From a85c78ea1393985fdb6e6678dea19135c553d341 Mon Sep 17 00:00:00 2001 From: Mark H Weaver 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 . * libguile/vm-i-scheme.c (ASM_MUL)[ARM]: Add earlyclobber (&) constraint to the SMULL output registers. --- 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 587aa9566..162efab0b 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)) \ -- 2.20.1