diff --git a/mono/mini/method-to-ir.c b/mono/mini/method-to-ir.c index 9b602e10a6903e327d437aa218f6a97c46e9e118..2a5f8917d5e86dba99e1612918565f8dfd325040 100644 --- a/mono/mini/method-to-ir.c +++ b/mono/mini/method-to-ir.c @@ -7829,7 +7829,12 @@ mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_b CHECK_STACK_OVF (1); n = ip [1]; CHECK_LOCAL (n); - EMIT_NEW_LOCLOAD (cfg, ins, n); + if ((ip [2] == CEE_LDFLD) && ip_in_bb (cfg, cfg->cbb, ip + 2) && MONO_TYPE_ISSTRUCT (header->locals [n])) { + /* Avoid loading a struct just to load one of its fields */ + EMIT_NEW_LOCLOADA (cfg, ins, n); + } else { + EMIT_NEW_LOCLOAD (cfg, ins, n); + } *sp++ = ins; ip += 2; break; @@ -12284,7 +12289,12 @@ mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_b CHECK_OPSIZE (4); n = read16 (ip + 2); CHECK_LOCAL (n); - EMIT_NEW_LOCLOAD (cfg, ins, n); + if ((ip [4] == CEE_LDFLD) && ip_in_bb (cfg, cfg->cbb, ip + 4) && header->locals [n]->type == MONO_TYPE_VALUETYPE) { + /* Avoid loading a struct just to load one of its fields */ + EMIT_NEW_LOCLOADA (cfg, ins, n); + } else { + EMIT_NEW_LOCLOAD (cfg, ins, n); + } *sp++ = ins; ip += 4; break;