From patchwork Sat Dec  1 22:46:09 2012
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Subject: Fix handling of EXPAND_MEMORY for TFmode memory constraint in asm
Date: Sat, 01 Dec 2012 12:46:09 -0000
From: John David Anglin <dave@hiauly1.hia.nrc.ca>
X-Patchwork-Id: 203156
Message-Id: <20121201224609.GA18582@hiauly1.hia.nrc.ca>
To: gcc-patches@gcc.gnu.org

The attached change fixes the compilation of the following asm
in libquadmath/math/fmaq.c:

asm volatile ("" : : "m" (v.value));

The issue arises because there is no support for directly loading TFmode
objects.

Ok for trunk?

Dave


Index: expr.c
===================================================================
--- expr.c	(revision 193685)
+++ expr.c	(working copy)
@@ -9928,7 +9928,8 @@
 		&& GET_MODE_CLASS (mode) != MODE_COMPLEX_INT
 		&& GET_MODE_CLASS (mode) != MODE_COMPLEX_FLOAT
 		&& modifier != EXPAND_CONST_ADDRESS
-		&& modifier != EXPAND_INITIALIZER)
+		&& modifier != EXPAND_INITIALIZER
+		&& modifier != EXPAND_MEMORY)
 	    /* If the field is volatile, we always want an aligned
 	       access.  Do this in following two situations:
 	       1. the access is not already naturally