bool ValidateLimitations::visitBinary(Visit, TIntermBinary* node)
{
// Check if loop index is modified in the loop body.
validateOperation(node, node->getLeft());
// Check indexing.
switch (node->getOp()) {
case EOpIndexDirect:
validateIndexing(node);
break;
case EOpIndexIndirect:
validateIndexing(node);
break;
default: break;
}
return true;
}
bool ValidateLimitations::visitBinary(Visit, TIntermBinary* node)
{
// Check if loop index is modified in the loop body.
validateOperation(node, node->getLeft());
// Check indexing.
switch (node->getOp()) {
case EOpIndexDirect:
validateIndexing(node);
break;
case EOpIndexIndirect:
#if defined(__APPLE__)
// Loop unrolling is a work-around for a Mac Cg compiler bug where it
// crashes when a sampler array's index is also the loop index.
// Once Apple fixes this bug, we should remove the code in this CL.
// See http://codereview.appspot.com/4331048/.
if ((node->getLeft() != NULL) && (node->getRight() != NULL) &&
(node->getLeft()->getAsSymbolNode())) {
TIntermSymbol* symbol = node->getLeft()->getAsSymbolNode();
if (IsSampler(symbol->getBasicType()) && symbol->isArray()) {
ValidateLoopIndexExpr validate(mLoopStack);
node->getRight()->traverse(&validate);
if (validate.usesFloatLoopIndex()) {
error(node->getLine(),
"sampler array index is float loop index",
"for");
}
}
}
#endif
validateIndexing(node);
break;
default: break;
}
return true;
}
