[PATCH] assembler: error for the wrong syntax of SEND instruction on GEN6+

[Ben Widawsky <benjamin.widawsky@intel.com>]

From: "Xiang, Haihao" <haihao.xiang@intel.com>

   predicate SEND execsize dst sendleadreg payload directsrcoperand instoptions
   predicate SEND execsize dst sendleadreg payload imm32reg instoptions
   predicate SEND execsize dst sendleadreg payload sndopr imm32reg instoptions
   predicate SEND execsize dst sendleadreg payload exp directsrcoperand instoptions

The above four syntaxes are only used on legacy platforms which support implied move
from payload to dst.

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---

Somehow this ended up in our internal IGT. Anyone have an issue with me
pushing it to igt proper?

---
 assembler/gram.y | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/assembler/gram.y b/assembler/gram.y
index e58c1fe..8795797 100644
--- a/assembler/gram.y
+++ b/assembler/gram.y
@@ -1215,6 +1215,9 @@ sendinstruction: predicate sendop execsize exp post_dst payload msgtarget
 		}
 		| predicate sendop execsize dst sendleadreg payload directsrcoperand instoptions
 		{
+		  if (IS_GENp(6))
+                      error(&@2, "the syntax of send instruction\n");
+
 		  memset(&$$, 0, sizeof($$));
 		  set_instruction_opcode(&$$, $2);
 		  GEN(&$$)->header.destreg__conditionalmod = $5.nr; /* msg reg index */
@@ -1233,6 +1236,9 @@ sendinstruction: predicate sendop execsize exp post_dst payload msgtarget
 		  }
 		| predicate sendop execsize dst sendleadreg payload imm32reg instoptions
                 {
+		  if (IS_GENp(6))
+                      error(&@2, "the syntax of send instruction\n");
+
 		  if ($7.reg.type != BRW_REGISTER_TYPE_UD &&
 		      $7.reg.type != BRW_REGISTER_TYPE_D &&
 		      $7.reg.type != BRW_REGISTER_TYPE_V) {
@@ -1336,6 +1342,9 @@ sendinstruction: predicate sendop execsize exp post_dst payload msgtarget
 		}
 		| predicate sendop execsize dst sendleadreg payload sndopr imm32reg instoptions
 		{
+		  if (IS_GENp(6))
+                      error(&@2, "the syntax of send instruction\n");
+
 		  if ($8.reg.type != BRW_REGISTER_TYPE_UD &&
 		      $8.reg.type != BRW_REGISTER_TYPE_D &&
 		      $8.reg.type != BRW_REGISTER_TYPE_V) {
@@ -1355,15 +1364,16 @@ sendinstruction: predicate sendop execsize exp post_dst payload msgtarget
 		  if (set_instruction_src1(&$$, &$8, &@8) != 0)
 		    YYERROR;
 
-		  if (IS_GENp(8)) {
-		      gen8_set_eot(GEN8(&$$), !!($7 & EX_DESC_EOT_MASK));
-		  } else if (IS_GENx(5)) {
+		  if (IS_GENx(5)) {
 		      GEN(&$$)->bits2.send_gen5.sfid = ($7 & EX_DESC_SFID_MASK);
 		      GEN(&$$)->bits3.generic_gen5.end_of_thread = !!($7 & EX_DESC_EOT_MASK);
 		  }
 		}
 		| predicate sendop execsize dst sendleadreg payload exp directsrcoperand instoptions
 		{
+		  if (IS_GENp(6))
+                      error(&@2, "the syntax of send instruction\n");
+
 		  memset(&$$, 0, sizeof($$));
 		  set_instruction_opcode(&$$, $2);
 		  GEN(&$$)->header.destreg__conditionalmod = $5.nr; /* msg reg index */
-- 
1.8.3.4