[Bug middle-end/17052] New: altivec varargs failure if no optimization

["janis187 at us dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Tests gcc.dg/altivec-[237].c fail with a seg fault trying to access
an integer argument that follows a vector float argument.  They fail
without optimization but pass when compiling with -O1 or any higher
level of optimization.  They fail for 32-bit code but not 64-bit code.
The failures begin with the tree-ssa merge.
                                                                                
The test case is extracted from altivec-2.c.  I last tested with
mainline sources as of Mon Aug 16 18:14:11 UTC 2004.

-- 
           Summary: altivec varargs failure if no optimization
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis187 at us dot ibm dot com
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: powerpc64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17052