broadcom/compiler: don't leak v3d_compile when finding a new best strategy

If we had selected a best strategy and find an even better one we need to
make sure we free the previous one.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24001>

diff --git a/src/broadcom/compiler/vir.c b/src/broadcom/compiler/vir.c
index f091873..82c21f9 100644 (file)
--- a/src/broadcom/compiler/vir.c
+++ b/src/broadcom/compiler/vir.c
@@ -1790,6 +1790,15 @@ skip_compile_strategy(struct v3d_compile *c, uint32_t idx)
            return false;
    };
 }
+
+static inline void
+set_best_compile(struct v3d_compile **best, struct v3d_compile *c)
+{
+   if (*best)
+      vir_compile_destroy(*best);
+   *best = c;
+}
+
 uint64_t *v3d_compile(const struct v3d_compiler *compiler,
                       struct v3d_key *key,
                       struct v3d_prog_data **out_prog_data,
@@ -1854,11 +1863,11 @@ uint64_t *v3d_compile(const struct v3d_compiler *compiler,
                         if (c->spills == 0 ||
                             strategies[strat].min_threads == 4 ||
                             V3D_DBG(OPT_COMPILE_TIME)) {
-                                best_c = c;
+                                set_best_compile(&best_c, c);
                                 break;
                         } else if (c->spills + c->fills <
                                    best_spill_fill_count) {
-                                best_c = c;
+                                set_best_compile(&best_c, c);
                                 best_spill_fill_count = c->spills + c->fills;
                         }
 
@@ -1888,10 +1897,8 @@ uint64_t *v3d_compile(const struct v3d_compiler *compiler,
         }
 
         /* If the best strategy was not the last, choose that */
-        if (best_c && c != best_c) {
-                vir_compile_destroy(c);
-                c = best_c;
-        }
+        if (best_c && c != best_c)
+                set_best_compile(&c, best_c);
 
         if (V3D_DBG(PERF) &&
             c->compilation_result !=