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[Bug tree-optimization/81776] missing sprintf optimization due to pointer escape analysis
- 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: Mon, 14 Aug 2017 13:37:00 +0000
- Subject: [Bug tree-optimization/81776] missing sprintf optimization due to pointer escape analysis
- Auto-submitted: auto-generated
- References: <bug-81776-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81776
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-14
CC| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's unclear what guarantees can be made here due to the pesky printf
formatting callbacks in glibc (maybe I misremember). This is the reason we do
not handle
this family of builtins in tree-ssa-structalias.c.
fnspec would be ".WR" for sprintf