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326082e0b2
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54 Commits

Author SHA1 Message Date
Johnny Chen
326082e0b2 Add a test case for thumb stc2 instruction. 
llvm-svn: 128517
 2011-03-30 01:02:06 +00:00
Johnny Chen
28a32ef2d7 Add a test case for MSRi. 
llvm-svn: 128494
 2011-03-29 21:52:02 +00:00
Johnny Chen
3c4cb78640 Add a thumb test file for printf (iOS 4.3). 
llvm-svn: 128487
 2011-03-29 21:09:30 +00:00
Johnny Chen
ab342ac374 A8.6.188 STC, STC2 
The STC_OPTION and STC2_OPTION instructions should have their coprocessor option enclosed in {}.

rdar://problem/9200661

llvm-svn: 128478
 2011-03-29 19:49:38 +00:00
Johnny Chen
9a61664869 Rename invalid-VLDMSDB-arm.txt to be invalid-VLDMSDB_UPD-arm.txt. 
llvm-svn: 128477
 2011-03-29 19:10:06 +00:00
Johnny Chen
1cd323de0a Add and modify some tests. 
llvm-svn: 128476
 2011-03-29 19:08:52 +00:00
Owen Anderson
d73041e884 Get rid of the non-writeback versions VLDMDB and VSTMDB, which don't actually exist. 
llvm-svn: 128461
 2011-03-29 16:45:53 +00:00
Johnny Chen
8b921cebc6 Fix ARM disassembly for PLD/PLDW/PLI which suffers from code rot and add some test cases. 
Add comments to ThumbDisassemblerCore.h for recent change made for t2PLD disassembly.

llvm-svn: 128417
 2011-03-28 18:41:58 +00:00
Johnny Chen
61713b9c16 Fixed the t2PLD and friends disassembly and add two test cases. 
llvm-svn: 128322
 2011-03-26 01:32:48 +00:00
Johnny Chen
7238c61ff7 Add test for A8.6.246 UMULL to both arm-tests.txt amd thumb-tests.txt. 
llvm-svn: 128306
 2011-03-25 23:02:58 +00:00
Johnny Chen
4c59e0a556 Add two test cases t2SMLABT and t2SMMULR for DisassembleThumb2Mul(). 
llvm-svn: 128305
 2011-03-25 22:43:28 +00:00
Johnny Chen
75c4627aea Fix DisassembleThumb2DPReg()'s handling of RegClass. Cannot hardcode GPRRegClassID. 
Also add some test cases.

rdar://problem/9189829

llvm-svn: 128304
 2011-03-25 22:19:07 +00:00
Johnny Chen
5b840e19ef DisassembleThumb2LdSt() did not handle t2LDRs correctly with respect to RegClass. Add two test cases. 
rdar://problem/9182892

llvm-svn: 128299
 2011-03-25 19:35:37 +00:00
Johnny Chen
f16635a8f0 A8.6.226 TBB, TBH: 
Add two test cases.

llvm-svn: 128295
 2011-03-25 18:40:21 +00:00
Johnny Chen
c69c7b19ae Modify DisassembleThumb2LdStEx() to be more robust/correct in light of recent change to 
t2LDREX/t2STREX instructions.  Add two test cases.

llvm-svn: 128293
 2011-03-25 18:29:49 +00:00
Johnny Chen
f19366e37b Instruction formats of SWP/SWPB were changed from LdStExFrm to MiscFrm. Modify the disassembler to handle that. 
rdar://problem/9184053

llvm-svn: 128285
 2011-03-25 17:31:16 +00:00
Johnny Chen
583b7cb25e Also need to handle invalid imod values for CPS2p. 
rdar://problem/9186136

llvm-svn: 128283
 2011-03-25 17:03:12 +00:00
Johnny Chen
1f29c2775d Modify the wrong logic in the assert of DisassembleThumb2LdStDual() (the register classes were changed), 
modify the comment to be up-to-date, and add a test case for A8.6.66 LDRD (immediate) Encoding T1.

llvm-svn: 128252
 2011-03-25 01:09:48 +00:00
Johnny Chen
a4f73530a5 delegate the disassembly of t2ADR to the more generic t2ADDri12/t2SUBri12 instructions, and add a test case for that. 
llvm-svn: 128249
 2011-03-25 00:17:42 +00:00
Johnny Chen
4a55a733b8 The opcode names ("tLDM", "tLDM_UPD") used for conflict resolution have been stale since 
the change to ("tLDMIA", "tLDMIA_UPD").  Update the conflict resolution code and add
test cases for that.

llvm-svn: 128247
 2011-03-24 23:42:31 +00:00
Johnny Chen
6345e6a882 The ARM disassembler was confused with the 16-bit tSTMIA instruction. 
According to A8.6.189 STM/STMIA/STMEA (Encoding T1), there's only tSTMIA_UPD available.
Ignore tSTMIA for the decoder emitter and add a test case for that.

llvm-svn: 128246
 2011-03-24 23:21:14 +00:00
Johnny Chen
9672fe0126 Handle the added VBICiv*i* NEON instructions, too. 
llvm-svn: 128243
 2011-03-24 22:04:39 +00:00
Johnny Chen
1fc160fa19 T2 Load/Store Multiple: 
These instructions were changed to not embed the addressing mode within the MC instructions
We also need to update the corresponding assert stmt.  Also add a test case.

llvm-svn: 128240
 2011-03-24 21:36:56 +00:00
Benjamin Kramer
a9c4afdeec Plug a leak in the arm disassembler and put the tests back. 
llvm-svn: 128238
 2011-03-24 21:14:28 +00:00
Johnny Chen
ef99d9b9eb Remove these two test files as they cause llvm-i686-linux-vg_leak build to fail 'test-llvm'. 
These two are test cases which should result in 'invalid instruction encoding' from running llvm-mc -disassemble.

llvm-svn: 128235
 2011-03-24 20:56:23 +00:00
Johnny Chen
ae5d27987a ADR was added with the wrong encoding for inst{24-21}, and the ARM decoder was fooled. 
Set the encoding bits to {0,?,?,0}, not 0.  Plus delegate the disassembly of ADR to
the more generic ADDri/SUBri instructions, and add a test case for that.

llvm-svn: 128234
 2011-03-24 20:42:48 +00:00
Johnny Chen
f6655e82b3 The r118201 added support for VORR (immediate). Update ARMDisassemblerCore.cpp to disassemble the 
VORRiv*i* instructions properly within the DisassembleN1RegModImmFrm() function.  Add a test case.

llvm-svn: 128226
 2011-03-24 18:40:38 +00:00
Johnny Chen
154393018f Add comments to the handling of opcode CPS3p to reject invalid instruction encoding, 
a test case of invalid CPS3p encoding and one for invalid VLDMSDB due to regs out of range.

llvm-svn: 128220
 2011-03-24 17:04:22 +00:00
Johnny Chen
404fb6c07f Load/Store Multiple: 
These instructions were changed to not embed the addressing mode within the MC instructions
We also need to update the corresponding assert stmt.  Also add two test cases.

llvm-svn: 128191
 2011-03-24 01:40:42 +00:00
Johnny Chen
0d55ce3734 STRT and STRBT was incorrectly tagged as IndexModeNone during the refactorings (r119821). 
We now tag them as IndexModePost.

llvm-svn: 128189
 2011-03-24 01:07:26 +00:00
Johnny Chen
f8507c96f1 The r128103 fix to cope with the removal of addressing modes from the MC instructions 
were incomplete.  The assert stmt needs to be updated and the operand index incrment is wrong.
Fix the bad logic and add some sanity checking to detect bad instruction encoding;
and add a test case.

llvm-svn: 128186
 2011-03-24 00:28:38 +00:00
Johnny Chen
b9309ecef1 Add disassembly test cases for: 
A8.6.292 VCMPE

llvm-svn: 128120
 2011-03-22 23:08:56 +00:00
Johnny Chen
beb7e880a2 LDRT and LDRBT was incorrectly tagged as IndexModeNone during the refactorings (r119821). 
We now tag them as IndexModePost.

This fixed http://llvm.org/bugs/show_bug.cgi?id=9530.

llvm-svn: 128113
 2011-03-22 22:28:49 +00:00
Johnny Chen
a31ae5ca74 Add one more test case for VFP Load/Store Multiple (vpop). 
llvm-svn: 128106
 2011-03-22 20:21:08 +00:00
Johnny Chen
90908a8eeb A8.6.399 VSTM: 
VFP Load/Store Multiple Instructions used to embed the IA/DB addressing mode within the
MC instruction; that has been changed so that now, for example, VSTMDDB_UPD and VSTMDIA_UPD
are two instructions.  Update the ARMDisassemblerCore.cpp's DisassembleVFPLdStMulFrm()
to reflect the change.

Also add a test case.

llvm-svn: 128103
 2011-03-22 20:00:10 +00:00
Johnny Chen
3520263009 Fixed an assert by the ARM disassembler for LDRD_PRE/POST. 
The relevant instruction table entries were changed sometime ago to no longer take
<Rt2> as an operand.  Modify ARMDisassemblerCore.cpp to accomodate the change and
add a test case.

llvm-svn: 127935
 2011-03-19 01:16:20 +00:00
Johnny Chen
14f091b6ab The disassembler for Thumb was wrongly adding 4 to the computed imm32 offset. 
Remove the offending logic and update the test cases.

llvm-svn: 127843
 2011-03-18 00:38:03 +00:00
Johnny Chen
41abb5b0f7 It used to be that t_addrmode_s4 was used for both: 
o A8.6.195 STR (register) -- Encoding T1
o A8.6.193 STR (immediate, Thumb) -- Encoding T1

It has been changed so that now they use different addressing modes
and thus different MC representation (Operand Infos).  Modify the
disassembler to reflect the change, and add relevant tests.

llvm-svn: 127833
 2011-03-17 22:04:05 +00:00
Johnny Chen
e88573849d There were two issues fixed: 
1. The ARM Darwin *r9 call instructions were pseudo-ized recently.
   Modify the ARMDisassemblerCore.cpp file to accomodate the change.

2. The disassembler was unnecessarily adding 8 to the sign-extended imm24:

   imm32 = SignExtend(imm24:'00', 32); // A8.6.23 BL, BLX (immediate)
                                       // Encoding A1

   It has no business doing such.  Removed the offending logic.

Add test cases to arm-tests.txt.

llvm-svn: 127707
 2011-03-15 22:27:33 +00:00
Johnny Chen
a86399b8e6 Fixed an ARM disassembler bug where it does not handle STRi12 correctly because an extra 
register operand was erroneously added.  Remove an incorrect assert which triggers the bug.

rdar://problem/9131529

llvm-svn: 127642
 2011-03-15 01:13:17 +00:00
Johnny Chen
6bf5d7a170 LLVM combines the offset mode of A8.6.199 A1 & A2 into STRBT. 
The insufficient encoding information of the combined instruction confuses the decoder wrt
UQADD16.  Add extra logic to recover from that.

Fixed an assert reported by Sean Callanan

llvm-svn: 127354
 2011-03-09 20:01:14 +00:00
Bob Wilson
e24bee9ce8 TableGen should not ignore BX instructions for the ARM disassembler. pr9368. 
llvm-svn: 126931
 2011-03-03 07:19:52 +00:00
Bob Wilson
42f80596ca pr9367: Add missing predicated BLX instructions. 
Patch by Jyun-Yan You, with some minor adjustments and a testcase from me.

llvm-svn: 126915
 2011-03-03 01:41:01 +00:00
Kevin Enderby
58cc960338 Fixes an assertion failure while disassembling ARM rsbs reg/reg form. 
Patch by Ted Kremenek!

llvm-svn: 126895
 2011-03-02 23:08:33 +00:00
Kevin Enderby
a1c2ea4ba0 Fix the arm's disassembler for blx that was building an MCInst without the 
needed two predicate operands before the imm operand.

llvm-svn: 126662
 2011-02-28 18:46:31 +00:00
Bruno Cardoso Lopes
ad05904e0b Add assembly parsing support for "msr" and also fix its encoding. Also add 
testcases for the disassembler to make sure it still works for "msr".

llvm-svn: 125948
 2011-02-18 19:45:59 +00:00
Bruno Cardoso Lopes
e65a98b127 Fix encoding and add parsing support for the arm/thumb CPS instruction: 
- Add custom operand matching for imod and iflags.
- Rename SplitMnemonicAndCC to SplitMnemonic since it splits more than CC
  from mnemonic.
- While adding ".w" as an operand, don't change "Head" to avoid passing the
  wrong mnemonic to ParseOperand.
- Add asm parser tests.
- Add disassembler tests just to make sure it can catch all cps versions.

llvm-svn: 125489
 2011-02-14 13:09:44 +00:00
Owen Anderson
899a6d74bf Revert both r121082 (which broke a bunch of constant pool stuff) and r125074 (which worked around it). This should get us back to the old, correct behavior, though it will make the integrated assembler unhappy for the time being. 
llvm-svn: 125127
 2011-02-08 22:39:40 +00:00
Bob Wilson
e7ac2389b2 PR9030: Fix disassembly of ARM "mov pc, lr" instruction. 
Patch by Jyun-Yan You.

llvm-svn: 124492
 2011-01-28 17:50:30 +00:00
Owen Anderson
4f5dac3541 As far as I can tell, unified syntax uses c0-c15 instead of cr0-cr15 for mcr and friends. 
llvm-svn: 123407
 2011-01-13 22:38:16 +00:00