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2019-12-10PR24960, Memory leak from disassemblerAlan Modra2-0/+64
PR 24960 include/ * dis-asm.h (disassemble_free_target): Declare. opcodes/ * disassemble.c (disassemble_free_target): New function. binutils/ * objdump.c (disassemble_data): Call disassemble_free_target.
2019-12-10Use disassemble_info.private_data in place of insn_setsAlan Modra17-27/+46
No cgen target uses private_data. This patch removes a disassemble_info field that is only used by cgen, and instead uses private_data. It also removes a macro that is no longer used. include/ * dis-asm.h (struct disassemble_info): Delete insn_sets. (INIT_DISASSEMBLE_INFO_NO_ARCH): Don't define. opcodes/ * cgen-dis.in (print_insn_@arch@): Replace insn_sets with private_data. * disassemble.c (disassemble_init_for_target): Likewise. * bpf-dis.c: Regenerate. * epiphany-dis.c: Regenerate. * fr30-dis.c: Regenerate. * frv-dis.c: Regenerate. * ip2k-dis.c: Regenerate. * iq2000-dis.c: Regenerate. * lm32-dis.c: Regenerate. * m32c-dis.c: Regenerate. * m32r-dis.c: Regenerate. * mep-dis.c: Regenerate. * mt-dis.c: Regenerate. * or1k-dis.c: Regenerate. * xc16x-dis.c: Regenerate. * xstormy16-dis.c: Regenerate.
2019-12-10Remove backup ppc struct dis_private.Alan Modra2-3/+10
ppc-dis.c used a global struct whenever malloc failed to provide the eight bytes of memory necessary for struct dis_private. Which is quite ridiculous. If that malloc failed there is zero chance some other malloc won't fail too. * ppc-dis.c (private): Delete variable. (get_powerpc_dialect): Don't segfault on NULL info->private_data. (powerpc_init_dialect): Don't use global private.
2019-12-10s12z-opc.c formatting fixesAlan Modra2-71/+82
Wrap overlong lines, whitespace fixes, and for function definitions start a line with the name of the function. * s12z-opc.c: Formatting.
2019-12-08S12Z disassembler memory leakAlan Modra2-12/+17
* s12z-opc.c (exg_sex_discrim): Don't leak memory on invalid registers.
2019-12-05Arm64: simplify Crypto arch extension handlingJan Beulich2-12/+6
This, at the assembler level, is just a "brace" feature covering both AES and SHA2. Hence there's no need for it to have a separate feature flag, freeing up a bit for future re-use. Along these lines there are also a number of dead definitions/variables in the opcode table file.
2019-12-05PR25249, Memory leak in microblaze-dis.cAlan Modra2-138/+182
PR 25249 * microblaze-dis.c (NUM_STRBUFS, STRBUF_SIZE): Define. (struct string_buf): New. (strbuf): New function. (get_field): Use strbuf rather than strdup of local temp. (get_field_imm, get_field_imm5, get_field_imm5_mbar): Likewise. (get_field_rfsl, get_field_imm15): Likewise. (get_field_rd, get_field_r1, get_field_r2): Update macros. (get_field_special): Likewise. Don't strcpy spr. Formatting. (print_insn_microblaze): Formatting. Init and pass string_buf to get_field functions.
2019-12-04x86-64: accept 64-bit LFS/LGS/LSS forms with suffix or operand size specifierJan Beulich3-6/+11
Since we accept these without suffix / operand size specifier, we should also do so with one. (The fact that we unilaterally accept these, other than far branches, rather than limiting them to Intel64 mode, will be taken care of later on.) Also take the opportunity and make sure "lfs <reg>, tbyte ptr <mem>" et al get rejected outside of 64-bit mode. This became broken by dc2be329b950 ("i386: Only check suffix in instruction mnemonic"). Furthermore cover lgdt et al in the Intel syntax handling as well, which continued to work after said commit just by coincidence.
2019-12-04x86/Intel: extend MOVDIRI testingJan Beulich2-1/+5
Test also memory operands with operand size specifier, which was broken prior to dc2be329b950 ("i386: Only check suffix in instruction mnemonic"), due to the template not permitting any suffixes. Note that this uncovered a disassembler issue, which is being fixed here as well.
2019-12-04x86: drop some stray/bogus DefaultSizeJan Beulich3-10/+17
Insns permitting only GPR operands (and hence implicit sizing when there's no suffix) don't ever have their DefaultSize attribute inspected, so it shouldn't be there in the first place. Additionally XBEGIN is like JMP, not CALL, and hence shouldn't be converted to 32-bit operand size in .code16gcc mode. While the same is true for SYSRET, it permitting more than one suffix makes it FLDENV- like, and hence rather than dropping the attribute, for now add it to the exclusion list to avoid it getting an operand size prefix emitted in .code16gcc mode. (This will be dealt with later, perhaps together with FLDENV and friends.)
2019-11-22Arm: Change CRC from fpu feature to archititectural extensionMihail Ionescu2-12/+18
This patch changes the CRC extension to use the core feature bits instead of the coproc/fpu feature bits. CRC is not an fpu feature and it causes issues with the new fpu reset patch (f439988037a589de3798f44e7268301adaec21a9). CRC can be set using the '.arch_extension' directive, which sets bits in the coproc bitfield. When a '.fpu' directive is encountered, the CRC feature bit gets removed and there is no way to set it back using '.fpu'. With this patch, CRC will be marked in the feature core bits, which prevents it from getting removed when setting/changing the fpu options. gas/ChangeLog: * config/tc-arm.c (arm_ext_crc): New. (crc_ext_armv8): Remove. (insns): Rename crc_ext_armv8 to arm_ext_crc. (arm_cpus): Replace CRC_EXT_ARMV8 with ARM_EXT2_CRC. (armv8a_ext_table, armv8r_ext_table, arm_option_extension_value_table): Redefine the crc extension in terms of ARM_EXT2_CRC. * gas/testsuite/gas/arm/crc-ext.s: New. * gas/testsuite/gas/arm/crc-ext.d: New. include/ChangeLog: * opcode/arm.h (ARM_EXT2_CRC): New extension feature to replace CRC_EXT_ARMV8. (CRC_EXT_ARMV8): Remove and mark bit as unused. (ARM_ARCH_V8A_CRC, ARM_ARCH_V8_1A, ARM_ARCH_V8_2A, ARM_ARCH_V8_3A, ARM_ARCH_V8_4A, ARM_ARCH_V8_5A, ARM_ARCH_V8_6A): Redefine using ARM_EXT2_CRC instead of CRC_EXT_ARMV8. opcodes/ChangeLog: * opcodes/arm-dis.c (arm_opcodes, thumb32_opcodes): Change the coproc CRC conditions to use the extension feature set, second word, base on ARM_EXT2_CRC.
2019-11-14x86: drop redundant SYSCALL/SYSRET templatesJan Beulich3-26/+5
The Cpu64 forms are no different in their attributes except for the CPU flags; there's no need to key these off of anything other than CpuSYSCALL even for the 64-bit forms. Dropping these improves the diagnostic on SYSRETQ used in 32-bit code from "unsupported instruction `sysret'" to "invalid instruction suffix for `sysret'".
2019-11-14x86: fold individual Jump* attributes into a single Jump oneJan Beulich5-14858/+10948
..., taking just 3 bits instead of 5. No two of them are used together.
2019-11-14x86: make JumpAbsolute an insn attributeJan Beulich6-26480/+26486
... instead of an operand one: There's only ever one operand here anyway.
2019-11-14x86: make AnySize an insn attributeJan Beulich5-14486/+14499
... instead of an operand one. Which operand it applies to can be determined from other operand properties, but as it turns out the only place it is actually used at doesn't even need further qualification.
2019-11-12RISC-V: Support the INSN_CLASS.*F.* classes for .insn directive.Jim Wilson2-60/+66
We have to enable the f extension through -march or ELF attribute if we use the FPR in .insn directive. The behavior is same as the riscv_opcodes. 2019-11-12 Nelson Chu <nelson.chu@sifive.com> opcodes/ * riscv-opc.c (riscv_insn_types): Replace the INSN_CLASS_I with INSN_CLASS_F and the INSN_CLASS_C with INSN_CLASS_F_AND_C if we use the floating point register (FPR). gas/ * testsuite/gas/riscv/insn.d: Add the f extension to -march option. Change-Id: I4f59d04c82673ef84c56ecd2659ad8ce164dd626
2019-11-12[binutils][arm] Update the decoding of MVE VMOV, VMVNMihail Ionescu2-6/+18
This patch updates the decoding of the VMOV and VMVN instructions which depend on cmode. Previously VMOV and VMVN with cmode 1101 were not allowed. The cmode changes also required updating of the MVE conflict checking. Now instructions with opcodes 0xef800d50 and 0xef800e70 correctly get decoded as VMOV and VMVN, respectively. 2019-11-12 Mihail Ionescu <mihail.ionescu@arm.com> * opcodes/arm-dis.c (mve_opcodes): Enable VMOV imm to vec with cmode 1101. (is_mve_encoding_conflict): Update cmode conflict checks for MVE_VMVN_IMM. 2019-11-12 Mihail Ionescu <mihail.ionescu@arm.com> * gas/config/tc-arm.c (do_neon_mvn): Allow mve_ext cmode=0xd. * testsuite/gas/arm/mve-vmov-vmvn-vorr-vbic.s: New test. * testsuite/gas/arm/mve-vmov-vmvn-vorr-vbic.d: Likewise.
2019-11-12x86: fold EsSeg into IsStringJan Beulich6-11272/+11287
EsSeg (a per-operand bit) is used with IsString (a per-insn attribute) only. Extend the attribute to 2 bits, thus allowing to encode - not a string insn, - string insn with neither operand requiring use of %es:, - string insn with 1st operand requiring use of %es:, - string insn with 2nd operand requiring use of %es:, which covers all possible cases, allowing to drop EsSeg. The (transient) need to comment out the OTUnused #define did uncover an oversight in the earlier OTMax -> OTNum conversion, which is being taken care of here.
2019-11-12x86: eliminate ImmExt abuseJan Beulich6-93/+197
Drop the remaining instances left in place by commit c3949f432f ("x86: limit ImmExt abuse), now that we have a way to specify specific GPRs. Take the opportunity and also introduce proper 16-bit forms of applicable SVME insns as well as 1-operand forms of CLZERO.
2019-11-12x86: introduce operand type "instance"Jan Beulich7-14199/+14252
Special register "class" instances can't be combined with one another (neither in templates nor in register entries), and hence it is not a good use of resources (memory as well as execution time) to represent them as individual bits of a bit field. Furthermore the generalization becoming possible will allow improvements to the handling of insns accepting only individual registers as their operands.
2019-11-11Arm64: SVE2's smaxp/sminp require operands 1 and 3 to be the same registerJan Beulich2-2/+7
This is just like for their umaxp/uminp and fmaxp/fminp counterparts.
2019-11-11Arm64: fix build with old glibcJan Beulich2-10/+12
Some old glibc versions have string.h surface "index", which some compilers then warn about if shadowed by a local variable. Re-use an existing variable instead.
2019-11-08i386: Only check suffix in instruction mnemonicH.J. Lu3-4/+10
We should check suffix in instruction mnemonic when matching instruction. In Intel syntax, normally we check for memory operand size. But the same mnemonic with 2 different encodings can have the same memory operand size and i.suffix is set to LONG_DOUBLE_MNEM_SUFFIX from memory operand size in Intel syntax to distinguish them. When there is no suffix in mnemonic, we check LONG_DOUBLE_MNEM_SUFFIX in i.suffix for mnemonic suffix. gas/ PR gas/25167 * config/tc-i386.c (match_template): Don't check instruction suffix set from operand. * testsuite/gas/i386/code16.d: New file. * testsuite/gas/i386/code16.s: Likewise. * testsuite/gas/i386/i386.exp: Run code16. * testsuite/gas/i386/x86-64-branch-4.l: Updated. opcodes/ PR gas/25167 * i386-opc.tbl: Remove IgnoreSize from cmpsd and movsd. * i386-tbl.h: Regenerated.
2019-11-08x86: convert RegMask and RegBND from bitfield to enumeratorJan Beulich7-14560/+14574
This is to further shrink the operand type representation.
2019-11-08x86: convert RegSIMD and RegMMX from bitfield to enumeratorJan Beulich7-19174/+19187
This is to further shrink the operand type representation.
2019-11-08x86: convert Control/Debug/Test from bitfield to enumeratorJan Beulich7-14001/+14015
This is to further shrink the operand type representation.
2019-11-08x86: convert SReg from bitfield to enumeratorJan Beulich7-13810/+13823
This is to further shrink the operand type representation.
2019-11-08x86: introduce operand type "class"Jan Beulich6-105/+165
Many operand types, in particular the various kinds of registers, can't be combined with one another (neither in templates nor in register entries), and hence it is not a good use of resources (memory as well as execution time) to represent them as individual bits of a bit field.
2019-11-07[gas][aarch64] Add the v8.6 Data Gathering Hint mnemonic [10/X]Matthew Malcomson3-49/+61
Hi, This patch is part of a series that adds support for Armv8.6-A to binutils. In this last patch, the new Data Gathering Hint mnemonic is introduced. Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * testsuite/gas/aarch64/dgh.s: New test. * testsuite/gas/aarch64/dgh.d: New test. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * opcodes/aarch64-tbl.h (V8_6_INSN): New macro for v8.6 instructions. (aarch64_opcode_table): Add data gathering hint mnemonic. * opcodes/aarch64-dis-2.c: Account for new instruction. Is it ok for trunk? Regards, Mihail
2019-11-07[Patch][binutils][arm] Armv8.6-A Matrix Multiply extension [9/10]Matthew Malcomson2-0/+19
Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces the Matrix Multiply (Int8, F32, F64) extensions to the arm backend. The following Matrix Multiply instructions are added: vummla, vsmmla, vusmmla, vusdot, vsudot[1]. [1]https://developer.arm.com/docs/ddi0597/latest/simd-and-floating-point-instructions-alphabetic-order Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * config/tc-arm.c (arm_ext_i8mm): New feature set. (do_vusdot): New. (do_vsudot): New. (do_vsmmla): New. (do_vummla): New. (insns): Add vsmmla, vummla, vusmmla, vusdot, vsudot mnemonics. (armv86a_ext_table): Add i8mm extension. (arm_extensions): Move bf16 extension to context sensitive table. (armv82a_ext_table, armv84a_ext_table, armv85a_ext_table): Move bf16 extension to context sensitive table. (armv86a_ext_table): Add i8mm extension. * doc/c-arm.texi: Document i8mm extension. * testsuite/gas/arm/i8mm.s: New test. * testsuite/gas/arm/i8mm.d: New test. * testsuite/gas/arm/bfloat17-cmdline-bad-3.d: Update test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * opcode/arm.h (ARM_EXT2_I8MM): New feature macro. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * arm-dis.c (neon_opcodes): Add i8mm SIMD instructions. Regression tested on arm-none-eabi. Is this ok for trunk? Regards, Mihail
2019-11-07[binutils][aarch64] Matrix Multiply extension enablement [8/X]Matthew Malcomson6-462/+877
Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces the Matrix Multiply (Int8, F32, F64) extensions to the aarch64 backend. The following instructions are added: {s/u}mmla, usmmla, {us/su}dot, fmmla, ld1rob, ld1roh, d1row, ld1rod, uzip{1/2}, trn{1/2}. Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * config/tc-aarch64.c: Add new arch fetures to suppport the mm extension. (parse_operands): Add new operand. * testsuite/gas/aarch64/i8mm.s: New test. * testsuite/gas/aarch64/i8mm.d: New test. * testsuite/gas/aarch64/f32mm.s: New test. * testsuite/gas/aarch64/f32mm.d: New test. * testsuite/gas/aarch64/f64mm.s: New test. * testsuite/gas/aarch64/f64mm.d: New test. * testsuite/gas/aarch64/sve-movprfx-mm.s: New test. * testsuite/gas/aarch64/sve-movprfx-mm.d: New test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * opcode/aarch64.h (AARCH64_FEATURE_I8MM): New. (AARCH64_FEATURE_F32MM): New. (AARCH64_FEATURE_F64MM): New. (AARCH64_OPND_SVE_ADDR_RI_S4x32): New. (enum aarch64_insn_class): Add new instruction class "aarch64_misc" for instructions that do not require special handling. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> * aarch64-tbl.h (aarch64_feature_i8mm_sve, aarch64_feature_f32mm_sve, aarch64_feature_f64mm_sve, aarch64_feature_i8mm, aarch64_feature_f32mm, aarch64_feature_f64mm): New feature sets. (INT8MATMUL_INSN, F64MATMUL_SVE_INSN, F64MATMUL_INSN, F32MATMUL_SVE_INSN, F32MATMUL_INSN): New macros to define matrix multiply instructions. (I8MM_SVE, F32MM_SVE, F64MM_SVE, I8MM, F32MM, F64MM): New feature set macros. (QL_MMLA64, OP_SVE_SBB): New qualifiers. (OP_SVE_QQQ): New qualifier. (INT8MATMUL_SVE_INSNC, F64MATMUL_SVE_INSNC, F32MATMUL_SVE_INSNC): New feature set for bfloat16 instructions to support the movprfx constraint. (aarch64_opcode_table): Support for SVE_ADDR_RI_S4x32. (aarch64_opcode_table): Define new instructions smmla, ummla, usmmla, usdot, sudot, fmmla, ld1rob, ld1roh, ld1row, ld1rod uzip{1/2}, trn{1/2}. * aarch64-opc.c (operand_general_constraint_met_p): Handle AARCH64_OPND_SVE_ADDR_RI_S4x32. (aarch64_print_operand): Handle AARCH64_OPND_SVE_ADDR_RI_S4x32. * aarch64-dis-2.c (aarch64_opcode_lookup_1, aarch64_find_next_opcode): Account for new instructions. * opcodes/aarch64-asm-2.c (aarch64_insert_operand): Support the new S4x32 operand. * aarch64-opc-2.c (aarch64_operands): Support the new S4x32 operand. Regression tested on arm-none-eabi. Is it ok for trunk? Regards, Mihail
2019-11-07[binutils][arm] BFloat16 enablement [4/X]Matthew Malcomson2-5/+42
Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces BFloat16 instructions to the arm backend. The following BFloat16 instructions are added: vdot, vfma{l/t}, vmmla, vfmal{t/b}, vcvt, vcvt{t/b}. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * config/tc-arm.c (arm_archs): Add armv8.6-a option. (cpu_arch_ver): Add TAG_CPU_ARCH_V8 tag for Armv8.6-a. * doc/c-arm.texi (-march): New armv8.6-a arch. * config/tc-arm.c (arm_ext_bf16): New feature set. (enum neon_el_type): Add NT_bfloat value. (B_MNEM_vfmat, B_MNEM_vfmab): New bfloat16 encoder helpers. (BAD_BF16): New message. (parse_neon_type): Add bf16 type specifier. (enum neon_type_mask): Add N_BF16 type. (type_chk_of_el_type): Account for NT_bfloat. (el_type_of_type_chk): Account for N_BF16. (neon_three_args): Split out from neon_three_same. (neon_three_same): Part split out into neon_three_args. (CVT_FLAVOUR_VAR): Add bf16_f32 cvt flavour. (do_neon_cvt_1): Account for vcvt.bf16.f32. (do_bfloat_vmla): New. (do_mve_vfma): New function to deal with the mnemonic clash between the BF16 vfmat and the MVE vfma in a VPT block with a 't'rue condition. (do_neon_cvttb_1): Account for vcvt{t,b}.bf16.f32. (do_vdot): New (do_vmmla): New (insns): Add vdot and vmmla mnemonics. (arm_extensions): Add "bf16" extension. * doc/c-arm.texi: Document "bf16" extension. * testsuite/gas/arm/attr-march-armv8_6-a.d: New test. * testsuite/gas/arm/bfloat16-bad.d: New test. * testsuite/gas/arm/bfloat16-bad.l: New test. * testsuite/gas/arm/bfloat16-bad.s: New test. * testsuite/gas/arm/bfloat16-cmdline-bad-2.d: New test. * testsuite/gas/arm/bfloat16-cmdline-bad-3.d: New test. * testsuite/gas/arm/bfloat16-cmdline-bad.d: New test. * testsuite/gas/arm/bfloat16-neon.s: New test. * testsuite/gas/arm/bfloat16-non-neon.s: New test. * testsuite/gas/arm/bfloat16-thumb-bad.d: New test. * testsuite/gas/arm/bfloat16-thumb-bad.l: New test. * testsuite/gas/arm/bfloat16-thumb.d: New test. * testsuite/gas/arm/bfloat16-vfp.d: New test. * testsuite/gas/arm/bfloat16.d: New test. * testsuite/gas/arm/bfloat16.s: New test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * opcode/arm.h (ARM_EXT2_V8_6A, ARM_AEXT2_V8_6A, ARM_ARCH_V8_6A): New. * opcode/arm.h (ARM_EXT2_BF16): New feature macro. (ARM_AEXT2_V8_6A): Include above macro in definition. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * arm-dis.c (select_arm_features): Update bfd_march_arm_8 with Armv8.6-A. (coprocessor_opcodes): Add bfloat16 vcvt{t,b}. (neon_opcodes): Add bfloat SIMD instructions. (print_insn_coprocessor): Add new control character %b to print condition code without checking cp_num. (print_insn_neon): Account for BFloat16 instructions that have no special top-byte handling. Regression tested on arm-none-eabi. Is it ok for trunk? Regards, Mihail
2019-11-07[Patch][binutils][arm] Create a new generic coprocessor array [3/10]Matthew Malcomson2-51/+98
Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. Some generic instructions match a large range of encoding space (e.g. stc, mcr, mrc). Currently these instructions are in the coprocessor_opcodes array, which means they are checked before many other instructions when disassembling arm and thumb32 codes. This patch moves the generic instructions into a separate array to be checked later on. This is done in order to avoid instruction conflict between the generic instructions and newer ones -- this has already been seen with MVE, and is also a problem with BFloat16. One way to avoid the conflict could be to swap the search order between coprocessor_opcodes and neon_opcodes. We avoid this since it's a larger change that may introduce extra bugs (that aren't caught by the testsuite). We have decided against searching the generic array after searching the arm specific and thumb32 specific arrays with a similar reasoning about keeping the change small. Regression tested with arm-none-linux-gnueabihf. Committed on behalf of Mihail Ionescu. opcodes/ChangeLog: 2019-10-29 Mihail Ionescu <mihail.ionescu@arm.com> 2019-10-29 Matthew Malcomson <matthew.malcomson@arm.com> * arm-dis.c (print_insn_coprocessor, print_insn_generic_coprocessor): Create wrapper functions around the implementation of the print_insn_coprocessor control codes. (print_insn_coprocessor_1): Original print_insn_coprocessor function that now takes which array to look at as an argument. (print_insn_arm): Use both print_insn_coprocessor and print_insn_generic_coprocessor. (print_insn_thumb32): As above. Is it ok for trunk? Regards, Mihail
2019-11-07[binutils][aarch64] Bfloat16 enablement [2/X]Matthew Malcomson6-68/+373
Hi, This patch is part of a series that adds support for Armv8.6-A (Matrix Multiply and BFloat16 extensions) to binutils. This patch introduces the following BFloat16 instructions to the aarch64 backend: bfdot, bfmmla, bfcvt, bfcvtnt, bfmlal[t/b], bfcvtn2. Committed on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * config/tc-aarch64.c (vectype_to_qualifier): Special case the S_2H operand qualifier. * doc/c-aarch64.texi: Document bf16 and bf16mmla4 extensions. * testsuite/gas/aarch64/bfloat16.d: New test. * testsuite/gas/aarch64/bfloat16.s: New test. * testsuite/gas/aarch64/illegal-bfloat16.d: New test. * testsuite/gas/aarch64/illegal-bfloat16.l: New test. * testsuite/gas/aarch64/illegal-bfloat16.s: New test. * testsuite/gas/aarch64/sve-bfloat-movprfx.s: New test. * testsuite/gas/aarch64/sve-bfloat-movprfx.d: New test. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * opcode/aarch64.h (AARCH64_FEATURE_BFLOAT16): New feature macros. (AARCH64_ARCH_V8_6): Include BFloat16 feature macros. (enum aarch64_opnd_qualifier): Introduce new operand qualifier AARCH64_OPND_QLF_S_2H. (enum aarch64_insn_class): Introduce new class "bfloat16". (BFLOAT16_SVE_INSNC): New feature set for bfloat16 instructions to support the movprfx constraint. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * aarch64-asm.c (aarch64_ins_reglane): Use AARCH64_OPND_QLF_S_2H in reglane special case. * aarch64-dis-2.c (aarch64_opcode_lookup_1, aarch64_find_next_opcode): Account for new instructions. * aarch64-dis.c (aarch64_ext_reglane): Use AARCH64_OPND_QLF_S_2H in reglane special case. * aarch64-opc.c (struct operand_qualifier_data): Add data for new AARCH64_OPND_QLF_S_2H qualifier. * aarch64-tbl.h (QL_BFDOT QL_BFDOT64, QL_BFDOT64I, QL_BFMMLA2, QL_BFCVT64, QL_BFCVTN64, QL_BFCVTN2_64): New qualifiers. (aarch64_feature_bfloat16, aarch64_feature_bfloat16_sve, aarch64_feature_bfloat16_bfmmla4): New feature sets. (BFLOAT_SVE, BFLOAT): New feature set macros. (BFLOAT_SVE_INSN, BFLOAT_BFMMLA4_INSN, BFLOAT_INSN): New macros to define BFloat16 instructions. (aarch64_opcode_table): Define new instructions bfdot, bfmmla, bfcvt, bfcvtnt, bfdot, bfdot, bfcvtn, bfmlal[b/t] bfcvtn2, bfcvt. Regression tested on aarch64-elf. Is it ok for trunk? Regards, Mihail
2019-11-07[gas][aarch64] Armv8.6-a option [1/X]Matthew Malcomson2-0/+8
Hi, This patch is part of a series that adds support for Armv8.6-A to binutils. This first patch adds the Armv8.6-A flag to binutils. No instructions are behind it at the moment. Commited on behalf of Mihail Ionescu. gas/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * config/tc-aarch64.c (armv8.6-a): New arch. * doc/c-aarch64.texi (armv8.6-a): Document new arch. include/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * opcode/aarch64.h (AARCH64_FEATURE_V8_6): New. (AARCH64_ARCH_V8_6): New. opcodes/ChangeLog: 2019-11-07 Mihail Ionescu <mihail.ionescu@arm.com> 2019-11-07 Matthew Malcomson <matthew.malcomson@arm.com> * aarch64-tbl.h (ARMV8_6): New macro. Is it ok for trunk? Regards, Mihail
2019-11-07x86: support further AMD Zen2 instructionsJan Beulich7-4080/+4160
Both RDPRU and MCOMMIT have been publicly documented meanwhile: https://www.amd.com/system/files/TechDocs/24594.pdf.
2019-11-07x86: adjust register names printed for MONITOR/MWAITJan Beulich2-16/+20
As the comments (here: almost, in the opcode table: fully) correctly state - all register operands except MONITOR's address one are fixed at 32 bit size. Don't print 64-bit registers there. Also adjust x86-64-suffix.d's name such that it wouldn't be identical to x86-64-rep-suffix.d's, but instead resemble that of its sibling x86-64-suffix-intel.d.
2019-11-07x86/Intel: drop IgnoreSize from operand-less MOVSD/CMPSD againJan Beulich3-4/+11
These were mistakenly added by d241b91073 ("x86/Intel: correct MOVSD and CMPSD handling"). This addresses part of PR/gas 25167.
2019-11-05x86: fold OP_Mwaitx() into OP_Mwait()Jan Beulich2-24/+11
There's no need to have separate functions, the difference can easily be expressed using the function arguments.
2019-11-05x86: split MONITORX/MWAITX entriesJan Beulich2-2/+21
Both encodings do not ignore the 66/F3/F2 prefixes, so don't have the disassembler ignore them either.
2019-11-05x86: consolidate disassembler enum naming a littleJan Beulich2-75/+130
The original idea looks to have been for names to be composed in the order that decoding gets done, which helps both reading and modifying the code. Switch (back) to this model for some of the affected non- vector insn enumerators.
2019-11-04Fix potential array overruns when disassembling corrupt v850 binaries.Nick Clifton2-60/+129
* v850-dis.c (get_v850_sreg_name): New function. Returns the name of a v850 system register. Move the v850_sreg_names array into this function. (get_v850_reg_name): Likewise for ordinary register names. (get_v850_vreg_name): Likewise for vector register names. (get_v850_cc_name): Likewise for condition codes. * get_v850_float_cc_name): Likewise for floating point condition codes. (get_v850_cacheop_name): Likewise for cache-ops. (get_v850_prefop_name): Likewise for pref-ops. (disassemble): Use the new accessor functions.
2019-10-30Modify the ARNM assembler to accept the omission of the immediate argument ↵Delia Burduv4-3/+15
for the writeback form of the LDRAA and LDRAB mnemonics This is a shorthand for the immediate argument being 0, as described here: https://developer.arm.com/docs/ddi0596/latest/base-instructions-alphabetic-order/ldraa-ldrab-load-register-with-pointer-authentication This is because the instructions still have a use with an immediate argument of 0, unlike loads without the PAC functionality. Currently, the mnemonics are LDRAA Xt, [Xn, #<simm10>]! LDRAB Xt, [Xn, #<simm10>]! After this patch they become LDRAA Xt, [Xn {, #<simm10>}]! LDRAB Xt, [Xn {, #<simm10>}]! gas * config/tc-aarch64.c (parse_address_main): Accept the omission of the immediate argument for ldraa and ldrab as a shorthand for the immediate being 0. * testsuite/gas/aarch64/ldraa-ldrab-no-offset.d: New test. * testsuite/gas/aarch64/ldraa-ldrab-no-offset.s: New test. * testsuite/gas/aarch64/illegal-ldraa.s: Modified to accept the writeback form with no offset. * testsuite/gas/aarch64/illegal-ldraa.s: Removed missing offset error. opcodes * aarch64-opc.c (print_immediate_offset_address): Don't print the immediate for the writeback form of ldraa/ldrab if it is 0. * aarch64-tbl.h: Updated the documentation for ADDR_SIMM10. * aarch64-opc-2.c: Regenerated.
2019-10-30x86: re-do "shorthand" handlingJan Beulich4-219/+214
Now that the opcode table gets preprocessed, undo parts of commit dc821c5f9a ("x86: replace Reg8, Reg16, Reg32, and Reg64"): Have the preprocessor handle the expansion there, while making the expansions explicit in i386-gen and the register table.
2019-10-30x86: slightly rearrange struct insn_templateJan Beulich4-3918/+3925
This avoids holes between the individual fields, (potentially) shrinking the overall template table size by 4 bytes per entry.
2019-10-30x86: drop stray WJan Beulich5-19/+54
The flag is used to indicate opcodes which can be switched between byte and word/dword/qword forms (in a "canonical" way). Obviously it's quite odd then to see it on insns not allowing for byte operands in the first place. As a result the opcode bytes need to be adjusted accordingly, which includes comparisons done in optimize_encoding(). To make re-introduction of such issues less likely have i386-gen diagnose it (in a generally non-fatal way for now).
2019-10-29Fix array overrun when disassembling corrupt TIC30 binaries.Nick Clifton2-1/+5
* tic30-dis.c (print_branch): Correct size of operand array.
2019-10-29Fix a potential illegal array access in the D30V disassembler.Nick Clifton2-1/+9
* d30v-dis.c (print_insn): Check that operand index is valid before attempting to access the operands array.
2019-10-29Prevent a left shift by a negative value when disassembling IA64 binaries.Nick Clifton2-3/+11
* ia64-opc.c (locate_opcode_ent): Prevent a negative shift when locating the bit to be tested.
2019-10-29Fix array overruns in the S12Z disassembler.Nick Clifton3-16/+56
* s12z-dis.c (opr_emit_disassembly): Check for illegal register values. (shift_size_table): Use a fixed size defined as S12Z_N_SIZES. (print_insn_s12z): Check for illegal size values.
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