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[Bug tree-optimization/42893] [4.3/4.4/4.5 Regression] Missed conditionally dead store elimination
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Jan 2010 20:07:47 -0000
- Subject: [Bug tree-optimization/42893] [4.3/4.4/4.5 Regression] Missed conditionally dead store elimination
- References: <bug-42893-280@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from pinskia at gcc dot gnu dot org 2010-01-29 20:07 -------
Yep:
tui_registers_changed_hook:
blr
Which means this is the same as PR 23488 which was caused by:
2005-07-30 Jan Hubicka <jh@suse.cz>
* expr.c (expand_expr_real_1): Do not load mem targets into register.
* i386.c (ix86_fixup_binary_operands): Likewise.
(ix86_expand_unary_operator): Likewise.
(ix86_expand_fp_absneg_operator): Likewise.
* optabs.c (expand_vec_cond_expr): Validate dest.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC target triplet| |i?86-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42893