[PATCH] D139105: [RISCV] Add correct predicate over FMV instructions

[Konstantin Vladimirov via Phabricator via llvm-commits]

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Restricts FMV usage for subtargets without 'f' extension.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139105

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoF.td


Index: llvm/lib/Target/RISCV/RISCVInstrInfoF.td
===================================================================
--- llvm/lib/Target/RISCV/RISCVInstrInfoF.td
+++ llvm/lib/Target/RISCV/RISCVInstrInfoF.td
@@ -372,7 +372,7 @@
                  Sched<[WriteFCvtF32ToI32, ReadFCvtF32ToI32]>;
 defm           : FPUnaryOpDynFrmAlias_m<FCVT_WU_S, "fcvt.wu.s", XFINX>;
 
-let mayRaiseFPException = 0 in
+let Predicates = [HasStdExtF], mayRaiseFPException = 0 in
 def FMV_X_W : FPUnaryOp_r<0b1110000, 0b00000, 0b000, GPR, FPR32, "fmv.x.w">,
               Sched<[WriteFMovF32ToI32, ReadFMovF32ToI32]>;
 
@@ -394,7 +394,7 @@
                  Sched<[WriteFCvtI32ToF32, ReadFCvtI32ToF32]>;
 defm           : FPUnaryOpDynFrmAlias_m<FCVT_S_WU, "fcvt.s.wu", FXINX>;
 
-let mayRaiseFPException = 0 in
+let Predicates = [HasStdExtF], mayRaiseFPException = 0 in
 def FMV_W_X : FPUnaryOp_r<0b1111000, 0b00000, 0b000, FPR32, GPR, "fmv.w.x">,
               Sched<[WriteFMovI32ToF32, ReadFMovI32ToF32]>;
 


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