dyncom: Use unordered_map rather than the terrible 2-level bb_map

Seems (probably just placebo/wishful thinking) to make it slightly
faster. Also reduces memory usage and makes shutdown when debugging from
MSVC fast.

1 files changed, 15 insertions, 33 deletions

diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index f899e2e8a..04d534723 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -26,7 +26,7 @@
 #define CITRA_IGNORE_EXIT(x)
 
 #include <algorithm>
-#include <map>
+#include <unordered_map>
 #include <stdio.h>
 #include <assert.h>
 #include <cstdio>
@@ -3309,9 +3309,8 @@ const transop_fp_t arm_instruction_trans[] = {
         INTERPRETER_TRANSLATE(blx_1_thumb)
 };
 
-typedef map<unsigned int, int> bb_map;
-bb_map CreamCache[65536];
-bb_map ProfileCache[65536];
+typedef std::unordered_map<u32, int> bb_map;
+bb_map CreamCache;
 
 //#define USE_DUMMY_CACHE
 
@@ -3319,14 +3318,12 @@ bb_map ProfileCache[65536];
 unsigned int DummyCache[0x100000];
 #endif
 
-#define HASH(x) ((x + (x << 3) + (x >> 6)) % 65536)
 void insert_bb(unsigned int addr, int start)
 {
 #ifdef USE_DUMMY_CACHE
         DummyCache[addr] = start;
 #else
-//      CreamCache[addr] = start;
-        CreamCache[HASH(addr)][addr] = start;
+        CreamCache[addr] = start;
 #endif
 }
 
@@ -3341,8 +3338,8 @@ int find_bb(unsigned int addr, int &start)
         } else
                 ret = -1;
 #else
-        bb_map::const_iterator it = CreamCache[HASH(addr)].find(addr);
-        if (it != CreamCache[HASH(addr)].end()) {
+        bb_map::const_iterator it = CreamCache.find(addr);
+        if (it != CreamCache.end()) {
                 start = static_cast<int>(it->second);
                 ret = 0;
 #if HYBRID_MODE
@@ -3473,30 +3470,15 @@ void flush_bb(uint32_t addr)
         uint32_t start;
 
         addr  &= 0xfffff000;
-        for (int i = 0; i < 65536; i ++) {
-                for (it = CreamCache[i].begin(); it != CreamCache[i].end(); ) {
-                        start = static_cast<uint32_t>(it->first);
-                        //start = (start >> 12) << 12;
-                        start &= 0xfffff000;
-                        if (start == addr) {
-                                //DEBUG_LOG(ARM11, "[ERASE][0x%08x]\n", static_cast<int>(it->first));
-                                CreamCache[i].erase(it ++);
-                        } else
-                                ++it;
-                }
-        }
-
-        for (int i = 0; i < 65536; i ++) {
-                for (it = ProfileCache[i].begin(); it != ProfileCache[i].end(); ) {
-                        start = static_cast<uint32_t>(it->first);
-                        //start = (start >> 12) << 12;
-                        start &= 0xfffff000;
-                        if (start == addr) {
-                                //DEBUG_LOG(ARM11, "[ERASE][0x%08x]\n", static_cast<int>(it->first));
-                                ProfileCache[i].erase(it ++);
-                        } else
-                                ++it;
-                }
+        for (it = CreamCache.begin(); it != CreamCache.end(); ) {
+                start = static_cast<uint32_t>(it->first);
+                //start = (start >> 12) << 12;
+                start &= 0xfffff000;
+                if (start == addr) {
+                        //DEBUG_LOG(ARM11, "[ERASE][0x%08x]\n", static_cast<int>(it->first));
+                        CreamCache.erase(it++);
+                } else
+                        ++it;
         }
 
         //DEBUG_LOG(ARM11, "flush bb @ %x\n", addr);