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target-i386: Use CC_SRC2 for ADC and SBB

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Add another slot in ENV and store two of the three inputs.  This lets us
do less work when carry-out is not needed, and avoids the unpredictable
CC_OP after translating these insns.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2013-01-23 16:03:16 -08:00
parent db9f259772
commit 988c3eb0d6
5 changed files with 75 additions and 85 deletions
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4
target-i386/helper.h
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@ -1,7 +1,7 @@
#include "exec/def-helper.h"
DEF_HELPER_FLAGS_3(cc_compute_all, TCG_CALL_NO_RWG_SE, tl, tl, tl, int)
DEF_HELPER_FLAGS_3(cc_compute_c, TCG_CALL_NO_RWG_SE, tl, tl, tl, int)
DEF_HELPER_FLAGS_4(cc_compute_all, TCG_CALL_NO_RWG_SE, tl, tl, tl, tl, int)
DEF_HELPER_FLAGS_4(cc_compute_c, TCG_CALL_NO_RWG_SE, tl, tl, tl, tl, int)
DEF_HELPER_0(lock, void)
DEF_HELPER_0(unlock, void)