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-rw-r--r--clang/test/CodeGen/lzcnt-builtins.c24
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diff --git a/clang/test/CodeGen/lzcnt-builtins.c b/clang/test/CodeGen/lzcnt-builtins.c
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+++ b/clang/test/CodeGen/lzcnt-builtins.c
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+// RUN: %clang_cc1 %s -O3 -triple=x86_64-apple-darwin -target-feature +lzcnt -emit-llvm -o - | FileCheck %s
+
+// Don't include mm_malloc.h, it's system specific.
+#define __MM_MALLOC_H
+
+#include <x86intrin.h>
+
+unsigned short test__lzcnt16(unsigned short __X)
+{
+ // CHECK: @llvm.ctlz.i16
+ return __lzcnt16(__X);
+}
+
+unsigned int test_lzcnt32(unsigned int __X)
+{
+ // CHECK: @llvm.ctlz.i32
+ return __lzcnt32(__X);
+}
+
+unsigned long long test__lzcnt64(unsigned long long __X)
+{
+ // CHECK: @llvm.ctlz.i64
+ return __lzcnt64(__X);
+}