commit 7af525af01b9615c4f4df5da2e8a50f2fe00b023
author Richard Henderson <rth@twiddle.net> Fri Jun 16 15:33:28 2017 -0700
committer Richard Henderson <richard.henderson@linaro.org> Wed Sep 06 07:24:41 2017 -0700
tree 2d284ddff20cf18d5110e24c2f2e5c2cc3dce54c
parent c2097136ad6e3f476fd177fc3d2e48fa6bffacfd

tcg/s390: Use load-on-condition-2 facility

This allows LOAD HALFWORD IMMEDIATE ON CONDITION,
eliminating one insn in some common cases.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>

tcg/s390/tcg-target.h

diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h
index f7619a9..bedda5e 100644
--- a/tcg/s390/tcg-target.h
+++ b/tcg/s390/tcg-target.h
@@ -59,6 +59,7 @@
 #define FACILITY_LOAD_ON_COND         (1ULL << (63 - 45))
 #define FACILITY_FAST_BCR_SER         FACILITY_LOAD_ON_COND
 #define FACILITY_DISTINCT_OPS         FACILITY_LOAD_ON_COND
+#define FACILITY_LOAD_ON_COND2        (1ULL << (63 - 53))
 
 extern uint64_t s390_facilities;