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Fix cmpxchg16b instruction for asm blocks. Thanks to wolfwood from the Xomb project for this fix.

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This commit is contained in:
Kelly Wilson
2011-05-05 20:56:46 -06:00
parent 5824fe4da7
commit 5d0f918e9e
1 changed files with 17 additions and 9 deletions
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26
gen/asm-x86-64.h
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@@ -218,7 +218,8 @@ namespace AsmParserx8664
Clb_SizeAX = 0x01,
Clb_SizeDXAX = 0x02,
Clb_EAX = 0x03,
Clb_DXAX_Mask = 0x03,
Clb_DXAX_Mask = 0x103,
Clb_SizeRDXRAX = 0x100,
Clb_Flags = 0x04,
Clb_DI = 0x08,
@@ -314,8 +315,9 @@ namespace AsmParserx8664
Op_cmps,
Op_cmpsd,
Op_cmpsX,
Op_cmpxchg8b,
Op_cmpxchg,
Op_cmpxchg16b,
Op_cmpxchg8b,
Op_cpuid,
Op_enter,
Op_fdisi,
@@ -438,6 +440,7 @@ namespace AsmParserx8664
Mn_iretq,
Mn_lret,
Mn_cmpxchg8b,
Mn_cmpxchg16b,
N_AltMn
} Alternate_Mnemonics;
@@ -449,9 +452,10 @@ namespace AsmParserx8664
"iretw",
"iret",
"iretq",
"lret",
"cmpxchg8b"
};
"lret",
"cmpxchg8b",
"cmpxchg16b"
};
#define mri OprC_MRI
#define mr OprC_MR
@@ -562,8 +566,9 @@ namespace AsmParserx8664
/* Op_cmps */ { mem, mem, 0, 1, Clb_DI|Clb_SI|Clb_Flags },
/* Op_cmpsd */ { 0, 0, 0, 0, Clb_DI|Clb_SI|Clb_Flags, Next_Form, Op_DstSrcImmS },
/* Op_cmpsX */ { 0, 0, 0, 0, Clb_DI|Clb_SI|Clb_Flags },
/* Op_cmpxchg8b */ { D|mem/*64*/,0,0, 0, Clb_SizeDXAX/*32*/|Clb_Flags, Out_Mnemonic, Mn_cmpxchg8b },
/* Op_cmpxchg */ { D|mr, reg, 0, 1, Clb_SizeAX|Clb_Flags },
/* Op_cmpxchg16b */ { D|mem/*128*/,0,0, 0, Clb_SizeRDXRAX/*64*/|Clb_Flags, Out_Mnemonic, Mn_cmpxchg16b },
/* Op_cmpxchg8b */ { D|mem/*64*/,0,0, 0, Clb_SizeDXAX/*32*/|Clb_Flags, Out_Mnemonic, Mn_cmpxchg8b },
/* Op_cpuid */ { 0,0,0 }, // Clobbers eax, ebx, ecx, and edx. Handled specially below.
/* Op_enter */ { imm, imm }, // operands *not* reversed for gas, %% inform gcc of EBP clobber?,
/* Op_fdisi */ { 0,0,0, 0, 0, Out_Mnemonic, Mn_fdisi },
@@ -717,7 +722,6 @@ namespace AsmParserx8664
/*
{ "cdqe", Op_0_DXAX },
{ "cmpsq", Op_cmpsX },
{ "cmpxch16b", Op_cmpxchg16b },
{ "cqo", Op_0_DXAX },
{ "lodsq", Op_lodsX },
{ "movsq", Op_movsX },
@@ -736,9 +740,9 @@ namespace AsmParserx8664
{ "stgi", Op_Flags },
*/
{ "cmpxch16b", Op_cmpxchg8b },
{ "cmpxch8b", Op_cmpxchg8b }, // %% DMD opcode typo?
{ "cmpxchg", Op_cmpxchg },
{ "cmpxchg16b", Op_cmpxchg16b },
{ "cmpxchg8b", Op_cmpxchg8b },
{ "comisd", Op_SrcSrcSSEF },
{ "comiss", Op_SrcSrcSSEF },
{ "cpuid", Op_cpuid },
@@ -2068,6 +2072,10 @@ namespace AsmParserx8664
if ( type_char != 'b' )
asmcode->regs[Reg_EDX] = true;
break;
case Clb_SizeRDXRAX:
asmcode->regs[Reg_RAX] = true;
asmcode->regs[Reg_RDX] = true;
break;
default:
// nothing
break;