wip

bjorng · Jan 6, 2024 · 4ddfc57 · 4ddfc57
1 parent 7bd3a26
commit 4ddfc57
Showing 1 changed file with 11 additions and 14 deletions.
diff --git a/erts/emulator/beam/jit/arm/beam_asm.hpp b/erts/emulator/beam/jit/arm/beam_asm.hpp
@@ -967,9 +967,9 @@ class BeamModuleAssembler : public BeamAssembler,
         arm::Mem mem;
     };
 
-    /* Using more than two cache entries does not seem worthwhile. */
-    static const int num_cache_entries = 4;
-    CacheEntry cache[num_cache_entries];
+    static const int max_cache_entries = 16;
+    CacheEntry cache[max_cache_entries];
+    int num_cache_entries = 0;
 
     /* Private helpers. */
     void preserve__cache(bool cache_was_valid) {
@@ -989,10 +989,7 @@ class BeamModuleAssembler : public BeamAssembler,
 
     void consolidate_cache() {
         if (!is_cache_valid()) {
-            for (int i = 0; i < num_cache_entries; i++) {
-                cache[i].reg1 = cache[i].reg2 = arm::Gp();
-                cache[i].mem = arm::Mem();
-            }
+            num_cache_entries = 0;
         }
 
         last_destination_offset = a.offset();
@@ -1005,8 +1002,12 @@ class BeamModuleAssembler : public BeamAssembler,
             }
         }
 
-        comment("blurf");
-        return 0;
+        if (num_cache_entries < max_cache_entries) {
+            return num_cache_entries++;
+        } else {
+            comment("blurf");
+            return 0;
+        }
     }
 
     int get_cache_entry(arm::Mem mem) {
@@ -1130,14 +1131,10 @@ class BeamModuleAssembler : public BeamAssembler,
             a.ldr(dst, mem);
             last_destination_offset = a.offset();
 
+            num_cache_entries = 1;
             cache[0].reg1 = dst;
             cache[0].reg2 = arm::Gp();
             cache[0].mem = mem;
-
-            for (int i = 1; i < num_cache_entries; i++) {
-                cache[i].reg1 = cache[i].reg2 = arm::Gp();
-                cache[i].mem = arm::Mem();
-            }
         }
     }