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authornotaz2011-06-22 17:46:24 +0300
committernotaz2011-07-08 00:15:07 +0300
commite3234ecf9665738e35a749fbb9d4120f25a0c7cf (patch)
treed6e539c850d146576652a0bb2b734056415df253 /libpcsxcore
parent2a70696411b92af26a72c2b28212e4fe73cdd2d8 (diff)
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drc: merge Ari64's patch: 17_branch_target_liveness_analysis
Diffstat (limited to 'libpcsxcore')
-rw-r--r--libpcsxcore/new_dynarec/new_dynarec.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index 9fdaa72..c6d83c2 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -7453,6 +7453,10 @@ void clean_registers(int istart,int iend,int wr)
will_dirty_i|=will_dirty[(ba[i]-start)>>2]&(1<<r);
wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r);
}
+ if(branch_regs[i].regmap[r]>=0) {
+ will_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(branch_regs[i].regmap[r]&63))&1)<<r;
+ wont_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(branch_regs[i].regmap[r]&63))&1)<<r;
+ }
}
}
//}
@@ -7482,13 +7486,14 @@ void clean_registers(int istart,int iend,int wr)
//if(ba[i]>start+i*4) { // Disable recursion (for debugging)
for(r=0;r<HOST_REGS;r++) {
if(r!=EXCLUDE_REG) {
- if(branch_regs[i].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) {
+ signed char target_reg=branch_regs[i].regmap[r];
+ if(target_reg==regs[(ba[i]-start)>>2].regmap_entry[r]) {
will_dirty_i&=will_dirty[(ba[i]-start)>>2]&(1<<r);
wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r);
}
- else
- {
- will_dirty_i&=~(1<<r);
+ else if(target_reg>=0) {
+ will_dirty_i&=((unneeded_reg[(ba[i]-start)>>2]>>(target_reg&63))&1)<<r;
+ wont_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(target_reg&63))&1)<<r;
}
// Treat delay slot as part of branch too
/*if(regs[i+1].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) {
@@ -7525,7 +7530,7 @@ void clean_registers(int istart,int iend,int wr)
}
}
}
- // Merge in delay slot
+ // Merge in delay slot (won't dirty)
for(r=0;r<HOST_REGS;r++) {
if(r!=EXCLUDE_REG) {
if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r;