test: fix x86_64-macos failures

This is just a temporary fix - I would like to unify all of x86_64
tests across linux and macos OSes.

1 files changed, 35 insertions, 0 deletions

diff --git a/test/incremental/x86_64-linux/assert_function.18.zig b/test/incremental/x86_64-linux/assert_function.18.zig
new file mode 100644
index 0000000000..31cf1207f3
--- /dev/null
+++ b/test/incremental/x86_64-linux/assert_function.18.zig
@@ -0,0 +1,35 @@
+const builtin = @import("builtin");
+
+extern "c" fn write(usize, usize, usize) usize;
+
+pub fn main() void {
+    for ("hello") |_| print();
+}
+
+fn print() void {
+    switch (builtin.os.tag) {
+        .linux => {
+            asm volatile ("syscall"
+                :
+                : [number] "{rax}" (1),
+                  [arg1] "{rdi}" (1),
+                  [arg2] "{rsi}" (@ptrToInt("hello\n")),
+                  [arg3] "{rdx}" (6),
+                : "rcx", "r11", "memory"
+            );
+        },
+        .macos => {
+            _ = write(1, @ptrToInt("hello\n"), 6);
+        },
+        else => unreachable,
+    }
+}
+
+// run
+//
+// hello
+// hello
+// hello
+// hello
+// hello
+//