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Add a rule for the ELSE instruction.

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Untested.
This commit is contained in:
Eric Anholt 2006-08-31 10:27:48 -07:00 committed by Damien Lespiau
parent 1e907c7aed
commit 356ce76d44
1 changed files with 25 additions and 1 deletions
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26
assembler/src/gram.y
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@ -115,7 +115,8 @@ void set_direct_src_operand(struct src_operand *src, struct direct_reg *reg,
%type <instruction> instruction unaryinstruction binaryinstruction
%type <instruction> binaryaccinstruction triinstruction sendinstruction
%type <instruction> jumpinstruction branchloopinstruction specialinstruction
%type <instruction> jumpinstruction branchloopinstruction elseinstruction
%type <instruction> specialinstruction
%type <instruction> msgtarget
%type <instruction> instoptions instoption_list predicate
%type <program> instrseq
@ -183,6 +184,7 @@ instruction: unaryinstruction
| triinstruction
| jumpinstruction
| branchloopinstruction
| elseinstruction
| specialinstruction
;
@ -339,6 +341,28 @@ branchloopinstruction:
branchloopop: IF | IFF | WHILE
;
elseinstruction: ELSE relativelocation
{
struct direct_reg dst;
struct dst_operand ip_dst;
struct src_operand ip_src;
/* The jump instruction requires that the IP register
* be the destination and first source operand, while the
* offset is the second source operand. The offset is added
* to the IP pre-increment.
*/
bzero(&$$, sizeof($$));
$$.header.opcode = $1;
set_direct_dst_operand(&ip_dst, &dst, BRW_REGISTER_TYPE_UD);
set_instruction_dest(&$$, &ip_dst);
set_direct_src_operand(&ip_src, &dst, BRW_REGISTER_TYPE_UD);
set_instruction_src0(&$$, &ip_src);
set_instruction_src1(&$$, &$2);
}
;
breakop: BREAK | CONT | WAIT
;