Commit Graph

54 Commits

Author SHA1 Message Date
Craig Topper 4ab89ea187 [X86] Remove unused encoding types from disassembler. NFC
llvm-svn: 261494
2016-02-21 19:49:16 +00:00
Craig Topper 5eeb41c173 [X86] Remove unused entries from the disassembler type enum.
llvm-svn: 261311
2016-02-19 06:57:40 +00:00
Elena Demikhovsky 6b62b659cb X86-MPX: Implemented encoding for MPX instructions.
Added encoding tests.

llvm-svn: 239403
2015-06-09 13:02:10 +00:00
Craig Topper ef04b2b505 [X86] Remove some unused code from disassembler.
llvm-svn: 231055
2015-03-03 05:24:03 +00:00
Craig Topper 7d3c6d307a [X86] Teach disassembler to handle illegal immediates on AVX512 integer compare instructions.
llvm-svn: 227302
2015-01-28 10:09:56 +00:00
Craig Topper 620b50cc23 [X86] Convert all the i8imm used by SSE and AVX instructions to u8imm.
This makes the assembler check their size and removes a hack from the disassembler to avoid sign extending the immediate.

llvm-svn: 226645
2015-01-21 08:15:54 +00:00
Craig Topper 23fa478709 [X86] Remove some unused TYPE enums from the disassembler.
llvm-svn: 225343
2015-01-07 07:47:52 +00:00
Craig Topper ae8e1b3831 [X86] Disassembler support for move to/from %rax with a 32-bit memory offset is REX.W and AdSize prefix are both present.
llvm-svn: 225099
2015-01-03 00:00:20 +00:00
Craig Topper 99bcab7b85 [X86] Fix disassembly of absolute moves to work correctly in 16 and 32-bit modes with all 4 combinations of OpSize and AdSize prefixes being present or not.
llvm-svn: 225036
2014-12-31 07:07:31 +00:00
Benjamin Kramer a7c40ef022 Canonicalize header guards into a common format.
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

llvm-svn: 215558
2014-08-13 16:26:38 +00:00
Adam Nemet 4688a2e5cb [X86] Increase X86_MAX_OPERANDS from 5 to 6
This controls the number of operands in the disassembler's x86OperandSets
table.  The entries describe how the operand is encoded and its type.

Not to surprisingly 5 operands is insufficient for AVX512.  Consider
VALIGNDrrik in the next patch.  These are its operand specifiers:

  { /* 328 */
    { ENCODING_DUP, TYPE_DUP1 },
    { ENCODING_REG, TYPE_XMM512 },
    { ENCODING_WRITEMASK, TYPE_VK8 },
    { ENCODING_VVVV, TYPE_XMM512 },
    { ENCODING_RM_CD64, TYPE_XMM512 },
    { ENCODING_IB, TYPE_IMM8 },
  },

llvm-svn: 214889
2014-08-05 17:23:01 +00:00
Robert Khasanov bfa0131365 [SKX] Enabling SKX target and AVX512BW, AVX512DQ, AVX512VL features.
Enabling HasAVX512{DQ,BW,VL} predicates.
Adding VK2, VK4, VK32, VK64 masked register classes.
Adding new types (v64i8, v32i16) to VR512.
Extending calling conventions for new types (v64i8, v32i16)

Patch by Zinovy Nis <zinovy.y.nis@intel.com>
Reviewed by Elena Demikhovsky <elena.demikhovsky@intel.com>

llvm-svn: 213545
2014-07-21 14:54:21 +00:00
Adam Nemet 5933c2f824 [X86] AVX512: Add disassembler support for compressed displacement
There are two parts here.  First is to modify tablegen to adjust the encoding
type ENCODING_RM with the scaling factor.

The second is to use the new encoding types to compute the correct
displacement in the decoder.

Fixes <rdar://problem/17608489>

llvm-svn: 213281
2014-07-17 17:04:56 +00:00
Patrik Hagglund 319983810a Fix gcc -Wsign-compare warning in X86DisassemblerTables.cpp.
X86_MAX_OPERANDS is changed to unsigned.

Also, add range-based for loops for affected loops. This in turn
needed an ArrayRef instead of a pointer-to-array in
InternalInstruction.

llvm-svn: 207413
2014-04-28 12:12:27 +00:00
Richard Smith 6a6967eeaf More C++ification.
llvm-svn: 206722
2014-04-20 22:10:16 +00:00
Richard Smith ac15f1cda3 Don't provide two different definitions of ModRMDecision, OpcodeDecision, and ContextDecision in different source files (depending on #define magic).
llvm-svn: 206720
2014-04-20 21:52:16 +00:00
Richard Smith 82b47d5660 Don't define llvm::X86Disassembler::InstructionSpecifier in different ways in
different source files.

llvm-svn: 206719
2014-04-20 21:35:26 +00:00
Richard Smith 89ee75d786 What year is it! This file has no reason to be written in C, and has doubly no
reason to expose a global symbol 'decodeInstruction' nor to pollute the global
scope with a bunch of external linkage entities (some of which conflict with
others elsewhere in LLVM).

This is just the initial transition to C++; more cleanups to follow.

llvm-svn: 206717
2014-04-20 21:07:34 +00:00
Craig Topper 0d1fd55c13 Remove A6/A7 opcode maps. They can all be handled with a TB map, opcode of 0xa6/0xa7, and adding MRM_C0/MRM_E0 forms. Removes 376K from the disassembler tables.
llvm-svn: 201641
2014-02-19 05:34:21 +00:00
David Woodhouse b33c2ef215 [x86] Allow address-size overrides for STOS[BWLQ] (PR9385)
llvm-svn: 199804
2014-01-22 15:08:21 +00:00
David Woodhouse 2ef8d9c05c [x86] Allow segment and address-size overrides for LODS[BWLQ] (PR9385)
llvm-svn: 199803
2014-01-22 15:08:08 +00:00
David Woodhouse caaa2850c0 [x86] Fix disassembly of MOV16ao16 et al.
The addition of IC_OPSIZE_ADSIZE in r198759 wasn't quite complete. It
also turns out to have been unnecessary. The disassembler handles the
AdSize prefix for itself, and doesn't care about the difference between
(e.g.) MOV8ao8 and MOB8ao8_16 definitions. So just let them coexist and
don't worry about it.

llvm-svn: 199654
2014-01-20 12:02:53 +00:00
David Woodhouse 32da3c8f3b [x86] Fix MOV8ao8 et al for 16-bit mode, fix up disassembler to understand
It seems there is no separate instruction class for having AdSize *and*
OpSize bits set, which is required in order to disambiguate between all
these instructions. So add that to the disassembler.

Hm, perhaps we do need an AdSize16 bit after all?

llvm-svn: 198759
2014-01-08 12:58:24 +00:00
Craig Topper 3321c99a06 Remove modifierType/Base from X86 disassembler tables as they are no longer used. Removes ~11.5K from static tables.
llvm-svn: 198284
2014-01-01 21:52:57 +00:00
Craig Topper 9155118602 Remove need for MODIFIER_OPCODE in the disassembler tables. AddRegFrms are really more like OrRegFrm so we don't need a difference since we can just mask bits.
llvm-svn: 198278
2014-01-01 15:29:32 +00:00
Craig Topper 623b0d64b3 Second attempt at Removing special form of AddRegFrm used by FP instructions. These instructions can be handled by MRMXr instead.
llvm-svn: 198276
2014-01-01 14:22:37 +00:00
Craig Topper e98c8cb9f0 Revert r198238 and add FP disassembler tests. It didn't work and I didn't realized we had no FP disassembler test cases.
llvm-svn: 198265
2013-12-31 17:21:44 +00:00
Craig Topper 0e21bca6dd Remove special form of AddRegFrm used by FP instructions. These instructions can be handled by MRMXr instead.
llvm-svn: 198238
2013-12-30 19:16:48 +00:00
Elena Demikhovsky 371e363833 AVX-512: decoder for AVX-512, made by Alexey Bader.
llvm-svn: 198013
2013-12-25 11:40:51 +00:00
Elena Demikhovsky 47fc44e52e AVX-512: Added legal type MVT::i1 and VK1 register for it.
Added scalar compare VCMPSS, VCMPSD.
Implemented LowerSELECT for scalar FP operations.
I replaced FSETCCss, FSETCCsd with one node type FSETCCs.
Node extract_vector_elt(v16i1/v8i1, idx) returns an element of type i1.

llvm-svn: 197384
2013-12-16 13:52:35 +00:00
Elena Demikhovsky dacddb0bab AVX-512: added VPCONFLICT instruction and intrinsics,
added EVEX_KZ to tablegen

llvm-svn: 193959
2013-11-03 13:46:31 +00:00
Craig Topper 9e3e38ae3f Add XOP disassembler support. Fixes PR13933.
llvm-svn: 191874
2013-10-03 05:17:48 +00:00
Craig Topper ed59dd34fd Various x86 disassembler fixes.
Add VEX_LIG to scalar FMA4 instructions.
Use VEX_LIG in some of the inheriting checks in disassembler table generator.
Make use of VEX_L_W, VEX_L_W_XS, VEX_L_W_XD contexts.
Don't let VEX_L_W, VEX_L_W_XS, VEX_L_W_XD, VEX_L_W_OPSIZE inherit from their non-L forms unless VEX_LIG is set.
Let VEX_L_W, VEX_L_W_XS, VEX_L_W_XD, VEX_L_W_OPSIZE inherit from all of their non-L or non-W cases.
Increase ranking on VEX_L_W, VEX_L_W_XS, VEX_L_W_XD, VEX_L_W_OPSIZE so they get chosen over non-L/non-W forms.

llvm-svn: 191649
2013-09-30 02:46:36 +00:00
Elena Demikhovsky 003e7d73b9 Added encoding prefixes for KNL instructions (EVEX).
Added 512-bit operands printing.
Added instruction formats for KNL instructions.

llvm-svn: 187324
2013-07-28 08:28:38 +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
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 5f33d90214 Tidy up trailing whitespace
llvm-svn: 161026
2012-07-31 04:38:27 +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
Craig Topper 6dedbae429 Use uint8_t instead of enums to store values in X86 disassembler table. Shaves 150k off the size of X86DisassemblerDecoder.o
llvm-svn: 151995
2012-03-04 02:16:41 +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
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
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 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 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 88cb33e0d4 Fix disassembler handling of CRC32 which is an odd instruction that uses 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.
llvm-svn: 140954
2011-10-01 19:54:56 +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
Michael J. Spencer 447762da85 Merge System into Support.
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
Chris Lattner f60062fd55 add basic avx support to the disassembler, also teach it about ssmem/sdmem
operands.

With this done, we can remove the _Int suffixes from the round instructions
without the disassembler blowing up.  This allows the assembler to support
them, implementing rdar://8456376 - llvm-mc rejects 'roundss'

llvm-svn: 115019
2010-09-29 02:57:56 +00:00