From: Paul Eggert Date: Tue, 19 Nov 2019 17:02:03 +0000 (-0800) Subject: intprops: speed up INT_MULTIPLY_WRAPV in GCC 9.3 X-Git-Tag: v1.0~4591 X-Git-Url: https://gitweb.git.savannah.gnu.org/gitweb/?a=commitdiff_plain;h=72473769f4c19e1b3e42f3ce4d54b973442bf7cb;p=gnulib.git intprops: speed up INT_MULTIPLY_WRAPV in GCC 9.3 * lib/intprops.h (INT_MULTIPLY_WRAPV): If GCC 9.3 or later, do not work around GCC bug 91450 as the bug should be fixed there. --- diff --git a/ChangeLog b/ChangeLog index 7264231337..f37a249b55 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2019-11-19 Paul Eggert + + intprops: speed up INT_MULTIPLY_WRAPV in GCC 9.3 + * lib/intprops.h (INT_MULTIPLY_WRAPV): If GCC 9.3 or later, do not + work around GCC bug 91450 as the bug should be fixed there. + 2019-11-18 Paul Eggert glob: get closer to glibc glob.c diff --git a/lib/intprops.h b/lib/intprops.h index bc7e950a0e..6a49c5ad4f 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -373,9 +373,10 @@ _GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW) #endif #if _GL_HAS_BUILTIN_MUL_OVERFLOW -/* Work around GCC bug 91450. */ +/* Work around GCC bug 91450 (fixed in GCC 9.3). */ # define INT_MULTIPLY_WRAPV(a, b, r) \ - ((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \ + ((! (9 < __GNUC__ + (3 <= __GNUC_MINOR__)) \ + && !_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \ && _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \ ? ((void) __builtin_mul_overflow (a, b, r), 1) \ : __builtin_mul_overflow (a, b, r))