aaron/ispc
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Added updated task launch implementation that now tracks task groups.

Browse Source 
Within each function that launches tasks, we now can easily track which
tasks that function launched, so that the sync at the end of the function
can just sync on the tasks launched by that function (not all tasks
launched by all functions.)

Implementing this led to a rework of the task system API that ispc generates
code to call; the example task systems in examples/tasksys.cpp have been
updated to conform to this API.  (The updated API is also documented in
the ispc user's guide.)

As part of this, "launch[n]" syntax was added to launch a number of tasks
in a single launch statement, rather than requiring a loop over 'n' to
launch n tasks.

This commit thus fixes issue #84 (enhancement to launch multiple tasks from
a single launch statement) as well as issue #105 (recursive task launches
were broken).
This commit is contained in:
Matt Pharr
2011-09-30 11:20:53 -07:00
parent 5ee4d7fce8
commit cb7976bbf6
43 changed files with 1309 additions and 1043 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
parse.yy
View File

@@ -165,7 +165,7 @@ static const char *lParamListTokens[] = {
%token TOKEN_CBREAK TOKEN_CCONTINUE TOKEN_CRETURN TOKEN_SYNC TOKEN_PRINT
%type <expr> primary_expression postfix_expression
%type <expr> unary_expression cast_expression
%type <expr> unary_expression cast_expression launch_expression
%type <expr> multiplicative_expression additive_expression shift_expression
%type <expr> relational_expression equality_expression and_expression
%type <expr> exclusive_or_expression inclusive_or_expression
@@ -257,18 +257,32 @@ primary_expression
| '(' expression ')' { $$ = $2; }
;
launch_expression
: TOKEN_LAUNCH '<' postfix_expression '(' argument_expression_list ')' '>'
{
ConstExpr *oneExpr = new ConstExpr(AtomicType::UniformInt32, (int32_t)1, @3);
$$ = new FunctionCallExpr($3, $5, @3, true, oneExpr);
}
| TOKEN_LAUNCH '<' postfix_expression '(' ')' '>'
{
ConstExpr *oneExpr = new ConstExpr(AtomicType::UniformInt32, (int32_t)1, @3);
$$ = new FunctionCallExpr($3, new ExprList(@3), @3, true, oneExpr);
}
| TOKEN_LAUNCH '[' expression ']' '<' postfix_expression '(' argument_expression_list ')' '>'
{ $$ = new FunctionCallExpr($6, $8, @6, true, $3); }
| TOKEN_LAUNCH '[' expression ']' '<' postfix_expression '(' ')' '>'
{ $$ = new FunctionCallExpr($6, new ExprList(@6), @6, true, $3); }
;
postfix_expression
: primary_expression
| postfix_expression '[' expression ']'
{ $$ = new IndexExpr($1, $3, @1); }
| postfix_expression '(' ')'
{ $$ = new FunctionCallExpr($1, new ExprList(@1), @1, false); }
{ $$ = new FunctionCallExpr($1, new ExprList(@1), @1); }
| postfix_expression '(' argument_expression_list ')'
{ $$ = new FunctionCallExpr($1, $3, @1, false); }
| TOKEN_LAUNCH '<' postfix_expression '(' argument_expression_list ')' '>'
{ $$ = new FunctionCallExpr($3, $5, @3, true); }
| TOKEN_LAUNCH '<' postfix_expression '(' ')' '>'
{ $$ = new FunctionCallExpr($3, new ExprList(@3), @3, true); }
{ $$ = new FunctionCallExpr($1, $3, @1); }
| launch_expression
| postfix_expression '.' TOKEN_IDENTIFIER
{ $$ = MemberExpr::create($1, yytext, @1, @3); }
/* | postfix_expression TOKEN_PTR_OP TOKEN_IDENTIFIER
@@ -1283,6 +1297,12 @@ static void lAddThreadIndexCountToSymbolTable(SourcePos pos) {
Symbol *threadCountSym = new Symbol("threadCount", pos, AtomicType::UniformConstUInt32);
m->symbolTable->AddVariable(threadCountSym);
Symbol *taskIndexSym = new Symbol("taskIndex", pos, AtomicType::UniformConstUInt32);
m->symbolTable->AddVariable(taskIndexSym);
Symbol *taskCountSym = new Symbol("taskCount", pos, AtomicType::UniformConstUInt32);
m->symbolTable->AddVariable(taskCountSym);
}