https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86560
--- Comment #3 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> --- Author: hjl Date: Thu Jul 19 10:47:23 2018 New Revision: 262877 URL: https://gcc.gnu.org/viewcvs?rev=262877&root=gcc&view=rev Log: i386: Change indirect_return to function type attribute In struct ucontext; typedef struct ucontext ucontext_t; extern int (*bar) (ucontext_t *__restrict __oucp, const ucontext_t *__restrict __ucp) __attribute__((__indirect_return__)); extern int res; void foo (ucontext_t *oucp, ucontext_t *ucp) { res = bar (oucp, ucp); } bar() may return via indirect branch. This patch changes indirect_return to type attribute to allow indirect_return attribute on variable or type of function pointer so that ENDBR can be inserted after call to bar(). gcc/ PR target/86560 * config/i386/i386.c (rest_of_insert_endbranch): Lookup indirect_return as function type attribute. (ix86_attribute_table): Change indirect_return to function type attribute. * doc/extend.texi: Update indirect_return attribute. gcc/testsuite/ PR target/86560 * gcc.target/i386/pr86560-1.c: New test. * gcc.target/i386/pr86560-2.c: Likewise. * gcc.target/i386/pr86560-3.c: Likewise. Added: trunk/gcc/testsuite/gcc.target/i386/pr86560-1.c trunk/gcc/testsuite/gcc.target/i386/pr86560-2.c trunk/gcc/testsuite/gcc.target/i386/pr86560-3.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/doc/extend.texi trunk/gcc/testsuite/ChangeLog
