diff options
Diffstat (limited to 'MdeModulePkg/Library/BrotliCustomDecompressLib/common/port.h')
-rw-r--r-- | MdeModulePkg/Library/BrotliCustomDecompressLib/common/port.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/MdeModulePkg/Library/BrotliCustomDecompressLib/common/port.h b/MdeModulePkg/Library/BrotliCustomDecompressLib/common/port.h new file mode 100644 index 0000000000..641bd38dc5 --- /dev/null +++ b/MdeModulePkg/Library/BrotliCustomDecompressLib/common/port.h @@ -0,0 +1,107 @@ +/* Copyright 2016 Google Inc. All Rights Reserved.
+
+ Distributed under MIT license.
+ See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+/* Macros for compiler / platform specific features and build options. */
+
+#ifndef BROTLI_COMMON_PORT_H_
+#define BROTLI_COMMON_PORT_H_
+
+/* Compatibility with non-clang compilers. */
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif
+
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+#define BROTLI_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
+#else
+#define BROTLI_GCC_VERSION 0
+#endif
+
+#if defined(__ICC)
+#define BROTLI_ICC_VERSION __ICC
+#else
+#define BROTLI_ICC_VERSION 0
+#endif
+
+#if defined(BROTLI_BUILD_MODERN_COMPILER)
+#define BROTLI_MODERN_COMPILER 1
+#elif BROTLI_GCC_VERSION > 300 || BROTLI_ICC_VERSION >= 1600
+#define BROTLI_MODERN_COMPILER 1
+#else
+#define BROTLI_MODERN_COMPILER 0
+#endif
+
+/* Define "PREDICT_TRUE" and "PREDICT_FALSE" macros for capable compilers.
+
+To apply compiler hint, enclose the branching condition into macros, like this:
+
+ if (PREDICT_TRUE(zero == 0)) {
+ // main execution path
+ } else {
+ // compiler should place this code outside of main execution path
+ }
+
+OR:
+
+ if (PREDICT_FALSE(something_rare_or_unexpected_happens)) {
+ // compiler should place this code outside of main execution path
+ }
+
+*/
+#if BROTLI_MODERN_COMPILER || __has_builtin(__builtin_expect)
+#define PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
+#define PREDICT_FALSE(x) (__builtin_expect(x, 0))
+#else
+#define PREDICT_FALSE(x) (x)
+#define PREDICT_TRUE(x) (x)
+#endif
+
+#if BROTLI_MODERN_COMPILER || __has_attribute(always_inline)
+#define ATTRIBUTE_ALWAYS_INLINE __attribute__ ((always_inline))
+#else
+#define ATTRIBUTE_ALWAYS_INLINE
+#endif
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+#define ATTRIBUTE_VISIBILITY_HIDDEN
+#elif BROTLI_MODERN_COMPILER || __has_attribute(visibility)
+#define ATTRIBUTE_VISIBILITY_HIDDEN __attribute__ ((visibility ("hidden")))
+#else
+#define ATTRIBUTE_VISIBILITY_HIDDEN
+#endif
+
+#ifndef BROTLI_INTERNAL
+#define BROTLI_INTERNAL ATTRIBUTE_VISIBILITY_HIDDEN
+#endif
+
+#ifndef _MSC_VER
+#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \
+ __STDC_VERSION__ >= 199901L
+#define BROTLI_INLINE inline ATTRIBUTE_ALWAYS_INLINE
+#else
+#define BROTLI_INLINE
+#endif
+#else /* _MSC_VER */
+#define BROTLI_INLINE __forceinline
+#endif /* _MSC_VER */
+
+#if BROTLI_MODERN_COMPILER || __has_attribute(noinline)
+#define BROTLI_NOINLINE __attribute__((noinline))
+#else
+#define BROTLI_NOINLINE
+#endif
+
+#define BROTLI_UNUSED(X) (void)(X)
+
+#endif /* BROTLI_COMMON_PORT_H_ */
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