Commit 2926d95e6a

@@ -5966,7 +5966,7 @@ pub const FuncGen = struct {
                         const shift_amt = containing_int.typeOf().constInt(bit_offset, .False);
                         const shifted_value = self.builder.buildLShr(containing_int, shift_amt, "");
                         const elem_llvm_ty = try self.dg.lowerType(field_ty);
-                        if (field_ty.zigTypeTag() == .Float) {
+                        if (field_ty.zigTypeTag() == .Float or field_ty.zigTypeTag() == .Vector) {
                             const elem_bits = @intCast(c_uint, field_ty.bitSize(target));
                             const same_size_int = self.context.intType(elem_bits);
                             const truncated_int = self.builder.buildTrunc(shifted_value, same_size_int, "");
@@ -5989,7 +5989,7 @@ pub const FuncGen = struct {
                     assert(struct_ty.containerLayout() == .Packed);
                     const containing_int = struct_llvm_val;
                     const elem_llvm_ty = try self.dg.lowerType(field_ty);
-                    if (field_ty.zigTypeTag() == .Float) {
+                    if (field_ty.zigTypeTag() == .Float or field_ty.zigTypeTag() == .Vector) {
                         const elem_bits = @intCast(c_uint, field_ty.bitSize(target));
                         const same_size_int = self.context.intType(elem_bits);
                         const truncated_int = self.builder.buildTrunc(containing_int, same_size_int, "");
@@ -9889,7 +9889,7 @@ pub const FuncGen = struct {
             return result_ptr;
         }
 
-        if (info.pointee_type.zigTypeTag() == .Float) {
+        if (info.pointee_type.zigTypeTag() == .Float or info.pointee_type.zigTypeTag() == .Vector) {
             const same_size_int = self.context.intType(elem_bits);
             const truncated_int = self.builder.buildTrunc(shifted_value, same_size_int, "");
             return self.builder.buildBitCast(truncated_int, elem_llvm_ty, "");

@@ -358,9 +358,6 @@ test "comptime @bitCast packed struct to int and back" {
     const rt_cast = @bitCast(S, i);
     const ct_cast = comptime @bitCast(S, @as(Int, 0));
     inline for (@typeInfo(S).Struct.fields) |field| {
-        if (@typeInfo(field.type) == .Vector)
-            continue; //TODO: https://github.com/ziglang/zig/issues/13201
-
         try expectEqual(@field(rt_cast, field.name), @field(ct_cast, field.name));
     }
 }