https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81824
Khem Raj <raj.khem at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |raj.khem at gmail dot com --- Comment #16 from Khem Raj <raj.khem at gmail dot com> --- (In reply to Martin Sebor from comment #10) > Author: msebor > Date: Fri Nov 9 17:32:52 2018 > New Revision: 265980 > > URL: https://gcc.gnu.org/viewcvs?rev=265980&root=gcc&view=rev > Log: > PR middle-end/81824 - Warn for missing attributes with function aliases > > gcc/c-family/ChangeLog: > > PR middle-end/81824 > * c-attribs.c (handle_copy_attribute): New function. > > gcc/cp/ChangeLog: > > PR middle-end/81824 > * pt.c (warn_spec_missing_attributes): Move code to attribs.c. > Call decls_mismatched_attributes. > > gcc/ChangeLog: > > PR middle-end/81824 > * attribs.c (has_attribute): New helper function. > (decls_mismatched_attributes, maybe_diag_alias_attributes): Same. > * attribs.h (decls_mismatched_attributes): Declare. > * cgraphunit.c (handle_alias_pairs): Call maybe_diag_alias_attributes. > (maybe_diag_incompatible_alias): Use OPT_Wattribute_alias_. > * common.opt (-Wattribute-alias): Take an argument. > (-Wno-attribute-alias): New option. > * doc/extend.texi (Common Function Attributes): Document copy. > (Common Variable Attributes): Same. > * doc/invoke.texi (-Wmissing-attributes): Document enhancement. > (-Wattribute-alias): Document new option argument. > > gcc/testsuite/ChangeLog: > > PR middle-end/81824 > * gcc.dg/Wattribute-alias.c: New test. > * gcc.dg/Wmissing-attributes.c: New test. > * gcc.dg/attr-copy.c: New test. > * gcc.dg/attr-copy-2.c: New test. > * gcc.dg/attr-copy-3.c: New test. > * gcc.dg/attr-copy-4.c: New test. > > > Added: > trunk/gcc/testsuite/gcc.dg/Wattribute-alias.c > trunk/gcc/testsuite/gcc.dg/Wmissing-attributes.c > trunk/gcc/testsuite/gcc.dg/attr-copy-2.c > trunk/gcc/testsuite/gcc.dg/attr-copy-3.c > trunk/gcc/testsuite/gcc.dg/attr-copy-4.c > trunk/gcc/testsuite/gcc.dg/attr-copy.c > Modified: > trunk/gcc/ChangeLog > trunk/gcc/attribs.c > trunk/gcc/attribs.h > trunk/gcc/c-family/ChangeLog > trunk/gcc/c-family/c-attribs.c > trunk/gcc/cgraphunit.c > trunk/gcc/common.opt > trunk/gcc/cp/ChangeLog > trunk/gcc/cp/pt.c > trunk/gcc/doc/extend.texi > trunk/gcc/doc/invoke.texi > trunk/gcc/testsuite/ChangeLog > trunk/libgomp/libgomp.h the new behavior is to not accept -Wattribute-alias and mutate this option into -Wattribute-alias=, this conflicts with gcc8, is this planned move or do we want to attach default level to -Wattribute-alias if no argument is used ?