This is an archive of the discontinued LLVM Phabricator instance.

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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;

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llvm/test/MC/AVR/relocations.s

	; RUN: llvm-mc -filetype=obj -triple=avr %s -mattr=avr6 \| llvm-objdump -r - \| FileCheck %s			; RUN: llvm-mc -filetype=obj -triple=avr %s -mattr=avr6 \| llvm-objdump -r - \| FileCheck %s

	; CHECK: RELOCATION RECORDS FOR			; CHECK: RELOCATION RECORDS FOR

	.global bar			.global bar
	bar:			bar:
	jmp bar			jmp bar

	; CHECK: R_AVR_LDI SYMBOL+0x3			; CHECK: R_AVR_LDI SYMBOL+0x3
	ldi r21, SYMBOL+3			ldi r21, SYMBOL+3

				; CHECK: R_AVR_6 SYMBOL+0x4
				ldd r8, Y+SYMBOL+4

	; CHECK-NEXT: R_AVR_6_ADIW FOO			; CHECK-NEXT: R_AVR_6_ADIW FOO
	adiw r24, FOO			adiw r24, FOO

	; CHECK-NEXT: R_AVR_16 BAR+0x2			; CHECK-NEXT: R_AVR_16 BAR+0x2
	lds r8, BAR+2			lds r8, BAR+2

	; CHECK-NEXT: R_AVR_PORT5 foo			; CHECK-NEXT: R_AVR_PORT5 foo
	sbic foo, 1			sbic foo, 1
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This is an archive of the discontinued LLVM Phabricator instance.

[LLVM][AVR] Support for R_AVR_6 fixupClosedPublic

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Diff 264478

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

llvm/test/MC/AVR/relocations.s

[LLVM][AVR] Support for R_AVR_6 fixup
ClosedPublic