本文整理汇总了C++中BasicBlock::appendNonTerminal方法的典型用法代码示例。如果您正苦于以下问题：C++ BasicBlock::appendNonTerminal方法的具体用法？C++ BasicBlock::appendNonTerminal怎么用？C++ BasicBlock::appendNonTerminal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BasicBlock的用法示例。
在下文中一共展示了BasicBlock::appendNonTerminal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: run
//.........这里部分代码省略.........
case PhantomLocal:
node = node->child1().node();
break;
default:
RELEASE_ASSERT_NOT_REACHED();
}
RELEASE_ASSERT(node->op() == Phi || node->op() == SetArgument);
bool isFlushed = !!(node->flags() & NodeIsFlushed);
if (node->op() == Phi) {
if (!nonTrivialPhis.operand(node->local())) {
Edge edge = node->children.justOneChild();
ASSERT(edge);
if (verbose)
dataLog(" One child: ", edge, ", ", RawPointer(edge.node()), "\n");
node = edge.node(); // It's something from a different basic block.
} else {
if (verbose)
dataLog(" Non-trivial.\n");
// It's a non-trivial Phi.
FlushFormat format = variable->flushFormat();
NodeFlags result = resultFor(format);
UseKind useKind = useKindFor(format);
node = m_insertionSet.insertNode(0, SpecNone, Phi, NodeOrigin());
if (verbose)
dataLog(" Inserted new node: ", node, "\n");
node->mergeFlags(result);
RELEASE_ASSERT((node->flags() & NodeResultMask) == result);
for (unsigned j = block->predecessors.size(); j--;) {
BasicBlock* predecessor = block->predecessors[j];
predecessor->appendNonTerminal(
m_graph, SpecNone, Upsilon, predecessor->last()->origin,
OpInfo(node), Edge(predecessor->variablesAtTail[i], useKind));
}
if (isFlushed) {
// Do nothing. For multiple reasons.
// Reason #1: If the local is flushed then we don't need to bother
// with a MovHint since every path to this point in the code will
// have flushed the bytecode variable using a SetLocal and hence
// the Availability::flushedAt() will agree, and that will be
// sufficient for figuring out how to recover the variable's value.
// Reason #2: If we had inserted a MovHint and the Phi function had
// died (because the only user of the value was the "flush" - i.e.
// some asynchronous runtime thingy) then the MovHint would turn
// into a ZombieHint, which would fool us into thinking that the
// variable is dead.
// Reason #3: If we had inserted a MovHint then even if the Phi
// stayed alive, we would still end up generating inefficient code
// since we would be telling the OSR exit compiler to use some SSA
// value for the bytecode variable rather than just telling it that
// the value was already on the stack.
} else {
m_insertionSet.insertNode(
0, SpecNone, MovHint, NodeOrigin(),
OpInfo(variable->local().offset()), Edge(node));
}
}
}