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[autovect] Fix test failures


This patch fixes following test failures on powerpc-darwin.

comparing ... g++.sum
Tests that now work, but didn't before:

g++.old-deja/g++.other/builtins2.C (test for excess errors)

New tests that PASS:

g++.old-deja/g++.other/builtins2.C execution test

comparing ... gcc.sum
Tests that now work, but didn't before:

gcc.c-torture/execute/builtins/strncpy.c compilation, -O1
gcc.c-torture/execute/builtins/strncpy.c compilation, -O2
gcc.c-torture/execute/builtins/strncpy.c compilation, -O3 -fomit-frame-pointer
gcc.c-torture/execute/builtins/strncpy.c compilation, -O3 -g


New tests that PASS:

gcc.c-torture/execute/builtins/strncpy.c execution, -O1
gcc.c-torture/execute/builtins/strncpy.c execution, -O2
gcc.c-torture/execute/builtins/strncpy.c execution, -O3 -fomit-frame-pointer
gcc.c-torture/execute/builtins/strncpy.c execution, -O3 -g


comparing ... objc.sum
comparing ... libstdc++.sum
Tests that now work, but didn't before:

21_strings/char_traits/requirements/char/1.cc (test for excess errors)

New tests that PASS:

21_strings/char_traits/requirements/char/1.cc execution test

-
Devang

Index: gcc/tree-ssa-forwprop.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-forwprop.c,v
retrieving revision 2.8.14.2
diff -Idpatel.pbxuser -c -3 -p -r2.8.14.2 tree-ssa-forwprop.c
*** gcc/tree-ssa-forwprop.c     14 Dec 2004 08:45:57 -0000      2.8.14.2
--- gcc/tree-ssa-forwprop.c     16 Dec 2004 20:51:16 -0000
*************** replacable_use_in_cond_expr (tree stmt,
*** 515,527 ****
    op0 = TREE_OPERAND (stmt, 0);
    op1 = TREE_OPERAND (stmt, 1);

!   if (SSA_NAME_DEF_STMT (op0) == def_stmt
        && is_gimple_min_invariant (op1))
      {
        candidate_op = op0;
        other_op = op1;
      }
!   else if (SSA_NAME_DEF_STMT (op1) == def_stmt
           && is_gimple_min_invariant (op0))
      {
        candidate_op = op1;
--- 515,529 ----
    op0 = TREE_OPERAND (stmt, 0);
    op1 = TREE_OPERAND (stmt, 1);

!   if (TREE_CODE (op0) == SSA_NAME
!       && SSA_NAME_DEF_STMT (op0) == def_stmt
        && is_gimple_min_invariant (op1))
      {
        candidate_op = op0;
        other_op = op1;
      }
!   else if (TREE_CODE (op1) == SSA_NAME
!          && SSA_NAME_DEF_STMT (op1) == def_stmt
           && is_gimple_min_invariant (op0))
      {
        candidate_op = op1;


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