4d41df6482
This is the first patch in a series to add support for the AVR target. This patch includes changes to make compiler-rt more target independent by not relying on the width of an int or long. Differential Revision: https://reviews.llvm.org/D78662
24 lines
776 B
C
24 lines
776 B
C
//===-- ffssi2.c - Implement __ffssi2 -------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements __ffssi2 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include "int_lib.h"
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// Returns: the index of the least significant 1-bit in a, or
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// the value zero if a is zero. The least significant bit is index one.
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COMPILER_RT_ABI int __ffssi2(si_int a) {
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if (a == 0) {
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return 0;
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}
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return ctzsi(a) + 1;
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}
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