stage2: implement fieldParentPtr

5 files changed, 38 insertions, 0 deletions

diff --git a/src/arch/aarch64/CodeGen.zig b/src/arch/aarch64/CodeGen.zig
index 39d7f6fd8a..2b863fd359 100644
--- a/src/arch/aarch64/CodeGen.zig
+++ b/src/arch/aarch64/CodeGen.zig
@@ -638,6 +638,8 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
             .struct_field_ptr_index_2 => try self.airStructFieldPtrIndex(inst, 2),
             .struct_field_ptr_index_3 => try self.airStructFieldPtrIndex(inst, 3),
 
+            .field_parent_ptr => try self.airFieldParentPtr(inst),
+
             .switch_br       => try self.airSwitch(inst),
             .slice_ptr       => try self.airSlicePtr(inst),
             .slice_len       => try self.airSliceLen(inst),
@@ -2118,6 +2120,13 @@ fn airStructFieldVal(self: *Self, inst: Air.Inst.Index) !void {
     //return self.finishAir(inst, result, .{ extra.struct_ptr, .none, .none });
 }
 
+fn airFieldParentPtr(self: *Self, inst: Air.Inst.Index) !void {
+    const ty_pl = self.air.instructions.items(.data)[inst].ty_pl;
+    const extra = self.air.extraData(Air.StructField, ty_pl.payload).data;
+    _ = extra;
+    return self.fail("TODO implement codegen airFieldParentPtr", .{});
+}
+
 fn airArg(self: *Self, inst: Air.Inst.Index) !void {
     const arg_index = self.arg_index;
     self.arg_index += 1;
diff --git a/src/arch/arm/CodeGen.zig b/src/arch/arm/CodeGen.zig
index 332a1876d4..8ad9e980cf 100644
--- a/src/arch/arm/CodeGen.zig
+++ b/src/arch/arm/CodeGen.zig
@@ -622,6 +622,8 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
             .struct_field_ptr_index_2 => try self.airStructFieldPtrIndex(inst, 2),
             .struct_field_ptr_index_3 => try self.airStructFieldPtrIndex(inst, 3),
 
+            .field_parent_ptr => try self.airFieldParentPtr(inst),
+
             .switch_br       => try self.airSwitch(inst),
             .slice_ptr       => try self.airSlicePtr(inst),
             .slice_len       => try self.airSliceLen(inst),
@@ -1735,6 +1737,13 @@ fn airStructFieldVal(self: *Self, inst: Air.Inst.Index) !void {
     return self.finishAir(inst, result, .{ extra.struct_operand, .none, .none });
 }
 
+fn airFieldParentPtr(self: *Self, inst: Air.Inst.Index) !void {
+    const ty_pl = self.air.instructions.items(.data)[inst].ty_pl;
+    const bin_op = self.air.extraData(Air.Bin, ty_pl.payload).data;
+    const result: MCValue = if (self.liveness.isUnused(inst)) .dead else return self.fail("TODO implement airFieldParentPtr", .{});
+    return self.finishAir(inst, result, .{ bin_op.lhs, bin_op.rhs, .none });
+}
+
 /// Don't call this function directly. Use binOp instead.
 ///
 /// Calling this function signals an intention to generate a Mir
diff --git a/src/arch/riscv64/CodeGen.zig b/src/arch/riscv64/CodeGen.zig
index 10764ad6cd..33c5b86351 100644
--- a/src/arch/riscv64/CodeGen.zig
+++ b/src/arch/riscv64/CodeGen.zig
@@ -609,6 +609,8 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
             .struct_field_ptr_index_2 => try self.airStructFieldPtrIndex(inst, 2),
             .struct_field_ptr_index_3 => try self.airStructFieldPtrIndex(inst, 3),
 
+            .field_parent_ptr => try self.airFieldParentPtr(inst),
+
             .switch_br       => try self.airSwitch(inst),
             .slice_ptr       => try self.airSlicePtr(inst),
             .slice_len       => try self.airSliceLen(inst),
@@ -1360,6 +1362,12 @@ fn airStructFieldVal(self: *Self, inst: Air.Inst.Index) !void {
     //return self.finishAir(inst, result, .{ extra.struct_ptr, .none, .none });
 }
 
+fn airFieldParentPtr(self: *Self, inst: Air.Inst.Index) !void {
+    _ = self;
+    _ = inst;
+    return self.fail("TODO implement codegen airFieldParentPtr", .{});
+}
+
 fn genArgDbgInfo(self: *Self, inst: Air.Inst.Index, mcv: MCValue, arg_index: u32) !void {
     const ty = self.air.instructions.items(.data)[inst].ty;
     const name = self.mod_fn.getParamName(arg_index);
diff --git a/src/arch/wasm/CodeGen.zig b/src/arch/wasm/CodeGen.zig
index 1fb7fc0e2f..888e78f8c2 100644
--- a/src/arch/wasm/CodeGen.zig
+++ b/src/arch/wasm/CodeGen.zig
@@ -1730,6 +1730,7 @@ fn genInst(self: *Self, inst: Air.Inst.Index) !WValue {
         .tag_name,
         .error_name,
         .errunion_payload_ptr_set,
+        .field_parent_ptr,
 
         // For these 4, probably best to wait until https://github.com/ziglang/zig/issues/10248
         // is implemented in the frontend before implementing them here in the wasm backend.
diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig
index 4b480c43cb..f7713a4e69 100644
--- a/src/arch/x86_64/CodeGen.zig
+++ b/src/arch/x86_64/CodeGen.zig
@@ -721,6 +721,8 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
             .struct_field_ptr_index_2 => try self.airStructFieldPtrIndex(inst, 2),
             .struct_field_ptr_index_3 => try self.airStructFieldPtrIndex(inst, 3),
 
+            .field_parent_ptr => try self.airFieldParentPtr(inst),
+
             .switch_br       => try self.airSwitch(inst),
             .slice_ptr       => try self.airSlicePtr(inst),
             .slice_len       => try self.airSliceLen(inst),
@@ -2656,6 +2658,15 @@ fn airStructFieldVal(self: *Self, inst: Air.Inst.Index) !void {
     return self.finishAir(inst, result, .{ extra.struct_operand, .none, .none });
 }
 
+fn airFieldParentPtr(self: *Self, inst: Air.Inst.Index) !void {
+    const ty_op = self.air.instructions.items(.data)[inst].ty_op;
+    const result: MCValue = if (self.liveness.isUnused(inst))
+        .dead
+    else
+        return self.fail("TODO implement airFieldParentPtr for {}", .{self.target.cpu.arch});
+    return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
+}
+
 /// Perform "binary" operators, excluding comparisons.
 /// Currently, the following ops are supported:
 /// ADD, SUB, XOR, OR, AND