//===-- gesf2.S - single-precision floating point comparison --------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This function has the semantics of GNU __cmpsf2, except for its NaN
// handling. It's a three-way compare which returns <0 if x<y, 0 if x==y, and
// >0 if x>y. If the result is unordered (i.e. x or y or both is NaN) then it
// returns <0, where __cmpsf2 would return >0.
//
// This also makes it suitable for use as __gtsf2 or __gesf2 (or __eqsf2 or
// __nesf2).
//
//===----------------------------------------------------------------------===//

#include "../assembly.h"

  .syntax unified
  .text
  .p2align 2

op0 .req r0
op1 .req r1
.macro SetReturnRegister
  mov r0, #0
  movhi r0, #1
  movlo r0, #-1
.endm

#if __ARM_PCS_VFP
DEFINE_COMPILERRT_FUNCTION(__gesf2)
  push {r4, lr}
  vmov r0, s0
  vmov r1, s1
  bl __compiler_rt_softfp_gesf2
  pop {r4, pc}
#else
DEFINE_COMPILERRT_FUNCTION_ALIAS(__gesf2, __compiler_rt_softfp_gesf2)
#endif
DEFINE_COMPILERRT_FUNCTION_ALIAS(__gtsf2, __gesf2)

DEFINE_COMPILERRT_FUNCTION(__compiler_rt_softfp_gesf2)
  #include "fcmp.h"

LOCAL_LABEL(NaN):
  mov r0, #-1
  bx lr

END_COMPILERRT_FUNCTION(__compiler_rt_softfp_gesf2)

NO_EXEC_STACK_DIRECTIVE