diff options
Diffstat (limited to 'lib/intprops.h')
| -rw-r--r-- | lib/intprops.h | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/lib/intprops.h b/lib/intprops.h index 3fe64e82e9f..7f20f09fa06 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -229,18 +229,18 @@ /* True if __builtin_add_overflow (A, B, P) and __builtin_sub_overflow (A, B, P) work when P is non-null. */ +#if defined __has_builtin +# define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow) /* __builtin_{add,sub}_overflow exists but is not reliable in GCC 5.x and 6.x, see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269>. */ -#if 7 <= __GNUC__ && !defined __ICC +#elif 7 <= __GNUC__ && !defined __EDG__ # define _GL_HAS_BUILTIN_ADD_OVERFLOW 1 -#elif defined __has_builtin -# define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow) #else # define _GL_HAS_BUILTIN_ADD_OVERFLOW 0 #endif /* True if __builtin_mul_overflow (A, B, P) works when P is non-null. */ -#ifdef __clang__ +#if defined __clang_major_ && __clang_major__ < 14 /* Work around Clang bug <https://bugs.llvm.org/show_bug.cgi?id=16404>. */ # define _GL_HAS_BUILTIN_MUL_OVERFLOW 0 #else @@ -249,9 +249,8 @@ /* True if __builtin_add_overflow_p (A, B, C) works, and similarly for __builtin_sub_overflow_p and __builtin_mul_overflow_p. */ -#if defined __clang__ || defined __ICC -/* Clang 11 lacks __builtin_mul_overflow_p, and even if it did it - would presumably run afoul of Clang bug 16404. ICC 2021.1's +#ifdef __EDG__ +/* In EDG-based compilers like ICC 2021.3 and earlier, __builtin_add_overflow_p etc. are not treated as integral constant expressions even when all arguments are. */ # define _GL_HAS_BUILTIN_OVERFLOW_P 0 @@ -400,7 +399,7 @@ #if _GL_HAS_BUILTIN_MUL_OVERFLOW # if ((9 < __GNUC__ + (3 <= __GNUC_MINOR__) \ || (__GNUC__ == 8 && 4 <= __GNUC_MINOR__)) \ - && !defined __ICC) + && !defined __EDG__) # define INT_MULTIPLY_WRAPV(a, b, r) __builtin_mul_overflow (a, b, r) # else /* Work around GCC bug 91450. */ |