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-rw-r--r--gcc/cfgexpand.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 5f14d81..c0cbeb3 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -1215,8 +1215,11 @@ expand_one_var (tree var, bool toplevel, bool really_expand)
we conservatively assume it will be on stack even if VAR is
eventually put into register after RA pass. For non-automatic
variables, which won't be on stack, we collect alignment of
- type and ignore user specified alignment. */
- if (TREE_STATIC (var) || DECL_EXTERNAL (var))
+ type and ignore user specified alignment. Similarly for
+ SSA_NAMEs for which use_register_for_decl returns true. */
+ if (TREE_STATIC (var)
+ || DECL_EXTERNAL (var)
+ || (TREE_CODE (origvar) == SSA_NAME && use_register_for_decl (var)))
align = MINIMUM_ALIGNMENT (TREE_TYPE (var),
TYPE_MODE (TREE_TYPE (var)),
TYPE_ALIGN (TREE_TYPE (var)));