[PULL 07/37] s390x/tcg: Simplify vftci64() handling

[Cornelia Huck]

From: David Hildenbrand <david@redhat.com>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210608092337.12221-7-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 target/s390x/helper.h           |  1 -
 target/s390x/translate_vx.c.inc |  7 ++-----
 target/s390x/vec_fpu_helper.c   | 29 +++++++++++------------------
 3 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 02a16924a7b7..e83268023635 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -273,7 +273,6 @@ DEF_HELPER_FLAGS_6(gvec_vfms64s, TCG_CALL_NO_WG, void, ptr, 
cptr, cptr, cptr, en
 DEF_HELPER_FLAGS_4(gvec_vfsq64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_5(gvec_vfs64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
 DEF_HELPER_4(gvec_vftci64, void, ptr, cptr, env, i32)
-DEF_HELPER_4(gvec_vftci64s, void, ptr, cptr, env, i32)
 
 #ifndef CONFIG_USER_ONLY
 DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc
index 604ae11024a9..1404471881ee 100644
--- a/target/s390x/translate_vx.c.inc
+++ b/target/s390x/translate_vx.c.inc
@@ -2680,17 +2680,14 @@ static DisasJumpType op_vftci(DisasContext *s, DisasOps 
*o)
     const uint16_t i3 = get_field(s, i3);
     const uint8_t fpf = get_field(s, m4);
     const uint8_t m5 = get_field(s, m5);
-    gen_helper_gvec_2_ptr *fn = gen_helper_gvec_vftci64;
 
     if (fpf != FPF_LONG || extract32(m5, 0, 3)) {
         gen_program_exception(s, PGM_SPECIFICATION);
         return DISAS_NORETURN;
     }
 
-    if (extract32(m5, 3, 1)) {
-        fn = gen_helper_gvec_vftci64s;
-    }
-    gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2), cpu_env, i3, fn);
+    gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2), cpu_env,
+                   deposit32(m5, 4, 12, i3), gen_helper_gvec_vftci64);
     set_cc_static(s);
     return DISAS_NEXT;
 }
diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c
index 01ee41d1543c..2ced6fcfaf53 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -413,13 +413,15 @@ void HELPER(gvec_vfms64s)(void *v1, const void *v2, const 
void *v3,
     vfma64(v1, v2, v3, v4, env, true, float_muladd_negate_c, GETPC());
 }
 
-static int vftci64(S390Vector *v1, const S390Vector *v2, CPUS390XState *env,
-                   bool s, uint16_t i3)
+void HELPER(gvec_vftci64)(void *v1, const void *v2, CPUS390XState *env,
+                          uint32_t desc)
 {
+    const uint16_t i3 = extract32(simd_data(desc), 4, 12);
+    const bool s = extract32(simd_data(desc), 3, 1);
     int i, match = 0;
 
     for (i = 0; i < 2; i++) {
-        float64 a = s390_vec_read_element64(v2, i);
+        const float64 a = s390_vec_read_float64(v2, i);
 
         if (float64_dcmask(env, a) & i3) {
             match++;
@@ -432,20 +434,11 @@ static int vftci64(S390Vector *v1, const S390Vector *v2, 
CPUS390XState *env,
         }
     }
 
-    if (match) {
-        return s || match == 2 ? 0 : 1;
+    if (match == 2 || (s && match)) {
+        env->cc_op = 0;
+    } else if (match) {
+        env->cc_op = 1;
+    } else {
+        env->cc_op = 3;
     }
-    return 3;
-}
-
-void HELPER(gvec_vftci64)(void *v1, const void *v2, CPUS390XState *env,
-                          uint32_t desc)
-{
-    env->cc_op = vftci64(v1, v2, env, false, simd_data(desc));
-}
-
-void HELPER(gvec_vftci64s)(void *v1, const void *v2, CPUS390XState *env,
-                           uint32_t desc)
-{
-    env->cc_op = vftci64(v1, v2, env, true, simd_data(desc));
 }
-- 
2.31.1