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Move printing of DEBUG_VALUE comments to target-independent place.

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There is probably a more elegant way to do this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100573 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2010-04-06 22:21:07 +00:00
parent d0910c4534
commit 0a580d30e0
2 changed files with 59 additions and 70 deletions
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61
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@@ -434,7 +434,59 @@ static void EmitKill(const MachineInstr *MI, AsmPrinter &AP) {
AP.OutStreamer.AddBlankLine();
}
static void EmitDebugValueComment(const MachineInstr *MI, AsmPrinter &AP) {
char buf[100];
std::string Str = "\t";
Str += AP.MAI->getCommentString();
Str += "DEBUG_VALUE: ";
// This code handles only the 3-operand target-independent form.
assert(MI->getNumOperands() == 3);
// cast away const; DIetc do not take const operands for some reason.
DIVariable V((MDNode*)(MI->getOperand(2).getMetadata()));
Str += V.getName();
Str += " <- ";
// Register or immediate value. Register 0 means undef.
if (MI->getOperand(0).isFPImm()) {
APFloat APF = APFloat(MI->getOperand(0).getFPImm()->getValueAPF());
if (MI->getOperand(0).getFPImm()->getType()->isFloatTy()) {
sprintf(buf, "%e", APF.convertToFloat());
Str += buf;
} else if (MI->getOperand(0).getFPImm()->getType()->isDoubleTy()) {
sprintf(buf, "%e", APF.convertToDouble());
Str += buf;
} else {
// There is no good way to print long double. Convert a copy to
// double. Ah well, it's only a comment.
bool ignored;
APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
&ignored);
Str += "(long double) ";
sprintf(buf, "%e", APF.convertToDouble());
Str += buf;
}
} else if (MI->getOperand(0).isImm()) {
sprintf(buf, "%lld", MI->getOperand(0).getImm());
Str += buf;
} else if (MI->getOperand(0).isReg()) {
if (MI->getOperand(0).getReg() == 0) {
// Suppress offset, it is not meaningful here.
Str += "undef";
// NOTE: Want this comment at start of line, don't emit with AddComment.
AP.OutStreamer.EmitRawText(Twine(Str));
return;
}
Str += AP.TM.getRegisterInfo()->getName(MI->getOperand(0).getReg());
} else
llvm_unreachable("Unknown operand type");
Str += '+';
sprintf(buf, "%lld", MI->getOperand(1).getImm());
Str += buf;
// NOTE: Want this comment at start of line, don't emit with AddComment.
AP.OutStreamer.EmitRawText(Twine(Str));
}
/// EmitFunctionBody - This method emits the body and trailer for a
/// function.
@@ -473,6 +525,9 @@ void AsmPrinter::EmitFunctionBody() {
case TargetOpcode::INLINEASM:
EmitInlineAsm(II);
break;
case TargetOpcode::DBG_VALUE:
if (isVerbose()) EmitDebugValueComment(II, *this);
break;
case TargetOpcode::IMPLICIT_DEF:
if (isVerbose()) EmitImplicitDef(II, *this);
break;
@@ -1236,7 +1291,7 @@ static void EmitGlobalConstantFP(const ConstantFP *CFP, unsigned AddrSpace,
if (CFP->getType()->isX86_FP80Ty()) {
// all long double variants are printed as hex
// api needed to prevent premature destruction
// API needed to prevent premature destruction
APInt API = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = API.getRawData();
if (AP.isVerbose()) {
@@ -1266,8 +1321,8 @@ static void EmitGlobalConstantFP(const ConstantFP *CFP, unsigned AddrSpace,
assert(CFP->getType()->isPPC_FP128Ty() &&
"Floating point constant type not handled");
// All long double variants are printed as hex api needed to prevent
// premature destruction.
// All long double variants are printed as hex
// API needed to prevent premature destruction.
APInt API = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = API.getRawData();
if (AP.TM.getTargetData()->isBigEndian()) {