src/llvm/tools/clang/test/CodeGen/lzcnt-builtins.c

   1 // RUN: %clang_cc1 %s -O3 -triple=x86_64-apple-darwin -target-feature +lzcnt -emit-llvm -o - | FileCheck %s
   2
   3 // Don't include mm_malloc.h, it's system specific.
   4 #define __MM_MALLOC_H
   5
   6 #include <x86intrin.h>
   7
   8 unsigned short test__lzcnt16(unsigned short __X)
   9 {
  10   // CHECK: @llvm.ctlz.i16
  11   return __lzcnt16(__X);
  12 }
  13
  14 unsigned int test_lzcnt32(unsigned int __X)
  15 {
  16   // CHECK: @llvm.ctlz.i32
  17   return __lzcnt32(__X);
  18 }
  19
  20 unsigned long long test__lzcnt64(unsigned long long __X)
  21 {
  22   // CHECK: @llvm.ctlz.i64
  23   return __lzcnt64(__X);
  24 }