaking disassembly. Found by randomized testing. 
llvm-svn: 138337
 2011-08-23 17:37:32 +00:00
Owen Anderson
b97912374e Port more assemble tests over to disassembly tests. 
llvm-svn: 138336
 2011-08-23 17:26:35 +00:00
Owen Anderson
d5b7d73696 t2SMLAD is a four-register instruction, not a three-register one. 
llvm-svn: 138301
 2011-08-22 23:31:45 +00:00
Owen Anderson
c395a07c42 Correct operand naming of t2USAT16 to allow proper decoding. 
llvm-svn: 138300
 2011-08-22 23:27:47 +00:00
Owen Anderson
9e750147fb Match operand naming to allow correct decoding of t2LDRSH_POST. 
llvm-svn: 138298
 2011-08-22 23:22:05 +00:00
Owen Anderson
b400952853 Provide a correct decoder hook for Thumb2 shifted registers. Found by randomized testing. 
llvm-svn: 138292
 2011-08-22 23:10:16 +00:00
Owen Anderson
a2231fad2e Provide operand encoding information for half-precision VCVT instructions. Found by randomized testing. 
llvm-svn: 138273
 2011-08-22 21:34:00 +00:00