enable div optimization (#95201)

dotnet · Nov 25, 2023 · 2f8ef58 · 2f8ef58
1 parent bdee729
commit 2f8ef58
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Showing 4 changed files with 2 additions and 7 deletions.
diff --git a/src/mono/mono/mini/local-propagation.c b/src/mono/mono/mini/local-propagation.c
@@ -370,7 +370,7 @@ mono_strength_reduction_ins (MonoCompile *cfg, MonoInst *ins, const char **spec)
 	}
 	case OP_IDIV_UN_IMM:
 	case OP_IDIV_IMM: {
-		if ((!COMPILE_LLVM (cfg)) && (!cfg->backend->optimized_div))
+		if (!COMPILE_LLVM (cfg))
 			allocated_vregs = mono_strength_reduction_division (cfg, ins);
 		break;
 	}
@@ -384,7 +384,7 @@ mono_strength_reduction_ins (MonoCompile *cfg, MonoInst *ins, const char **spec)
 			MONO_INST_NULLIFY_SREGS (ins);
 			ins->inst_c0 = 0;
 		} else if ((ins->inst_imm > 0) && (ins->inst_imm < (1LL << 32)) &&
-			   (power != -1) && (!cfg->backend->optimized_div)) {
+			   (power != -1)) {
 			gboolean is_long = ins->opcode == OP_LREM_IMM;
 			int compensator_reg = alloc_ireg (cfg);
 			int intermediate_reg;

diff --git a/src/mono/mono/mini/mini-s390x.h b/src/mono/mono/mini/mini-s390x.h
@@ -77,7 +77,6 @@ struct SeqPointInfo {
 #define MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT		1
 #define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK		1
 #define MONO_ARCH_HAVE_TRACK_FPREGS			1
-#define MONO_ARCH_HAVE_OPTIMIZED_DIV			1
 #define MONO_ARCH_HAVE_OP_TAILCALL_MEMBASE		1
 #define MONO_ARCH_HAVE_OP_TAILCALL_REG			1
 #define MONO_ARCH_HAVE_SDB_TRAMPOLINES			1

diff --git a/src/mono/mono/mini/mini.c b/src/mono/mono/mini/mini.c
@@ -3021,9 +3021,6 @@ init_backend (MonoBackend *backend)
 #ifdef MONO_ARCH_EXPLICIT_NULL_CHECKS
 	backend->explicit_null_checks = 1;
 #endif
-#ifdef MONO_ARCH_HAVE_OPTIMIZED_DIV
-	backend->optimized_div = 1;
-#endif
 #ifdef MONO_ARCH_HAVE_INIT_MRGCTX
 	backend->have_init_mrgctx = 1;
 #endif

diff --git a/src/mono/mono/mini/mini.h b/src/mono/mono/mini/mini.h
@@ -1257,7 +1257,6 @@ typedef struct {
 	guint            no_unaligned_access : 1;
 	guint            disable_div_with_mul : 1;
 	guint            explicit_null_checks : 1;
-	guint            optimized_div : 1;
 	int              monitor_enter_adjustment;
 	int              dyn_call_param_area;
 } MonoBackend;