[clang] Implement lifetime analysis for lifetime_capture_by(X) (#115921)
[llvm-project.git] / clang / test / CodeGen / X86 / lzcnt-builtins.c
blob18ced89fc79b1c86f06f83572b8d17cd1ee1d75d
1 // RUN: %clang_cc1 -x c -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +lzcnt -emit-llvm -o - | FileCheck %s
2 // RUN: %clang_cc1 -x c++ -std=c++11 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +lzcnt -emit-llvm -o - | FileCheck %s
5 #include <immintrin.h>
7 unsigned short test__lzcnt16(unsigned short __X)
9 // CHECK: @llvm.ctlz.i16(i16 %{{.*}}, i1 false)
10 return __lzcnt16(__X);
13 unsigned int test_lzcnt32(unsigned int __X)
15 // CHECK: @llvm.ctlz.i32(i32 %{{.*}}, i1 false)
16 return __lzcnt32(__X);
19 unsigned long long test__lzcnt64(unsigned long long __X)
21 // CHECK: @llvm.ctlz.i64(i64 %{{.*}}, i1 false)
22 return __lzcnt64(__X);
25 unsigned int test_lzcnt_u32(unsigned int __X)
27 // CHECK: @llvm.ctlz.i32(i32 %{{.*}}, i1 false)
28 return _lzcnt_u32(__X);
31 unsigned long long test__lzcnt_u64(unsigned long long __X)
33 // CHECK: @llvm.ctlz.i64(i64 %{{.*}}, i1 false)
34 return _lzcnt_u64(__X);
38 // Test constexpr handling.
39 #if defined(__cplusplus) && (__cplusplus >= 201103L)
40 char lzcnt16_0[__lzcnt16(0x0000) == 16 ? 1 : -1];
41 char lzcnt16_1[__lzcnt16(0x8000) == 0 ? 1 : -1];
42 char lzcnt16_2[__lzcnt16(0x0010) == 11 ? 1 : -1];
44 char lzcnt32_0[__lzcnt32(0x00000000) == 32 ? 1 : -1];
45 char lzcnt32_1[__lzcnt32(0x80000000) == 0 ? 1 : -1];
46 char lzcnt32_2[__lzcnt32(0x00000010) == 27 ? 1 : -1];
48 char lzcnt64_0[__lzcnt64(0x0000000000000000ULL) == 64 ? 1 : -1];
49 char lzcnt64_1[__lzcnt64(0x8000000000000000ULL) == 0 ? 1 : -1];
50 char lzcnt64_2[__lzcnt64(0x0000000100000000ULL) == 31 ? 1 : -1];
52 char lzcntu32_0[_lzcnt_u32(0x00000000) == 32 ? 1 : -1];
53 char lzcntu32_1[_lzcnt_u32(0x80000000) == 0 ? 1 : -1];
54 char lzcntu32_2[_lzcnt_u32(0x00000010) == 27 ? 1 : -1];
56 char lzcntu64_0[_lzcnt_u64(0x0000000000000000ULL) == 64 ? 1 : -1];
57 char lzcntu64_1[_lzcnt_u64(0x8000000000000000ULL) == 0 ? 1 : -1];
58 char lzcntu64_2[_lzcnt_u64(0x0000000100000000ULL) == 31 ? 1 : -1];
59 #endif