On 1/22/20 9:35 PM, Jeff Law wrote:
On Wed, 2020-01-22 at 15:59 +0100, Martin Sebor wrote:
The early front-end only implementation of -Wrestrict that's still
present in GCC 10 issues a false postive for %p arguments that are
the same as the destination. Bug 84919 reports an instance of this
false positive in the Linux kernel.
That attached patch suppresses the front-end warning for the sprintf
family of functions, letting the sprintf pass that was in GCC 10
extended to also handle -Wrestrict for these functions, handle
them instead.
Tested on x86_64-linux.
Since this is a regression I'd like to commit the fix to GCC 10.
In the BZ your comment indicates that it trips another bogus warning
during bootstrap. Presumably you already fixed that? If so, OK.
That was PR 92666, an unrelated C++ bug fixed recently by Jakub.
This time, my bootstrap of this patch went fine.
Martin
