https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83277
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2017-12-05
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Target Milestone|--- |8.0
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Testing patch.
Index: gcc/graphite-isl-ast-to-gimple.c
===================================================================
--- gcc/graphite-isl-ast-to-gimple.c (revision 255402)
+++ gcc/graphite-isl-ast-to-gimple.c (working copy)
@@ -1137,8 +1137,10 @@ should_copy_to_new_region (gimple *stmt,
if (is_gimple_assign (stmt)
&& (lhs = gimple_assign_lhs (stmt))
&& TREE_CODE (lhs) == SSA_NAME
- && is_gimple_reg (lhs)
- && scev_analyzable_p (lhs, region->region))
+ && scev_analyzable_p (lhs, region->region)
+ /* But to code-generate liveouts - liveout PHI generation is
+ in generic sese.c code that cannot do code generation. */
+ && ! bitmap_bit_p (region->liveout, SSA_NAME_VERSION (lhs)))
return false;
return true;
