[PATCH i386 AVX512] [4/n] Add new way of generating all 0/1 vector.

[Kirill Yukhin]

Hello,

This patch introduces new way of generating all-0 and all-1
vectors.

Boostrapped.

Is it ok for trunk?

gcc/
        * config/i386/i386.c (standard_sse_constant_opcode): Use 
vpxord/vpternlog
        if avx512 is availible.

--
Thanks, K

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 08fb9b5..5a00963 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -8997,19 +8997,24 @@ standard_sse_constant_opcode (rtx insn, rtx x)
       switch (get_attr_mode (insn))
        {
        case MODE_XI:
-       case MODE_V16SF:
          return "vpxord\t%g0, %g0, %g0";
+       case MODE_V16SF:
+         return TARGET_AVX512DQ ? "vxorps\t%g0, %g0, %g0"
+                                : "vpxord\t%g0, %g0, %g0";
        case MODE_V8DF:
-         return "vpxorq\t%g0, %g0, %g0";
+         return TARGET_AVX512DQ ? "vxorpd\t%g0, %g0, %g0"
+                                : "vpxorq\t%g0, %g0, %g0";
        case MODE_TI:
-         return "%vpxor\t%0, %d0";
+         return TARGET_AVX512VL ? "vpxord\t%t0, %t0, %t0"
+                                : "%vpxor\t%0, %d0";
        case MODE_V2DF:
          return "%vxorpd\t%0, %d0";
        case MODE_V4SF:
          return "%vxorps\t%0, %d0";
 
        case MODE_OI:
-         return "vpxor\t%x0, %x0, %x0";
+         return TARGET_AVX512VL ? "vpxord\t%x0, %x0, %x0"
+                                : "vpxor\t%x0, %x0, %x0";
        case MODE_V4DF:
          return "vxorpd\t%x0, %x0, %x0";
        case MODE_V8SF:
@@ -9020,7 +9025,8 @@ standard_sse_constant_opcode (rtx insn, rtx x)
        }
 
     case 2:
-      if (get_attr_mode (insn) == MODE_XI
+      if (TARGET_AVX512VL
+         ||get_attr_mode (insn) == MODE_XI
          || get_attr_mode (insn) == MODE_V8DF
          || get_attr_mode (insn) == MODE_V16SF)
        return "vpternlogd\t{$0xFF, %g0, %g0, %g0|%g0, %g0, %g0, 0xFF}";