| Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | From a85c78ea1393985fdb6e6678dea19135c553d341 Mon Sep 17 00:00:00 2001 |
| 2 | From: Mark H Weaver <mhw@netris.org> |
| 3 | Date: Fri, 19 Sep 2014 21:18:09 -0400 |
| 4 | Subject: [PATCH] VM: ASM_MUL for ARM: Add earlyclobber constraint to the SMULL |
| 5 | outputs. |
| 6 | |
| 7 | Reported by Rob Browning <rlb@defaultvalue.org>. |
| 8 | |
| 9 | * libguile/vm-i-scheme.c (ASM_MUL)[ARM]: Add earlyclobber (&) constraint |
| 10 | to the SMULL output registers. |
| 11 | |
| 12 | Author: Mark H Weaver <mhw@netris.org> |
| 13 | |
| 14 | Upstream-Status: Backport |
| 15 | |
| 16 | Signed-off-by: Jackie Huang <jackie.huang@windriver.com> |
| 17 | --- |
| 18 | libguile/vm-i-scheme.c | 5 ++--- |
| 19 | 1 file changed, 2 insertions(+), 3 deletions(-) |
| 20 | |
| 21 | diff --git a/libguile/vm-i-scheme.c b/libguile/vm-i-scheme.c |
| 22 | index 587aa95..162efab 100644 |
| 23 | --- a/libguile/vm-i-scheme.c |
| 24 | +++ b/libguile/vm-i-scheme.c |
| 25 | @@ -1,5 +1,4 @@ |
| 26 | -/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013, |
| 27 | - * 2014 Free Software Foundation, Inc. |
| 28 | +/* Copyright (C) 2001, 2009-2014 Free Software Foundation, Inc. |
| 29 | * |
| 30 | * This library is free software; you can redistribute it and/or |
| 31 | * modify it under the terms of the GNU Lesser General Public License |
| 32 | @@ -363,7 +362,7 @@ VM_DEFINE_FUNCTION (149, ge, "ge?", 2) |
| 33 | { \ |
| 34 | scm_t_signed_bits rlo, rhi; \ |
| 35 | asm ("smull %0, %1, %2, %3\n" \ |
| 36 | - : "=r" (rlo), "=r" (rhi) \ |
| 37 | + : "=&r" (rlo), "=&r" (rhi) \ |
| 38 | : "r" (SCM_UNPACK (x) - scm_tc2_int), \ |
| 39 | "r" (SCM_I_INUM (y))); \ |
| 40 | if (SCM_LIKELY (SCM_SRS (rlo, 31) == rhi)) \ |
| 41 | -- |
| 42 | 2.3.5 |
| 43 | |