From ee85c8b6d05dbda541d4b0b8b402aafad8e582a3 Mon Sep 17 00:00:00 2001
From: Rue <78876133+IOKG04@users.noreply.github.com>
Date: Sat, 16 Aug 2025 04:36:09 +0200
Subject: [PATCH] re-enable std.math.modf vector tests (#24786)

* re-enable std.math.modf vector tests
* re-disable std.math.modf vector tests for `aarch64-macos`
* re-disable for s390x architecture
---
 lib/std/math/modf.zig | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/lib/std/math/modf.zig b/lib/std/math/modf.zig
index dda34454e3..870b4e6f6b 100644
--- a/lib/std/math/modf.zig
+++ b/lib/std/math/modf.zig
@@ -1,4 +1,5 @@
 const std = @import("../std.zig");
+const builtin = @import("builtin");
 const math = std.math;
 const expect = std.testing.expect;
 const expectEqual = std.testing.expectEqual;
@@ -84,18 +85,10 @@ fn ModfTests(comptime T: type) type {
             try expectApproxEqAbs(expected_c, r.fpart, epsilon);
         }
         test "vector" {
-            // Currently, a compiler bug is breaking the usage
-            // of @trunc on @Vector types
+            if (builtin.os.tag == .macos and builtin.cpu.arch == .aarch64) return error.SkipZigTest;
+            if (builtin.cpu.arch == .s390x) return error.SkipZigTest;
 
-            // TODO: Repopulate the below array and
-            // remove the skip statement once this
-            // bug is fixed
-
-            // const widths = [_]comptime_int{ 1, 2, 3, 4, 8, 16 };
-            const widths = [_]comptime_int{};
-
-            if (widths.len == 0)
-                return error.SkipZigTest;
+            const widths = [_]comptime_int{ 1, 2, 3, 4, 8, 16 };
 
             inline for (widths) |len| {
                 const V: type = @Vector(len, T);