clang/test/CodeGen/X86/lzcnt-builtins.c

   1 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +lzcnt -emit-llvm -o - | FileCheck %s
   2
   3
   4 #include <immintrin.h>
   5
   6 unsigned short test__lzcnt16(unsigned short __X)
   7 {
   8   // CHECK: @llvm.ctlz.i16(i16 %{{.*}}, i1 false)
   9   return __lzcnt16(__X);
  10 }
  11
  12 unsigned int test_lzcnt32(unsigned int __X)
  13 {
  14   // CHECK: @llvm.ctlz.i32(i32 %{{.*}}, i1 false)
  15   return __lzcnt32(__X);
  16 }
  17
  18 unsigned long long test__lzcnt64(unsigned long long __X)
  19 {
  20   // CHECK: @llvm.ctlz.i64(i64 %{{.*}}, i1 false)
  21   return __lzcnt64(__X);
  22 }
  23
  24 unsigned int test_lzcnt_u32(unsigned int __X)
  25 {
  26   // CHECK: @llvm.ctlz.i32(i32 %{{.*}}, i1 false)
  27   return _lzcnt_u32(__X);
  28 }
  29
  30 unsigned long long test__lzcnt_u64(unsigned long long __X)
  31 {
  32   // CHECK: @llvm.ctlz.i64(i64 %{{.*}}, i1 false)
  33   return _lzcnt_u64(__X);
  34 }