Viewing file:  ssa-dom-thread-13.c (1.21 KB) -rw-r--r--
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/* { dg-do compile { target size32plus } } */
/* { dg-options "-O2 -fdump-tree-dom2-details -w" } */
union tree_node;
typedef union tree_node *tree;
extern unsigned char tree_contains_struct[0xdead][64];
struct tree_base
{
int code:16;
};
struct tree_typed
{
tree type;
};
struct tree_type_common
{
tree main_variant;
};
extern tree build_target_option_node (void);
union tree_node
{
struct tree_base base;
struct tree_typed typed;
struct tree_type_common type_common;
};
tree
convert (tree type, tree expr)
{
tree e = expr;
int code = (type)->base.code;
const char *invalid_conv_diag;
tree ret;
if (tree_contains_struct[expr->base.code][(42)] != 1)
abort ();
if (type->type_common.main_variant == expr->typed.type->type_common.main_variant
&& (expr->typed.type->base.code != 123
|| e->base.code == 456))
return arf ();
if (expr->typed.type->base.code == 42)
error ("void value not ignored as it ought to be");
}
/* When the *->base.code tests in the second IF statement are false, we
know that expr->typed.base->base.code has the value 123. That allows
us to thread the test for the final IF statement on that path. */
/* { dg-final { scan-tree-dump-times "Threaded" 1 "dom2"} } */
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