Enable Intel AVX512_VP2INTERSECT insn

[deliverable/binutils-gdb.git] / gas / config / tc-i386.c

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 5eb6c4c2692d4aafdd495db3294ef065fecf43a5..585375f0cf871b1c9f9de4d5b0f4c1f95925b8d0 100644 (file)
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -1082,6 +1082,8 @@ static const arch_entry cpu_arch[] =
     CPU_MOVDIR64B_FLAGS, 0 },
   { STRING_COMMA_LEN (".avx512_bf16"), PROCESSOR_UNKNOWN,
     CPU_AVX512_BF16_FLAGS, 0 },
+  { STRING_COMMA_LEN (".avx512_vp2intersect"), PROCESSOR_UNKNOWN,
+    CPU_AVX512_VP2INTERSECT_FLAGS, 0 },
 };
 
 static const noarch_entry cpu_noarch[] =
@@ -1122,6 +1124,7 @@ static const noarch_entry cpu_noarch[] =
   { STRING_COMMA_LEN ("nomovdiri"), CPU_ANY_MOVDIRI_FLAGS },
   { STRING_COMMA_LEN ("nomovdir64b"), CPU_ANY_MOVDIR64B_FLAGS },
   { STRING_COMMA_LEN ("noavx512_bf16"), CPU_ANY_AVX512_BF16_FLAGS },
+  { STRING_COMMA_LEN ("noavx512_vp2intersect"), CPU_ANY_SHSTK_FLAGS },
 };
 
 #ifdef I386COFF
@@ -1299,7 +1302,16 @@ i386_output_nops (char *where, const unsigned char *const *patt,
   /* Place the longer NOP first.  */
   int last;
   int offset;
-  const unsigned char *nops =  patt[max_single_nop_size - 1];
+  const unsigned char *nops;
+
+  if (max_single_nop_size < 1)
+    {
+      as_fatal (_("i386_output_nops called to generate nops of at most %d bytes!"),
+               max_single_nop_size);
+      return;
+    }
+
+  nops = patt[max_single_nop_size - 1];
 
   /* Use the smaller one if the requsted one isn't available.  */
   if (nops == NULL)
@@ -6242,7 +6254,19 @@ process_suffix (void)
           /* exclude fldenv/frstor/fsave/fstenv */
           && i.tm.opcode_modifier.no_ssuf)
     {
-      i.suffix = stackop_size;
+      if (stackop_size == LONG_MNEM_SUFFIX
+         && i.tm.base_opcode == 0xcf)
+       {
+         /* stackop_size is set to LONG_MNEM_SUFFIX for the
+            .code16gcc directive to support 16-bit mode with
+            32-bit address.  For IRET without a suffix, generate
+            16-bit IRET (opcode 0xcf) to return from an interrupt
+            handler.  */
+         i.suffix = WORD_MNEM_SUFFIX;
+         as_warn (_("generating 16-bit `iret' for .code16gcc directive"));
+       }
+      else
+       i.suffix = stackop_size;
     }
   else if (intel_syntax
           && !i.suffix