emit_x64: Use boost::icl::interval_map to speed up ranged invalidation

src/backend_x64/emit_x64.cpp

@@ -117,6 +117,8 @@ EmitX64::BlockDescriptor EmitX64::Emit(IR::Block& block) {
     EmitX64::BlockDescriptor block_desc{entrypoint, size, block.Location(), block.EndLocation().PC()};
     block_descriptors.emplace(descriptor.UniqueHash(), block_desc);
 
+    block_ranges.add(std::make_pair(boost::icl::discrete_interval<u32>::closed(block.Location().PC(), block.EndLocation().PC() - 1), std::set<IR::LocationDescriptor>{descriptor}));
+
     return block_desc;
 }
 
@@ -3541,22 +3543,20 @@ void EmitX64::ClearCache() {
     patch_information.clear();
 }
 
-void EmitX64::InvalidateCacheRange(const Common::AddressRange& range) {
+void EmitX64::InvalidateCacheRanges(const boost::icl::interval_set<u32>& ranges) {
     // Remove cached block descriptors and patch information overlapping with the given range.
-    for (auto it = block_descriptors.begin(); it != block_descriptors.end();) {
-        IR::LocationDescriptor descriptor = it->second.start_location;
-        u32 start = descriptor.PC();
-        u32 end = it->second.end_location_pc;
-        if (range.Overlaps(start, end)) {
-            it = block_descriptors.erase(it);
-
+    for (auto invalidate_interval : ranges) {
+        auto pair = block_ranges.equal_range(invalidate_interval);
+        for (auto it = pair.first; it != pair.second; ++it) {
+            for (const auto& descriptor : it->second) {
                 if (patch_information.count(descriptor.UniqueHash())) {
                     Unpatch(descriptor);
                 }
-        } else {
-            ++it;
+                block_descriptors.erase(descriptor.UniqueHash());
             }
         }
+        block_ranges.erase(pair.first, pair.second);
+    }
 }
 
 } // namespace BackendX64

src/backend_x64/emit_x64.h

@@ -9,6 +9,8 @@
 #include <unordered_map>
 #include <vector>
 
+#include <boost/icl/interval_map.hpp>
+#include <boost/icl/interval_set.hpp>
 #include <boost/optional.hpp>
 
 #include <xbyak_util.h>
@@ -57,10 +59,10 @@ public:
     void ClearCache();
 
     /**
-     * Invalidate the cache at a range of addresses.
-     * @param range The range of addresses to invalidate the cache at.
+     * Invalidate the cache at a set of ranges of addresses.
+     * @param ranges The set of ranges of addresses to invalidate the cache at.
      */
-    void InvalidateCacheRange(const Common::AddressRange& range);
+    void InvalidateCacheRanges(const boost::icl::interval_set<u32>& ranges);
 
 private:
     // Microinstruction emitters
@@ -97,6 +99,7 @@ private:
     // State
     BlockOfCode* code;
     UserCallbacks cb;
+    boost::icl::interval_map<u32, std::set<IR::LocationDescriptor>> block_ranges;
     Jit* jit_interface;
     std::unordered_map<u64, BlockDescriptor> block_descriptors;
     std::unordered_map<u64, PatchInformation> patch_information;

src/backend_x64/interface_x64.cpp

@@ -4,9 +4,9 @@
  * General Public License version 2 or any later version.
  */
 
-#include <deque>
 #include <memory>
 
+#include <boost/icl/interval_set.hpp>
 #include <fmt/format.h>
 
 #ifdef DYNARMIC_USE_LLVM
@@ -45,7 +45,7 @@ struct Jit::Impl {
     const UserCallbacks callbacks;
 
     // Requests made during execution to invalidate the cache are queued up here.
-    std::deque<Common::AddressRange> invalid_cache_ranges;
+    boost::icl::interval_set<u32> invalid_cache_ranges;
     bool invalidate_entire_cache = false;
 
     void Execute(size_t cycle_count) {
@@ -106,10 +106,8 @@ struct Jit::Impl {
         }
 
         jit_state.ResetRSB();
-        while (!invalid_cache_ranges.empty()) {
-            emitter.InvalidateCacheRange(invalid_cache_ranges.front());
-            invalid_cache_ranges.pop_front();
-        }
+        emitter.InvalidateCacheRanges(invalid_cache_ranges);
+        invalid_cache_ranges.clear();
     }
 
     void RequestCacheInvalidation() {
@@ -179,7 +177,7 @@ void Jit::ClearCache() {
 }
 
 void Jit::InvalidateCacheRange(std::uint32_t start_address, std::size_t length) {
-    impl->invalid_cache_ranges.emplace_back(Common::AddressRange{start_address, length});
+    impl->invalid_cache_ranges.add(boost::icl::discrete_interval<u32>::closed(start_address, start_address + length - 1));
     impl->RequestCacheInvalidation();
 }
 

src/frontend/ir/location_descriptor.h

@@ -101,6 +101,12 @@ std::ostream& operator<<(std::ostream& o, const LocationDescriptor& descriptor);
 
 namespace std {
 template <>
+struct less<Dynarmic::IR::LocationDescriptor> {
+    bool operator()(const Dynarmic::IR::LocationDescriptor& x, const Dynarmic::IR::LocationDescriptor& y) const {
+        return x.UniqueHash() < y.UniqueHash();
+    }
+};
+template <>
 struct hash<Dynarmic::IR::LocationDescriptor> {
     size_t operator()(const Dynarmic::IR::LocationDescriptor& x) const {
         return std::hash<u64>()(x.UniqueHash());