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2011-10-11Fix disassembling of popcntw. Also remove some code that says it accounts ↵Craig Topper
for 64BIT_REXW_XD not existing, but it does exist. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05Change C++ style comments to C style comments in X86 disassembler. Patch ↵Craig Topper
from Joe Abbey. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04Add support in the disassembler for ignoring the L-bit on certain VEX ↵Craig Topper
instructions. Mark instructions that have this behavior. Fixes PR10676. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Treat VEX.vvvv as a 3-bit field outside of 64-bit mode. Prevents access to ↵Craig Topper
registers xmm8-xmm15 outside 64-bit mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140997 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Fix VEX disassembling to ignore REX.RXBW bits in 32-bit mode.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140993 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-02Special case disassembler handling of REX.B prefix on NOP instruction to ↵Craig Topper
decode as XCHG R8D, EAX instead. Fixes PR10344. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26Fix VEX decoding in i386 mode. Fixes PR11008.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Only disassembler instructions with vvvv != 1111 if the instruction actually ↵Craig Topper
uses the vvvv field to encode an operand. Fixes PR10851. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139591 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04Add support for the VIA PadLock instructions.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15X86 table-generator and disassembler support for the AVXSean Callanan
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127644 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27Silence enum conversion warnings.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126578 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-02Fixed a bug in the disassembler where the mandatory 0x66Sean Callanan
prefix would be misinterpreted in some cases on 32-bit x86 platforms. Thanks to Olivier Meurant for identifying the bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124709 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23Null initialize a few variables flagged byTed Kremenek
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124073 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06Correctly disassemble truncated asm.Rafael Espindola
Patch by Richard Simth. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-23Make the disassembler tables const so they end up in read-only memory.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117206 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-23Remove a define which is never referenced.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22Fixed handling of immediate operand sizes, whichSean Callanan
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117084 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06Eliminated the classification of control registers into %ecr_Sean Callanan
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16add a missing break back, patch by Nico Schmidt!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Fixed a bug where the disassembler would allow an immediateSean Callanan
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100694 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02Fixes to the X86 disassembler. The disassembler will nowSean Callanan
return an error status in all failure cases, printing messages to debugs() only when debugging is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18Try to fix a valgrind error on 32 bit platforms: use %zu instead of %llu to ↵Benjamin Kramer
format a size_t. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Removed the "inline" keyword from the disassembler decoder,Sean Callanan
because the Visual C++ build does not build .c files as C99 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Changed REG_* to MODRM_REG_* to avoid conflictsSean Callanan
with symbols in AuroraUX's global namespace. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91879 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Fix some may-be-uninitialized var warnings.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91878 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Fixed library dependencies between the X86 disassembler andSean Callanan
X86 codegen that were causing circular symbol dependencies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91871 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19#if 0 out X86 disassembler for now, it is breaking the build in multiple places.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91778 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19rename dprintf to dbgpritnf, in order to fix build with glibc (which already ↵Nuno Lopes
defines dprintf in stdio.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91775 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19Use memset instead of bzero, its more portable.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91754 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19Table-driven disassembler for the X86 architecture (16-, 32-, and 64-bit Sean Callanan
incarnations), integrated into the MC framework. The disassembler is table-driven, using a custom TableGen backend to generate hierarchical tables optimized for fast decode. The disassembler consumes MemoryObjects and produces arrays of MCInsts, adhering to the abstract base class MCDisassembler (llvm/MC/MCDisassembler.h). The disassembler is documented in detail in - lib/Target/X86/Disassembler/X86Disassembler.cpp (disassembler runtime) - utils/TableGen/DisassemblerEmitter.cpp (table emitter) You can test the disassembler by running llvm-mc -disassemble for i386 or x86_64 targets. Please let me know if you encounter any problems with it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91749 91177308-0d34-0410-b5e6-96231b3b80d8
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