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52 Commits

Author SHA1 Message Date
Joerg Sonnenberger 2b86e48b3a Fix typo 
llvm-svn: 166945
 2012-10-29 17:56:15 +00:00
Craig Topper 963305b450 Add a new compression type to ModRM table that detects when the memory modRM byte represent 8 instructions and the reg modRM byte represents up to 64 instructions. Reduces modRM table from 43k entreis to 25k entries. Based on a patch from Manman Ren. 
llvm-svn: 163774
 2012-09-13 05:45:42 +00:00
Roman Divacky 6792380e7b Use const properly so that we dont remove const qualifier from region and MII 
by casting. Found with gcc48.

llvm-svn: 163247
 2012-09-05 21:17:34 +00:00
Richard Smith 228e6d4cf3 Fix integer undefined behavior due to signed left shift overflow in LLVM. 
Reviewed offline by chandlerc.

llvm-svn: 162623
 2012-08-24 23:29:28 +00:00
Craig Topper b8aec08819 Add more indirection to the disassembler tables to reduce amount of space used to store the operand types and encodings. Store only the unique combinations in a separate table and store indices in the instruction table. Saves about 32K of static data. 
llvm-svn: 161101
 2012-08-01 07:39:18 +00:00
Craig Topper 7629d63bc4 Add support for AVX enhanced comparison predicates. Patch from Kay Tiong Khoo. 
llvm-svn: 153935
 2012-04-03 05:20:24 +00:00
Benjamin Kramer adfc73d68f C files in llvm still have to be C89 compliant, remove C++-style comments. 
llvm-svn: 152495
 2012-03-10 15:10:06 +00:00
Kevin Enderby 014e1cde5f Fix the x86 disassembler to at least print the lock prefix if it is the first 
prefix.  Added a FIXME to remind us this still does not work when it is not the
first prefix.

llvm-svn: 152414
 2012-03-09 17:52:49 +00:00
Craig Topper 6491c8020e X86 disassembler support for jcxz, jecxz, and jrcxz. Fixes PR11643. Patch by Kay Tiong Khoo. 
llvm-svn: 151510
 2012-02-27 01:54:29 +00:00
Kevin Enderby 6fbcd8d439 Updated the llvm-mc disassembler C API to support for the X86 target. 
rdar://10873652

As part of this I updated the llvm-mc disassembler C API to always call the
SymbolLookUp call back even if there is no getOpInfo call back.  If there is a
getOpInfo call back that is tried first and then if that gets no information
then the  SymbolLookUp is called.  I also made the code more robust by
memset(3)'ing to zero the LLVMOpInfo1 struct before then setting
SymbolicOp.Value before for the call to getOpInfo.  And also don't use any
values from the  LLVMOpInfo1 struct if getOpInfo returns 0.  And also don't
use any of the ReferenceType or ReferenceName values from SymbolLookUp if it
returns NULL. rdar://10873563 and rdar://10873683

For the X86 target also fixed bugs so the annotations get printed. 

Also fixed a few places in the ARM target that was not producing symbolic
operands for some instructions.  rdar://10878166

llvm-svn: 151267
 2012-02-23 18:18:17 +00:00
Ahmed Charles 636a3d618c Remove dead code. Improve llvm_unreachable text. Simplify some control flow. 
llvm-svn: 150918
 2012-02-19 11:37:01 +00:00
Jia Liu b22310fda6 Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore. 
llvm-svn: 150878
 2012-02-18 12:03:15 +00:00
Benjamin Kramer 915e3d9568 Don't mix declarations and code. 
llvm-svn: 150305
 2012-02-11 16:01:02 +00:00
Benjamin Kramer 478e8de8ef Reuse the enum names from X86Desc in the X86Disassembler. 
This requires some gymnastics to make it available for C code. Remove the names
from the disassembler tables, making them relocation free.

llvm-svn: 150303
 2012-02-11 14:50:54 +00:00
Craig Topper a0cd970b81 More tweaks to get the size of the X86 disassembler tables down. 
llvm-svn: 150167
 2012-02-09 08:58:07 +00:00
Craig Topper 487e744f66 Flatten some of the arrays in the X86 disassembler tables to reduce space needed to store pointers on 64-bit hosts and reduce relocations needed at startup. Part of PR11953. 
llvm-svn: 150161
 2012-02-09 07:45:30 +00:00
Duncan Sands ae22c60f90 Persuade GCC that there is nothing worth warning about here (there isn't). 
llvm-svn: 149834
 2012-02-05 14:20:11 +00:00
David Blaikie edbb58c577 Remove unnecessary default cases in switches that cover all enum values. 
llvm-svn: 147855
 2012-01-10 16:47:17 +00:00
Benjamin Kramer 9c48f26341 Silence warnings of a mysterious compiler that still defaults to C89. 
llvm-svn: 147553
 2012-01-04 22:06:45 +00:00
Benjamin Kramer 47aecca51a X86Disassembler: Fix undefined behavior found by GCC 4.6 
llvm-svn: 147404
 2012-01-01 17:55:36 +00:00
Craig Topper 2ba766ae84 Add disassembler support for VPERMIL2PD and VPERMIL2PS. 
llvm-svn: 147368
 2011-12-30 06:23:39 +00:00
Craig Topper f01f1b5cb9 More AVX2 instructions and their intrinsics. 
llvm-svn: 143895
 2011-11-06 23:04:08 +00:00
Craig Topper a697852386 Fix disassembling of popcntw. Also remove some code that says it accounts for 64BIT_REXW_XD not existing, but it does exist. 
llvm-svn: 141642
 2011-10-11 04:34:23 +00:00
Craig Topper b58a9665bd Change C++ style comments to C style comments in X86 disassembler. Patch from Joe Abbey. 
llvm-svn: 141162
 2011-10-05 03:29:32 +00:00
Craig Topper f18c896337 Add support in the disassembler for ignoring the L-bit on certain VEX instructions. Mark instructions that have this behavior. Fixes PR10676. 
llvm-svn: 141065
 2011-10-04 06:30:42 +00:00
Craig Topper 0d0be47d03 Treat VEX.vvvv as a 3-bit field outside of 64-bit mode. Prevents access to registers xmm8-xmm15 outside 64-bit mode. 
llvm-svn: 140997
 2011-10-03 08:14:29 +00:00
Craig Topper 31854ba017 Fix VEX disassembling to ignore REX.RXBW bits in 32-bit mode. 
llvm-svn: 140993
 2011-10-03 07:51:09 +00:00
Craig Topper 21c33657d6 Special case disassembler handling of REX.B prefix on NOP instruction to decode as XCHG R8D, EAX instead. Fixes PR10344. 
llvm-svn: 140971
 2011-10-02 16:56:09 +00:00
Craig Topper 45faba98b4 Fix VEX decoding in i386 mode. Fixes PR11008. 
llvm-svn: 140515
 2011-09-26 05:12:43 +00:00
Craig Topper 8dd7bbcc80 Only disassembler instructions with vvvv != 1111 if the instruction actually uses the vvvv field to encode an operand. Fixes PR10851. 
llvm-svn: 139591
 2011-09-13 07:37:44 +00:00
Joerg Sonnenberger fc4789da4a Add support for the VIA PadLock instructions. 
llvm-svn: 128826
 2011-04-04 16:58:13 +00:00
Sean Callanan c3fd523731 X86 table-generator and disassembler support for the AVX 
instruction set.  This code adds support for the VEX prefix
and for the YMM registers accessible on AVX-enabled
architectures.  Instruction table support that enables AVX
instructions for the disassembler is in an upcoming patch.

llvm-svn: 127644
 2011-03-15 01:23:15 +00:00
Benjamin Kramer 25bddae404 Silence enum conversion warnings. 
llvm-svn: 126578
 2011-02-27 18:13:53 +00:00
Sean Callanan 26fc7858db Fixed a bug in the disassembler where the mandatory 0x66 
prefix would be misinterpreted in some cases on 32-bit
x86 platforms.  Thanks to Olivier Meurant for identifying
the bug.

llvm-svn: 124709
 2011-02-02 01:09:02 +00:00
Ted Kremenek 3c4408ceb6 Null initialize a few variables flagged by 
clang's -Wuninitialized-experimental warning.
While these don't look like real bugs, clang's
-Wuninitialized-experimental analysis is stricter
than GCC's, and these fixes have the benefit
of being general nice cleanups.

llvm-svn: 124073
 2011-01-23 17:05:06 +00:00
Rafael Espindola 9f9a10691a Correctly disassemble truncated asm. 
Patch by Richard Simth.

llvm-svn: 122962
 2011-01-06 16:48:42 +00:00
Benjamin Kramer de0a4fbf3b Make the disassembler tables const so they end up in read-only memory. 
llvm-svn: 117206
 2010-10-23 09:10:44 +00:00
Chandler Carruth 9873c9039e Remove a define which is never referenced. 
llvm-svn: 117202
 2010-10-23 08:25:16 +00:00
Sean Callanan 9f6c622f88 Fixed handling of immediate operand sizes, which 
weren't properly reflecting the OperandSize attribute
of the instruction leading to improper decoding of
certain instructions with the 66H prefix.  Also added
a test case for this.

llvm-svn: 117084
 2010-10-22 01:24:11 +00:00
Sean Callanan e7e1cf9fbd Eliminated the classification of control registers into %ecr_ 
and %rcr_, leaving just %cr_ which is what people expect.
Updated the disassembler to support this unified register set.
Added a testcase to verify that the registers continue to be
decoded correctly.

llvm-svn: 103196
 2010-05-06 20:59:00 +00:00
Chris Lattner d4758fc393 add a missing break back, patch by Nico Schmidt! 
llvm-svn: 101538
 2010-04-16 21:15:15 +00:00
Sean Callanan 1efe661b46 Fixed a bug where the disassembler would allow an immediate 
argument that had to be between 0 and 7 to have any value,
firing an assert later in the AsmPrinter.  Now, the
disassembler rejects instructions with out-of-range values
for that immediate.

llvm-svn: 100694
 2010-04-07 21:42:19 +00:00
Sean Callanan 010b373cf3 Fixes to the X86 disassembler. The disassembler will now 
return an error status in all failure cases, printing
messages to debugs() only when debugging is enabled.

llvm-svn: 100229
 2010-04-02 21:23:51 +00:00
Benjamin Kramer 4f67227625 Try to fix a valgrind error on 32 bit platforms: use %zu instead of %llu to format a size_t. 
llvm-svn: 98819
 2010-03-18 12:18:36 +00:00
Sean Callanan 588785c781 Removed the "inline" keyword from the disassembler decoder, 
because the Visual C++ build does not build .c files as C99

llvm-svn: 91935
 2009-12-22 22:51:40 +00:00
Sean Callanan 2f9443f422 Changed REG_* to MODRM_REG_* to avoid conflicts 
with symbols in AuroraUX's global namespace.

llvm-svn: 91879
 2009-12-22 02:07:42 +00:00
Daniel Dunbar 8b532de418 Fix some may-be-uninitialized var warnings. 
llvm-svn: 91878
 2009-12-22 01:41:37 +00:00
Sean Callanan 5c8f4cd396 Fixed library dependencies between the X86 disassembler and 
X86 codegen that were causing circular symbol dependencies.

llvm-svn: 91871
 2009-12-22 01:11:26 +00:00
Daniel Dunbar 4750efc28a #if 0 out X86 disassembler for now, it is breaking the build in multiple places. 
llvm-svn: 91778
 2009-12-19 17:11:53 +00:00
Nuno Lopes 3ed6d6003c rename dprintf to dbgpritnf, in order to fix build with glibc (which already defines dprintf in stdio.h 
llvm-svn: 91775
 2009-12-19 12:07:00 +00:00