From e02e4757b1111fe66447f6c9a90d511017c930e2 Mon Sep 17 00:00:00 2001
From: zooster <r00ster91@proton.me>
Date: Fri, 16 Dec 2022 00:38:27 +0100
Subject: [PATCH] compiler_rt: test clzsi2 on zero on CPUs where possible

---
 lib/compiler_rt/clzsi2_test.zig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/compiler_rt/clzsi2_test.zig b/lib/compiler_rt/clzsi2_test.zig
index f54d35e357..fc0790ef71 100644
--- a/lib/compiler_rt/clzsi2_test.zig
+++ b/lib/compiler_rt/clzsi2_test.zig
@@ -268,7 +268,8 @@ test "clzsi2" {
     try test__clzsi2(0xFE000000, 0);
     try test__clzsi2(0xFF000000, 0);
     // arm and thumb1 assume input a != 0
-    //try test__clzsi2(0x00000000, 32);
+    if (!builtin.cpu.arch.isARM() and !builtin.cpu.arch.isThumb())
+        try test__clzsi2(0x00000000, 32);
     try test__clzsi2(0x00000001, 31);
     try test__clzsi2(0x00000002, 30);
     try test__clzsi2(0x00000004, 29);