llvm/compiler-rt/lib/builtins/int_mulo_impl.inc

//===-- int_mulo_impl.inc - Implement __mulo[sdt]i4 ---------------*- 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
//
//===----------------------------------------------------------------------===//
//
// Helper used by __mulosi4, __mulodi4 and __muloti4.
//
//===----------------------------------------------------------------------===//

#include "int_lib.h"

// Returns: a * b

// Effects: sets *overflow to 1  if a * b overflows

static __inline fixint_t __muloXi4(fixint_t a, fixint_t b, int *overflow) { … }