| 1 | //===-- Unittests for ffsl ------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/strings/ffsl.h" |
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| 10 | |
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| 11 | #include "src/__support/macros/config.h" |
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| 12 | #include "test/UnitTest/Test.h" |
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| 13 | |
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| 14 | namespace LIBC_NAMESPACE_DECL { |
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| 15 | |
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| 16 | TEST(LlvmLibcFfslTest, SimpleFfsl) { |
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| 17 | ASSERT_EQ(ffsl(0x00000000L), 0); |
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| 18 | ASSERT_EQ(ffsl(0x00000001L), 1); |
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| 19 | ASSERT_EQ(ffsl(0x00000020L), 6); |
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| 20 | ASSERT_EQ(ffsl(0x00000400L), 11); |
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| 21 | ASSERT_EQ(ffsl(0x00008000L), 16); |
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| 22 | ASSERT_EQ(ffsl(0x00010000L), 17); |
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| 23 | ASSERT_EQ(ffsl(0x00200000L), 22); |
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| 24 | ASSERT_EQ(ffsl(0x04000000L), 27); |
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| 25 | ASSERT_EQ(ffsl(0x80000000L), 32); |
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| 26 | #ifdef __LP64__ |
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| 27 | ASSERT_EQ(ffsl(0x0000000100000000L), 33); |
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| 28 | ASSERT_EQ(ffsl(0x0000002000000000L), 38); |
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| 29 | ASSERT_EQ(ffsl(0x0000040000000000L), 43); |
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| 30 | ASSERT_EQ(ffsl(0x0000800000000000L), 48); |
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| 31 | ASSERT_EQ(ffsl(0x0001000000000000L), 49); |
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| 32 | ASSERT_EQ(ffsl(0x0020000000000000L), 54); |
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| 33 | ASSERT_EQ(ffsl(0x0400000000000000L), 59); |
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| 34 | ASSERT_EQ(ffsl(0x8000000000000000L), 64); |
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| 35 | #endif |
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| 36 | ASSERT_EQ(ffsl(0xfbe71L), 1); |
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| 37 | ASSERT_EQ(ffsl(0xfbe70L), 5); |
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| 38 | ASSERT_EQ(ffsl(0x10L), 5); |
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| 39 | ASSERT_EQ(ffsl(0x100L), 9); |
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| 40 | } |
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| 41 | |
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| 42 | } // namespace LIBC_NAMESPACE_DECL |
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| 43 | |
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