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Differential D78721 Diff 264478 llvm/lib/Target/AVR/MCTargetDesc/AVRAsmBackend.cpp

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llvm/lib/Target/AVR/MCTargetDesc/AVRAsmBackend.cpp

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static void fixup_13_pcrel(unsigned Size, const MCFixup &Fixup, uint64_t &Value, static void fixup_13_pcrel(unsigned Size, const MCFixup &Fixup, uint64_t &Value,
MCContext *Ctx = nullptr) { MCContext *Ctx = nullptr) {
adjustRelativeBranch(Size, Fixup, Value, Ctx); adjustRelativeBranch(Size, Fixup, Value, Ctx);
// Because the value may be negative, we must mask out the sign bits // Because the value may be negative, we must mask out the sign bits
Value &= 0xfff; Value &= 0xfff;
} }
/// 6-bit fixup for the immediate operand of the STD/LDD family of
/// instructions.
///
/// Resolves to:
/// 10q0 qq10 0000 1qqq
static void fixup_6(const MCFixup &Fixup, uint64_t &Value,
MCContext *Ctx = nullptr) {
unsigned_width(6, Value, std::string("immediate"), Fixup, Ctx);
Value = ((Value & 0x20) << 8) | ((Value & 0x18) << 7) | (Value & 0x07);
}
/// 6-bit fixup for the immediate operand of the ADIW family of /// 6-bit fixup for the immediate operand of the ADIW family of
/// instructions. /// instructions.
/// ///
/// Resolves to: /// Resolves to:
/// 0000 0000 kk00 kkkk /// 0000 0000 kk00 kkkk
static void fixup_6_adiw(const MCFixup &Fixup, uint64_t &Value, static void fixup_6_adiw(const MCFixup &Fixup, uint64_t &Value,
MCContext *Ctx = nullptr) { MCContext *Ctx = nullptr) {
unsigned_width(6, Value, std::string("immediate"), Fixup, Ctx); unsigned_width(6, Value, std::string("immediate"), Fixup, Ctx);
▲ Show 20 Lines • Show All 179 Lines • ▼ Show 20 Lines case AVR::fixup_16:
break; break;
case AVR::fixup_16_pm: case AVR::fixup_16_pm:
Value >>= 1; // Flash addresses are always shifted. Value >>= 1; // Flash addresses are always shifted.
adjust::unsigned_width(16, Value, std::string("port number"), Fixup, Ctx); adjust::unsigned_width(16, Value, std::string("port number"), Fixup, Ctx);
Value &= 0xffff; Value &= 0xffff;
break; break;
case AVR::fixup_6:
adjust::fixup_6(Fixup, Value, Ctx);
break;
case AVR::fixup_6_adiw: case AVR::fixup_6_adiw:
adjust::fixup_6_adiw(Fixup, Value, Ctx); adjust::fixup_6_adiw(Fixup, Value, Ctx);
break; break;
case AVR::fixup_port5: case AVR::fixup_port5:
adjust::fixup_port5(Fixup, Value, Ctx); adjust::fixup_port5(Fixup, Value, Ctx);
break; break;
▲ Show 20 Lines • Show All 150 Lines • Show Last 20 Lines