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Add __foreach_active statement to loop over active prog. instances.

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For now this has the __ prefix, as an experimental feature currently only
used in the standard library implementation.  It's probably worth making
something along these lines an official feature, but I'm not sure if this
in its current form is quite the right thing.
This commit is contained in:
Matt Pharr
2012-03-20 08:46:00 -07:00
parent 2c8a44e28b
commit 7dffd65609
5 changed files with 144 additions and 151 deletions
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26
parse.yy
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@@ -188,7 +188,8 @@ struct ForeachDimension {
%token TOKEN_ENUM TOKEN_STRUCT TOKEN_TRUE TOKEN_FALSE
%token TOKEN_CASE TOKEN_DEFAULT TOKEN_IF TOKEN_ELSE TOKEN_SWITCH
%token TOKEN_WHILE TOKEN_DO TOKEN_LAUNCH TOKEN_FOREACH TOKEN_FOREACH_TILED TOKEN_DOTDOTDOT
%token TOKEN_WHILE TOKEN_DO TOKEN_LAUNCH TOKEN_FOREACH TOKEN_FOREACH_TILED
%token TOKEN_FOREACH_ACTIVE TOKEN_DOTDOTDOT
%token TOKEN_FOR TOKEN_GOTO TOKEN_CONTINUE TOKEN_BREAK TOKEN_RETURN
%token TOKEN_CIF TOKEN_CDO TOKEN_CFOR TOKEN_CWHILE TOKEN_CBREAK
%token TOKEN_CCONTINUE TOKEN_CRETURN TOKEN_SYNC TOKEN_PRINT TOKEN_ASSERT
@@ -220,7 +221,7 @@ struct ForeachDimension {
%type <structDeclarationList> struct_declaration_list
%type <symbolList> enumerator_list
%type <symbol> enumerator foreach_identifier
%type <symbol> enumerator foreach_identifier foreach_active_identifier
%type <enumType> enum_specifier
%type <type> specifier_qualifier_list struct_or_union_specifier
@@ -1550,6 +1551,17 @@ foreach_identifier
}
;
foreach_active_scope
: TOKEN_FOREACH_ACTIVE { m->symbolTable->PushScope(); }
;
foreach_active_identifier
: TOKEN_IDENTIFIER
{
$$ = new Symbol(yytext, @1, AtomicType::UniformInt32);
}
;
foreach_dimension_specifier
: foreach_identifier '=' assignment_expression TOKEN_DOTDOTDOT assignment_expression
{
@@ -1658,6 +1670,16 @@ iteration_statement
$$ = new ForeachStmt(syms, begins, ends, $6, true, @1);
m->symbolTable->PopScope();
}
| foreach_active_scope '(' foreach_active_identifier ')'
{
if ($3 != NULL)
m->symbolTable->AddVariable($3);
}
statement
{
$$ = CreateForeachActiveStmt($3, $6, Union(@1, @4));
m->symbolTable->PopScope();
}
;
goto_identifier