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Minor refactoring, no functionality change.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19753 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-22 17:40:38 +00:00
parent 741c118230
commit 5765dba5ce
1 changed files with 19 additions and 14 deletions
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33
utils/TableGen/AsmWriterEmitter.cpp
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@ -53,8 +53,9 @@ namespace {
struct AsmWriterInst {
std::vector<AsmWriterOperand> Operands;
const CodeGenInstruction *CGI;
void ParseAsmString(const CodeGenInstruction &CGI, unsigned Variant);
AsmWriterInst(const CodeGenInstruction &CGI, unsigned Variant);
void EmitCode(std::ostream &OS) const {
for (unsigned i = 0, e = Operands.size(); i != e; ++i)
Operands[i].EmitCode(OS);
@ -84,8 +85,8 @@ void AsmWriterOperand::EmitCode(std::ostream &OS) const {
/// ParseAsmString - Parse the specified Instruction's AsmString into this
/// AsmWriterInst.
///
void AsmWriterInst::ParseAsmString(const CodeGenInstruction &CGI,
unsigned Variant) {
AsmWriterInst::AsmWriterInst(const CodeGenInstruction &CGI, unsigned Variant) {
this->CGI = &CGI;
bool inVariant = false; // True if we are inside a {.|.|.} region.
const std::string &AsmString = CGI.AsmString;
@ -152,10 +153,11 @@ void AsmWriterInst::ParseAsmString(const CodeGenInstruction &CGI,
throw "Stray '$' in '" + CGI.Name + "' asm string, maybe you want $$?";
unsigned OpNo = CGI.getOperandNamed(VarName);
CodeGenInstruction::OperandInfo OpInfo = CGI.OperandList[OpNo];
// If this is a two-address instruction and we are not accessing the
// 0th operand, remove an operand.
unsigned MIOp = CGI.OperandList[OpNo].MIOperandNo;
unsigned MIOp = OpInfo.MIOperandNo;
if (CGI.isTwoAddress && MIOp != 0) {
if (MIOp == 1)
throw "Should refer to operand #0 instead of #1 for two-address"
@ -163,8 +165,8 @@ void AsmWriterInst::ParseAsmString(const CodeGenInstruction &CGI,
--MIOp;
}
Operands.push_back(AsmWriterOperand(CGI.OperandList[OpNo].PrinterMethodName,
MIOp, CGI.OperandList[OpNo].Ty));
Operands.push_back(AsmWriterOperand(OpInfo.PrinterMethodName,
MIOp, OpInfo.Ty));
LastEmitted = VarEnd;
}
}
@ -193,17 +195,20 @@ void AsmWriterEmitter::run(std::ostream &O) {
std::string Namespace = Target.inst_begin()->second.Namespace;
std::vector<AsmWriterInst> Instructions;
for (CodeGenTarget::inst_iterator I = Target.inst_begin(),
E = Target.inst_end(); I != E; ++I)
if (!I->second.AsmString.empty()) {
O << " case " << Namespace << "::" << I->first << ": ";
AsmWriterInst AWI;
AWI.ParseAsmString(I->second, Variant);
AWI.EmitCode(O);
O << " break;\n";
}
if (!I->second.AsmString.empty())
Instructions.push_back(AsmWriterInst(I->second, Variant));
for (unsigned i = 0, e = Instructions.size(); i != e; ++i) {
O << " case " << Namespace << "::"
<< Instructions[i].CGI->Name << ": ";
Instructions[i].EmitCode(O);
O << " break;\n";
}
O << " }\n"
" return true;\n"
"}\n";