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[Bug tree-optimization/80065] [7 Regression] sibling-call guard no longer working
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 16 Mar 2017 14:38:37 +0000
- Subject: [Bug tree-optimization/80065] [7 Regression] sibling-call guard no longer working
- Auto-submitted: auto-generated
- References: <bug-80065-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80065
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
Target Milestone|--- |7.0
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
ruby trunk uses
#define RB_GC_GUARD(v) \
(*__extension__ ({ \
volatile VALUE *rb_gc_guarded_ptr = &(v); \
__asm__("" : : "m"(rb_gc_guarded_ptr)); \
rb_gc_guarded_ptr; \
}))
which still works.