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authorSebastian Andrzej Siewior <sebastian@breakpoint.cc>2025-06-12 00:14:37 +0200
committerJunio C Hamano <gitster@pobox.com>2025-06-12 13:23:39 -0700
commit1c62df0abe3d77ebd66630921d857b36b6c15084 (patch)
treef1ef17e2d36b8871167567c17a26e5430f1462aa
parentMerge branch 'js/windows-arm64' (diff)
downloadgit-1c62df0abe3d77ebd66630921d857b36b6c15084.tar.gz
git-1c62df0abe3d77ebd66630921d857b36b6c15084.zip
Revert "bswap.h: add support for built-in bswap functions"
Since 6547d1c9 (bswap.h: add support for built-in bswap functions, 2025-04-23) tweaked the way the bswap32/64 macros are defined, on platforms with __builtin_bswap32/64 supported, the bswap32/64 macros are defined even on big endian platforms. However the rest of this file assumes that bswap32/64() are defined ONLY on little endian machines and uses that assumption to redefine ntohl/ntohll macros. The said commit broke t4014-format-patch.sh test, among many others on s390x. Revert the commit. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to '')
-rw-r--r--compat/bswap.h14
1 files changed, 1 insertions, 13 deletions
diff --git a/compat/bswap.h b/compat/bswap.h
index 9e0f98e00b..b34054f2bd 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -35,19 +35,7 @@ static inline uint64_t default_bswap64(uint64_t val)
#undef bswap32
#undef bswap64
-/**
- * __has_builtin is available since Clang 10 and GCC 10.
- * Below is a fallback for older compilers.
- */
-#ifndef __has_builtin
- #define __has_builtin(x) 0
-#endif
-
-#if __has_builtin(__builtin_bswap32) && __has_builtin(__builtin_bswap64)
-#define bswap32(x) __builtin_bswap32((x))
-#define bswap64(x) __builtin_bswap64((x))
-
-#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#define bswap32 git_bswap32
static inline uint32_t git_bswap32(uint32_t x)