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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.
This commit is contained in:
Yuri Kunde Schlesner 2014-11-29 17:42:39 -02:00
parent 83c3d37cd0
commit 4a68e91a62
1 changed files with 15 additions and 33 deletions
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48
src/core/arm/dyncom/arm_dyncom_interpreter.cpp
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@ -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);