ab56b9841c
We use a standard set of strict compiler warnings with Clang and GCC to continuously test and maintain C89 conformance in the libjpeg API code. However, SIMD extensions need not comply with that. The Neon code specifically uses some C99isms, so disable -Wdeclaration-after-statement, -Wc99-extensions, and -Wpedantic in the scope of that code. Also modify the Neon feature tests so that they will succeed if any of the aforementioned compiler warnings are enabled.
46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/*
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* Copyright (C) 2020, 2024, D. R. Commander. All Rights Reserved.
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* Copyright (C) 2020-2021, Arm Limited. All Rights Reserved.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#cmakedefine HAVE_VLD1_S16_X3
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#cmakedefine HAVE_VLD1_U16_X2
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#cmakedefine HAVE_VLD1Q_U8_X4
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/* Define compiler-independent count-leading-zeros and byte-swap macros */
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#if defined(_MSC_VER) && !defined(__clang__)
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#define BUILTIN_CLZ(x) _CountLeadingZeros(x)
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#define BUILTIN_CLZLL(x) _CountLeadingZeros64(x)
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#define BUILTIN_BSWAP64(x) _byteswap_uint64(x)
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#elif defined(__clang__) || defined(__GNUC__)
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#define BUILTIN_CLZ(x) __builtin_clz(x)
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#define BUILTIN_CLZLL(x) __builtin_clzll(x)
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#define BUILTIN_BSWAP64(x) __builtin_bswap64(x)
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#else
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#error "Unknown compiler"
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#endif
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#if defined(__clang__)
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#pragma clang diagnostic ignored "-Wdeclaration-after-statement"
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#pragma clang diagnostic ignored "-Wc99-extensions"
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#elif defined(__GNUC__)
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#pragma GCC diagnostic ignored "-Wdeclaration-after-statement"
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#pragma GCC diagnostic ignored "-Wpedantic"
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#endif
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