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use our fancy new MnemonicAlias mechanism to remove a bunch of hacks

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from X86AsmParser.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117952 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-11-01 21:06:34 +00:00
parent 40a5eb18b0
commit 99f535242c
2 changed files with 16 additions and 51 deletions
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48
lib/Target/X86/AsmParser/X86AsmParser.cpp
View File

@ -969,14 +969,6 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
NameLoc);
}
// call foo is not ambiguous with callw.
if (Name == "call" && Operands.size() == 2) {
const char *NewName = Is64Bit ? "callq" : "calll";
delete Operands[0];
Operands[0] = X86Operand::CreateToken(NewName, NameLoc);
Name = NewName;
}
// movsd -> movsl (when no operands are specified).
if (Name == "movsd" && Operands.size() == 1) {
delete Operands[0];
@ -1009,46 +1001,6 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
Operands.push_back(X86Operand::CreateImm(A, NameLoc, NameLoc));
}
// "lgdtl" is not ambiguous 32-bit mode and is the same as "lgdt".
// "lgdtq" is not ambiguous 64-bit mode and is the same as "lgdt".
if ((Name == "lgdtl" && Is64Bit == false) ||
(Name == "lgdtq" && Is64Bit == true)) {
const char *NewName = "lgdt";
delete Operands[0];
Operands[0] = X86Operand::CreateToken(NewName, NameLoc);
Name = NewName;
}
// "lidtl" is not ambiguous 32-bit mode and is the same as "lidt".
// "lidtq" is not ambiguous 64-bit mode and is the same as "lidt".
if ((Name == "lidtl" && Is64Bit == false) ||
(Name == "lidtq" && Is64Bit == true)) {
const char *NewName = "lidt";
delete Operands[0];
Operands[0] = X86Operand::CreateToken(NewName, NameLoc);
Name = NewName;
}
// "sgdtl" is not ambiguous 32-bit mode and is the same as "sgdt".
// "sgdtq" is not ambiguous 64-bit mode and is the same as "sgdt".
if ((Name == "sgdtl" && Is64Bit == false) ||
(Name == "sgdtq" && Is64Bit == true)) {
const char *NewName = "sgdt";
delete Operands[0];
Operands[0] = X86Operand::CreateToken(NewName, NameLoc);
Name = NewName;
}
// "sidtl" is not ambiguous 32-bit mode and is the same as "sidt".
// "sidtq" is not ambiguous 64-bit mode and is the same as "sidt".
if ((Name == "sidtl" && Is64Bit == false) ||
(Name == "sidtq" && Is64Bit == true)) {
const char *NewName = "sidt";
delete Operands[0];
Operands[0] = X86Operand::CreateToken(NewName, NameLoc);
Name = NewName;
}
return false;
}

19
lib/Target/X86/X86InstrInfo.td
View File

@ -1306,10 +1306,10 @@ def : InstAlias<(outs GR64:$dst), (ins GR16:$src),
(MOVZX64rr16_Q GR64:$dst, GR16:$src)>;
// Note: No GR32->GR64 movzx form.
// TODO: lidtl/lidtq can be opcode aliases, perhaps others.
def : MnemonicAlias<"iret", "iretl">;
def : MnemonicAlias<"sysret", "sysretl">;
def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
def : MnemonicAlias<"cbw", "cbtw">;
def : MnemonicAlias<"cwd", "cwtd">;
def : MnemonicAlias<"cdq", "cltd">;
@ -1351,6 +1351,19 @@ def : MnemonicAlias<"smovq", "movsq">;
def : MnemonicAlias<"ud2a", "ud2">;
def : MnemonicAlias<"verrw", "verr">;
// System instruction aliases.
def : MnemonicAlias<"iret", "iretl">;
def : MnemonicAlias<"sysret", "sysretl">;
def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
// Floating point stack aliases.
def : MnemonicAlias<"fcmovz", "fcmove">;