------- Comment #19 from zadeck at naturalbridge dot com  2007-07-26 11:51 
-------
Subject: Re:  [4.3 regression]: gfortran.dg/auto_array_1.f90

This patch extends the fix in
http://gcc.gnu.org/ml/gcc-patches/2007-06/msg01557.html
to handle the case of clobbers inside conditional calls.

This problem caused the regression of gfortran.dg/matmul_3.f90 on the
ia-64 in addition to the regression cited in this pr.

Tested on ppc-32, ia-64 and x86-64.

2007-07-26  Kenneth Zadeck <[EMAIL PROTECTED]>

    PR middle-end/32749

    * df-problems.c (df_note_bb_compute): Handle case of clobber
    inside conditional call.  


ok to commit?

kenny
Index: df-problems.c
===================================================================
--- df-problems.c       (revision 126918)
+++ df-problems.c       (working copy)
@@ -3989,7 +3989,7 @@ df_note_bb_compute (unsigned int bb_inde
              /* However a may or must clobber still needs to kill the
                 reg so that REG_DEAD notes are later placed
                 appropriately.  */ 
-             else 
+             else if (!(DF_REF_FLAGS (def) & (DF_REF_PARTIAL |
DF_REF_CONDITIONAL)))
                bitmap_clear_bit (live, DF_REF_REGNO (def));
            }
        }


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32749

Reply via email to