[Bug optimization/8776] loop invariants are not removed (most likely)

[dhazeghi@yahoo.com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8776


dhazeghi@yahoo.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
  GCC build triplet|                            |i686-pc-linux-gnu
   GCC host triplet|                            |i686-pc-linux-gnu
 GCC target triplet|                            |i686-linux-pc-gnu
   Last reconfirmed|0000-00-00 00:00:00         |2003-06-04 19:50:50
               date|                            |


------- Additional Comments From dhazeghi@yahoo.com  2003-06-04 19:50 -------
Hello,

your problem as stated is fixed on gcc 3.3 branch and mainline. Please note that -O9 is the same 
thing as -O3 (-On for n>3 is identical to -O3). Second, your code performs identically for me with 
-O3, -O3 -DSLOW1 and -O3 -DSLOW2 with gcc 3.3. With gcc mainline, things are somewhat more 
bizarre. With -O3, or -O3 -DSLOW1, the code is about 50% slower than with gcc 3.3, but with -O3 
-DSLOW2 it's the same speed as gcc 3.3 (ie faster than the with the other two options). Very 
strange.

Dara



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