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From: Aurelien Jarno <aurelien@aurel32.net>
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Date: Mon, 15 Dec 2008 17:14:05 +0000
Subject: [Qemu-devel] [6048] target-ppc: correctly propagate NaN in division
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Revision: 6048
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6048
Author:   aurel32
Date:     2008-12-15 17:14:05 +0000 (Mon, 15 Dec 2008)

Log Message:
-----------
target-ppc: correctly propagate NaN in division

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Modified Paths:
--------------
    trunk/target-ppc/op_helper.c

Modified: trunk/target-ppc/op_helper.c
===================================================================
--- trunk/target-ppc/op_helper.c	2008-12-15 17:13:55 UTC (rev 6047)
+++ trunk/target-ppc/op_helper.c	2008-12-15 17:14:05 UTC (rev 6048)
@@ -1135,7 +1135,7 @@
     } else if (unlikely(isinfinity(farg1.d) && isinfinity(farg2.d))) {
         /* Division of infinity by infinity */
         farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI);
-    } else if (unlikely(iszero(farg2.d))) {
+    } else if (unlikely(!float64_is_nan(farg1.d) && iszero(farg2.d))) {
         if (iszero(farg1.d)) {
             /* Division of zero by zero */
             farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ);