xref: /llvm-project/llvm/test/CodeGen/RISCV/float-maximum-minimum.ll (revision 5a08acc1e7874a6cb4b273988b83e587e6fea605)

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -mattr=+f \
; RUN:   -verify-machineinstrs -target-abi=ilp32f \
; RUN:   | FileCheck -check-prefix=RV32IF %s
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -mattr=+zfinx \
; RUN:   -verify-machineinstrs -target-abi=ilp32 \
; RUN:   | FileCheck -check-prefix=RV32IZFINX %s
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -mattr=+d \
; RUN:   -verify-machineinstrs -target-abi=ilp32f \
; RUN:   | FileCheck -check-prefix=RV32IF %s
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 \
; RUN:   -verify-machineinstrs -target-abi=ilp32 \
; RUN:   | FileCheck -check-prefix=RV32I %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -mattr=+f \
; RUN:   -verify-machineinstrs -target-abi=lp64f \
; RUN:   | FileCheck -check-prefix=RV64IF %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -mattr=+zfinx \
; RUN:   -verify-machineinstrs -target-abi=lp64 \
; RUN:   | FileCheck -check-prefix=RV64IZFINX %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -mattr=+d \
; RUN:   -verify-machineinstrs -target-abi=lp64d \
; RUN:   | FileCheck -check-prefix=RV64IF %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 \
; RUN:   -verify-machineinstrs -target-abi=lp64 \
; RUN:   | FileCheck -check-prefix=RV64I %s

declare float @llvm.minimum.f32(float, float)

define float @fminimum_f32(float %a, float %b) nounwind {
; RV32IF-LABEL: fminimum_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    feq.s a0, fa0, fa0
; RV32IF-NEXT:    fmv.s fa5, fa1
; RV32IF-NEXT:    beqz a0, .LBB0_3
; RV32IF-NEXT:  # %bb.1:
; RV32IF-NEXT:    feq.s a0, fa1, fa1
; RV32IF-NEXT:    beqz a0, .LBB0_4
; RV32IF-NEXT:  .LBB0_2:
; RV32IF-NEXT:    fmin.s fa0, fa0, fa5
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB0_3:
; RV32IF-NEXT:    fmv.s fa5, fa0
; RV32IF-NEXT:    feq.s a0, fa1, fa1
; RV32IF-NEXT:    bnez a0, .LBB0_2
; RV32IF-NEXT:  .LBB0_4:
; RV32IF-NEXT:    fmin.s fa0, fa1, fa5
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fminimum_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    feq.s a3, a0, a0
; RV32IZFINX-NEXT:    mv a2, a1
; RV32IZFINX-NEXT:    beqz a3, .LBB0_3
; RV32IZFINX-NEXT:  # %bb.1:
; RV32IZFINX-NEXT:    feq.s a3, a1, a1
; RV32IZFINX-NEXT:    beqz a3, .LBB0_4
; RV32IZFINX-NEXT:  .LBB0_2:
; RV32IZFINX-NEXT:    fmin.s a0, a0, a2
; RV32IZFINX-NEXT:    ret
; RV32IZFINX-NEXT:  .LBB0_3:
; RV32IZFINX-NEXT:    mv a2, a0
; RV32IZFINX-NEXT:    feq.s a3, a1, a1
; RV32IZFINX-NEXT:    bnez a3, .LBB0_2
; RV32IZFINX-NEXT:  .LBB0_4:
; RV32IZFINX-NEXT:    fmin.s a0, a1, a2
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fminimum_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    call fminimumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fminimum_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    feq.s a0, fa0, fa0
; RV64IF-NEXT:    fmv.s fa5, fa1
; RV64IF-NEXT:    beqz a0, .LBB0_3
; RV64IF-NEXT:  # %bb.1:
; RV64IF-NEXT:    feq.s a0, fa1, fa1
; RV64IF-NEXT:    beqz a0, .LBB0_4
; RV64IF-NEXT:  .LBB0_2:
; RV64IF-NEXT:    fmin.s fa0, fa0, fa5
; RV64IF-NEXT:    ret
; RV64IF-NEXT:  .LBB0_3:
; RV64IF-NEXT:    fmv.s fa5, fa0
; RV64IF-NEXT:    feq.s a0, fa1, fa1
; RV64IF-NEXT:    bnez a0, .LBB0_2
; RV64IF-NEXT:  .LBB0_4:
; RV64IF-NEXT:    fmin.s fa0, fa1, fa5
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fminimum_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    feq.s a3, a0, a0
; RV64IZFINX-NEXT:    mv a2, a1
; RV64IZFINX-NEXT:    beqz a3, .LBB0_3
; RV64IZFINX-NEXT:  # %bb.1:
; RV64IZFINX-NEXT:    feq.s a3, a1, a1
; RV64IZFINX-NEXT:    beqz a3, .LBB0_4
; RV64IZFINX-NEXT:  .LBB0_2:
; RV64IZFINX-NEXT:    fmin.s a0, a0, a2
; RV64IZFINX-NEXT:    ret
; RV64IZFINX-NEXT:  .LBB0_3:
; RV64IZFINX-NEXT:    mv a2, a0
; RV64IZFINX-NEXT:    feq.s a3, a1, a1
; RV64IZFINX-NEXT:    bnez a3, .LBB0_2
; RV64IZFINX-NEXT:  .LBB0_4:
; RV64IZFINX-NEXT:    fmin.s a0, a1, a2
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fminimum_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -16
; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    call fminimumf
; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 16
; RV64I-NEXT:    ret
  %1 = call float @llvm.minimum.f32(float %a, float %b)
  ret float %1
}

declare float @llvm.maximum.f32(float, float)

define float @fmaximum_f32(float %a, float %b) nounwind {
; RV32IF-LABEL: fmaximum_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    feq.s a0, fa0, fa0
; RV32IF-NEXT:    fmv.s fa5, fa1
; RV32IF-NEXT:    beqz a0, .LBB1_3
; RV32IF-NEXT:  # %bb.1:
; RV32IF-NEXT:    feq.s a0, fa1, fa1
; RV32IF-NEXT:    beqz a0, .LBB1_4
; RV32IF-NEXT:  .LBB1_2:
; RV32IF-NEXT:    fmax.s fa0, fa0, fa5
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB1_3:
; RV32IF-NEXT:    fmv.s fa5, fa0
; RV32IF-NEXT:    feq.s a0, fa1, fa1
; RV32IF-NEXT:    bnez a0, .LBB1_2
; RV32IF-NEXT:  .LBB1_4:
; RV32IF-NEXT:    fmax.s fa0, fa1, fa5
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fmaximum_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    feq.s a3, a0, a0
; RV32IZFINX-NEXT:    mv a2, a1
; RV32IZFINX-NEXT:    beqz a3, .LBB1_3
; RV32IZFINX-NEXT:  # %bb.1:
; RV32IZFINX-NEXT:    feq.s a3, a1, a1
; RV32IZFINX-NEXT:    beqz a3, .LBB1_4
; RV32IZFINX-NEXT:  .LBB1_2:
; RV32IZFINX-NEXT:    fmax.s a0, a0, a2
; RV32IZFINX-NEXT:    ret
; RV32IZFINX-NEXT:  .LBB1_3:
; RV32IZFINX-NEXT:    mv a2, a0
; RV32IZFINX-NEXT:    feq.s a3, a1, a1
; RV32IZFINX-NEXT:    bnez a3, .LBB1_2
; RV32IZFINX-NEXT:  .LBB1_4:
; RV32IZFINX-NEXT:    fmax.s a0, a1, a2
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fmaximum_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    call fmaximumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fmaximum_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    feq.s a0, fa0, fa0
; RV64IF-NEXT:    fmv.s fa5, fa1
; RV64IF-NEXT:    beqz a0, .LBB1_3
; RV64IF-NEXT:  # %bb.1:
; RV64IF-NEXT:    feq.s a0, fa1, fa1
; RV64IF-NEXT:    beqz a0, .LBB1_4
; RV64IF-NEXT:  .LBB1_2:
; RV64IF-NEXT:    fmax.s fa0, fa0, fa5
; RV64IF-NEXT:    ret
; RV64IF-NEXT:  .LBB1_3:
; RV64IF-NEXT:    fmv.s fa5, fa0
; RV64IF-NEXT:    feq.s a0, fa1, fa1
; RV64IF-NEXT:    bnez a0, .LBB1_2
; RV64IF-NEXT:  .LBB1_4:
; RV64IF-NEXT:    fmax.s fa0, fa1, fa5
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fmaximum_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    feq.s a3, a0, a0
; RV64IZFINX-NEXT:    mv a2, a1
; RV64IZFINX-NEXT:    beqz a3, .LBB1_3
; RV64IZFINX-NEXT:  # %bb.1:
; RV64IZFINX-NEXT:    feq.s a3, a1, a1
; RV64IZFINX-NEXT:    beqz a3, .LBB1_4
; RV64IZFINX-NEXT:  .LBB1_2:
; RV64IZFINX-NEXT:    fmax.s a0, a0, a2
; RV64IZFINX-NEXT:    ret
; RV64IZFINX-NEXT:  .LBB1_3:
; RV64IZFINX-NEXT:    mv a2, a0
; RV64IZFINX-NEXT:    feq.s a3, a1, a1
; RV64IZFINX-NEXT:    bnez a3, .LBB1_2
; RV64IZFINX-NEXT:  .LBB1_4:
; RV64IZFINX-NEXT:    fmax.s a0, a1, a2
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fmaximum_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -16
; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    call fmaximumf
; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 16
; RV64I-NEXT:    ret
  %1 = call float @llvm.maximum.f32(float %a, float %b)
  ret float %1
}

define float @fminimum_nnan_f32(float %a, float %b) nounwind {
; RV32IF-LABEL: fminimum_nnan_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    fmin.s fa0, fa0, fa1
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fminimum_nnan_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    fmin.s a0, a0, a1
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fminimum_nnan_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    call fminimumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fminimum_nnan_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    fmin.s fa0, fa0, fa1
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fminimum_nnan_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    fmin.s a0, a0, a1
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fminimum_nnan_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -16
; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    call fminimumf
; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 16
; RV64I-NEXT:    ret
  %1 = call nnan float @llvm.minimum.f32(float %a, float %b)
  ret float %1
}

define float @fmaximum_nnan_f32(float %a, float %b) nounwind {
; RV32IF-LABEL: fmaximum_nnan_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    fmax.s fa0, fa0, fa1
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fmaximum_nnan_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    fmax.s a0, a0, a1
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fmaximum_nnan_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    call fmaximumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fmaximum_nnan_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    fmax.s fa0, fa0, fa1
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fmaximum_nnan_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    fmax.s a0, a0, a1
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fmaximum_nnan_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -16
; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    call fmaximumf
; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 16
; RV64I-NEXT:    ret
  %1 = call nnan float @llvm.maximum.f32(float %a, float %b)
  ret float %1
}

define float @fminimum_nnan_attr_f32(float %a, float %b) nounwind "no-nans-fp-math"="true" {
; RV32IF-LABEL: fminimum_nnan_attr_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    fmin.s fa0, fa0, fa1
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fminimum_nnan_attr_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    fmin.s a0, a0, a1
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fminimum_nnan_attr_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    call fminimumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fminimum_nnan_attr_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    fmin.s fa0, fa0, fa1
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fminimum_nnan_attr_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    fmin.s a0, a0, a1
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fminimum_nnan_attr_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -16
; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    call fminimumf
; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 16
; RV64I-NEXT:    ret
  %1 = call float @llvm.minimum.f32(float %a, float %b)
  ret float %1
}

define float @fminimum_nnan_op_f32(float %a, float %b) nounwind {
; RV32IF-LABEL: fminimum_nnan_op_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    feq.s a0, fa0, fa0
; RV32IF-NEXT:    bnez a0, .LBB5_2
; RV32IF-NEXT:  # %bb.1:
; RV32IF-NEXT:    fmin.s fa0, fa0, fa0
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB5_2:
; RV32IF-NEXT:    fadd.s fa5, fa0, fa0
; RV32IF-NEXT:    fmin.s fa0, fa0, fa5
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fminimum_nnan_op_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    feq.s a1, a0, a0
; RV32IZFINX-NEXT:    bnez a1, .LBB5_2
; RV32IZFINX-NEXT:  # %bb.1:
; RV32IZFINX-NEXT:    fmin.s a0, a0, a0
; RV32IZFINX-NEXT:    ret
; RV32IZFINX-NEXT:  .LBB5_2:
; RV32IZFINX-NEXT:    fadd.s a1, a0, a0
; RV32IZFINX-NEXT:    fmin.s a0, a0, a1
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fminimum_nnan_op_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
; RV32I-NEXT:    mv s0, a0
; RV32I-NEXT:    mv a1, a0
; RV32I-NEXT:    call __addsf3
; RV32I-NEXT:    mv a1, a0
; RV32I-NEXT:    mv a0, s0
; RV32I-NEXT:    call fminimumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fminimum_nnan_op_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    feq.s a0, fa0, fa0
; RV64IF-NEXT:    bnez a0, .LBB5_2
; RV64IF-NEXT:  # %bb.1:
; RV64IF-NEXT:    fmin.s fa0, fa0, fa0
; RV64IF-NEXT:    ret
; RV64IF-NEXT:  .LBB5_2:
; RV64IF-NEXT:    fadd.s fa5, fa0, fa0
; RV64IF-NEXT:    fmin.s fa0, fa0, fa5
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fminimum_nnan_op_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    feq.s a1, a0, a0
; RV64IZFINX-NEXT:    bnez a1, .LBB5_2
; RV64IZFINX-NEXT:  # %bb.1:
; RV64IZFINX-NEXT:    fmin.s a0, a0, a0
; RV64IZFINX-NEXT:    ret
; RV64IZFINX-NEXT:  .LBB5_2:
; RV64IZFINX-NEXT:    fadd.s a1, a0, a0
; RV64IZFINX-NEXT:    fmin.s a0, a0, a1
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fminimum_nnan_op_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -16
; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT:    mv s0, a0
; RV64I-NEXT:    mv a1, a0
; RV64I-NEXT:    call __addsf3
; RV64I-NEXT:    mv a1, a0
; RV64I-NEXT:    mv a0, s0
; RV64I-NEXT:    call fminimumf
; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 16
; RV64I-NEXT:    ret
  %c = fadd nnan float %a, %a
  %1 = call float @llvm.minimum.f32(float %a, float %c)
  ret float %1
}

define float @fmaximum_nnan_op_f32(float %a, float %b) nounwind {
; RV32IF-LABEL: fmaximum_nnan_op_f32:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    fadd.s fa5, fa0, fa1
; RV32IF-NEXT:    fsub.s fa4, fa0, fa1
; RV32IF-NEXT:    fmax.s fa0, fa5, fa4
; RV32IF-NEXT:    ret
;
; RV32IZFINX-LABEL: fmaximum_nnan_op_f32:
; RV32IZFINX:       # %bb.0:
; RV32IZFINX-NEXT:    fadd.s a2, a0, a1
; RV32IZFINX-NEXT:    fsub.s a0, a0, a1
; RV32IZFINX-NEXT:    fmax.s a0, a2, a0
; RV32IZFINX-NEXT:    ret
;
; RV32I-LABEL: fmaximum_nnan_op_f32:
; RV32I:       # %bb.0:
; RV32I-NEXT:    addi sp, sp, -16
; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
; RV32I-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
; RV32I-NEXT:    sw s2, 0(sp) # 4-byte Folded Spill
; RV32I-NEXT:    mv s0, a1
; RV32I-NEXT:    mv s1, a0
; RV32I-NEXT:    call __addsf3
; RV32I-NEXT:    mv s2, a0
; RV32I-NEXT:    mv a0, s1
; RV32I-NEXT:    mv a1, s0
; RV32I-NEXT:    call __subsf3
; RV32I-NEXT:    mv a1, a0
; RV32I-NEXT:    mv a0, s2
; RV32I-NEXT:    call fmaximumf
; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
; RV32I-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
; RV32I-NEXT:    lw s2, 0(sp) # 4-byte Folded Reload
; RV32I-NEXT:    addi sp, sp, 16
; RV32I-NEXT:    ret
;
; RV64IF-LABEL: fmaximum_nnan_op_f32:
; RV64IF:       # %bb.0:
; RV64IF-NEXT:    fadd.s fa5, fa0, fa1
; RV64IF-NEXT:    fsub.s fa4, fa0, fa1
; RV64IF-NEXT:    fmax.s fa0, fa5, fa4
; RV64IF-NEXT:    ret
;
; RV64IZFINX-LABEL: fmaximum_nnan_op_f32:
; RV64IZFINX:       # %bb.0:
; RV64IZFINX-NEXT:    fadd.s a2, a0, a1
; RV64IZFINX-NEXT:    fsub.s a0, a0, a1
; RV64IZFINX-NEXT:    fmax.s a0, a2, a0
; RV64IZFINX-NEXT:    ret
;
; RV64I-LABEL: fmaximum_nnan_op_f32:
; RV64I:       # %bb.0:
; RV64I-NEXT:    addi sp, sp, -32
; RV64I-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
; RV64I-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
; RV64I-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT:    mv s0, a1
; RV64I-NEXT:    mv s1, a0
; RV64I-NEXT:    call __addsf3
; RV64I-NEXT:    mv s2, a0
; RV64I-NEXT:    mv a0, s1
; RV64I-NEXT:    mv a1, s0
; RV64I-NEXT:    call __subsf3
; RV64I-NEXT:    mv a1, a0
; RV64I-NEXT:    mv a0, s2
; RV64I-NEXT:    call fmaximumf
; RV64I-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
; RV64I-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
; RV64I-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT:    addi sp, sp, 32
; RV64I-NEXT:    ret
  %c = fadd nnan float %a, %b
  %d = fsub nnan float %a, %b
  %1 = call float @llvm.maximum.f32(float %c, float %d)
  ret float %1
}