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AK+Everywhere: Replace __builtin bit functions
In order to reduce our reliance on __builtin_{ffs, clz, ctz, popcount}, this commit removes all calls to these functions and replaces them with the equivalent functions in AK/BuiltinWrappers.h.
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08e4a1a4dc
20 changed files with 108 additions and 115 deletions
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@ -4,6 +4,7 @@
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/BuiltinWrappers.h>
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#include <AK/Debug.h>
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#include <AK/Function.h>
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#include <AK/String.h>
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@ -326,9 +327,9 @@ static void populate_dib_mask_info_if_needed(BMPLoadingContext& context)
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mask_sizes.append(0);
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continue;
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}
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int trailing_zeros = count_trailing_zeroes_32(mask);
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int trailing_zeros = count_trailing_zeroes(mask);
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// If mask is exactly `0xFFFFFFFF`, then we might try to count the trailing zeros of 0x00000000 here, so we need the safe version:
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int size = count_trailing_zeroes_32_safe(~(mask >> trailing_zeros));
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int size = count_trailing_zeroes_safe(~(mask >> trailing_zeros));
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if (size > 8) {
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// Drop lowest bits if mask is longer than 8 bits.
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trailing_zeros += size - 8;
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