43 lines · cpp
1//===-- Unittests for ffsl ------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/strings/ffsl.h"10 11#include "src/__support/macros/config.h"12#include "test/UnitTest/Test.h"13 14namespace LIBC_NAMESPACE_DECL {15 16TEST(LlvmLibcFfslTest, SimpleFfsl) {17 ASSERT_EQ(ffsl(0x00000000L), 0);18 ASSERT_EQ(ffsl(0x00000001L), 1);19 ASSERT_EQ(ffsl(0x00000020L), 6);20 ASSERT_EQ(ffsl(0x00000400L), 11);21 ASSERT_EQ(ffsl(0x00008000L), 16);22 ASSERT_EQ(ffsl(0x00010000L), 17);23 ASSERT_EQ(ffsl(0x00200000L), 22);24 ASSERT_EQ(ffsl(0x04000000L), 27);25 ASSERT_EQ(ffsl(0x80000000L), 32);26#ifdef __LP64__27 ASSERT_EQ(ffsl(0x0000000100000000L), 33);28 ASSERT_EQ(ffsl(0x0000002000000000L), 38);29 ASSERT_EQ(ffsl(0x0000040000000000L), 43);30 ASSERT_EQ(ffsl(0x0000800000000000L), 48);31 ASSERT_EQ(ffsl(0x0001000000000000L), 49);32 ASSERT_EQ(ffsl(0x0020000000000000L), 54);33 ASSERT_EQ(ffsl(0x0400000000000000L), 59);34 ASSERT_EQ(ffsl(0x8000000000000000L), 64);35#endif36 ASSERT_EQ(ffsl(0xfbe71L), 1);37 ASSERT_EQ(ffsl(0xfbe70L), 5);38 ASSERT_EQ(ffsl(0x10L), 5);39 ASSERT_EQ(ffsl(0x100L), 9);40}41 42} // namespace LIBC_NAMESPACE_DECL43