Evaluate side-effects in expand_ifn_va_arg_1

2015-04-28  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/65818
	* tree-stdarg.c (expand_ifn_va_arg_1): Ensure that side-effects are
	evaluated.

From-SVN: r222509

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1ffe147b0cd8b7cf91c2899f64a94f932e34521a..c35f52375a00fd51d98e23f8827feaac1af92e43 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-04-28  Tom de Vries  <tom@codesourcery.com>
+
+       PR tree-optimization/65818
+       * tree-stdarg.c (expand_ifn_va_arg_1): Ensure that side-effects are
+       evaluated.
+
 2015-04-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
        * calls.c (save_fixed_argument_area): Don't check

diff --git a/gcc/tree-stdarg.c b/gcc/tree-stdarg.c
index 16a9e2cf66f4a1c5ca775fcbbdd288899759c30f..1356374ba1401959b95947c7068849d85e086c6d 100644 (file)
--- a/gcc/tree-stdarg.c
+++ b/gcc/tree-stdarg.c
@@ -1078,6 +1078,8 @@ expand_ifn_va_arg_1 (function *fun)
               types.  */
            gimplify_assign (lhs, expr, &pre);
          }
+       else
+         gimplify_expr (&expr, &pre, &post, is_gimple_lvalue, fb_lvalue);
 
        pop_gimplify_context (NULL);