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[X86] Add the 0x82 instructions to the disassebmler. They are identical in functionality to the 0x80 opcode instructions, but are not valid in 64-bit mode. 

llvm-svn: 224939
This commit is contained in:
Craig Topper 2014-12-29 16:25:23 +00:00
parent c51b7993b8
commit 874a1966ae
1 changed files with 35 additions and 6 deletions
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41
llvm/lib/Target/X86/X86InstrArithmetic.td
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@ -850,21 +850,21 @@ class BinOpRI8<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
// BinOpRI8_F - Instructions like "cmp reg, imm8".
class BinOpRI8_F<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
SDNode opnode, Format f>
SDPatternOperator opnode, Format f>
: BinOpRI8<opcode, mnemonic, typeinfo, f, (outs),
[(set EFLAGS,
(opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2))]>;
// BinOpRI8_RF - Instructions like "add reg, reg, imm8".
class BinOpRI8_RF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
SDNode opnode, Format f>
SDPatternOperator opnode, Format f>
: BinOpRI8<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
[(set typeinfo.RegClass:$dst, EFLAGS,
(opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2))]>;
// BinOpRI8_RFF - Instructions like "adc reg, reg, imm8".
class BinOpRI8_RFF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
SDNode opnode, Format f>
SDPatternOperator opnode, Format f>
: BinOpRI8<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
[(set typeinfo.RegClass:$dst, EFLAGS,
(opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2,
@ -945,7 +945,7 @@ class BinOpMI8<string mnemonic, X86TypeInfo typeinfo,
// BinOpMI8_RMW - Instructions like "add [mem], imm8".
class BinOpMI8_RMW<string mnemonic, X86TypeInfo typeinfo,
SDNode opnode, Format f>
SDPatternOperator opnode, Format f>
: BinOpMI8<mnemonic, typeinfo, f,
[(store (opnode (load addr:$dst),
typeinfo.Imm8Operator:$src), addr:$dst),
@ -953,7 +953,7 @@ class BinOpMI8_RMW<string mnemonic, X86TypeInfo typeinfo,
// BinOpMI8_RMW_FF - Instructions like "adc [mem], imm8".
class BinOpMI8_RMW_FF<string mnemonic, X86TypeInfo typeinfo,
SDNode opnode, Format f>
SDPatternOperator opnode, Format f>
: BinOpMI8<mnemonic, typeinfo, f,
[(store (opnode (load addr:$dst),
typeinfo.Imm8Operator:$src, EFLAGS), addr:$dst),
@ -961,7 +961,7 @@ class BinOpMI8_RMW_FF<string mnemonic, X86TypeInfo typeinfo,
// BinOpMI8_F - Instructions like "cmp [mem], imm8".
class BinOpMI8_F<string mnemonic, X86TypeInfo typeinfo,
SDNode opnode, Format f>
SDPatternOperator opnode, Format f>
: BinOpMI8<mnemonic, typeinfo, f,
[(set EFLAGS, (opnode (load addr:$dst),
typeinfo.Imm8Operator:$src))]>;
@ -1046,6 +1046,16 @@ multiclass ArithBinOp_RF<bits<8> BaseOpc, bits<8> BaseOpc2, bits<8> BaseOpc4,
def NAME#16mi : BinOpMI_RMW<0x80, mnemonic, Xi16, opnode, MemMRM>;
def NAME#32mi : BinOpMI_RMW<0x80, mnemonic, Xi32, opnode, MemMRM>;
def NAME#64mi32 : BinOpMI_RMW<0x80, mnemonic, Xi64, opnode, MemMRM>;
// These are for the disassembler since 0x82 opcode behaves like 0x80, but
// not in 64-bit mode.
let Predicates = [Not64BitMode], isCodeGenOnly = 1, ForceDisassemble = 1,
hasSideEffects = 0 in {
let Constraints = "$src1 = $dst" in
def NAME#8ri8 : BinOpRI8_RF<0x82, mnemonic, Xi8, null_frag, RegMRM>;
let mayLoad = 1, mayStore = 1 in
def NAME#8mi8 : BinOpMI8_RMW<mnemonic, Xi8, null_frag, MemMRM>;
}
} // Defs = [EFLAGS]
def NAME#8i8 : BinOpAI<BaseOpc4, mnemonic, Xi8 , AL,
@ -1117,6 +1127,16 @@ multiclass ArithBinOp_RFF<bits<8> BaseOpc, bits<8> BaseOpc2, bits<8> BaseOpc4,
def NAME#16mi : BinOpMI_RMW_FF<0x80, mnemonic, Xi16, opnode, MemMRM>;
def NAME#32mi : BinOpMI_RMW_FF<0x80, mnemonic, Xi32, opnode, MemMRM>;
def NAME#64mi32 : BinOpMI_RMW_FF<0x80, mnemonic, Xi64, opnode, MemMRM>;
// These are for the disassembler since 0x82 opcode behaves like 0x80, but
// not in 64-bit mode.
let Predicates = [Not64BitMode], isCodeGenOnly = 1, ForceDisassemble = 1,
hasSideEffects = 0 in {
let Constraints = "$src1 = $dst" in
def NAME#8ri8 : BinOpRI8_RFF<0x82, mnemonic, Xi8, null_frag, RegMRM>;
let mayLoad = 1, mayStore = 1 in
def NAME#8mi8 : BinOpMI8_RMW_FF<mnemonic, Xi8, null_frag, MemMRM>;
}
} // Uses = [EFLAGS], Defs = [EFLAGS]
def NAME#8i8 : BinOpAI_FF<BaseOpc4, mnemonic, Xi8 , AL,
@ -1184,6 +1204,15 @@ multiclass ArithBinOp_F<bits<8> BaseOpc, bits<8> BaseOpc2, bits<8> BaseOpc4,
def NAME#16mi : BinOpMI_F<0x80, mnemonic, Xi16, opnode, MemMRM>;
def NAME#32mi : BinOpMI_F<0x80, mnemonic, Xi32, opnode, MemMRM>;
def NAME#64mi32 : BinOpMI_F<0x80, mnemonic, Xi64, opnode, MemMRM>;
// These are for the disassembler since 0x82 opcode behaves like 0x80, but
// not in 64-bit mode.
let Predicates = [Not64BitMode], isCodeGenOnly = 1, ForceDisassemble = 1,
hasSideEffects = 0 in {
def NAME#8ri8 : BinOpRI8_F<0x82, mnemonic, Xi8, null_frag, RegMRM>;
let mayLoad = 1 in
def NAME#8mi8 : BinOpMI8_F<mnemonic, Xi8, null_frag, MemMRM>;
}
} // Defs = [EFLAGS]
def NAME#8i8 : BinOpAI<BaseOpc4, mnemonic, Xi8 , AL,