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path: root/utils/TableGen/X86DisassemblerTables.cpp
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* Add a new compression type to ModRM table that detects when the memory modRM ↵Craig Topper2012-09-13
| | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163774 91177308-0d34-0410-b5e6-96231b3b80d8
* Change unsigned to a uint16_t in static disassembler tables to reduce the ↵Craig Topper2012-09-11
| | | | | | table size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163594 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more indirection to the disassembler tables to reduce amount of space ↵Craig Topper2012-08-01
| | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161101 91177308-0d34-0410-b5e6-96231b3b80d8
* Use uint8_t to store the InstructionContext table. Saves 768 bytes of static ↵Craig Topper2012-07-31
| | | | | | data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161034 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up. Move for loop index declarations into for statements. Use unsigned ↵Craig Topper2012-07-31
| | | | | | instead of uint16_t for loop indices. Use unsigned instead of uint32_t for arguments to raw_ostream.indent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161033 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up function argument formatting.Craig Topper2012-07-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161032 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespaceCraig Topper2012-07-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161030 91177308-0d34-0410-b5e6-96231b3b80d8
* Use uint8_t instead of enums to store values in X86 disassembler table. ↵Craig Topper2012-03-04
| | | | | | Shaves 150k off the size of X86DisassemblerDecoder.o git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151995 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 disassembler support for jcxz, jecxz, and jrcxz. Fixes PR11643. Patch by ↵Craig Topper2012-02-27
| | | | | | Kay Tiong Khoo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151510 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code. Improve llvm_unreachable text. Simplify some control flow.Ahmed Charles2012-02-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150918 91177308-0d34-0410-b5e6-96231b3b80d8
* Reuse the enum names from X86Desc in the X86Disassembler.Benjamin Kramer2012-02-11
| | | | | | | This requires some gymnastics to make it available for C code. Remove the names from the disassembler tables, making them relocation free. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150303 91177308-0d34-0410-b5e6-96231b3b80d8
* More tweaks to get the size of the X86 disassembler tables down.Craig Topper2012-02-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150167 91177308-0d34-0410-b5e6-96231b3b80d8
* Flatten some of the arrays in the X86 disassembler tables to reduce space ↵Craig Topper2012-02-09
| | | | | | needed to store pointers on 64-bit hosts and reduce relocations needed at startup. Part of PR11953. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150161 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unreachable code. (replace with llvm_unreachable to help GCC where ↵David Blaikie2012-01-17
| | | | | | necessary) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148284 91177308-0d34-0410-b5e6-96231b3b80d8
* More AVX2 instructions and their intrinsics.Craig Topper2011-11-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143895 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix disassembling of popcntw. Also remove some code that says it accounts ↵Craig Topper2011-10-11
| | | | | | 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
* Revert part of r141274. Only need to change encoding for xchg %eax, %eax in ↵Craig Topper2011-10-07
| | | | | | 64-bit mode. This is because in 64-bit mode xchg %eax, %eax implies zeroing the upper 32-bits of RAX which makes it not a NOP. In 32-bit mode using NOP encoding is fine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141353 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support in the disassembler for ignoring the L-bit on certain VEX ↵Craig Topper2011-10-04
| | | | | | 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
* Fix typo in r140954.Craig Topper2011-10-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140962 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix disassembler handling of CRC32 which is an odd instruction that uses ↵Craig Topper2011-10-01
| | | | | | 0xf2 as an opcode extension and allows the opsize prefix. This necessitated adding IC_XD_OPSIZE and IC_64BIT_XD_OPSIZE contexts. Unfortunately, this increases the size of the disassembler tables. Fixes PR10702. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140954 91177308-0d34-0410-b5e6-96231b3b80d8
* Move TableGen's parser and entry point into a libraryPeter Collingbourne2011-10-01
| | | | | | This is the first step towards splitting LLVM and Clang's tblgen executables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140951 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't allow 32-bit only instructions to be disassembled in 64-bit mode. ↵Craig Topper2011-09-23
| | | | | | Fixes part of PR10700. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140370 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix disassembling of PAUSE instruction. Fixes PR10900. Also fixed NOP ↵Craig Topper2011-09-11
| | | | | | disassembling to ignore OpSize and REX.W. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139484 91177308-0d34-0410-b5e6-96231b3b80d8
* Make IC_VEX* not inherit from IC_*. Prevents instructions with no VEX form ↵Craig Topper2011-09-02
| | | | | | from disassembling to their non-VEX form. Also prevents weak filter collisons that were keeping valid VEX instructions from decoding properly. Make VEX_L* not inherit from VEX_* because the VEX.L bit always important. This stops packed int VEX encodings from being disassembled when specified with VEX.L=1. Fixes PR10831 and PR10806. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138997 91177308-0d34-0410-b5e6-96231b3b80d8
* Give ATTR_VEX higher priority when generating the disassembler context ↵Craig Topper2011-08-25
| | | | | | table. Fixes disassembling of VEX instructions with 'pp'=00. Fixes subset of PR10678. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138552 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for the VIA PadLock instructions.Joerg Sonnenberger2011-04-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128826 91177308-0d34-0410-b5e6-96231b3b80d8
* Use array_lengthofJoerg Sonnenberger2011-04-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128823 91177308-0d34-0410-b5e6-96231b3b80d8
* Change loops to derive the number of tables automaticallyJoerg Sonnenberger2011-04-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128818 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 table-generator and disassembler support for the AVXSean Callanan2011-03-15
| | | | | | | | | | 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
* Constify another 2 disassembler tables.Benjamin Kramer2010-10-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117208 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the disassembler tables const so they end up in read-only memory.Benjamin Kramer2010-10-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117206 91177308-0d34-0410-b5e6-96231b3b80d8
* Make some symbols static, move classes into anonymous namespaces.Benjamin Kramer2010-10-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117111 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bunch of namespace polution.Dan Gohman2010-04-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
* Suppress compiler warning.Daniel Dunbar2009-12-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91959 91177308-0d34-0410-b5e6-96231b3b80d8
* fix build and while at it remove a redudant includeNuno Lopes2009-12-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91774 91177308-0d34-0410-b5e6-96231b3b80d8
* More bzero -> memset that I missed.Daniel Dunbar2009-12-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91757 91177308-0d34-0410-b5e6-96231b3b80d8
* Table-driven disassembler for the X86 architecture (16-, 32-, and 64-bit Sean Callanan2009-12-19
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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