William e8a307498d
[builtins][AArch32] Fix __gnu_* functions (#137638)
Move to a consistent calling convention for both Clang/GNU such that
they can be linked with each other.

All ARM targets now use the soft-float calling convention for
`__gnu_h2f_ieee` and `__gnu_f2h_ieee`, as described in
https://github.com/ARM-software/abi-aa/blob/main/rtabi32/rtabi32.rst#the-floating-point-helper-functions.
2025-05-19 13:09:12 +01:00

30 lines
1.0 KiB
C

//===-- lib/truncsfhf2.c - single -> half conversion --------------*- C -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#define SRC_SINGLE
#define DST_HALF
#include "fp_trunc_impl.inc"
// Use a forwarding definition and noinline to implement a poor man's alias,
// as there isn't a good cross-platform way of defining one.
COMPILER_RT_ABI NOINLINE dst_t __truncsfhf2(float a) {
return __truncXfYf2__(a);
}
#if defined(__ARM_EABI__)
#if defined(COMPILER_RT_ARMHF_TARGET)
AEABI_RTABI dst_t __gnu_f2h_ieee(float a) { return __truncsfhf2(a); }
AEABI_RTABI dst_t __aeabi_f2h(float a) { return __truncsfhf2(a); }
#else
COMPILER_RT_ALIAS(__truncsfhf2, __gnu_f2h_ieee)
COMPILER_RT_ALIAS(__truncsfhf2, __aeabi_f2h)
#endif
#else
COMPILER_RT_ABI dst_t __gnu_f2h_ieee(float a) { return __truncsfhf2(a); }
#endif