re PR tree-optimization/22171 (gcc-4.0-20050623 internal compiler error in linux...

	PR 22171
	* tree-ssa-operands (get_expr_operands): Check s_ann for NULL
	before use.

From-SVN: r101293

diff --git a/gcc/tree-ssa-operands.c b/gcc/tree-ssa-operands.c
index 2e263cfa1b30c1c38f56226c7aa0063a3929381e..ecd32a6b4f0248f49425748de027e4cc000bad0a 100644 (file)
--- a/gcc/tree-ssa-operands.c
+++ b/gcc/tree-ssa-operands.c
@@ -1347,7 +1347,7 @@ get_expr_operands (tree stmt, tree *expr_p, int flags)
        
        if (code == COMPONENT_REF)
          {
-           if (TREE_THIS_VOLATILE (TREE_OPERAND (expr, 1)))
+           if (s_ann && TREE_THIS_VOLATILE (TREE_OPERAND (expr, 1)))
              s_ann->has_volatile_ops = true; 
            get_expr_operands (stmt, &TREE_OPERAND (expr, 2), opf_none);
          }