mips without optimize

2025-12-12 20:14:00 +08:00
parent 84827838e2
commit c94bebf37b
130 changed files with 5462 additions and 4182 deletions
--- a/midend/llvm/instr/TruncInstr.java
+++ b/midend/llvm/instr/TruncInstr.java
@@ -1,31 +1,50 @@
-package midend.llvm.instr;
-
-import midend.llvm.type.IrType;
-import midend.llvm.value.IrValue;
-
-public class TruncInstr extends IrInstr {
-    private IrType targetType;
-
-    public TruncInstr(IrType targetType, IrValue value, String name) {
-        super(targetType, name, IrInstrType.TRUNC);
-        addUse(value);
-        this.targetType = targetType;
-    }
-
-    public IrValue getSrc() {
-        return getUse(0);
-    }
-
-    public IrType getTargetType() {
-        return targetType;
-    }
-
-    public IrType getSrcType() {
-        return getSrc().getType();
-    }
-
-    public String toString() {
-        return getName() + " = trunc " + getSrcType()
-                + " " + getSrc().getName() + " to " + getTargetType();
-    }
-}
+package midend.llvm.instr;
+
+import backend.mips.MipsBuilder;
+import backend.mips.Register;
+import backend.mips.instr.MipsAlu;
+import backend.mips.instr.type.MipsAluType;
+
+import midend.llvm.type.IrType;
+import midend.llvm.value.IrValue;
+
+public class TruncInstr extends IrInstr {
+    private IrType targetType;
+
+    public TruncInstr(IrType targetType, IrValue value, String name) {
+        super(targetType, name, IrInstrType.TRUNC);
+        addUse(value);
+        this.targetType = targetType;
+    }
+
+    public IrValue getSrc() {
+        return getUse(0);
+    }
+
+    public IrType getTargetType() {
+        return targetType;
+    }
+
+    public IrType getSrcType() {
+        return getSrc().getType();
+    }
+
+    public String toString() {
+        return getName() + " = trunc " + getSrcType()
+                + " " + getSrc().getName() + " to " + getTargetType();
+    }
+
+    public void toMips() {
+        Register reg = MipsBuilder.getRegister(getSrc());
+        if (reg == null) {
+            reg = Register.K0;
+        }
+        loadValueToReg(getSrc(), reg);
+        if (this.targetType.isInt8()) {
+            new MipsAlu(MipsAluType.ANDI, reg, reg, 0xFF);
+        } else if (this.targetType.isBool()) {
+            new MipsAlu(MipsAluType.ANDI, reg, reg, 0x1);
+        }
+        saveResult(this, reg);
+    }
+}