Handle DM_NORETURN in ast2firm.

[r21840]

diff --git a/ast2firm.c b/ast2firm.c
index 2cef5f9..7759ab3 100644 (file)
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -1662,6 +1662,15 @@ static ir_node *call_expression_to_firm(const call_expression_t *call)
                result           = new_d_Proj(dbgi, resproj, mode, 0);
        }
 
+       if (function->kind == EXPR_REFERENCE &&
+           function->reference.declaration->modifiers & DM_NORETURN) {
+               /* A dead end:  Keep the Call and the Block.  Also place all further
+                * nodes into a new and unreachable block. */
+               keep_alive(node);
+               keep_alive(get_cur_block());
+               new_Block(0, NULL);
+       }
+
        return result;
 }