[RISCV] Clear mayRaiseFPException for fclass.d instruction.

We got it right for fclass.s and fclass.h.
2023-03-21 19:48:20 -07:00 · 2023-03-21 19:48:20 -07:00 · c176edc013
commit c176edc013
parent 2023cc2b1b
1 changed files with 1 additions and 0 deletions
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoD.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoD.td
@ -145,6 +145,7 @@ defm FLT_D : FPCmp_rr_m<0b1010001, 0b001, "flt.d", DINX>;
 defm FLE_D : FPCmp_rr_m<0b1010001, 0b000, "fle.d", DINX>;
 }

+let mayRaiseFPException = 0 in
 defm FCLASS_D : FPUnaryOp_r_m<0b1110001, 0b00000, 0b001, XDINX, "fclass.d">,
                Sched<[WriteFClass64, ReadFClass64]>;