void print(std::ostream& os, const Block* block,
const RegAllocInfo* regs, const AsmInfo* asmInfo,
const GuardConstraints* guards, BCMarker* markerPtr) {
BCMarker dummy;
BCMarker& curMarker = markerPtr ? *markerPtr : dummy;
TcaRange blockRange = asmInfo ? asmInfo->asmRanges[block] :
TcaRange(nullptr, nullptr);
os << '\n' << std::string(kIndent - 3, ' ');
printLabel(os, block);
os << punc(":");
auto& preds = block->preds();
if (!preds.empty()) {
os << " (preds";
for (auto const& edge : preds) {
os << " B" << edge.from()->id();
}
os << ')';
}
os << "\n";
if (block->empty()) {
os << std::string(kIndent, ' ') << "empty block\n";
return;
}
const char* markerEndl = "";
for (auto it = block->begin(); it != block->end();) {
auto& inst = *it; ++it;
if (inst.marker() != curMarker) {
std::ostringstream mStr;
auto const& newMarker = inst.marker();
if (!newMarker.hasFunc()) {
os << color(ANSI_COLOR_BLUE)
<< std::string(kIndent, ' ')
<< "--- invalid marker"
<< color(ANSI_COLOR_END)
<< '\n';
} else {
auto func = newMarker.func();
if (!curMarker.hasFunc() || func != curMarker.func()) {
func->prettyPrint(mStr, Func::PrintOpts().noFpi());
}
mStr << std::string(kIndent, ' ')
<< newMarker.show()
<< '\n';
auto bcOffset = newMarker.bcOff();
func->unit()->prettyPrint(
mStr, Unit::PrintOpts()
.range(bcOffset, bcOffset+1)
.noLineNumbers()
.noFuncs()
.indent(0));
std::vector<std::string> vec;
folly::split('\n', mStr.str(), vec);
os << markerEndl;
markerEndl = "\n";
for (auto& s : vec) {
if (s.empty()) continue;
os << color(ANSI_COLOR_BLUE) << s << color(ANSI_COLOR_END) << '\n';
}
}
curMarker = newMarker;
}
if (inst.op() == DefLabel) {
// print phi pseudo-instructions
for (unsigned i = 0, n = inst.numDsts(); i < n; ++i) {
os << std::string(kIndent +
folly::format("({}) ", inst.id()).str().size(),
' ');
auto dst = inst.dst(i);
jit::print(os, dst, dstLoc(regs, &inst, i));
os << punc(" = ") << color(ANSI_COLOR_CYAN) << "phi "
<< color(ANSI_COLOR_END);
bool first = true;
inst.block()->forEachSrc(i, [&](IRInstruction* jmp, SSATmp*) {
if (!first) os << punc(", ");
first = false;
printSrc(os, jmp, i, regs);
os << punc("@");
printLabel(os, jmp->block());
});
os << '\n';
}
}
os << std::string(kIndent, ' ');
jit::print(os, &inst, regs, guards);
os << '\n';
if (asmInfo) {
TcaRange instRange = asmInfo->instRanges[inst];
if (!instRange.empty()) {
disasmRange(os, instRange.begin(), instRange.end());
os << '\n';
assert(instRange.end() >= blockRange.start() &&
instRange.end() <= blockRange.end());
blockRange = TcaRange(instRange.end(), blockRange.end());
}
}
}
if (asmInfo) {
// print code associated with this block that isn't tied to any
// instruction. This includes code after the last isntruction (e.g.
// jmp to next block), and ACold or AFrozen code.
if (!blockRange.empty()) {
os << std::string(kIndent, ' ') << punc("A:") << "\n";
disasmRange(os, blockRange.start(), blockRange.end());
}
auto acoldRange = asmInfo->acoldRanges[block];
if (!acoldRange.empty()) {
os << std::string(kIndent, ' ') << punc("ACold:") << "\n";
disasmRange(os, acoldRange.start(), acoldRange.end());
}
auto afrozenRange = asmInfo->afrozenRanges[block];
if (!afrozenRange.empty()) {
os << std::string(kIndent, ' ') << punc("AFrozen:") << "\n";
disasmRange(os, afrozenRange.start(), afrozenRange.end());
}
if (!blockRange.empty() || !acoldRange.empty() || !afrozenRange.empty()) {
os << '\n';
}
}
os << std::string(kIndent - 2, ' ');
auto next = block->empty() ? nullptr : block->next();
if (next) {
os << punc("-> ");
printLabel(os, next);
os << '\n';
} else {
os << "no fallthrough\n";
}
}
void print(std::ostream& os, const Block* block, AreaIndex area,
const AsmInfo* asmInfo, const GuardConstraints* guards,
BCMarker* markerPtr) {
BCMarker dummy;
BCMarker& curMarker = markerPtr ? *markerPtr : dummy;
TcaRange blockRange = asmInfo ? asmInfo->blockRangesForArea(area)[block]
: TcaRange { nullptr, nullptr };
os << '\n' << std::string(kIndent - 3, ' ');
printLabel(os, block);
os << punc(":");
auto& preds = block->preds();
if (!preds.empty()) {
os << " (preds";
for (auto const& edge : preds) {
os << " B" << edge.from()->id();
}
os << ')';
}
os << "\n";
if (block->empty()) {
os << std::string(kIndent, ' ') << "empty block\n";
return;
}
const char* markerEndl = "";
for (auto it = block->begin(); it != block->end();) {
auto& inst = *it;
++it;
if (inst.marker() != curMarker) {
std::ostringstream mStr;
auto const& newMarker = inst.marker();
if (!newMarker.hasFunc()) {
os << color(ANSI_COLOR_BLUE)
<< std::string(kIndent, ' ')
<< "--- invalid marker"
<< color(ANSI_COLOR_END)
<< '\n';
} else {
auto func = newMarker.func();
if (!curMarker.hasFunc() || func != curMarker.func()) {
func->prettyPrint(mStr, Func::PrintOpts().noFpi());
}
mStr << std::string(kIndent, ' ')
<< newMarker.show()
<< '\n';
auto bcOffset = newMarker.bcOff();
func->unit()->prettyPrint(
mStr, Unit::PrintOpts()
.range(bcOffset, bcOffset+1)
.noLineNumbers()
.noFuncs()
.indent(0));
std::vector<std::string> vec;
folly::split('\n', mStr.str(), vec);
os << markerEndl;
markerEndl = "\n";
for (auto& s : vec) {
if (s.empty()) continue;
os << color(ANSI_COLOR_BLUE) << s << color(ANSI_COLOR_END) << '\n';
}
}
curMarker = newMarker;
}
if (inst.op() == DefLabel) {
// print phi pseudo-instructions
for (unsigned i = 0, n = inst.numDsts(); i < n; ++i) {
os << std::string(kIndent +
folly::format("({}) ", inst.id()).str().size(),
' ');
auto dst = inst.dst(i);
jit::print(os, dst);
os << punc(" = ") << color(ANSI_COLOR_CYAN) << "phi "
<< color(ANSI_COLOR_END);
bool first = true;
inst.block()->forEachSrc(i, [&](IRInstruction* jmp, SSATmp*) {
if (!first) os << punc(", ");
first = false;
printSrc(os, jmp, i);
os << punc("@");
printLabel(os, jmp->block());
});
os << '\n';
}
}
os << std::string(kIndent, ' ');
jit::print(os, &inst, guards);
os << '\n';
if (asmInfo) {
// There can be asm ranges in areas other than the one this blocks claims
// to be in so we have to iterate all the areas to be sure to get
// everything.
for (auto i = 0; i < kNumAreas; ++i) {
AreaIndex currentArea = static_cast<AreaIndex>(i);
TcaRange instRange = asmInfo->instRangesForArea(currentArea)[inst];
if (!instRange.empty()) {
os << std::string(kIndent + 4, ' ') << areaAsString(currentArea);
os << ":\n";
disasmRange(os, instRange.begin(), instRange.end());
os << '\n';
if (currentArea == area) {
// FIXME: this used to be an assertion
auto things_are_ok =
instRange.end() >= blockRange.start() &&
instRange.end() <= blockRange.end();
if (things_are_ok) {
blockRange = TcaRange(instRange.end(), blockRange.end());
} else {
// Don't crash; do something broken instead.
os << "<note: print range is probably incorrect right now>\n";
}
}
}
}
}
}
if (asmInfo) {
// Print code associated with the block that isn't tied to any instruction.
if (!blockRange.empty()) {
os << std::string(kIndent, ' ') << punc("A:") << "\n";
disasmRange(os, blockRange.start(), blockRange.end());
os << '\n';
}
}
os << std::string(kIndent - 2, ' ');
auto next = block->empty() ? nullptr : block->next();
if (next) {
os << punc("-> ");
printLabel(os, next);
os << '\n';
} else {
os << "no fallthrough\n";
}
}