don't you think that it would be easier to understand the number if you
printed it largest index first, as in the routines in wide-int-print.cc?
kenny
On 04/25/2014 09:58 AM, Richard Sandiford wrote:
This patch adds a dump () method so that it's easier to read the
contents of the various wide-int types in gdb. I've deliberately not
done any extension for "small_prec" cases because I think here
we want to see the raw values as much as possible.
Tested on x86_64-linux-gnu. OK to install?
Thanks,
Richard
Index: gcc/wide-int.cc
===================================================================
--- gcc/wide-int.cc 2014-04-25 14:48:03.263213403 +0100
+++ gcc/wide-int.cc 2014-04-25 14:48:25.186333842 +0100
@@ -2130,3 +2130,9 @@ wi::only_sign_bit_p (const wide_int_ref
void gt_ggc_mx (widest_int *) { }
void gt_pch_nx (widest_int *, void (*) (void *, void *), void *) { }
void gt_pch_nx (widest_int *) { }
+
+template void wide_int::dump () const;
+template void generic_wide_int <wide_int_ref_storage <false> >::dump () const;
+template void generic_wide_int <wide_int_ref_storage <true> >::dump () const;
+template void offset_int::dump () const;
+template void widest_int::dump () const;
Index: gcc/wide-int.h
===================================================================
--- gcc/wide-int.h 2014-04-25 14:34:54.823652619 +0100
+++ gcc/wide-int.h 2014-04-25 14:48:06.218229309 +0100
@@ -709,6 +709,9 @@ #define INCDEC_OPERATOR(OP, DELTA) \
#undef ASSIGNMENT_OPERATOR
#undef INCDEC_OPERATOR
+ /* Debugging functions. */
+ void dump () const;
+
static const bool is_sign_extended
= wi::int_traits <generic_wide_int <storage> >::is_sign_extended;
};
@@ -859,6 +862,23 @@ generic_wide_int <storage>::operator = (
return *this;
}
+/* Dump the contents of the integer to stderr, for debugging. */
+template <typename storage>
+void
+generic_wide_int <storage>::dump () const
+{
+ unsigned int len = this->get_len ();
+ const HOST_WIDE_INT *val = this->get_val ();
+ unsigned int precision = this->get_precision ();
+ fprintf (stderr, "[");
+ if (len * HOST_BITS_PER_WIDE_INT < precision)
+ fprintf (stderr, "...,");
+ for (unsigned int i = 0; i < len - 1; ++i)
+ fprintf (stderr, HOST_WIDE_INT_PRINT_HEX ",", val[len - 1 - i]);
+ fprintf (stderr, HOST_WIDE_INT_PRINT_HEX "], precision = %d\n",
+ val[0], precision);
+}
+
namespace wi
{
template <>
