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[Bug rtl-optimization/58542] std::atomic<__int128_t>::store broken with -march=corei7
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 26 Sep 2013 17:20:13 +0000
- Subject: [Bug rtl-optimization/58542] std::atomic<__int128_t>::store broken with -march=corei7
- Auto-submitted: auto-generated
- References: <bug-58542-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58542
UroÅ Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-09-26
Component|c++ |rtl-optimization
Ever confirmed|0 |1
--- Comment #2 from UroÅ Bizjak <ubizjak at gmail dot com> ---
Confirmed, it is subreg1 pass that splits:
(insn 10 9 11 3 (set (reg:TI 107)
(const_double -1 [0xffffffffffffffff] 0 [0] 0 [0] 0 [0]))
/usr/include/c++/4.8.1/atomic:199 84 {*movti_internal}
(nil))
to:
(insn 58 57 59 3 (set (reg:DI 130)
(const_int -1 [0xffffffffffffffff])) /usr/include/c++/4.8.1/atomic:199
85 {*movdi_internal}
(nil))
(insn 59 58 11 3 (set (reg:DI 131 [+8 ])
(const_int 0 [0])) /usr/include/c++/4.8.1/atomic:199 85
{*movdi_internal}
(nil))