From 65a1148bdd57d02fff9b0b5a2cc2627a5dfd6445 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Sat, 14 Nov 2009 19:20:19 -0800 Subject: Use a simple loop on data shorter than software pipeline. When data is shorter than software pipeline, recovery may fail. This patch avoids it by using a simple loop on data shorter than software pipeline. --- sysdeps/ia64/memchr.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sysdeps') diff --git a/sysdeps/ia64/memchr.S b/sysdeps/ia64/memchr.S index cd062b2dd5..e721e1714f 100644 --- a/sysdeps/ia64/memchr.S +++ b/sysdeps/ia64/memchr.S @@ -71,7 +71,8 @@ ENTRY(__memchr) cmp.ne p7, p0 = r0, r0 // clear p7 extr.u chr = in1, 0, 8 // chr = (unsigned char) in1 mov len = in2 - cmp.gtu p6, p0 = 16, in2 // use a simple loop for short + // use a simple loop on data shorter than software pipeline + cmp.gtu p6, p0 = ((MEMLAT + 1) * 8), in2 (p6) br.cond.spnt .srchfew ;; // searches sub loopcnt = 8, tmp // loopcnt = 8 - tmp cmp.eq p6, p0 = tmp, r0 -- cgit 1.4.1