diff options
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index ff6129c..2996751 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -641,6 +641,8 @@ static const arch_entry cpu_arch[] = CPU_FMA_FLAGS }, { ".fma4", PROCESSOR_UNKNOWN, CPU_FMA4_FLAGS }, + { ".lwp", PROCESSOR_UNKNOWN, + CPU_LWP_FLAGS }, { ".movbe", PROCESSOR_UNKNOWN, CPU_MOVBE_FLAGS }, { ".ept", PROCESSOR_UNKNOWN, @@ -2720,18 +2722,28 @@ build_vex_prefix (const insn_template *t) /* 3-byte VEX prefix. */ unsigned int m, w; + i.vex.length = 3; + i.vex.bytes[0] = 0xc4; + if (i.tm.opcode_modifier.vex0f) m = 0x1; else if (i.tm.opcode_modifier.vex0f38) m = 0x2; else if (i.tm.opcode_modifier.vex0f3a) m = 0x3; + else if (i.tm.opcode_modifier.xop09) + { + m = 0x9; + i.vex.bytes[0] = 0x8f; + } + else if (i.tm.opcode_modifier.xop0a) + { + m = 0xa; + i.vex.bytes[0] = 0x8f; + } else abort (); - i.vex.length = 3; - i.vex.bytes[0] = 0xc4; - /* The high 3 bits of the second VEX byte are 1's compliment of RXB bits from REX. */ i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m; @@ -4936,7 +4948,8 @@ build_modrm_byte (void) a instruction with VEX prefix and 3 sources. */ if (i.mem_operands == 0 && ((i.reg_operands == 2 - && !i.tm.opcode_modifier.vexndd) + && !i.tm.opcode_modifier.vexndd + && !i.tm.opcode_modifier.vexlwp) || (i.reg_operands == 3 && i.tm.opcode_modifier.vexnds) || (i.reg_operands == 4 && vex_3_sources))) @@ -5252,11 +5265,22 @@ build_modrm_byte (void) else mem = ~0; + if (i.tm.opcode_modifier.vexlwp) + { + i.vex.register_specifier = i.op[2].regs; + if (!i.mem_operands) + { + i.rm.mode = 3; + i.rm.regmem = i.op[1].regs->reg_num; + if ((i.op[1].regs->reg_flags & RegRex) != 0) + i.rex |= REX_B; + } + } /* Fill in i.rm.reg or i.rm.regmem field with register operand (if any) based on i.tm.extension_opcode. Again, we must be careful to make sure that segment/control/debug/test/MMX registers are coded into the i.rm.reg field. */ - if (i.reg_operands) + else if (i.reg_operands) { unsigned int op; unsigned int vex_reg = ~0; @@ -5316,6 +5340,7 @@ build_modrm_byte (void) && !operand_type_equal (&i.tm.operand_types[vex_reg], ®ymm)) abort (); + i.vex.register_specifier = i.op[vex_reg].regs; } @@ -8019,7 +8044,7 @@ md_show_usage (stream) ssse3, sse4.1, sse4.2, sse4, nosse, avx, noavx,\n\ vmx, smx, xsave, movbe, ept, aes, pclmul, fma,\n\ clflush, syscall, rdtscp, 3dnow, 3dnowa, sse4a,\n\ - svme, abm, padlock, fma4\n")); + svme, abm, padlock, fma4, lwp\n")); fprintf (stream, _("\ -mtune=CPU optimize for CPU, CPU is one of:\n\ i8086, i186, i286, i386, i486, pentium, pentiumpro,\n\ |