feat: 添加整数和浮点数的取余运算指令

- 在 IROpCode枚举中添加了 MOD_B8、MOD_S16、MOD_I32、MOD_L64、MOD_F32 和 MOD_D64 指令
- 更新了 IROpCodeMapper 映射，增加了取余运算的后端指令
- 修改了 IROpCodeMappings 类，添加了取余运算符与 IR 操作码的映射

src/main/java/org/jcnc/snow/compiler/backend/utils/IROpCodeMapper.java

@@ -44,6 +44,7 @@ public final class IROpCodeMapper {
         opcodeMap.put(IROpCode.MUL_B8, "B_MUL");
         opcodeMap.put(IROpCode.DIV_B8, "B_DIV");
         opcodeMap.put(IROpCode.NEG_B8, "B_NEG");
+        opcodeMap.put(IROpCode.MOD_B8, "B_MOD");
 
         // 整形16位算术运算映射
         opcodeMap.put(IROpCode.ADD_S16, "S_ADD");
@@ -51,6 +52,7 @@ public final class IROpCodeMapper {
         opcodeMap.put(IROpCode.MUL_S16, "S_MUL");
         opcodeMap.put(IROpCode.DIV_S16, "S_DIV");
         opcodeMap.put(IROpCode.NEG_S16, "S_NEG");
+        opcodeMap.put(IROpCode.MOD_S16, "S_MOD");
 
         // 整形32位算术运算映射
         opcodeMap.put(IROpCode.ADD_I32, "I_ADD");
@@ -58,6 +60,7 @@ public final class IROpCodeMapper {
         opcodeMap.put(IROpCode.MUL_I32, "I_MUL");
         opcodeMap.put(IROpCode.DIV_I32, "I_DIV");
         opcodeMap.put(IROpCode.NEG_I32, "I_NEG");
+        opcodeMap.put(IROpCode.MOD_I32, "I_MOD");
 
         // 整形64位算术运算映射
         opcodeMap.put(IROpCode.ADD_L64, "L_ADD");
@@ -65,6 +68,7 @@ public final class IROpCodeMapper {
         opcodeMap.put(IROpCode.MUL_L64, "L_MUL");
         opcodeMap.put(IROpCode.DIV_L64, "L_DIV");
         opcodeMap.put(IROpCode.NEG_L64, "L_NEG");
+        opcodeMap.put(IROpCode.MOD_L64, "L_MOD");
 
         // --- 32-bit floating point ---
 
@@ -73,6 +77,7 @@ public final class IROpCodeMapper {
         opcodeMap.put(IROpCode.MUL_F32, "F_MUL");
         opcodeMap.put(IROpCode.DIV_F32, "F_DIV");
         opcodeMap.put(IROpCode.NEG_F32, "F_NEG");
+        opcodeMap.put(IROpCode.MOD_F32, "F_MOD");
 
         // --- 64-bit floating point ---
         opcodeMap.put(IROpCode.ADD_D64, "D_ADD");
@@ -80,6 +85,7 @@ public final class IROpCodeMapper {
         opcodeMap.put(IROpCode.MUL_D64, "D_MUL");
         opcodeMap.put(IROpCode.DIV_D64, "D_DIV");
         opcodeMap.put(IROpCode.NEG_D64, "D_NEG");
+        opcodeMap.put(IROpCode.MOD_D64, "D_MOD");
 
         // 比较运算映射
         // 8位整数比较运算映射

src/main/java/org/jcnc/snow/compiler/ir/core/IROpCode.java

@@ -25,11 +25,12 @@ public enum IROpCode {
 
 
     /* ───── 算术运算（8位整数: byte）───── */
-    ADD_B8,    // 8位整型加法: a = b + c
-    SUB_B8,    // 8位整型减法: a = b - c
-    MUL_B8,    // 8位整型乘法: a = b * c
-    DIV_B8,    // 8位整型除法: a = b / c
-    NEG_B8,    // 8位整型取负: a = -b
+    ADD_B8,    // 8位整型加法:
+    SUB_B8,    // 8位整型减法:
+    MUL_B8,    // 8位整型乘法:
+    DIV_B8,    // 8位整型除法:
+    NEG_B8,    // 8位整型取负:
+    MOD_B8,    // 8位整型取余
 
     /* ───── 算术运算（16位整数: short）───── */
     ADD_S16,   // 16位整型加法
@@ -37,6 +38,7 @@ public enum IROpCode {
     MUL_S16,   // 16位整型乘法
     DIV_S16,   // 16位整型除法
     NEG_S16,   // 16位整型取负
+    MOD_S16,   // 16位整型取余
 
     /* ───── 算术运算（32位整数: int）───── */
     ADD_I32,   // 32位整型加法
@@ -44,6 +46,7 @@ public enum IROpCode {
     MUL_I32,   // 32位整型乘法
     DIV_I32,   // 32位整型除法
     NEG_I32,   // 32位整型取负
+    MOD_I32,   // 32位整型取余
 
     /* ───── 算术运算（64位整数: long）───── */
     ADD_L64,   // 64位整型加法
@@ -51,6 +54,7 @@ public enum IROpCode {
     MUL_L64,   // 64位整型乘法
     DIV_L64,   // 64位整型除法
     NEG_L64,   // 64位整型取负
+    MOD_L64,   // 64位整型取余
 
     /* ───── 算术运算（32位浮点数: float）───── */
     ADD_F32,   // 32位浮点加法
@@ -58,6 +62,7 @@ public enum IROpCode {
     MUL_F32,   // 32位浮点乘法
     DIV_F32,   // 32位浮点除法
     NEG_F32,   // 32位浮点取负
+    MOD_F32,   // 32位浮点取余
 
     /* ───── 算术运算（64位浮点数: double）───── */
     ADD_D64,   // 64位浮点加法
@@ -65,6 +70,7 @@ public enum IROpCode {
     MUL_D64,   // 64位浮点乘法
     DIV_D64,   // 64位浮点除法
     NEG_D64,   // 64位浮点取负
+    MOD_D64,   // 64位浮点取余
 
     /* ───── 逻辑与比较运算指令（8位整数: byte） ───── */
     CMP_BEQ,    // 8位整数相等比较: a == b

src/main/java/org/jcnc/snow/compiler/ir/core/IROpCodeMappings.java

@@ -6,41 +6,57 @@ import java.util.Map;
  * 操作符与IR操作码映射表，统一管理所有类型的算术和比较操作映射。
  */
 public final class IROpCodeMappings {
-    private IROpCodeMappings() {} // 禁止实例化
-
     // 8位整型运算符映射
     public static final Map<String, IROpCode> OP_B8 = Map.of(
-            "+", IROpCode.ADD_B8, "-", IROpCode.SUB_B8,
-            "*", IROpCode.MUL_B8, "/", IROpCode.DIV_B8
+            "+", IROpCode.ADD_B8,
+            "-", IROpCode.SUB_B8,
+            "*", IROpCode.MUL_B8,
+            "/", IROpCode.DIV_B8,
+            "%", IROpCode.MOD_B8
     );
     // 16位整型
     public static final Map<String, IROpCode> OP_S16 = Map.of(
-            "+", IROpCode.ADD_S16, "-", IROpCode.SUB_S16,
-            "*", IROpCode.MUL_S16, "/", IROpCode.DIV_S16
+            "+", IROpCode.ADD_S16,
+            "-", IROpCode.SUB_S16,
+            "*", IROpCode.MUL_S16,
+            "/", IROpCode.DIV_S16,
+            "%", IROpCode.MOD_S16
     );
     // 32位整型
     public static final Map<String, IROpCode> OP_I32 = Map.of(
-            "+", IROpCode.ADD_I32, "-", IROpCode.SUB_I32,
-            "*", IROpCode.MUL_I32, "/", IROpCode.DIV_I32
+            "+", IROpCode.ADD_I32,
+            "-", IROpCode.SUB_I32,
+            "*", IROpCode.MUL_I32,
+            "/", IROpCode.DIV_I32,
+            "%", IROpCode.MOD_I32
     );
     // 64位长整型
     public static final Map<String, IROpCode> OP_L64 = Map.of(
-            "+", IROpCode.ADD_L64, "-", IROpCode.SUB_L64,
-            "*", IROpCode.MUL_L64, "/", IROpCode.DIV_L64
+            "+", IROpCode.ADD_L64,
+            "-", IROpCode.SUB_L64,
+            "*", IROpCode.MUL_L64,
+            "/", IROpCode.DIV_L64,
+            "%", IROpCode.MOD_L64
     );
     // 32位浮点型
     public static final Map<String, IROpCode> OP_F32 = Map.of(
-            "+", IROpCode.ADD_F32, "-", IROpCode.SUB_F32,
-            "*", IROpCode.MUL_F32, "/", IROpCode.DIV_F32
+            "+", IROpCode.ADD_F32,
+            "-", IROpCode.SUB_F32,
+            "*", IROpCode.MUL_F32,
+            "/", IROpCode.DIV_F32,
+            "%", IROpCode.MOD_F32
     );
     // 64位双精度浮点型
     public static final Map<String, IROpCode> OP_D64 = Map.of(
-            "+", IROpCode.ADD_D64, "-", IROpCode.SUB_D64,
-            "*", IROpCode.MUL_D64, "/", IROpCode.DIV_D64
+            "+", IROpCode.ADD_D64,
+            "-", IROpCode.SUB_D64,
+            "*", IROpCode.MUL_D64,
+            "/", IROpCode.DIV_D64,
+            "%", IROpCode.MOD_D64
     );
-
-    /* ────── 比较运算符映射 ────── */
-    /** 8-bit（byte）比较 */
+    /**
+     * 8-bit（byte）比较
+     */
     public static final Map<String, IROpCode> CMP_B8 = Map.of(
             "==", IROpCode.CMP_BEQ,
             "!=", IROpCode.CMP_BNE,
@@ -50,7 +66,10 @@ public final class IROpCodeMappings {
             ">=", IROpCode.CMP_BGE
     );
 
-    /** 16-bit（short）比较 */
+    /* ────── 比较运算符映射 ────── */
+    /**
+     * 16-bit（short）比较
+     */
     public static final Map<String, IROpCode> CMP_S16 = Map.of(
             "==", IROpCode.CMP_SEQ,
             "!=", IROpCode.CMP_SNE,
@@ -59,8 +78,9 @@ public final class IROpCodeMappings {
             "<=", IROpCode.CMP_SLE,
             ">=", IROpCode.CMP_SGE
     );
-
-    /** 32-bit（int）比较 */
+    /**
+     * 32-bit（int）比较
+     */
     public static final Map<String, IROpCode> CMP_I32 = Map.of(
             "==", IROpCode.CMP_IEQ,
             "!=", IROpCode.CMP_INE,
@@ -69,8 +89,9 @@ public final class IROpCodeMappings {
             "<=", IROpCode.CMP_ILE,
             ">=", IROpCode.CMP_IGE
     );
-
-    /** 64-bit（long）比较 */
+    /**
+     * 64-bit（long）比较
+     */
     public static final Map<String, IROpCode> CMP_L64 = Map.of(
             "==", IROpCode.CMP_LEQ,
             "!=", IROpCode.CMP_LNE,
@@ -79,8 +100,9 @@ public final class IROpCodeMappings {
             "<=", IROpCode.CMP_LLE,
             ">=", IROpCode.CMP_LGE
     );
-
-    /** 32-bit（float）比较 */
+    /**
+     * 32-bit（float）比较
+     */
     public static final Map<String, IROpCode> CMP_F32 = Map.of(
             "==", IROpCode.CMP_FEQ,
             "!=", IROpCode.CMP_FNE,
@@ -89,8 +111,9 @@ public final class IROpCodeMappings {
             "<=", IROpCode.CMP_FLE,
             ">=", IROpCode.CMP_FGE
     );
-
-    /** 64-bit（double）比较 */
+    /**
+     * 64-bit（double）比较
+     */
     public static final Map<String, IROpCode> CMP_D64 = Map.of(
             "==", IROpCode.CMP_DEQ,
             "!=", IROpCode.CMP_DNE,
@@ -99,4 +122,7 @@ public final class IROpCodeMappings {
             "<=", IROpCode.CMP_DLE,
             ">=", IROpCode.CMP_DGE
     );
+
+    private IROpCodeMappings() {
+    } // 禁止实例化
 }