diff options
| author | Martin Uecker <uecker@tugraz.at> | 2023-07-27 13:41:33 +0200 |
|---|---|---|
| committer | Martin Uecker <uecker@tugraz.at> | 2023-11-11 10:37:46 +0100 |
| commit | c58b426d64ac2513dc0ed19165740604e891e9df (patch) | |
| tree | fb0ed672a677d1053af234821420b7460cd61504 /gcc/gimple-ssa-warn-access.cc | |
| parent | 391f9798b35ec75c1a49fb04610db5ab347e9d0d (diff) | |
| download | gcc-c58b426d64ac2513dc0ed19165740604e891e9df.zip gcc-c58b426d64ac2513dc0ed19165740604e891e9df.tar.gz gcc-c58b426d64ac2513dc0ed19165740604e891e9df.tar.bz2 | |
c: Synthesize nonnull attribute for parameters declared with static [PR110815]
Parameters declared with `static` are nonnull. We synthesize
an artifical nonnull attribute for such parameters to get the
same warnings and optimizations.
Bootstrapped and regression tested on x86.
PR c/110815
PR c/112428
gcc/c-family:
* c-attribs.cc (build_attr_access_from_parms): Synthesize
nonnull attribute for parameters declared with `static`.
gcc:
* gimple-ssa-warn-access.cc (pass_waccess::maybe_check_access_sizes):
remove warning for parameters declared with `static`.
gcc/testsuite:
* gcc.dg/Wnonnull-8.c: Adapt test.
* gcc.dg/Wnonnull-9.c: New test.
Diffstat (limited to 'gcc/gimple-ssa-warn-access.cc')
| -rw-r--r-- | gcc/gimple-ssa-warn-access.cc | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/gcc/gimple-ssa-warn-access.cc b/gcc/gimple-ssa-warn-access.cc index 8b73429..da2e3fe 100644 --- a/gcc/gimple-ssa-warn-access.cc +++ b/gcc/gimple-ssa-warn-access.cc @@ -3491,16 +3491,6 @@ pass_waccess::maybe_check_access_sizes (rdwr_map *rwm, tree fndecl, tree fntype, ptridx + 1, sizidx + 1, sizstr)) arg_warned = OPT_Wnonnull; } - else if (access_size && access.second.static_p) - { - /* Warn about null pointers for [static N] array arguments - but do not warn for ordinary (i.e., nonstatic) arrays. */ - if (warning_at (loc, OPT_Wnonnull, - "argument %i to %<%T[static %E]%> " - "is null where non-null expected", - ptridx + 1, argtype, access_nelts)) - arg_warned = OPT_Wnonnull; - } if (arg_warned != no_warning) { |