[backport from gcc-4.8/trunk r192651 <mikpe@it.uu.se>]

From: Eric Botcazou <ebotcazou at adacore dot com>
Subject: Follow-up to PR rtl-optimization/44194
Date: Sun, 21 Oct 2012 14:35:09 +0200
List-Archive: <http://gcc.gnu.org/ml/gcc-patches/>

As remarked by Richard S., we can now allow sibling calls in the PARALLEL case 
after the fix for PR rtl-optimization/44194.

Tested on x86_64-suse-linux and mips64el-linux-gnu, applied on the mainline.

gcc/

2012-10-21  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/44194
	* calls.c (expand_call): Allow sibling calls in the PARALLEL case.

--- gcc-4.7.2/gcc/calls.c.~1~	2012-10-21 16:34:54.000000000 +0200
+++ gcc-4.7.2/gcc/calls.c	2012-10-21 16:37:08.000000000 +0200
@@ -3240,9 +3240,6 @@ expand_call (tree exp, rtx target, int i
 	  else
 	    emit_group_store (target, valreg, rettype,
 			      int_size_in_bytes (rettype));
-
-	  /* We can not support sibling calls for this case.  */
-	  sibcall_failure = 1;
 	}
       else if (target
 	       && GET_MODE (target) == TYPE_MODE (rettype)