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[Qemu-devel] [PATCH v3 19/31] tcg/i386: Support vector scalar shift opco


From: Richard Henderson
Subject: [Qemu-devel] [PATCH v3 19/31] tcg/i386: Support vector scalar shift opcodes
Date: Fri, 3 May 2019 22:52:48 -0700

Signed-off-by: Richard Henderson <address@hidden>
---
 tcg/i386/tcg-target.h     |  2 +-
 tcg/i386/tcg-target.inc.c | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index b240633455..618aa520d2 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -183,7 +183,7 @@ extern bool have_avx2;
 #define TCG_TARGET_HAS_not_vec          0
 #define TCG_TARGET_HAS_neg_vec          0
 #define TCG_TARGET_HAS_shi_vec          1
-#define TCG_TARGET_HAS_shs_vec          0
+#define TCG_TARGET_HAS_shs_vec          1
 #define TCG_TARGET_HAS_shv_vec          have_avx2
 #define TCG_TARGET_HAS_cmp_vec          1
 #define TCG_TARGET_HAS_mul_vec          1
diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index c9448b6d84..0ba1587da4 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -420,6 +420,14 @@ static inline int tcg_target_const_match(tcg_target_long 
val, TCGType type,
 #define OPC_PSHIFTW_Ib  (0x71 | P_EXT | P_DATA16) /* /2 /6 /4 */
 #define OPC_PSHIFTD_Ib  (0x72 | P_EXT | P_DATA16) /* /2 /6 /4 */
 #define OPC_PSHIFTQ_Ib  (0x73 | P_EXT | P_DATA16) /* /2 /6 /4 */
+#define OPC_PSLLW       (0xf1 | P_EXT | P_DATA16)
+#define OPC_PSLLD       (0xf2 | P_EXT | P_DATA16)
+#define OPC_PSLLQ       (0xf3 | P_EXT | P_DATA16)
+#define OPC_PSRAW       (0xe1 | P_EXT | P_DATA16)
+#define OPC_PSRAD       (0xe2 | P_EXT | P_DATA16)
+#define OPC_PSRLW       (0xd1 | P_EXT | P_DATA16)
+#define OPC_PSRLD       (0xd2 | P_EXT | P_DATA16)
+#define OPC_PSRLQ       (0xd3 | P_EXT | P_DATA16)
 #define OPC_PSUBB       (0xf8 | P_EXT | P_DATA16)
 #define OPC_PSUBW       (0xf9 | P_EXT | P_DATA16)
 #define OPC_PSUBD       (0xfa | P_EXT | P_DATA16)
@@ -2724,6 +2732,15 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
         /* TODO: AVX512 adds support for MO_16, MO_64.  */
         OPC_UD2, OPC_UD2, OPC_VPSRAVD, OPC_UD2
     };
+    static int const shls_insn[4] = {
+        OPC_UD2, OPC_PSLLW, OPC_PSLLD, OPC_PSLLQ
+    };
+    static int const shrs_insn[4] = {
+        OPC_UD2, OPC_PSRLW, OPC_PSRLD, OPC_PSRLQ
+    };
+    static int const sars_insn[4] = {
+        OPC_UD2, OPC_PSRAW, OPC_PSRAD, OPC_UD2
+    };
 
     TCGType type = vecl + TCG_TYPE_V64;
     int insn, sub;
@@ -2785,6 +2802,15 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_sarv_vec:
         insn = sarv_insn[vece];
         goto gen_simd;
+    case INDEX_op_shls_vec:
+        insn = shls_insn[vece];
+        goto gen_simd;
+    case INDEX_op_shrs_vec:
+        insn = shrs_insn[vece];
+        goto gen_simd;
+    case INDEX_op_sars_vec:
+        insn = sars_insn[vece];
+        goto gen_simd;
     case INDEX_op_x86_punpckl_vec:
         insn = punpckl_insn[vece];
         goto gen_simd;
@@ -3165,6 +3191,9 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode 
op)
     case INDEX_op_shlv_vec:
     case INDEX_op_shrv_vec:
     case INDEX_op_sarv_vec:
+    case INDEX_op_shls_vec:
+    case INDEX_op_shrs_vec:
+    case INDEX_op_sars_vec:
     case INDEX_op_cmp_vec:
     case INDEX_op_x86_shufps_vec:
     case INDEX_op_x86_blend_vec:
@@ -3222,6 +3251,12 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, 
unsigned vece)
         }
         return 1;
 
+    case INDEX_op_shls_vec:
+    case INDEX_op_shrs_vec:
+        return vece >= MO_16;
+    case INDEX_op_sars_vec:
+        return vece >= MO_16 && vece <= MO_32;
+
     case INDEX_op_shlv_vec:
     case INDEX_op_shrv_vec:
         return have_avx2 && vece >= MO_32;
-- 
2.17.1




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