Commit Graph

66 Commits

Author SHA1 Message Date
Johnny Chen 1de8cc6f95 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 f949d8e13d 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 122a6304ef Add disassembly test cases for:
A8.6.292 VCMPE

llvm-svn: 128120
2011-03-22 23:08:56 +00:00
Johnny Chen 30350cdbdf 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 0c5f670fe7 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 a4c3154fca 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 7a2873dfbe 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 9363d41f14 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 6f6d739b6e TableGen should not ignore BX instructions for the ARM disassembler. pr9368.
llvm-svn: 126931
2011-03-03 07:19:52 +00:00
Bob Wilson ec84568904 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 b8b6041734 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
Bruno Cardoso Lopes 9cd43977c3 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 90d1dfe4c6 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
Bob Wilson 775eec2280 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 ec47597ecd 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
Dale Johannesen 2cd8b08207 Segregate tests by target.
llvm-svn: 119050
2010-11-14 18:14:32 +00:00