; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=riscv32 -mattr=+f -verify-machineinstrs < %s \ ; RUN: | FileCheck -check-prefix=RV32IF %s ; RUN: llc -mtriple=riscv64 -mattr=+f -verify-machineinstrs < %s \ ; RUN: | FileCheck -check-prefix=RV64IF %s ; These tests are each targeted at a particular RISC-V FPU instruction. Most ; other files in this folder exercise LLVM IR instructions that don't directly ; match a RISC-V instruction. define float @fadd_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fadd_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fadd.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fadd_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fadd.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fadd float %a, %b ret float %1 } define float @fsub_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fsub_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fsub.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fsub_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fsub.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fsub float %a, %b ret float %1 } define float @fmul_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fmul_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fmul.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmul_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fmul.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fmul float %a, %b ret float %1 } define float @fdiv_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fdiv_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fdiv.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fdiv_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fdiv.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fdiv float %a, %b ret float %1 } declare float @llvm.sqrt.f32(float) define float @fsqrt_s(float %a) nounwind { ; RV32IF-LABEL: fsqrt_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a0 ; RV32IF-NEXT: fsqrt.s ft0, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fsqrt_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fsqrt.s ft0, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = call float @llvm.sqrt.f32(float %a) ret float %1 } declare float @llvm.copysign.f32(float, float) define float @fsgnj_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fsgnj_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fsgnj.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fsgnj_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fsgnj.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = call float @llvm.copysign.f32(float %a, float %b) ret float %1 } ; This function performs extra work to ensure that ; DAGCombiner::visitBITCAST doesn't replace the fneg with an xor. define i32 @fneg_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fneg_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a0 ; RV32IF-NEXT: fadd.s ft0, ft0, ft0 ; RV32IF-NEXT: fneg.s ft1, ft0 ; RV32IF-NEXT: feq.s a0, ft0, ft1 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fneg_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fadd.s ft0, ft0, ft0 ; RV64IF-NEXT: fneg.s ft1, ft0 ; RV64IF-NEXT: feq.s a0, ft0, ft1 ; RV64IF-NEXT: ret %1 = fadd float %a, %a %2 = fneg float %1 %3 = fcmp oeq float %1, %2 %4 = zext i1 %3 to i32 ret i32 %4 } ; This function performs extra work to ensure that ; DAGCombiner::visitBITCAST doesn't replace the fneg with an xor. define float @fsgnjn_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fsgnjn_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fadd.s ft0, ft1, ft0 ; RV32IF-NEXT: fsgnjn.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fsgnjn_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fadd.s ft0, ft1, ft0 ; RV64IF-NEXT: fsgnjn.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fadd float %a, %b %2 = fneg float %1 %3 = call float @llvm.copysign.f32(float %a, float %2) ret float %3 } declare float @llvm.fabs.f32(float) ; This function performs extra work to ensure that ; DAGCombiner::visitBITCAST doesn't replace the fabs with an and. define float @fabs_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fabs_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fadd.s ft0, ft1, ft0 ; RV32IF-NEXT: fabs.s ft1, ft0 ; RV32IF-NEXT: fadd.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fabs_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fadd.s ft0, ft1, ft0 ; RV64IF-NEXT: fabs.s ft1, ft0 ; RV64IF-NEXT: fadd.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fadd float %a, %b %2 = call float @llvm.fabs.f32(float %1) %3 = fadd float %2, %1 ret float %3 } declare float @llvm.minnum.f32(float, float) define float @fmin_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fmin_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fmin.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmin_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fmin.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = call float @llvm.minnum.f32(float %a, float %b) ret float %1 } declare float @llvm.maxnum.f32(float, float) define float @fmax_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fmax_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fmax.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmax_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fmax.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = call float @llvm.maxnum.f32(float %a, float %b) ret float %1 } define i32 @feq_s(float %a, float %b) nounwind { ; RV32IF-LABEL: feq_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: feq.s a0, ft1, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: feq_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: feq.s a0, ft1, ft0 ; RV64IF-NEXT: ret %1 = fcmp oeq float %a, %b %2 = zext i1 %1 to i32 ret i32 %2 } define i32 @flt_s(float %a, float %b) nounwind { ; RV32IF-LABEL: flt_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: flt.s a0, ft1, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: flt_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: flt.s a0, ft1, ft0 ; RV64IF-NEXT: ret %1 = fcmp olt float %a, %b %2 = zext i1 %1 to i32 ret i32 %2 } define i32 @fle_s(float %a, float %b) nounwind { ; RV32IF-LABEL: fle_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fle.s a0, ft1, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fle_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fle.s a0, ft1, ft0 ; RV64IF-NEXT: ret %1 = fcmp ole float %a, %b %2 = zext i1 %1 to i32 ret i32 %2 } declare float @llvm.fma.f32(float, float, float) define float @fmadd_s(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fmadd_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a2 ; RV32IF-NEXT: fmv.w.x ft1, a1 ; RV32IF-NEXT: fmv.w.x ft2, a0 ; RV32IF-NEXT: fmadd.s ft0, ft2, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmadd_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a2 ; RV64IF-NEXT: fmv.w.x ft1, a1 ; RV64IF-NEXT: fmv.w.x ft2, a0 ; RV64IF-NEXT: fmadd.s ft0, ft2, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = call float @llvm.fma.f32(float %a, float %b, float %c) ret float %1 } define float @fmsub_s(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fmsub_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fmv.w.x ft2, a2 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fmsub.s ft0, ft1, ft0, ft2 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmsub_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fmv.w.x ft2, a2 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fmsub.s ft0, ft1, ft0, ft2 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %c_ = fadd float 0.0, %c ; avoid negation using xor %negc = fsub float -0.0, %c_ %1 = call float @llvm.fma.f32(float %a, float %b, float %negc) ret float %1 } define float @fnmadd_s(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fnmadd_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a2 ; RV32IF-NEXT: fmv.w.x ft2, a0 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fadd.s ft1, ft1, ft3 ; RV32IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fnmadd_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a2 ; RV64IF-NEXT: fmv.w.x ft2, a0 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fadd.s ft1, ft1, ft3 ; RV64IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %a_ = fadd float 0.0, %a %c_ = fadd float 0.0, %c %nega = fsub float -0.0, %a_ %negc = fsub float -0.0, %c_ %1 = call float @llvm.fma.f32(float %nega, float %b, float %negc) ret float %1 } define float @fnmadd_s_2(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fnmadd_s_2: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a0 ; RV32IF-NEXT: fmv.w.x ft1, a2 ; RV32IF-NEXT: fmv.w.x ft2, a1 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fadd.s ft1, ft1, ft3 ; RV32IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fnmadd_s_2: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fmv.w.x ft1, a2 ; RV64IF-NEXT: fmv.w.x ft2, a1 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fadd.s ft1, ft1, ft3 ; RV64IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %b_ = fadd float 0.0, %b %c_ = fadd float 0.0, %c %negb = fsub float -0.0, %b_ %negc = fsub float -0.0, %c_ %1 = call float @llvm.fma.f32(float %a, float %negb, float %negc) ret float %1 } define float @fnmsub_s(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fnmsub_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a2 ; RV32IF-NEXT: fmv.w.x ft1, a1 ; RV32IF-NEXT: fmv.w.x ft2, a0 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fnmsub_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a2 ; RV64IF-NEXT: fmv.w.x ft1, a1 ; RV64IF-NEXT: fmv.w.x ft2, a0 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %a_ = fadd float 0.0, %a %nega = fsub float -0.0, %a_ %1 = call float @llvm.fma.f32(float %nega, float %b, float %c) ret float %1 } define float @fnmsub_s_2(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fnmsub_s_2: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a2 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fmv.w.x ft2, a1 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fnmsub_s_2: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a2 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fmv.w.x ft2, a1 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %b_ = fadd float 0.0, %b %negb = fsub float -0.0, %b_ %1 = call float @llvm.fma.f32(float %a, float %negb, float %c) ret float %1 } define float @fmadd_s_contract(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fmadd_s_contract: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a2 ; RV32IF-NEXT: fmv.w.x ft1, a1 ; RV32IF-NEXT: fmv.w.x ft2, a0 ; RV32IF-NEXT: fmadd.s ft0, ft2, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmadd_s_contract: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a2 ; RV64IF-NEXT: fmv.w.x ft1, a1 ; RV64IF-NEXT: fmv.w.x ft2, a0 ; RV64IF-NEXT: fmadd.s ft0, ft2, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = fmul contract float %a, %b %2 = fadd contract float %1, %c ret float %2 } define float @fmsub_s_contract(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fmsub_s_contract: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fmv.w.x ft2, a2 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fmsub.s ft0, ft1, ft0, ft2 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmsub_s_contract: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fmv.w.x ft2, a2 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fmsub.s ft0, ft1, ft0, ft2 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %c_ = fadd float 0.0, %c ; avoid negation using xor %1 = fmul contract float %a, %b %2 = fsub contract float %1, %c_ ret float %2 } define float @fnmadd_s_contract(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fnmadd_s_contract: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a2 ; RV32IF-NEXT: fmv.w.x ft1, a1 ; RV32IF-NEXT: fmv.w.x ft2, a0 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fadd.s ft1, ft1, ft3 ; RV32IF-NEXT: fadd.s ft0, ft0, ft3 ; RV32IF-NEXT: fnmadd.s ft0, ft2, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fnmadd_s_contract: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a2 ; RV64IF-NEXT: fmv.w.x ft1, a1 ; RV64IF-NEXT: fmv.w.x ft2, a0 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fadd.s ft1, ft1, ft3 ; RV64IF-NEXT: fadd.s ft0, ft0, ft3 ; RV64IF-NEXT: fnmadd.s ft0, ft2, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %a_ = fadd float 0.0, %a ; avoid negation using xor %b_ = fadd float 0.0, %b ; avoid negation using xor %c_ = fadd float 0.0, %c ; avoid negation using xor %1 = fmul contract float %a_, %b_ %2 = fneg float %1 %3 = fsub contract float %2, %c_ ret float %3 } define float @fnmsub_s_contract(float %a, float %b, float %c) nounwind { ; RV32IF-LABEL: fnmsub_s_contract: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a2 ; RV32IF-NEXT: fmv.w.x ft1, a1 ; RV32IF-NEXT: fmv.w.x ft2, a0 ; RV32IF-NEXT: fmv.w.x ft3, zero ; RV32IF-NEXT: fadd.s ft2, ft2, ft3 ; RV32IF-NEXT: fadd.s ft1, ft1, ft3 ; RV32IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fnmsub_s_contract: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a2 ; RV64IF-NEXT: fmv.w.x ft1, a1 ; RV64IF-NEXT: fmv.w.x ft2, a0 ; RV64IF-NEXT: fmv.w.x ft3, zero ; RV64IF-NEXT: fadd.s ft2, ft2, ft3 ; RV64IF-NEXT: fadd.s ft1, ft1, ft3 ; RV64IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %a_ = fadd float 0.0, %a ; avoid negation using xor %b_ = fadd float 0.0, %b ; avoid negation using xor %1 = fmul contract float %a_, %b_ %2 = fsub contract float %c, %1 ret float %2 }