[PATCH] Fix thinko in int type pretty printing

[Richard Guenther]

I should have consulted docs.

Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.

Richard.

2012-07-05  Richard Guenther  <rguent...@suse.de>

        * tree-pretty-print.c (dump_generic_node): Properly test
        the result of exact_log2.

Index: gcc/tree-pretty-print.c
===================================================================
*** gcc/tree-pretty-print.c     (revision 189288)
--- gcc/tree-pretty-print.c     (working copy)
*************** dump_generic_node (pretty_printer *buffe
*** 743,749 ****
                                      ? "unsigned long long"
                                      : "signed long long"));
                else if (TYPE_PRECISION (node) >= CHAR_TYPE_SIZE
!                        && exact_log2 (TYPE_PRECISION (node)))
                  {
                    pp_string (buffer, (TYPE_UNSIGNED (node) ? "uint" : "int"));
                    pp_decimal_int (buffer, TYPE_PRECISION (node));
--- 743,749 ----
                                      ? "unsigned long long"
                                      : "signed long long"));
                else if (TYPE_PRECISION (node) >= CHAR_TYPE_SIZE
!                        && exact_log2 (TYPE_PRECISION (node)) != -1)
                  {
                    pp_string (buffer, (TYPE_UNSIGNED (node) ? "uint" : "int"));
                    pp_decimal_int (buffer, TYPE_PRECISION (node));