class Immediate<ValueType vt, code pred, SDNodeXForm xform, string asmop>
: PatLeaf<(vt imm), pred, xform>, Operand<vt> {
let PrintMethod = "print"##asmop##"Operand";
+ let DecoderMethod = "decode"##asmop##"Operand";
let ParserMatchClass = !cast<AsmOperandClass>(asmop);
}
+// Constructs an asm operand for a PC-relative address. SIZE says how
+// many bits there are.
+class PCRelAsmOperand<string size> : ImmediateAsmOperand<"PCRel"##size> {
+ let PredicateMethod = "isImm";
+ let ParserMethod = "parsePCRel"##size;
+}
+
+// Constructs an operand for a PC-relative address with address type VT.
+// ASMOP is the associated asm operand.
+class PCRelOperand<ValueType vt, AsmOperandClass asmop> : Operand<vt> {
+ let PrintMethod = "printPCRelOperand";
+ let ParserMatchClass = asmop;
+}
+
// Constructs both a DAG pattern and instruction operand for a PC-relative
-// address with address size VT. SELF is the name of the operand.
-class PCRelAddress<ValueType vt, string self>
+// address with address size VT. SELF is the name of the operand and
+// ASMOP is the associated asm operand.
+class PCRelAddress<ValueType vt, string self, AsmOperandClass asmop>
: ComplexPattern<vt, 1, "selectPCRelAddress", [z_pcrel_wrapper]>,
- Operand<vt> {
+ PCRelOperand<vt, asmop> {
let MIOperandInfo = (ops !cast<Operand>(self));
}
}
// Constructs both a DAG pattern and instruction operand for an addressing mode.
-// The mode is selected by custom code in select<TYPE><DISPSIZE><SUFFIX>()
-// and encoded by custom code in get<FORMAT><DISPSIZE>Encoding().
+// The mode is selected by custom code in select<TYPE><DISPSIZE><SUFFIX>(),
+// encoded by custom code in get<FORMAT><DISPSIZE>Encoding() and decoded
+// by custom code in decode<TYPE><BITSIZE>Disp<DISPSIZE>Operand().
// The address registers have BITSIZE bits and displacements have
// DISPSIZE bits. NUMOPS is the number of operands that make up an
// address and OPERANDS lists the types of those operands using (ops ...).
Operand<!cast<ValueType>("i"##bitsize)> {
let PrintMethod = "print"##format##"Operand";
let EncoderMethod = "get"##format##dispsize##"Encoding";
+ let DecoderMethod = "decode"##format##bitsize##"Disp"##dispsize##"Operand";
let MIOperandInfo = operands;
let ParserMatchClass =
!cast<AddressAsmOperand>(format##bitsize##"Disp"##dispsize);
// Symbolic address operands
//===----------------------------------------------------------------------===//
+// PC-relative asm operands.
+def PCRel16 : PCRelAsmOperand<"16">;
+def PCRel32 : PCRelAsmOperand<"32">;
+
// PC-relative offsets of a basic block. The offset is sign-extended
// and multiplied by 2.
-def brtarget16 : Operand<OtherVT> {
+def brtarget16 : PCRelOperand<OtherVT, PCRel16> {
let EncoderMethod = "getPC16DBLEncoding";
+ let DecoderMethod = "decodePC16DBLOperand";
}
-def brtarget32 : Operand<OtherVT> {
+def brtarget32 : PCRelOperand<OtherVT, PCRel32> {
let EncoderMethod = "getPC32DBLEncoding";
+ let DecoderMethod = "decodePC32DBLOperand";
}
// A PC-relative offset of a global value. The offset is sign-extended
// and multiplied by 2.
-def pcrel32 : PCRelAddress<i64, "pcrel32"> {
+def pcrel32 : PCRelAddress<i64, "pcrel32", PCRel32> {
let EncoderMethod = "getPC32DBLEncoding";
+ let DecoderMethod = "decodePC32DBLOperand";
}
// A PC-relative offset of a global value when the value is used as a
// call target. The offset is sign-extended and multiplied by 2.
-def pcrel16call : PCRelAddress<i64, "pcrel16call"> {
+def pcrel16call : PCRelAddress<i64, "pcrel16call", PCRel16> {
let PrintMethod = "printCallOperand";
let EncoderMethod = "getPLT16DBLEncoding";
+ let DecoderMethod = "decodePC16DBLOperand";
}
-def pcrel32call : PCRelAddress<i64, "pcrel32call"> {
+def pcrel32call : PCRelAddress<i64, "pcrel32call", PCRel32> {
let PrintMethod = "printCallOperand";
let EncoderMethod = "getPLT32DBLEncoding";
+ let DecoderMethod = "decodePC32DBLOperand";
}
//===----------------------------------------------------------------------===//