https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71937
--- Comment #10 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #9)
> So does -fno-tree-coalesce-vars help the compile time/memory here?
No. Even:
diff --git a/gcc/tree-ssa-coalesce.c b/gcc/tree-ssa-coalesce.c
index 34c3fa1..c5fddd0 100644
--- a/gcc/tree-ssa-coalesce.c
+++ b/gcc/tree-ssa-coalesce.c
@@ -1813,7 +1813,7 @@ coalesce_ssa_name (void)
/* If this optimization is disabled, we need to coalesce all the
names originating from the same SSA_NAME_VAR so debug info
remains undisturbed. */
- if (!flag_tree_coalesce_vars)
+ if (false)
{
hash_table<ssa_name_var_hash> ssa_name_hash (10);
doesn't help.
