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target-s390x: Use mulu2 for mlgr insn 

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-19 23:52:04 -08:00 committed by Blue Swirl
parent 962415fcd5
commit dc46d1c68a
3 changed files with 1 additions and 11 deletions
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1
target-s390x/helper.h
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@ -8,7 +8,6 @@ DEF_HELPER_FLAGS_4(mvc, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(clc, TCG_CALL_NO_WG, i32, env, i32, i64, i64)
DEF_HELPER_3(mvcl, i32, env, i32, i32)
DEF_HELPER_FLAGS_4(clm, TCG_CALL_NO_WG, i32, env, i32, i32, i64)
DEF_HELPER_FLAGS_3(mul128, TCG_CALL_NO_RWG, i64, env, i64, i64)
DEF_HELPER_FLAGS_3(divs32, TCG_CALL_NO_WG, s64, env, s64, s64)
DEF_HELPER_FLAGS_3(divu32, TCG_CALL_NO_WG, i64, env, i64, i64)
DEF_HELPER_FLAGS_3(divs64, TCG_CALL_NO_WG, s64, env, s64, s64)

8
target-s390x/int_helper.c
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@ -29,14 +29,6 @@
#define HELPER_LOG(x...)
#endif
/* 64/64 -> 128 unsigned multiplication */
uint64_t HELPER(mul128)(CPUS390XState *env, uint64_t v1, uint64_t v2)
{
uint64_t reth;
mulu64(&env->retxl, &reth, v1, v2);
return reth;
}
/* 64/32 -> 32 signed division */
int64_t HELPER(divs32)(CPUS390XState *env, int64_t a, int64_t b64)
{

3
target-s390x/translate.c
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@ -2566,8 +2566,7 @@ static ExitStatus op_mul(DisasContext *s, DisasOps *o)
static ExitStatus op_mul128(DisasContext *s, DisasOps *o)
{
gen_helper_mul128(o->out, cpu_env, o->in1, o->in2);
return_low128(o->out2);
tcg_gen_mulu2_i64(o->out2, o->out, o->in1, o->in2);
return NO_EXIT;
}