class FMA3<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag>pattern, InstrItinClass itin = NoItinerary>
: I<o, F, outs, ins, asm, pattern, itin>, T8,
- OpSize, VEX_4V, Requires<[HasFMA]>;
+ OpSize, VEX_4V, FMASC, Requires<[HasFMA]>;
// FMA4 Instruction Templates
class FMA4<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag>pattern, InstrItinClass itin = NoItinerary>
: Ii8<o, F, outs, ins, asm, pattern, itin>, TA,
- OpSize, VEX_4V, VEX_I8IMM, Requires<[HasFMA4]>;
+ OpSize, VEX_4V, VEX_I8IMM, FMASC, Requires<[HasFMA4]>;
// XOP 2, 3 and 4 Operand Instruction Template
class IXOP<bits<8> o, Format F, dag outs, dag ins, string asm,
defm WriteFDiv : X86SchedWritePair; // Floating point division.
defm WriteFSqrt : X86SchedWritePair; // Floating point square root.
defm WriteFRcp : X86SchedWritePair; // Floating point reciprocal.
+defm WriteFMA : X86SchedWritePair; // Fused Multiply Add.
+
+// FMA Scheduling helper class.
+class FMASC { X86FoldableSchedWrite Sched = WriteFAdd; }
// Vector integer operations.
defm WriteVecALU : X86SchedWritePair; // Vector integer ALU op, no logicals.