Enable bitcast test now that #13214 is resolved.

ziglang · Oct 28, 2022 · 606915d · 606915d
1 parent 03ed0a5
commit 606915d
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/test/behavior/bitcast.zig b/test/behavior/bitcast.zig
@@ -375,12 +375,17 @@ test "comptime @bitCast packed struct to int and back" {
     }
 }
 
-test "comptime bitcast with fields following a float" {
-    if (builtin.zig_backend != .stage1) return error.SkipZigTest; // TODO: https://github.com/ziglang/zig/issues/13214
+test "comptime bitcast with fields following f80" {
+    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
 
     const FloatT = extern struct { f: f80, x: u128 };
     var x: FloatT = .{ .f = 0.5, .x = 123 };
-    try expect(@bitCast(u256, x) == comptime @bitCast(u256, @as(FloatT, .{ .f = 0.5, .x = 123 })));
+    const valid_mask = 0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff_0000_0000_0000_ffff_ffff_ffff_ffff_ffff;
+    try expect((@bitCast(u256, x) ^ comptime @bitCast(u256, FloatT{ .f = 0.5, .x = 123 })) & valid_mask == 0);
 }
 
 test "bitcast vector to integer and back" {