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* [Bug middle-end/64720] New: Provide strict check for pure attribute
@ 2015-01-21 22:01 fizzbooze at gmail dot com
  2015-01-21 22:56 ` [Bug middle-end/64720] " pinskia at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: fizzbooze at gmail dot com @ 2015-01-21 22:01 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64720

            Bug ID: 64720
           Summary: Provide strict check for pure attribute
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: fizzbooze at gmail dot com

Currently an impure function can be attributed as 'pure' and still compile
correctly with no warnings or errors. i.e.:

// BEGIN CODE
int global = 0;

__attribute__((pure))
void foo() {
    global += 1; // this obviously violates the pure attribute
}

int main() {
    foo();
}
// END CODE

It would be nice to be able to enable some sort of warning or error for code
like this.


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug middle-end/64720] Provide strict check for pure attribute
  2015-01-21 22:01 [Bug middle-end/64720] New: Provide strict check for pure attribute fizzbooze at gmail dot com
@ 2015-01-21 22:56 ` pinskia at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2015-01-21 22:56 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64720

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

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

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Exact dup of bug 18487.

*** This bug has been marked as a duplicate of bug 18487 ***


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2015-01-21 22:01 [Bug middle-end/64720] New: Provide strict check for pure attribute fizzbooze at gmail dot com
2015-01-21 22:56 ` [Bug middle-end/64720] " pinskia at gcc dot gnu.org

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