-//===-- MipsBaseInfo.h - Top level definitions for MIPS MC --- --*- C++ -*-===//
+//===-- MipsBaseInfo.h - Top level definitions for MIPS MC ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
#ifndef MIPSBASEINFO_H
#define MIPSBASEINFO_H
+#include "MipsFixupKinds.h"
#include "MipsMCTargetDesc.h"
+#include "llvm/MC/MCExpr.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
case Mips::HWR29:
return 29;
case Mips::FP: case Mips::FP_64: case Mips::F30: case Mips::D30_64:
- case Mips::D15:
+ case Mips::D15:
return 30;
case Mips::RA: case Mips::RA_64: case Mips::F31: case Mips::D31_64:
return 31;
default: llvm_unreachable("Unknown register number!");
}
}
+
+inline static std::pair<const MCSymbolRefExpr*, int64_t>
+MipsGetSymAndOffset(const MCFixup &Fixup) {
+ MCFixupKind FixupKind = Fixup.getKind();
+
+ if ((FixupKind < FirstTargetFixupKind) ||
+ (FixupKind >= MCFixupKind(Mips::LastTargetFixupKind)))
+ return std::make_pair((const MCSymbolRefExpr*)0, (int64_t)0);
+
+ const MCExpr *Expr = Fixup.getValue();
+ MCExpr::ExprKind Kind = Expr->getKind();
+
+ if (Kind == MCExpr::Binary) {
+ const MCBinaryExpr *BE = static_cast<const MCBinaryExpr*>(Expr);
+ const MCExpr *LHS = BE->getLHS();
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(BE->getRHS());
+
+ if ((LHS->getKind() != MCExpr::SymbolRef) || !CE)
+ return std::make_pair((const MCSymbolRefExpr*)0, (int64_t)0);
+
+ return std::make_pair(cast<MCSymbolRefExpr>(LHS), CE->getValue());
+ }
+
+ if (Kind != MCExpr::SymbolRef)
+ return std::make_pair((const MCSymbolRefExpr*)0, (int64_t)0);
+
+ return std::make_pair(cast<MCSymbolRefExpr>(Expr), 0);
+}
}
#endif