From bfe5973df4540facd6ff7aff52fec4fb5ae1f0a1 Mon Sep 17 00:00:00 2001
From: "coadde [Márcio Alexandre Silva Delgado]" <coadde@parabola.nu>
Date: Wed, 7 Oct 2015 03:45:47 -0300
Subject: pcr/reicast-multilib-git: update pkg

---
 pcr/reicast-multilib-git/loop-tracing.patch | 109 ++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 pcr/reicast-multilib-git/loop-tracing.patch

(limited to 'pcr/reicast-multilib-git/loop-tracing.patch')

diff --git a/pcr/reicast-multilib-git/loop-tracing.patch b/pcr/reicast-multilib-git/loop-tracing.patch
new file mode 100644
index 000000000..2e2b5ea97
--- /dev/null
+++ b/pcr/reicast-multilib-git/loop-tracing.patch
@@ -0,0 +1,109 @@
+diff -Nur a/core/rec-x86/rec_x86_driver.cpp b/core/rec-x86/rec_x86_driver.cpp
+--- a/core/rec-x86/rec_x86_driver.cpp	2015-10-06 21:43:53.045336422 -0300
++++ b/core/rec-x86/rec_x86_driver.cpp	2015-10-06 21:56:33.125833142 -0300
+@@ -289,6 +289,94 @@
+ }
+ 
+ 
++RuntimeBlockInfo* old_block;
++
++u32 old_loop;
++u32 old_old_loop;
++#include <map>
++
++#include <algorithm>
++
++u32 loops[RAM_SIZE];
++u32 loops_cyc[RAM_SIZE];
++u32 loops_hot[RAM_SIZE];
++u32 loops_end[RAM_SIZE];
++
++
++void print_loop_stats() {
++	
++	vector<pair<u32, u32>> vc;
++	int loopc = 0;
++	int loopo = 0;
++
++	int ooc = 0;
++	int ooo = 0;
++
++	for (int i = 0; i < RAM_SIZE; i += 2) {
++		if (loops_hot[i]) {
++			vc.push_back(pair<u32, u32>(-loops_cyc[i], i));
++
++			loopc += loops[i];
++
++			loopo += loops_cyc[i];
++		}
++
++		ooc += loops[i];
++		ooo += loops_cyc[i];
++	}
++
++	sort(vc.begin(), vc.end());
++
++	printf("%d loops, %d, %d, %.2f, %.2f\n", vc.size(), loopc, loopo, loopc *100.0 / 1000000, loopo * 100.0 / ooo);
++
++	memset(loops, 0, sizeof(loops));
++	memset(loops_cyc, 0, sizeof(loops_cyc));
++	memset(loops_hot, 0, sizeof(loops_hot));
++	memset(loops_end, 0, sizeof(loops_end));
++}
++int counts = 10000;
++void DYNACALL ngen_enter(RuntimeBlockInfo* block) {
++	if (BET_GET_CLS(block->BlockType) == BET_CLS_Dynamic)
++		old_block = 0;
++
++	if (old_block) {
++		if ((old_block->addr & RAM_MASK) >= (block->addr & RAM_MASK)) {
++			loops[RAM_MASK & block->addr]++;
++			loops_cyc[RAM_MASK & block->addr] += block->guest_cycles;
++
++			loops_end[RAM_MASK & block->addr] = max(loops_end[RAM_MASK & block->addr], RAM_MASK & old_block->addr);
++
++			if (!loops_hot[RAM_MASK & block->addr] && loops[RAM_MASK & block->addr] > 1000) {
++				//printf("HOT LOOP %08X\n", block->addr);
++
++				loops_hot[RAM_MASK & block->addr] = 1;
++			}
++
++			old_old_loop = old_loop;
++			old_loop = old_block->addr & RAM_MASK;
++		}
++
++		else {
++			if ((block->addr & RAM_MASK) > loops_end[old_loop] && old_old_loop != -1) {
++				old_loop = old_old_loop;
++				old_old_loop = -1;
++			}
++
++			if ((block->addr & RAM_MASK) <= loops_end[old_loop]) {
++				loops[old_loop] ++;
++				loops_cyc[old_loop] += block->guest_cycles;
++			}
++		}
++	}
++
++	old_block = block;
++
++	if (--counts < 0) {
++		counts = 10000000;
++		print_loop_stats();
++	}
++}
++
+ void ngen_Compile(RuntimeBlockInfo* block,bool force_checks, bool reset, bool staging,bool optimise)
+ {
+ 	//initialise stuff
+@@ -306,6 +394,10 @@
+ 
+ 	block->code=(DynarecCodeEntryPtr)emit_GetCCPtr();
+ 
++	x86e->Emit(op_mov32, ECX, unat(block));
++
++	x86e->Emit(op_call, x86_ptr_imm(&ngen_enter));
++
+ 	x86e->Emit(op_add32,&memops_t,block->memops);
+ 	x86e->Emit(op_add32,&memops_l,block->linkedmemops);
+ 
-- 
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