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Define PHP_HAVE_BUILTIN_EXPECT for Clang on Windows (GH-17457)

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Clang supports `__builtin_expect()` at least as of 4.0.0, which is the
(theoretical) minimum required on Windows, so we define it
unconditionally.  This also solves some macro redefinition warnings in
JIT-IR.
This commit is contained in:
Christoph M. Becker
2025-01-17 14:21:02 +01:00
committed by GitHub
parent e64f674237
commit 8a9095a92e
1 changed files with 1 additions and 0 deletions
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win32/build/config.w32
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@@ -370,6 +370,7 @@ if (VS_TOOLSET) {
}
}
} else if (CLANG_TOOLSET) {
AC_DEFINE("PHP_HAVE_BUILTIN_EXPECT", 1, "Define to 1 if the compiler supports '__builtin_expect'.");
AC_DEFINE("PHP_HAVE_BUILTIN_SADDL_OVERFLOW", 1, "Define to 1 if the compiler supports '__builtin_saddl_overflow'.");
AC_DEFINE("PHP_HAVE_BUILTIN_SADDLL_OVERFLOW", 1, "Define to 1 if the compiler supports '__builtin_saddll_overflow'.");
AC_DEFINE("PHP_HAVE_BUILTIN_SSUBL_OVERFLOW", 1, "Define to 1 if the compiler supports '__builtin_ssubl_overflow'.");