diff mbox series

[09/20] tcg/i386: Implement avx512 scalar shift

Message ID 20211218194250.247633-10-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: vector improvements | expand

Commit Message

Richard Henderson Dec. 18, 2021, 7:42 p.m. UTC 
AVX512VL has VPSRAQ.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/i386/tcg-target.c.inc | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

Comments

Alex Bennée Feb. 2, 2022, 1:48 p.m. UTC | #1 
Richard Henderson <richard.henderson@linaro.org> writes:

> AVX512VL has VPSRAQ.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
diff mbox series

Patch

diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index 7b9302fcc2..69481c188c 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -368,6 +368,7 @@  static bool tcg_target_const_match(int64_t val, TCGType type, int ct)
 #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_VPSRAQ      (0x72 | P_EXT | P_DATA16 | P_VEXW | P_EVEX)
 #define OPC_PSRLW       (0xd1 | P_EXT | P_DATA16)
 #define OPC_PSRLD       (0xd2 | P_EXT | P_DATA16)
 #define OPC_PSRLQ       (0xd3 | P_EXT | P_DATA16)
@@ -2761,7 +2762,7 @@  static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
         OPC_UD2, OPC_PSRLW, OPC_PSRLD, OPC_PSRLQ
     };
     static int const sars_insn[4] = {
-        OPC_UD2, OPC_PSRAW, OPC_PSRAD, OPC_UD2
+        OPC_UD2, OPC_PSRAW, OPC_PSRAD, OPC_VPSRAQ
     };
     static int const abs_insn[4] = {
         /* TODO: AVX512 adds support for MO_64.  */
@@ -3237,7 +3238,14 @@  int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece)
     case INDEX_op_shrs_vec:
         return vece >= MO_16;
     case INDEX_op_sars_vec:
-        return vece >= MO_16 && vece <= MO_32;
+        switch (vece) {
+        case MO_16:
+        case MO_32:
+            return 1;
+        case MO_64:
+            return have_avx512vl;
+        }
+        return 0;
     case INDEX_op_rotls_vec:
         return vece >= MO_16 ? -1 : 0;