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detect fully/partly redundant by inspection node index ...
[libfirm]
/
ir
/
opt
/
return.c
diff --git
a/ir/opt/return.c
b/ir/opt/return.c
index
ce580ee
..
49088db
100644
(file)
--- a/
ir/opt/return.c
+++ b/
ir/opt/return.c
@@
-190,6
+190,8
@@
static int can_move_ret(ir_node *ret) {
/* check, that predecessors are Jmps */
n = get_Block_n_cfgpreds(retbl);
/* check, that predecessors are Jmps */
n = get_Block_n_cfgpreds(retbl);
+ if (n <= 1)
+ return 0;
for (i = 0; i < n; ++i) {
ir_node *pred = get_Block_cfgpred(retbl, i);
for (i = 0; i < n; ++i) {
ir_node *pred = get_Block_cfgpred(retbl, i);
@@
-202,9
+204,7
@@
static int can_move_ret(ir_node *ret) {
set_Block_cfgpred(retbl, i, jmp);
}
}
set_Block_cfgpred(retbl, i, jmp);
}
}
-
- /* if we have 0 control flow predecessors, we cannot move :-) */
- return n > 0;
+ return 1;
}
/*
}
/*