Am Montag, dem 06.11.2023 um 21:01 -0700 schrieb Jeff Law: > > On 11/6/23 20:58, Hans-Peter Nilsson wrote: > > > From: Martin Uecker <uec...@tugraz.at> > > > Date: Tue, 31 Oct 2023 20:05:09 +0100 > > > > > Reduce false positives for -Wnonnull for VLA parameters [PR98541] > > > > > > This patch limits the warning about NULL arguments to VLA > > > parameters declared [static n]. > > > > > > PR c/98541 > > > > > > gcc/ > > > * gimple-ssa-warn-access.cc > > > (pass_waccess::maybe_check_access_sizes): For VLA bounds > > > in parameters, only warn about null pointers with 'static'. > > > > > > gcc/testsuite: > > > * gcc.dg/Wnonnull-4: Adapt test. > > > * gcc.dg/Wstringop-overflow-40.c: Adapt test. > > > > This patch caused a testsuite regression: there's now an > > "excess error" failure for gcc.dg/Wnonnull-4.c for 32-bit > > targets (and 64-bit targets testing with a "-m32" option) > > after your r14-5115-g6e9ee44d96e5. It's logged as PR112419. > It caused failures for just about every target ;( Presumably it worked > on x86_64...
I do not think this is a true regression just a problem with the test on 32-bit which somehow surfaced due to the change. The excess error is: FAIL: gcc.dg/Wnonnull-4.c (test for excess errors) Excess errors: /home/tcwg-buildslave/workspace/tcwg_gnu_6/abe/snapshots/gcc.git~master/gcc/testsuite/gcc.dg/Wnonnull-4.c:144:3: warning: 'fda_n_5' specified size 4294967256 exceeds maximum object size 2147483647 [-Wstringop-overflow=] I think the warning was suppressed before due to the other (nonnull) warning which I removed in this case. I think the simple fix might be to to turn off -Wstringop-overflow. Link to the change: https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=6e9ee44d96e5bda8808dd9d8ccf58d2525383f6b Martin > > jeff
