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move fcompi alias to .td file and zap some useless code.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117823 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-10-30 18:22:53 +00:00
parent 6f96b0899b
commit b3c417845d
2 changed files with 1 additions and 11 deletions
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11
lib/Target/X86/AsmParser/X86AsmParser.cpp
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@ -622,8 +622,6 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
// FIXME: Hack to recognize some aliases.
StringRef PatchedName = StringSwitch<StringRef>(Name)
.Case("repe", "rep")
.Case("repz", "rep")
.Case("push", Is64Bit ? "pushq" : "pushl")
.Case("pop", Is64Bit ? "popq" : "popl")
.Case("pushf", Is64Bit ? "pushfq" : "pushfl")
@ -921,15 +919,6 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
NameLoc, NameLoc));
}
// The assembler accepts this instruction with no operand as a synonym for an
// instruction taking %st(1),%st(0). e.g. "fcompi" -> "fcompi %st(1),st(0)".
if (Name == "fcompi" && Operands.size() == 1) {
Operands.push_back(X86Operand::CreateReg(MatchRegisterName("st(1)"),
NameLoc, NameLoc));
Operands.push_back(X86Operand::CreateReg(MatchRegisterName("st(0)"),
NameLoc, NameLoc));
}
// The assembler accepts these instructions with two few operands as a synonym
// for taking %st(1),%st(0) or X, %st(0).
if ((Name == "fcomi" || Name == "fucomi" || Name == "fucompi" ||

1
lib/Target/X86/X86InstrInfo.td
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@ -1293,6 +1293,7 @@ def : MnemonicAlias<"fcmova", "fcmovnbe">;
def : MnemonicAlias<"fcmovnae", "fcmovb">;
def : MnemonicAlias<"fcmovna", "fcmovbe">;
def : MnemonicAlias<"fcmovae", "fcmovnb">;
def : MnemonicAlias<"fcompi", "fcomip">;
def : MnemonicAlias<"fildq", "fildll">;
def : MnemonicAlias<"fldcww", "fldcw">;
def : MnemonicAlias<"fnstcww", "fnstcw">;