llvm/llvm/test/CodeGen/RISCV/float-isnan.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -mattr=+f -target-abi ilp32f -verify-machineinstrs \
; RUN:   < %s | FileCheck %s
; RUN: llc -mtriple=riscv64 -mattr=+f -target-abi lp64f -verify-machineinstrs \
; RUN:   < %s | FileCheck %s
; RUN: llc -mtriple=riscv32 -mattr=+zfinx -target-abi ilp32 -verify-machineinstrs \
; RUN:   < %s | FileCheck --check-prefix=CHECKZFINX %s
; RUN: llc -mtriple=riscv64 -mattr=+zfinx -target-abi lp64 -verify-machineinstrs \
; RUN:   < %s | FileCheck --check-prefix=CHECKZFINX %s

define zeroext i1 @float_is_nan(float %a) nounwind {
; CHECK-LABEL: float_is_nan:
; CHECK:       # %bb.0:
; CHECK-NEXT:    feq.s a0, fa0, fa0
; CHECK-NEXT:    xori a0, a0, 1
; CHECK-NEXT:    ret
;
; CHECKZFINX-LABEL: float_is_nan:
; CHECKZFINX:       # %bb.0:
; CHECKZFINX-NEXT:    feq.s a0, a0, a0
; CHECKZFINX-NEXT:    xori a0, a0, 1
; CHECKZFINX-NEXT:    ret
  %1 = fcmp uno float %a, 0.000000e+00
  ret i1 %1
}

define zeroext i1 @float_not_nan(float %a) nounwind {
; CHECK-LABEL: float_not_nan:
; CHECK:       # %bb.0:
; CHECK-NEXT:    feq.s a0, fa0, fa0
; CHECK-NEXT:    ret
;
; CHECKZFINX-LABEL: float_not_nan:
; CHECKZFINX:       # %bb.0:
; CHECKZFINX-NEXT:    feq.s a0, a0, a0
; CHECKZFINX-NEXT:    ret
  %1 = fcmp ord float %a, 0.000000e+00
  ret i1 %1
}