| //===-- Unittests for ffsl ------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/strings/ffsl.h" |
| |
| #include "src/__support/macros/config.h" |
| #include "test/UnitTest/Test.h" |
| |
| namespace LIBC_NAMESPACE_DECL { |
| |
| TEST(LlvmLibcFfslTest, SimpleFfsl) { |
| ASSERT_EQ(ffsl(0x00000000L), 0); |
| ASSERT_EQ(ffsl(0x00000001L), 1); |
| ASSERT_EQ(ffsl(0x00000020L), 6); |
| ASSERT_EQ(ffsl(0x00000400L), 11); |
| ASSERT_EQ(ffsl(0x00008000L), 16); |
| ASSERT_EQ(ffsl(0x00010000L), 17); |
| ASSERT_EQ(ffsl(0x00200000L), 22); |
| ASSERT_EQ(ffsl(0x04000000L), 27); |
| ASSERT_EQ(ffsl(0x80000000L), 32); |
| #ifdef __LP64__ |
| ASSERT_EQ(ffsl(0x0000000100000000L), 33); |
| ASSERT_EQ(ffsl(0x0000002000000000L), 38); |
| ASSERT_EQ(ffsl(0x0000040000000000L), 43); |
| ASSERT_EQ(ffsl(0x0000800000000000L), 48); |
| ASSERT_EQ(ffsl(0x0001000000000000L), 49); |
| ASSERT_EQ(ffsl(0x0020000000000000L), 54); |
| ASSERT_EQ(ffsl(0x0400000000000000L), 59); |
| ASSERT_EQ(ffsl(0x8000000000000000L), 64); |
| #endif |
| ASSERT_EQ(ffsl(0xfbe71L), 1); |
| ASSERT_EQ(ffsl(0xfbe70L), 5); |
| ASSERT_EQ(ffsl(0x10L), 5); |
| ASSERT_EQ(ffsl(0x100L), 9); |
| } |
| |
| } // namespace LIBC_NAMESPACE_DECL |
