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225 Commits

Author SHA1 Message Date
Owen Anderson
39950595f7 Port more encoding tests over to Thumb2 decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139171 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 20:26:34 +00:00
Owen Anderson
eaca928a37 Fix issues with disassembly of IT instructions involving condition codes other the EQ/NE. Discovered by roundtrip testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138840 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 22:58:27 +00:00
Owen Anderson
3318d9c27d Port Thumb2 assembler tests over to disassembler tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138822 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 20:03:11 +00:00
Owen Anderson
f1eab597b2 Improve encoding support for BLX with immediat eoperands, and fix a BLX decoding bug this uncovered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138675 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 23:32:08 +00:00
Owen Anderson
9ab0f25fc1 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138653 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 20:43:14 +00:00
Owen Anderson
96425c8464 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138635 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 18:09:22 +00:00
Owen Anderson
5a18f20dab Add a testcase for r138625. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138626 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 06:45:08 +00:00
Owen Anderson
99906830e8 Port over additional encoding tests to decoding tests, and fix an operand ordering bug this exposed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 18:30:18 +00:00
Owen Anderson
ddaa513fce Port over more encoding tests to decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138441 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 17:08:34 +00:00
Owen Anderson
82265a2c72 Fix decoding of Thumb2 prefetch instructions, which account for all the remaining Thumb2 decoding failures found by randomized testing so far. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138341 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:51:38 +00:00
Owen Anderson
e732cb0043 Fix two more instances of mis-matched operand names breaking disassembly. Found by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138337 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:37:32 +00:00
Owen Anderson
b4ff9698bd Port more assemble tests over to disassembly tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138336 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:26:35 +00:00
Owen Anderson
c6788c83b4 t2SMLAD is a four-register instruction, not a three-register one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138301 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:31:45 +00:00
Owen Anderson
22d35086fe Correct operand naming of t2USAT16 to allow proper decoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138300 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:27:47 +00:00
Owen Anderson
2379fc235f Match operand naming to allow correct decoding of t2LDRSH_POST. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138298 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:22:05 +00:00
Owen Anderson
2c9f83533b Provide a correct decoder hook for Thumb2 shifted registers. Found by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138292 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:10:16 +00:00
Owen Anderson
838130e3b9 Provide operand encoding information for half-precision VCVT instructions. Found by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138273 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 21:34:00 +00:00
Owen Anderson
357ec6850b Fix decoding of VMOVSRR and VMOVRRS, which account for the overwhelming majority of decoder crashes detected by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138269 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 20:27:12 +00:00
Owen Anderson
2cbf210450 Fix another batch of VLD/VST decoding crashes discovered by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138255 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:42:13 +00:00
Owen Anderson
f1c8e3e70e Correct writeback handling of duplicating VLD instructions. Discovered by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138251 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:22:06 +00:00
Owen Anderson
88b7ccc7f0 Port another swathe of Thumb1 encoding tests over to decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138250 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:05:49 +00:00
Owen Anderson
b113ec55e8 Fix an incorrect shift when decoding SP-relative stores in Thumb1-mode. Add more tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138246 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 17:56:58 +00:00
Owen Anderson
78affc9ea1 STC2L_POST and STC2L_POST should be handled the same as STCL_POST/LDC_POST for the purposes of decoding all operands except the predicate. 
Found by randomized testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138003 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:47:44 +00:00
Owen Anderson
846dd95f87 Fix the decoding of RFE instruction. RFEs have the load bit set, while SRSs have it unset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138000 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:31:17 +00:00
Owen Anderson
14090bf263 Improve handling of failure and unpredictable cases for CPS, STR, and SMLA instructions. 
Fixes a large class of disassembler crashes found by randomized testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137995 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:11:02 +00:00
Jim Grosbach
93b3eff623 Thumb assembly parsing and encoding for LDM instruction. 
Fix base register type and canonicallize to the "ldm" spelling rather than
"ldmia." Add diagnostics for incorrect writeback token and out-of-range
registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 21:50:53 +00:00
Owen Anderson
847a7ad800 More Thumb1 decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137974 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 20:05:06 +00:00
James Molloy
dbe46744c5 Test commit; adding test for invalid LDRD which was part of the patch for r137647 but seemingly didn't get svn add'ed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137960 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 18:03:02 +00:00
Owen Anderson
7cf6d7a083 Port over BL/BLX to disassembly tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137954 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 17:43:52 +00:00
Owen Anderson
3230e9537d Port new Thumb1 encoding tests over to decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137902 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 23:37:33 +00:00
Owen Anderson
4c81cf5dfc Start building a Thumb1 decoding test file based on the Thumb1 parsing/encoding test file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137840 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 18:21:36 +00:00
Owen Anderson
83e3f67fb6 Allow the MCDisassembler to return a "soft fail" status code, indicating an instruction that is disassemblable, but invalid. Only used for ARM UNPREDICTABLE instructions at the moment. 
Patch by James Molloy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137830 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 17:44:15 +00:00
Owen Anderson
a9c989d55a Add a test file for Thumb2 NEON. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137687 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:42:20 +00:00
Owen Anderson
c4bda5633a Add some more comprehensive VFP decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137657 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:29:01 +00:00
Owen Anderson
c537f3be0c Enforce the constraint that Rt must be even on LDRD/STRD instructions in ARM mode. Update tests to reflect this fact. 
Patch by James Molloy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137647 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:51:32 +00:00
Owen Anderson
95d01b8898 Add a test for Thumb1 LDRSH decoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137645 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:15:43 +00:00
Owen Anderson
bd37b721c8 Add testcase for STRH. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137644 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:12:03 +00:00
Owen Anderson
5df7ef6cdb Fix incorrect encoding of UMAAL and friends. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137641 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:08:25 +00:00
Owen Anderson
305e046e53 Fix decoding LDRSB and LDRSH in Thumb1 mode. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137636 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 19:00:06 +00:00
Owen Anderson
7a2e1770ea Fix problems decoding the to/from-lane NEON memory instructions, and add a comprehensive NEON decoding testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137635 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:44:44 +00:00
Owen Anderson
0d09499cf3 Fix some remaining issues with decoding ARM-mode memory instructions, and add another batch of tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137502 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 20:36:11 +00:00
Owen Anderson
a211c2c7e9 Port over the basic ARM encodings test file to a decoding test file. Greatly increases our test coverage of basic ARM-mode instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137495 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 19:42:45 +00:00
Owen Anderson
508e1d3db5 Fix decoding for indexed STRB and LDRB. Fixes <rdar://problem/9926161>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137347 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:47:56 +00:00
Owen Anderson
9fe72bcd37 Improve operand validation for Thumb2 addressing modes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137344 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:40:40 +00:00
Owen Anderson
26d2f0ac91 Continue to tighten decoding by performing more operand validation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137340 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:21:46 +00:00
Owen Anderson
71156a6e00 Tighten decoding of addrmode2 instructions to reject more UNPREDICTABLE cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137325 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 19:00:18 +00:00
Owen Anderson
2b7b238e84 Tighten operand decoding of addrmode2 instruction. The offset register cannot be PC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137323 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:55:42 +00:00
Owen Anderson
3dac0bec7e Correct immediate range for shifter operands. Patch by James Molloy, with additional encoding fixes added by me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137322 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:41:59 +00:00
Owen Anderson
ae0bc5deaa Improve error checking in the new ARM disassembler. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137320 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:24:51 +00:00
Owen Anderson
8533ebad6f Add initial support for decoding NEON instructions in Thumb2 mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137236 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 19:01:10 +00:00