本文整理汇总了C++中hash::merge_hash方法的典型用法代码示例。如果您正苦于以下问题：C++ hash::merge_hash方法的具体用法？C++ hash::merge_hash怎么用？C++ hash::merge_hash使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类hash的用法示例。
在下文中一共展示了hash::merge_hash方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: switch
static void
add_hashable_expr (const struct hashable_expr *expr, hash &hstate)
{
switch (expr->kind)
{
case EXPR_SINGLE:
inchash::add_expr (expr->ops.single.rhs, hstate);
break;
case EXPR_UNARY:
hstate.add_object (expr->ops.unary.op);
/* Make sure to include signedness in the hash computation.
Don't hash the type, that can lead to having nodes which
compare equal according to operand_equal_p, but which
have different hash codes. */
if (CONVERT_EXPR_CODE_P (expr->ops.unary.op)
|| expr->ops.unary.op == NON_LVALUE_EXPR)
hstate.add_int (TYPE_UNSIGNED (expr->type));
inchash::add_expr (expr->ops.unary.opnd, hstate);
break;
case EXPR_BINARY:
hstate.add_object (expr->ops.binary.op);
if (commutative_tree_code (expr->ops.binary.op))
inchash::add_expr_commutative (expr->ops.binary.opnd0,
expr->ops.binary.opnd1, hstate);
else
{
inchash::add_expr (expr->ops.binary.opnd0, hstate);
inchash::add_expr (expr->ops.binary.opnd1, hstate);
}
break;
case EXPR_TERNARY:
hstate.add_object (expr->ops.ternary.op);
if (commutative_ternary_tree_code (expr->ops.ternary.op))
inchash::add_expr_commutative (expr->ops.ternary.opnd0,
expr->ops.ternary.opnd1, hstate);
else
{
inchash::add_expr (expr->ops.ternary.opnd0, hstate);
inchash::add_expr (expr->ops.ternary.opnd1, hstate);
}
inchash::add_expr (expr->ops.ternary.opnd2, hstate);
break;
case EXPR_CALL:
{
size_t i;
enum tree_code code = CALL_EXPR;
gcall *fn_from;
hstate.add_object (code);
fn_from = expr->ops.call.fn_from;
if (gimple_call_internal_p (fn_from))
hstate.merge_hash ((hashval_t) gimple_call_internal_fn (fn_from));
else
inchash::add_expr (gimple_call_fn (fn_from), hstate);
for (i = 0; i < expr->ops.call.nargs; i++)
inchash::add_expr (expr->ops.call.args[i], hstate);
}
break;
case EXPR_PHI:
{
size_t i;
for (i = 0; i < expr->ops.phi.nargs; i++)
inchash::add_expr (expr->ops.phi.args[i], hstate);
}
break;
default:
gcc_unreachable ();
}
}