[Bug c++/67208] New: bool const to float* function argument allowed

[Bug c++/67208] New: bool const to float* function argument allowed

[andrew.larson@cpfd-software.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67208

            Bug ID: 67208
           Summary: bool const to float* function argument allowed
           Product: gcc
           Version: 4.6.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: andrew.larson@cpfd-software.com
  Target Milestone: ---

Created attachment 36182
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36182&action=edit
Example to compile and run to see said behavior.

See attachment for repo.
(1)  Passing a bool const variable to function(float*) compiles.
(2)  Passing a bool variable to function(float*) does not compile.

Compiler should treat (1) as an error.

[Bug c++/67208] bool const to float* function argument allowed

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67208

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
GCC 4.6 has not been supported for some years, so reporting bugs against it
here is not going to change anything.

Your code is valid in C++03, but not C++11.

It is correctly rejected by GCC 4.7+ in C++11 mode:

main.cpp:11:14: error: cannot convert ‘const bool’ to ‘float*’ for argument ‘1’
to ‘void function(float*)’
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Subject: [Bug middle-end/67133] [6 Regression] ICE at -Os and above on x86_64-linux-gnu in gimple_op, at gimple.h:2274
Date: Thu, 13 Aug 2015 16:25:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idg133

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot gnu.org
   Target Milestone|---                         |6.0

--- Comment #15 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
The ICE in description with -Os -fisolate-erroneous-paths-dereference
-fisolate-erroneous-paths-attribute started with r220417.  I think it's pretty
clear that the new maybe_remove_unused_call_args function removes arguments,
but doesn't drop the nonnull attribute.

All right, let me look into both of these issues.