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[PATCH v1 05/20] s390x/tcg: Implement 32/128 bit for VECTOR FP DIVIDE


From: David Hildenbrand
Subject: [PATCH v1 05/20] s390x/tcg: Implement 32/128 bit for VECTOR FP DIVIDE
Date: Wed, 30 Sep 2020 16:55:08 +0200

Just like VECTOR FP ADD.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/helper.h           |  3 +++
 target/s390x/translate_vx.c.inc | 18 +++++++++++++++++-
 target/s390x/vec_fpu_helper.c   | 28 +++++++++++++++-------------
 3 files changed, 35 insertions(+), 14 deletions(-)

diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 3d59f143e0..3dfd480fc1 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -274,8 +274,11 @@ DEF_HELPER_FLAGS_4(gvec_vcgd64, TCG_CALL_NO_WG, void, ptr, 
cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vcgd64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vclgd64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vclgd64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
+DEF_HELPER_FLAGS_5(gvec_vfd32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
+DEF_HELPER_FLAGS_5(gvec_vfd32s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, 
i32)
 DEF_HELPER_FLAGS_5(gvec_vfd64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
 DEF_HELPER_FLAGS_5(gvec_vfd64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, 
i32)
+DEF_HELPER_FLAGS_5(gvec_vfd128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, 
i32)
 DEF_HELPER_FLAGS_4(gvec_vfi64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vfi64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
 DEF_HELPER_FLAGS_4(gvec_vfll32, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc
index 2ba2170b16..ea1b2732bc 100644
--- a/target/s390x/translate_vx.c.inc
+++ b/target/s390x/translate_vx.c.inc
@@ -2527,7 +2527,23 @@ static DisasJumpType op_vfa(DisasContext *s, DisasOps *o)
         }
         break;
     case 0xe5:
-        fn = se ? gen_helper_gvec_vfd64s : gen_helper_gvec_vfd64;
+        switch (fpf) {
+        case FPF_SHORT:
+            if (s390_has_feat(S390_FEAT_VECTOR_ENH)) {
+                fn = se ? gen_helper_gvec_vfd32s : gen_helper_gvec_vfd32;
+            }
+            break;
+        case FPF_LONG:
+            fn = se ? gen_helper_gvec_vfd64s : gen_helper_gvec_vfd64;
+            break;
+        case FPF_EXT:
+            if (s390_has_feat(S390_FEAT_VECTOR_ENH)) {
+                fn = gen_helper_gvec_vfd128;
+            }
+            break;
+        default:
+            break;
+        }
         break;
     case 0xe7:
         fn = se ? gen_helper_gvec_vfm64s : gen_helper_gvec_vfm64;
diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c
index ae803ba602..cfa143b62a 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -411,22 +411,24 @@ void HELPER(gvec_vclgd64s)(void *v1, const void *v2, 
CPUS390XState *env,
     vop64_2(v1, v2, env, true, XxC, erm, vclgd64, GETPC());
 }
 
-static uint64_t vfd64(uint64_t a, uint64_t b, float_status *s)
-{
-    return float64_div(a, b, s);
-}
-
-void HELPER(gvec_vfd64)(void *v1, const void *v2, const void *v3,
-                        CPUS390XState *env, uint32_t desc)
-{
-    vop64_3(v1, v2, v3, env, false, vfd64, GETPC());
+#define DEF_GVEC_FVD(BITS)                                                     
\
+void HELPER(gvec_vfd##BITS)(void *v1, const void *v2, const void *v3,          
\
+                            CPUS390XState *env, uint32_t desc)                 
\
+{                                                                              
\
+    vop##BITS##_3(v1, v2, v3, env, false, float##BITS##_div, GETPC());         
\
 }
+DEF_GVEC_FVD(32)
+DEF_GVEC_FVD(64)
+DEF_GVEC_FVD(128)
 
-void HELPER(gvec_vfd64s)(void *v1, const void *v2, const void *v3,
-                         CPUS390XState *env, uint32_t desc)
-{
-    vop64_3(v1, v2, v3, env, true, vfd64, GETPC());
+#define DEF_GVEC_FVD_S(BITS)                                                   
\
+void HELPER(gvec_vfd##BITS##s)(void *v1, const void *v2, const void *v3,       
\
+                               CPUS390XState *env, uint32_t desc)              
\
+{                                                                              
\
+    vop##BITS##_3(v1, v2, v3, env, true, float##BITS##_div, GETPC());          
\
 }
+DEF_GVEC_FVD_S(32)
+DEF_GVEC_FVD_S(64)
 
 static uint64_t vfi64(uint64_t a, float_status *s)
 {
-- 
2.26.2




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