commit 321c535105a182501b888f095f7ec4dbb5f3f6ae
author Richard Henderson <rth@twiddle.net> Mon Jan 21 13:32:02 2013 -0800
committer Richard Henderson <rth@twiddle.net> Tue Feb 19 23:05:18 2013 -0800
tree 432e174bd4f4404b2ee4f0107260333d797a828f
parent f1300734cbca515d30953b2c87e259fa378ea301

target-i386: Implement tzcnt and fix lzcnt

We weren't computing flags for lzcnt at all.  At the same time,
adjust the implementation of bsf/bsr to avoid the local branch,
using movcond instead.

Signed-off-by: Richard Henderson <rth@twiddle.net>

target-i386/helper.h

diff --git a/target-i386/helper.h b/target-i386/helper.h
index e1ecdb8..26a0cc8 100644
--- a/target-i386/helper.h
+++ b/target-i386/helper.h
@@ -195,9 +195,8 @@
 DEF_HELPER_3(fxsave, void, env, tl, int)
 DEF_HELPER_3(fxrstor, void, env, tl, int)
 
-DEF_HELPER_FLAGS_1(bsf, TCG_CALL_NO_RWG_SE, tl, tl)
-DEF_HELPER_FLAGS_1(bsr, TCG_CALL_NO_RWG_SE, tl, tl)
-DEF_HELPER_FLAGS_2(lzcnt, TCG_CALL_NO_RWG_SE, tl, tl, int)
+DEF_HELPER_FLAGS_1(clz, TCG_CALL_NO_RWG_SE, tl, tl)
+DEF_HELPER_FLAGS_1(ctz, TCG_CALL_NO_RWG_SE, tl, tl)
 DEF_HELPER_FLAGS_2(pdep, TCG_CALL_NO_RWG_SE, tl, tl, tl)
 DEF_HELPER_FLAGS_2(pext, TCG_CALL_NO_RWG_SE, tl, tl, tl)