[Bug c/61271] 3 * possible coding error with logical not (!)

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61271

--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
Some more:

4.

trunk/gcc/expr.c:10660:10: warning: logical not is only applied to the left
hand side of this comparison [-Wlogical-not-parentheses]

Source code

      || !exact_log2 (tree_to_uhwi (TREE_OPERAND (offset, 1)) + 1) < 0)

Maybe

      || exact_log2 (tree_to_uhwi (TREE_OPERAND (offset, 1)) + 1) >= 0)

5.

trunk/gcc/ipa-devirt.c:1122:11: warning: logical not is only applied to the
left hand side of this comparison [-Wlogical-not-parentheses]

Source code is

          || !tree_to_shwi (TYPE_SIZE (subtype)) <= 0)

Maybe

          || tree_to_shwi (TYPE_SIZE (subtype)) > 0)

6.

trunk/gcc/ira-color.c:3851:9: warning: logical not is only applied to the left
hand side of this comparison [-Wlogical-not-parentheses]

Source code is

        || !FRAME_GROWS_DOWNWARD == STACK_GROWS_DOWNWARD ? diff : -diff);

Maybe

        || ((FRAME_GROWS_DOWNWARD != STACK_GROWS_DOWNWARD) ? diff : -diff));