From: Jason Merrill <jason@redhat.com>
Date: Fri, 8 Jan 2016 16:01:17 +0000 (-0500)
Subject: constexpr.c (cxx_eval_call_expression): Remove convert_to_void workaround.
X-Git-Tag: basepoints/gcc-7~1765
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=550c5f8a7e3e2487b06ddbe9da3dc65c5c7e00f1;p=thirdparty%2Fgcc.git

constexpr.c (cxx_eval_call_expression): Remove convert_to_void workaround.

	* constexpr.c (cxx_eval_call_expression): Remove convert_to_void
	workaround.

From-SVN: r232168
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 4e32d0dcd21a..6b0eae6325ed 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
 2016-01-08  Jason Merrill  <jason@redhat.com>
 
+	* constexpr.c (cxx_eval_call_expression): Remove convert_to_void
+	workaround.
+
 	PR c++/68983
 	PR c++/67557
 	* cvt.c (convert_to_void): Don't strip a TARGET_EXPR of
diff --git a/gcc/cp/constexpr.c b/gcc/cp/constexpr.c
index bcf26a64f379..c6c34671ccd1 100644
--- a/gcc/cp/constexpr.c
+++ b/gcc/cp/constexpr.c
@@ -1285,16 +1285,6 @@ cxx_eval_call_expression (const constexpr_ctx *ctx, tree t,
       ctx->values->put (new_ctx.object, ctor);
       ctx = &new_ctx;
     }
-  else if (DECL_BY_REFERENCE (DECL_RESULT (fun))
-	   && TREE_CODE (t) != AGGR_INIT_EXPR)
-    {
-      /* convert_to_void stripped our AGGR_INIT_EXPR, in which case we don't
-	 care about a constant value.  ??? we could still optimize away the
-	 call.  */
-      gcc_assert (ctx->quiet && !ctx->object);
-      *non_constant_p = true;
-      return t;
-    }
 
   bool non_constant_args = false;
   cxx_bind_parameters_in_call (ctx, t, &new_call,