std::string show(const RegionDesc::Block& b) {
std::string ret{"Block "};
folly::toAppend(
b.func()->fullName()->data(), '@', b.start().offset(),
" length ", b.length(), '\n',
&ret
);
auto const& tpRange = b.typePreds();
auto tpIter = begin(tpRange);
auto skIter = b.start();
for (int i = 0; i < b.length(); ++i) {
while (tpIter != end(tpRange) && tpIter->first < skIter) {
++tpIter;
}
while (tpIter != end(tpRange) && tpIter->first == skIter) {
folly::toAppend(" predict: ", show(tpIter->second), "\n", &ret);
++tpIter;
}
folly::toAppend(
" ",
skIter.offset(),
" ",
instrToString(b.unit()->at(skIter.offset()), b.unit()),
'\n',
&ret
);
skIter.advance(b.unit());
}
return ret;
}
std::string show(const RegionDesc::Block& b) {
std::string ret{"Block "};
folly::toAppend(b.id(), ' ',
b.func()->fullName()->data(), '@', b.start().offset(),
b.start().resumed() ? "r" : "",
" length ", b.length(),
" initSpOff ", b.initialSpOffset().offset,
" inlineLevel ", b.inlineLevel(),
'\n',
&ret
);
auto typePreds = makeMapWalker(b.typePreds());
auto byRefs = makeMapWalker(b.paramByRefs());
auto refPreds = makeMapWalker(b.reffinessPreds());
auto knownFuncs= makeMapWalker(b.knownFuncs());
auto skIter = b.start();
const Func* topFunc = nullptr;
for (int i = 0; i < b.length(); ++i) {
while (typePreds.hasNext(skIter)) {
folly::toAppend(" predict: ", show(typePreds.next()), "\n", &ret);
}
while (refPreds.hasNext(skIter)) {
folly::toAppend(" predict reffiness: ", show(refPreds.next()), "\n",
&ret);
}
std::string knownFunc;
if (knownFuncs.hasNext(skIter)) {
topFunc = knownFuncs.next();
}
if (topFunc) {
const char* inlined = "";
if (i == b.length() - 1 && b.inlinedCallee()) {
assertx(topFunc == b.inlinedCallee());
inlined = " (call is inlined)";
}
knownFunc = folly::format(" (top func: {}{})",
topFunc->fullName()->data(), inlined).str();
} else {
assertx((i < b.length() - 1 || !b.inlinedCallee()) &&
"inlined FCall without a known funcd");
}
std::string byRef;
if (byRefs.hasNext(skIter)) {
byRef = folly::format(" (passed by {})", byRefs.next() ? "reference"
: "value").str();
}
std::string instrString;
folly::toAppend(instrToString((Op*)b.unit()->at(skIter.offset()), b.unit()),
byRef,
&instrString);
folly::toAppend(
" ",
skIter.offset(),
" ",
knownFunc.empty() ? instrString
: folly::format("{:<40}", instrString).str(),
knownFunc,
"\n",
&ret
);
skIter.advance(b.unit());
}
folly::toAppend(show(b.postConds()), &ret);
return ret;
}