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-rw-r--r--gcc/tree-inline.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 1fe0847..636e37d 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -1444,7 +1444,16 @@ setup_one_parameter (copy_body_data *id, tree p, tree value, tree fn,
if (value
&& value != error_mark_node
&& !useless_type_conversion_p (TREE_TYPE (p), TREE_TYPE (value)))
- rhs = fold_build1 (NOP_EXPR, TREE_TYPE (p), value);
+ {
+ if (fold_convertible_p (TREE_TYPE (p), value))
+ rhs = fold_build1 (NOP_EXPR, TREE_TYPE (p), value);
+ else
+ /* ??? For valid (GIMPLE) programs we should not end up here.
+ Still if something has gone wrong and we end up with truly
+ mismatched types here, fall back to using a VIEW_CONVERT_EXPR
+ to not leak invalid GIMPLE to the following passes. */
+ rhs = fold_build1 (VIEW_CONVERT_EXPR, TREE_TYPE (p), value);
+ }
/* If the parameter is never assigned to, has no SSA_NAMEs created,
we may not need to create a new variable here at all. Instead, we may