llvmir some opt

2025-12-10 17:58:17 +08:00
commit 84827838e2
103 changed files with 5838 additions and 0 deletions
--- a/midend/llvm/instr/GepInstr.java
+++ b/midend/llvm/instr/GepInstr.java
@@ -0,0 +1,57 @@
+package midend.llvm.instr;
+
+import midend.llvm.type.IrArrayType;
+import midend.llvm.type.IrPointerType;
+import midend.llvm.type.IrType;
+import midend.llvm.value.IrValue;
+
+public class GepInstr extends IrInstr {
+    public GepInstr(IrValue pointer, IrValue offset, String name) {
+        super(new IrPointerType(getTargetType(pointer)), name, IrInstrType.GEP);
+        addUse(pointer);
+        addUse(offset);
+    }
+
+    public IrValue getPointer() {
+        return getUse(0);
+    }
+
+    public IrValue getOffset() {
+        return getUse(1);
+    }
+
+    public String toString() {
+        IrValue pointer = this.getPointer();
+        IrValue offset = this.getOffset();
+
+        IrPointerType pointerType = (IrPointerType) pointer.getType();
+        IrType targetType = pointerType.getPointeeType();
+
+        if (targetType instanceof IrArrayType arrayType) {
+            return getName() + " = getelementptr inbounds " +
+                    arrayType + ", " +
+                    pointerType + " " +
+                    pointer.getName() + ", i32 0, " +
+                    offset.getType() + " " +
+                    offset.getName();
+        } else {
+            return getName() + " = getelementptr inbounds " +
+                    targetType + ", " +
+                    pointerType + " " +
+                    pointer.getName() + ", " +
+                    offset.getType() + " " +
+                    offset.getName();   
+        }
+    }
+
+    public static IrType getTargetType(IrValue pointer) {
+        IrType targetType = ((IrPointerType) pointer.getType()).getPointeeType();
+        if (targetType instanceof IrArrayType arrayType) {
+            return arrayType.getElementType();
+        } else if (targetType instanceof IrPointerType pointerType) {
+            return pointerType.getPointeeType();
+        } else {
+            return targetType;
+        }
+    }
+}