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compiler: Fix test for constant argument too large for make. 

From-SVN: r203338
This commit is contained in:
Ian Lance Taylor 2013-10-10 03:51:11 +00:00
parent 3d317d48a7
commit d6394e2bbc
1 changed files with 17 additions and 2 deletions
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19
gcc/go/gofrontend/expressions.cc
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@ -7542,7 +7542,7 @@ Builtin_call_expression::check_int_value(Expression* e, bool is_length)
switch (nc.to_unsigned_long(&v))
{
case Numeric_constant::NC_UL_VALID:
return true;
break;
case Numeric_constant::NC_UL_NOTINT:
error_at(e->location(), "non-integer %s argument to make",
is_length ? "len" : "cap");
@ -7554,8 +7554,23 @@ Builtin_call_expression::check_int_value(Expression* e, bool is_length)
case Numeric_constant::NC_UL_BIG:
// We don't want to give a compile-time error for a 64-bit
// value on a 32-bit target.
return true;
break;
}
mpz_t val;
if (!nc.to_int(&val))
go_unreachable();
int bits = mpz_sizeinbase(val, 2);
mpz_clear(val);
Type* int_type = Type::lookup_integer_type("int");
if (bits >= int_type->integer_type()->bits())
{
error_at(e->location(), "%s argument too large for make",
is_length ? "len" : "cap");
return false;
}
return true;
}
if (e->type()->integer_type() != NULL)