Commit Graph

22 Commits

Author SHA1 Message Date
Owen Anderson
0491270f99 Get rid of the extraneous GPR operand on so_reg_imm operands, which in turn necessitates a lot of changes to related bits.
llvm-svn: 135722
2011-07-21 23:38:37 +00:00
Johnny Chen
d0e2be39ea Print out a debug message when the reglist fails the sanity check for Thumb Ld/St Multiple.
llvm-svn: 129365
2011-04-12 17:09:04 +00:00
Johnny Chen
74adbddade Trivial comment fix.
llvm-svn: 129288
2011-04-11 18:51:50 +00:00
Kevin Enderby
9377a52c12 Adding support for printing operands symbolically to llvm's public 'C'
disassembler API.  Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
  blx _puts
instead of this:
  blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
  movt r0, :upper16:((_foo-_bar)+1234)

llvm-svn: 129284
2011-04-11 18:08:50 +00:00
Johnny Chen
a6129b4a7f RFE encoding should also specify the "should be" encoding bits.
rdar://problem/9229922 ARM disassembler discrepancy: erroneously accepting RFE

Also LDC/STC instructions are predicated while LDC2/STC2 instructions are not, fixed while
doing regression testings.

llvm-svn: 128859
2011-04-04 23:39:08 +00:00
Chris Lattner
091012d5d5 hopefully fix a problem building on cygwin-1.5
llvm-svn: 113255
2010-09-07 19:50:53 +00:00
Bob Wilson
9664984be8 Add a separate ARM instruction format for Saturate instructions.
(I discovered 2 more copies of the ARM instruction format list, bringing the
total to 4!!  Two of them were already out of sync.  I haven't yet gotten into
the disassembler enough to know the best way to fix this, but something needs
to be done.)  Add support for encoding these instructions.

llvm-svn: 110754
2010-08-11 00:01:18 +00:00
Chris Lattner
cbe9856fce prune #includes a little.
llvm-svn: 108929
2010-07-20 21:17:29 +00:00
Bruno Cardoso Lopes
c2f87b7bb2 Reapply r105521, this time appending "LLU" to 64 bit
immediates to avoid breaking the build.

llvm-svn: 105652
2010-06-08 22:51:23 +00:00
Chris Lattner
fdd2614330 revert r105521, which is breaking the buildbots with stuff like this:
In file included from X86InstrInfo.cpp:16:
X86GenInstrInfo.inc:2789: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2790: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2792: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2793: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2808: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2809: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2816: error: integer constant is too large for 'long' type
X86GenInstrInfo.inc:2817: error: integer constant is too large for 'long' type

llvm-svn: 105524
2010-06-05 04:17:30 +00:00
Bruno Cardoso Lopes
594fa26317 Initial AVX support for some instructions. No patterns matched
yet, only assembly encoding support.

llvm-svn: 105521
2010-06-05 03:53:24 +00:00
Johnny Chen
dd56c40591 Thumb instructions which have reglist operands at the end and predicate operands
before reglist were not properly handled with respect to IT Block.  Fix that by
creating a new method ARMBasicMCBuilder::DoPredicateOperands() used by those
instructions for disassembly.  Add a test case.

llvm-svn: 101974
2010-04-21 01:01:19 +00:00
Johnny Chen
7637827064 Fixed another assert exposed by fuzzing. The utility function getRegisterEnum()
was asserting because the (RegClass, RegNum) combination doesn't make sense from
an encoding point of view.

Since getRegisterEnum() is used all over the place, to change the code to check
for encoding error after each call would not only bloat the code, but also make
it less readable.  An Err flag is added to the ARMBasicMCBuilder where a client
can set a non-zero value to indicate some kind of error condition while building
up the MCInst.  ARMBasicMCBuilder::BuildIt() checks this flag and returns false
if a non-zero value is detected.

llvm-svn: 101290
2010-04-14 21:03:13 +00:00
Johnny Chen
82c3cadad6 Fixed an assert() exposed by fuzzing. Now, instead of assert when an invalid
instruction encoding is encountered, we just return a NULL ARMBasicMCBuilder
instance and the client just returns false to indicate disassembly error.

llvm-svn: 101201
2010-04-14 01:17:37 +00:00
Evan Cheng
492a82e426 Re-apply 100265 but instead disable building of ARM disassembly for now.
llvm-svn: 100379
2010-04-05 01:34:00 +00:00
Evan Cheng
876a5015af Reverting 100265 to try to get buildbots green again. Lots of self-hosting buildbots started complaining since this commit. Also xfail ARM disassembly tests.
llvm-svn: 100378
2010-04-05 01:04:27 +00:00
Johnny Chen
fc8c3b7547 Get rid of the middleman (ARMAlgorithm), which causes more trouble than the
abstraction it brings.  And also get rid of the atexit() handler, it does not
belong in the lib directory. :-)

llvm-svn: 100265
2010-04-03 04:10:56 +00:00
Johnny Chen
58e83eb50d Register ARMAlgorithm::DoCleanup() to be called on exit to free the memory
occuplied by the cached ARMAlgorithm objects.

llvm-svn: 100258
2010-04-03 01:09:47 +00:00
Johnny Chen
a0d74064fe Fix another build warning.
llvm-svn: 100251
2010-04-02 23:43:38 +00:00
Johnny Chen
7b999ea7b7 Second try of initial ARM/Thumb disassembler check-in. It consists of a tablgen
backend (ARMDecoderEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Reviewed by Chris Latter and Bob Wilson.

llvm-svn: 100233
2010-04-02 22:27:38 +00:00
Bob Wilson
1b4e8cc69c --- Reverse-merging r98637 into '.':
U    test/CodeGen/ARM/tls2.ll
U    test/CodeGen/ARM/arm-negative-stride.ll
U    test/CodeGen/ARM/2009-10-30.ll
U    test/CodeGen/ARM/globals.ll
U    test/CodeGen/ARM/str_pre-2.ll
U    test/CodeGen/ARM/ldrd.ll
U    test/CodeGen/ARM/2009-10-27-double-align.ll
U    test/CodeGen/Thumb2/thumb2-strb.ll
U    test/CodeGen/Thumb2/ldr-str-imm12.ll
U    test/CodeGen/Thumb2/thumb2-strh.ll
U    test/CodeGen/Thumb2/thumb2-ldr.ll
U    test/CodeGen/Thumb2/thumb2-str_pre.ll
U    test/CodeGen/Thumb2/thumb2-str.ll
U    test/CodeGen/Thumb2/thumb2-ldrh.ll
U    utils/TableGen/TableGen.cpp
U    utils/TableGen/DisassemblerEmitter.cpp
D    utils/TableGen/RISCDisassemblerEmitter.h
D    utils/TableGen/RISCDisassemblerEmitter.cpp
U    Makefile.rules
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/Makefile
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
D    lib/Target/ARM/Disassembler
U    lib/Target/ARM/ARMInstrFormats.td
U    lib/Target/ARM/ARMAddressingModes.h
U    lib/Target/ARM/Thumb2ITBlockPass.cpp

llvm-svn: 98640
2010-03-16 16:59:47 +00:00
Johnny Chen
3d9327bd06 Initial ARM/Thumb disassembler check-in. It consists of a tablgen backend
(RISCDisassemblerEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98637
2010-03-16 16:36:54 +00:00