本文整理汇总了C++中CodeGenFunction::EmitBlockLiteral方法的典型用法代码示例。如果您正苦于以下问题：C++ CodeGenFunction::EmitBlockLiteral方法的具体用法？C++ CodeGenFunction::EmitBlockLiteral怎么用？C++ CodeGenFunction::EmitBlockLiteral使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CodeGenFunction的用法示例。
在下文中一共展示了CodeGenFunction::EmitBlockLiteral方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
CGOpenCLRuntime::EnqueuedBlockInfo
CGOpenCLRuntime::emitOpenCLEnqueuedBlock(CodeGenFunction &CGF, const Expr *E) {
// The block literal may be assigned to a const variable. Chasing down
// to get the block literal.
if (auto DR = dyn_cast<DeclRefExpr>(E)) {
E = cast<VarDecl>(DR->getDecl())->getInit();
}
if (auto Cast = dyn_cast<CastExpr>(E)) {
E = Cast->getSubExpr();
}
auto *Block = cast<BlockExpr>(E);
// The same block literal may be enqueued multiple times. Cache it if
// possible.
auto Loc = EnqueuedBlockMap.find(Block);
if (Loc != EnqueuedBlockMap.end()) {
return Loc->second;
}
// Emit block literal as a common block expression and get the block invoke
// function.
llvm::Function *Invoke;
auto *V = CGF.EmitBlockLiteral(cast<BlockExpr>(Block), &Invoke);
auto *F = CGF.getTargetHooks().createEnqueuedBlockKernel(
CGF, Invoke, V->stripPointerCasts());
// The common part of the post-processing of the kernel goes here.
F->addFnAttr(llvm::Attribute::NoUnwind);
F->setCallingConv(
CGF.getTypes().ClangCallConvToLLVMCallConv(CallingConv::CC_OpenCLKernel));
EnqueuedBlockInfo Info{F, V};
EnqueuedBlockMap[Block] = Info;
return Info;
}