| From a85c78ea1393985fdb6e6678dea19135c553d341 Mon Sep 17 00:00:00 2001 |
| From: Mark H Weaver <mhw@netris.org> |
| Date: Fri, 19 Sep 2014 21:18:09 -0400 |
| Subject: [PATCH] VM: ASM_MUL for ARM: Add earlyclobber constraint to the SMULL |
| outputs. |
| |
| Reported by Rob Browning <rlb@defaultvalue.org>. |
| |
| * libguile/vm-i-scheme.c (ASM_MUL)[ARM]: Add earlyclobber (&) constraint |
| to the SMULL output registers. |
| |
| Author: Mark H Weaver <mhw@netris.org> |
| |
| Upstream-Status: Backport |
| |
| Signed-off-by: Jackie Huang <jackie.huang@windriver.com> |
| --- |
| libguile/vm-i-scheme.c | 5 ++--- |
| 1 file changed, 2 insertions(+), 3 deletions(-) |
| |
| diff --git a/libguile/vm-i-scheme.c b/libguile/vm-i-scheme.c |
| index 587aa95..162efab 100644 |
| --- a/libguile/vm-i-scheme.c |
| +++ b/libguile/vm-i-scheme.c |
| @@ -1,5 +1,4 @@ |
| -/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013, |
| - * 2014 Free Software Foundation, Inc. |
| +/* Copyright (C) 2001, 2009-2014 Free Software Foundation, Inc. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public License |
| @@ -363,7 +362,7 @@ VM_DEFINE_FUNCTION (149, ge, "ge?", 2) |
| { \ |
| scm_t_signed_bits rlo, rhi; \ |
| asm ("smull %0, %1, %2, %3\n" \ |
| - : "=r" (rlo), "=r" (rhi) \ |
| + : "=&r" (rlo), "=&r" (rhi) \ |
| : "r" (SCM_UNPACK (x) - scm_tc2_int), \ |
| "r" (SCM_I_INUM (y))); \ |
| if (SCM_LIKELY (SCM_SRS (rlo, 31) == rhi)) \ |
| -- |
| 2.3.5 |
| |