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authorRichard Henderson <rth@twiddle.net>2013-02-19 23:52:04 -0800
committerBlue Swirl <blauwirbel@gmail.com>2013-02-23 17:25:29 +0000
commitdc46d1c68aa107b8e3c95f66e87cd9d02e6452a9 (patch)
treeffedc11115d70b702bb4c3a38a299948165da0f8 /target-s390x
parent962415fcd5f8223a6fbc6f7bb8c5fdf2500f2f84 (diff)
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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>
Diffstat (limited to 'target-s390x')
-rw-r--r--target-s390x/helper.h1
-rw-r--r--target-s390x/int_helper.c8
-rw-r--r--target-s390x/translate.c3
3 files changed, 1 insertions, 11 deletions
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index dd90d93..0d80aa0 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -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)
diff --git a/target-s390x/int_helper.c b/target-s390x/int_helper.c
index 6858301..af16b21 100644
--- a/target-s390x/int_helper.c
+++ b/target-s390x/int_helper.c
@@ -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)
{
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index a57296c..bdf69a3 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -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;
}