Update brotli to v1.0.0-snapshot.

third_party/brotli/include/brotli/port.h

Index: third_party/brotli/include/brotli/port.h
diff --git a/third_party/brotli/dec/port.h b/third_party/brotli/include/brotli/port.h
similarity index 24%
copy from third_party/brotli/dec/port.h
copy to third_party/brotli/include/brotli/port.h
index 30b5cac742d67b8bee6ac565290197f371206160..da4461c5f2db654643200cc4fd4e4fd3319967c0 100644
--- a/third_party/brotli/dec/port.h
+++ b/third_party/brotli/include/brotli/port.h
@@ -1,33 +1,13 @@
-/* Copyright 2015 Google Inc. All Rights Reserved.
+/* 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.
-
-   Build options are:
-    * BROTLI_BUILD_32_BIT disables 64-bit optimizations
-    * BROTLI_BUILD_64_BIT forces to use 64-bit optimizations
-    * BROTLI_BUILD_BIG_ENDIAN forces to use big-endian optimizations
-    * BROTLI_BUILD_ENDIAN_NEUTRAL disables endian-aware optimizations
-    * BROTLI_BUILD_LITTLE_ENDIAN forces to use little-endian optimizations
-    * BROTLI_BUILD_MODERN_COMPILER forces to use modern compilers built-ins,
-      features and attributes
-    * BROTLI_BUILD_PORTABLE disables dangerous optimizations, like unaligned
-      read and overlapping memcpy; this reduces decompression speed by 5%
-    * BROTLI_DEBUG dumps file name and line number when decoder detects stream
-      or memory error
-    * BROTLI_ENABLE_LOG enables asserts and dumps various state information
- */
-
-#ifndef BROTLI_DEC_PORT_H_
-#define BROTLI_DEC_PORT_H_
-
-#if defined(BROTLI_ENABLE_LOG) || defined(BROTLI_DEBUG)
-#include <assert.h>
-#include <stdio.h>
-#endif
+/* 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
@@ -42,30 +22,6 @@
 #define __has_feature(x) 0
 #endif
 
-#if defined(__arm__) || defined(__thumb__) || \
-    defined(_M_ARM) || defined(_M_ARMT)
-#define BROTLI_TARGET_ARM
-#if (defined(__ARM_ARCH) && (__ARM_ARCH >= 7)) || \
-    (defined(M_ARM) && (M_ARM >= 7))
-#define BROTLI_TARGET_ARMV7
-#endif  /* ARMv7 */
-#if defined(__aarch64__)
-#define BROTLI_TARGET_ARMV8
-#endif  /* ARMv8 */
-#endif  /* ARM */
-
-#if defined(__i386) || defined(_M_IX86)
-#define BROTLI_TARGET_X86
-#endif
-
-#if defined(__x86_64__) || defined(_M_X64)
-#define BROTLI_TARGET_X64
-#endif
-
-#if defined(__PPC64__)
-#define BROTLI_TARGET_POWERPC64
-#endif
-
 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
 #define BROTLI_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
 #else
@@ -80,27 +36,18 @@
 
 #if defined(BROTLI_BUILD_MODERN_COMPILER)
 #define BROTLI_MODERN_COMPILER 1
-#elif (BROTLI_GCC_VERSION > 300) || (BROTLI_ICC_VERSION >= 1600)
+#elif BROTLI_GCC_VERSION > 300 || BROTLI_ICC_VERSION >= 1600
 #define BROTLI_MODERN_COMPILER 1
 #else
 #define BROTLI_MODERN_COMPILER 0
 #endif
 
-#ifdef BROTLI_BUILD_PORTABLE
-#define BROTLI_ALIGNED_READ (!!1)
-#elif defined(BROTLI_TARGET_X86) || defined(BROTLI_TARGET_X64) || \
-     defined(BROTLI_TARGET_ARMV7) || defined(BROTLI_TARGET_ARMV8)
-/* Allow unaligned read only for whitelisted CPUs. */
-#define BROTLI_ALIGNED_READ (!!0)
-#else
-#define BROTLI_ALIGNED_READ (!!1)
-#endif
-
-/* Define "PREDICT_TRUE" and "PREDICT_FALSE" macros for capable compilers.
+/* Define "BROTLI_PREDICT_TRUE" and "BROTLI_PREDICT_FALSE" macros for capable
+   compilers.
 
 To apply compiler hint, enclose the branching condition into macros, like this:
 
-  if (PREDICT_TRUE(zero == 0)) {
+  if (BROTLI_PREDICT_TRUE(zero == 0)) {
     // main execution path
   } else {
     // compiler should place this code outside of main execution path
@@ -108,46 +55,64 @@ To apply compiler hint, enclose the branching condition into macros, like this:
 
 OR:
 
-  if (PREDICT_FALSE(something_rare_or_unexpected_happens)) {
+  if (BROTLI_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
-
-/* IS_CONSTANT macros returns true for compile-time constant expressions. */
-#if BROTLI_MODERN_COMPILER || __has_builtin(__builtin_constant_p)
-#define IS_CONSTANT(x) (!!__builtin_constant_p(x))
+#define BROTLI_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
+#define BROTLI_PREDICT_FALSE(x) (__builtin_expect(x, 0))
 #else
-#define IS_CONSTANT(x) (!!0)
+#define BROTLI_PREDICT_FALSE(x) (x)
+#define BROTLI_PREDICT_TRUE(x) (x)
 #endif
 
 #if BROTLI_MODERN_COMPILER || __has_attribute(always_inline)
-#define ATTRIBUTE_ALWAYS_INLINE __attribute__ ((always_inline))
+#define BROTLI_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((always_inline))
 #else
-#define ATTRIBUTE_ALWAYS_INLINE
+#define BROTLI_ATTRIBUTE_ALWAYS_INLINE
 #endif
 
-#if BROTLI_MODERN_COMPILER || __has_attribute(visibility)
-#define ATTRIBUTE_VISIBILITY_HIDDEN __attribute__ ((visibility ("hidden")))
+#if defined(_WIN32) || defined(__CYGWIN__)
+#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN
+#elif BROTLI_MODERN_COMPILER || __has_attribute(visibility)
+#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN \
+    __attribute__ ((visibility ("hidden")))
 #else
-#define ATTRIBUTE_VISIBILITY_HIDDEN
+#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN
 #endif
 
 #ifndef BROTLI_INTERNAL
-#define BROTLI_INTERNAL ATTRIBUTE_VISIBILITY_HIDDEN
+#define BROTLI_INTERNAL BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN
+#endif
+
+#if defined(BROTLI_SHARED_COMPILATION) && defined(_WIN32)
+#if defined(BROTLICOMMON_SHARED_COMPILATION)
+#define BROTLI_COMMON_API __declspec(dllexport)
+#else
+#define BROTLI_COMMON_API __declspec(dllimport)
+#endif  /* BROTLICOMMON_SHARED_COMPILATION */
+#if defined(BROTLIDEC_SHARED_COMPILATION)
+#define BROTLI_DEC_API __declspec(dllexport)
+#else
+#define BROTLI_DEC_API __declspec(dllimport)
+#endif  /* BROTLIDEC_SHARED_COMPILATION */
+#if defined(BROTLIENC_SHARED_COMPILATION)
+#define BROTLI_ENC_API __declspec(dllexport)
+#else
+#define BROTLI_ENC_API __declspec(dllimport)
+#endif  /* BROTLIENC_SHARED_COMPILATION */
+#else  /* BROTLI_SHARED_COMPILATION && _WIN32 */
+#define BROTLI_COMMON_API
+#define BROTLI_DEC_API
+#define BROTLI_ENC_API
 #endif
 
 #ifndef _MSC_VER
 #if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \
-    __STDC_VERSION__ >= 199901L
-#define BROTLI_INLINE inline ATTRIBUTE_ALWAYS_INLINE
+    (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+#define BROTLI_INLINE inline BROTLI_ATTRIBUTE_ALWAYS_INLINE
 #else
 #define BROTLI_INLINE
 #endif
@@ -155,58 +120,13 @@ OR:
 #define BROTLI_INLINE __forceinline
 #endif  /* _MSC_VER */
 
-#ifdef BROTLI_ENABLE_LOG
-#define BROTLI_DCHECK(x) assert(x)
-#define BROTLI_LOG(x) printf x
-#else
-#define BROTLI_DCHECK(x)
-#define BROTLI_LOG(x)
-#endif
-
-#if defined(BROTLI_DEBUG) || defined(BROTLI_ENABLE_LOG)
-static inline void BrotliDump(const char* f, int l, const char* fn) {
-  fprintf(stderr, "%s:%d (%s)\n", f, l, fn);
-  fflush(stderr);
-}
-#define BROTLI_DUMP() BrotliDump(__FILE__, __LINE__, __FUNCTION__)
-#else
-#define BROTLI_DUMP() (void)(0)
-#endif
-
-#if defined(BROTLI_BUILD_64_BIT)
-#define BROTLI_64_BITS 1
-#elif defined(BROTLI_BUILD_32_BIT)
-#define BROTLI_64_BITS 0
-#elif defined(BROTLI_TARGET_X64) || defined(BROTLI_TARGET_ARMV8) || \
-    defined(BROTLI_TARGET_POWERPC64)
-#define BROTLI_64_BITS 1
+#if !defined(__cplusplus) && !defined(c_plusplus) && \
+    (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+#define BROTLI_RESTRICT restrict
+#elif BROTLI_GCC_VERSION > 295 || defined(__llvm__)
+#define BROTLI_RESTRICT __restrict
 #else
-#define BROTLI_64_BITS 0
-#endif
-
-#if defined(BROTLI_BUILD_BIG_ENDIAN)
-#define BROTLI_LITTLE_ENDIAN 0
-#define BROTLI_BIG_ENDIAN 1
-#elif defined(BROTLI_BUILD_LITTLE_ENDIAN)
-#define BROTLI_LITTLE_ENDIAN 1
-#define BROTLI_BIG_ENDIAN 0
-#elif defined(BROTLI_BUILD_ENDIAN_NEUTRAL)
-#define BROTLI_LITTLE_ENDIAN 0
-#define BROTLI_BIG_ENDIAN 0
-#elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
-#define BROTLI_LITTLE_ENDIAN 1
-#define BROTLI_BIG_ENDIAN 0
-#elif defined(_WIN32)
-/* Win32 can currently always be assumed to be little endian */
-#define BROTLI_LITTLE_ENDIAN 1
-#define BROTLI_BIG_ENDIAN 0
-#else
-#if (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
-#define BROTLI_BIG_ENDIAN 1
-#else
-#define BROTLI_BIG_ENDIAN 0
-#endif
-#define BROTLI_LITTLE_ENDIAN 0
+#define BROTLI_RESTRICT
 #endif
 
 #if BROTLI_MODERN_COMPILER || __has_attribute(noinline)
@@ -215,36 +135,13 @@ static inline void BrotliDump(const char* f, int l, const char* fn) {
 #define BROTLI_NOINLINE
 #endif
 
-#define BROTLI_REPEAT(N, X) {     \
-  if ((N & 1) != 0) {X;}          \
-  if ((N & 2) != 0) {X; X;}       \
-  if ((N & 4) != 0) {X; X; X; X;} \
-}
-
-#if BROTLI_MODERN_COMPILER || defined(__llvm__)
-#if defined(BROTLI_TARGET_ARMV7)
-static BROTLI_INLINE unsigned BrotliRBit(unsigned input) {
-  unsigned output;
-  __asm__("rbit %0, %1\n" : "=r"(output) : "r"(input));
-  return output;
-}
-#define BROTLI_RBIT(x) BrotliRBit(x)
-#endif  /* armv7 */
-#endif  /* gcc || clang */
-
-#if defined(BROTLI_TARGET_ARM)
-#define BROTLI_HAS_UBFX (!!1)
+
+#if BROTLI_MODERN_COMPILER || __has_attribute(deprecated)
+#define BROTLI_DEPRECATED __attribute__((deprecated))
 #else
-#define BROTLI_HAS_UBFX (!!0)
+#define BROTLI_DEPRECATED
 #endif
 
-#define BROTLI_ALLOC(S, L) S->alloc_func(S->memory_manager_opaque, L)
-
-#define BROTLI_FREE(S, X) {                  \
-  S->free_func(S->memory_manager_opaque, X); \
-  X = NULL;                                  \
-}
-
 #define BROTLI_UNUSED(X) (void)(X)
 
-#endif  /* BROTLI_DEC_PORT_H_ */
+#endif  /* BROTLI_COMMON_PORT_H_ */