| 1 | //===-- Utilities for testing stdbit --------------------------------------===// |
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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 | // SPDSList-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 | /* |
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| 10 | * Declare these BEFORE including stdbit-macros.h so that this test may still be |
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| 11 | * run even if a given target doesn't yet have these individual entrypoints |
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| 12 | * enabled. |
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| 13 | */ |
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| 14 | |
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| 15 | #include "include/__llvm-libc-common.h" |
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| 16 | |
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| 17 | #include <stdbool.h> // bool in C |
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| 18 | |
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| 19 | #define STDBIT_STUB_FUNCTION(FUNC_NAME, LEADING_VAL) \ |
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| 20 | unsigned FUNC_NAME##_uc(unsigned char x) __NOEXCEPT { \ |
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| 21 | return LEADING_VAL##AU; \ |
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| 22 | } \ |
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| 23 | unsigned FUNC_NAME##_us(unsigned short x) __NOEXCEPT { \ |
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| 24 | return LEADING_VAL##BU; \ |
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| 25 | } \ |
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| 26 | unsigned FUNC_NAME##_ui(unsigned int x) __NOEXCEPT { \ |
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| 27 | return LEADING_VAL##CU; \ |
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| 28 | } \ |
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| 29 | unsigned FUNC_NAME##_ul(unsigned long x) __NOEXCEPT { \ |
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| 30 | return LEADING_VAL##DU; \ |
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| 31 | } \ |
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| 32 | unsigned FUNC_NAME##_ull(unsigned long long x) __NOEXCEPT { \ |
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| 33 | return LEADING_VAL##EU; \ |
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| 34 | } |
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| 35 | |
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| 36 | __BEGIN_C_DECLS |
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| 37 | |
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| 38 | STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA) |
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| 39 | STDBIT_STUB_FUNCTION(stdc_leading_ones, 0xB) |
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| 40 | STDBIT_STUB_FUNCTION(stdc_trailing_zeros, 0xC) |
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| 41 | STDBIT_STUB_FUNCTION(stdc_trailing_ones, 0xD) |
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| 42 | STDBIT_STUB_FUNCTION(stdc_first_leading_zero, 0xE) |
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| 43 | STDBIT_STUB_FUNCTION(stdc_first_leading_one, 0xF) |
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| 44 | STDBIT_STUB_FUNCTION(stdc_first_trailing_zero, 0x0) |
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| 45 | STDBIT_STUB_FUNCTION(stdc_first_trailing_one, 0x1) |
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| 46 | STDBIT_STUB_FUNCTION(stdc_count_zeros, 0x2) |
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| 47 | STDBIT_STUB_FUNCTION(stdc_count_ones, 0x3) |
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| 48 | |
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| 49 | bool stdc_has_single_bit_uc(unsigned char x) __NOEXCEPT { return false; } |
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| 50 | bool stdc_has_single_bit_us(unsigned short x) __NOEXCEPT { return false; } |
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| 51 | bool stdc_has_single_bit_ui(unsigned x) __NOEXCEPT { return false; } |
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| 52 | bool stdc_has_single_bit_ul(unsigned long x) __NOEXCEPT { return false; } |
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| 53 | bool stdc_has_single_bit_ull(unsigned long long x) __NOEXCEPT { return false; } |
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| 54 | |
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| 55 | STDBIT_STUB_FUNCTION(stdc_bit_width, 0x4) |
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| 56 | |
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| 57 | unsigned char stdc_bit_floor_uc(unsigned char x) __NOEXCEPT { return 0x5AU; } |
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| 58 | unsigned short stdc_bit_floor_us(unsigned short x) __NOEXCEPT { return 0x5BU; } |
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| 59 | unsigned stdc_bit_floor_ui(unsigned x) __NOEXCEPT { return 0x5CU; } |
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| 60 | unsigned long stdc_bit_floor_ul(unsigned long x) __NOEXCEPT { return 0x5DUL; } |
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| 61 | unsigned long long stdc_bit_floor_ull(unsigned long long x) __NOEXCEPT { |
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| 62 | return 0x5EULL; |
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| 63 | } |
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| 64 | |
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| 65 | unsigned char stdc_bit_ceil_uc(unsigned char x) __NOEXCEPT { return 0x6AU; } |
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| 66 | unsigned short stdc_bit_ceil_us(unsigned short x) __NOEXCEPT { return 0x6BU; } |
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| 67 | unsigned stdc_bit_ceil_ui(unsigned x) __NOEXCEPT { return 0x6CU; } |
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| 68 | unsigned long stdc_bit_ceil_ul(unsigned long x) __NOEXCEPT { return 0x6DUL; } |
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| 69 | unsigned long long stdc_bit_ceil_ull(unsigned long long x) __NOEXCEPT { |
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| 70 | return 0x6EULL; |
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| 71 | } |
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| 72 | |
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| 73 | __END_C_DECLS |
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| 74 | |
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