http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51125
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-11-18
CC| |aldyh at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #4 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2011-11-18
21:12:01 UTC ---
Michael.
This regression was caused by the following patch. Perhaps the reason nobody
caught it was because it came 5 hours after the transactional-memory branch was
merged, perhaps too close for everyone to have re-tested their patches.
Do you mind taking a look at this?
r181172 | matz | 2011-11-08 10:47:16 -0600 (Tue, 08 Nov 2011) | 44 lines
* gengtype.c (write_field_root): Avoid out-of-scope access of newv.
* tree-stdarg.c (execute_optimize_stdarg): Accept clobbers.
* tree.h (TREE_CLOBBER_P): New macro.
* gimple.h (gimple_clobber_p): New inline function.
* gimplify.c (gimplify_bind_expr): Add clobbers for all variables
that go out of scope and live in memory.
* tree-ssa-operands.c (get_expr_operands): Transfer volatility also
for constructors.
* cfgexpand.c (decl_to_stack_part): New static variable.
(add_stack_var): Allocate it, and remember mapping.
(fini_vars_expansion): Deallocate it.
(stack_var_conflict_p): Add early outs.
(visit_op, visit_conflict, add_scope_conflicts_1,
add_scope_conflicts): New static functions.
(expand_used_vars_for_block): Don't call add_stack_var_conflict, tidy.
(expand_used_vars): Add scope conflicts.
(expand_gimple_stmt_1): Expand clobbers to nothing.
(expand_debug_expr): Ditto.
