bzero instructions before filling in the bits we care about.

This avoids some set bits in padding fields.

diff --git a/assembler/gram.y b/assembler/gram.y
index 6dc252e..4bd7bfc 100644 (file)
--- a/assembler/gram.y
+++ b/assembler/gram.y
@@ -142,6 +142,7 @@ unaryinstruction:
                predicate unaryop conditionalmodifier saturate execsize
                dst srcaccimm instoptions
                {
+                 bzero(&$$, sizeof($$));
                  $$.header.opcode = $2;
                  $$.header.destreg__conditionalmod = $3;
                  $$.header.saturate = $4;
@@ -159,6 +160,7 @@ binaryinstruction:
                predicate binaryop conditionalmodifier saturate execsize
                dst src srcimm instoptions
                {
+                 bzero(&$$, sizeof($$));
                  $$.header.opcode = $2;
                  $$.header.destreg__conditionalmod = $3;
                  $$.header.saturate = $4;
@@ -177,6 +179,7 @@ binaryaccinstruction:
                predicate binaryaccop conditionalmodifier saturate execsize
                dst srcacc srcimm instoptions
                {
+                 bzero(&$$, sizeof($$));
                  $$.header.opcode = $2;
                  $$.header.destreg__conditionalmod = $3;
                  $$.header.saturate = $4;
@@ -197,6 +200,7 @@ triinstruction:     sendinstruction
 sendinstruction: predicate SEND INTEGER execsize dst payload msgtarget
                MSGLEN INTEGER RETURNLEN INTEGER instoptions
                {
+                 bzero(&$$, sizeof($$));
                  $$.header.opcode = BRW_OPCODE_SEND;
                  $$.header.execution_size = $4;
                  $$.header.destreg__conditionalmod = $3;
@@ -204,6 +208,7 @@ sendinstruction: predicate SEND INTEGER execsize dst payload msgtarget
 
 specialinstruction: NOP
                {
+                 bzero(&$$, sizeof($$));
                  $$.header.opcode = BRW_OPCODE_NOP;
                }