clang/test/Sema/constant-builtins-all-args-evaluated.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

// RUN: %clang_cc1 -fsyntax-only -verify %s
// expected-no-diagnostics

constexpr int test_clzg_0() {
  int x = 0;
  (void)__builtin_clzg(0U, ++x);
  return x;
}

static_assert(test_clzg_0() == 1);

constexpr int test_clzg_1() {
  int x = 0;
  (void)__builtin_clzg(1U, ++x);
  return x;
}

static_assert(test_clzg_1() == 1);

constexpr int test_ctzg_0() {
  int x = 0;
  (void)__builtin_ctzg(0U, ++x);
  return x;
}

static_assert(test_ctzg_0() == 1);

constexpr int test_ctzg_1() {
  int x = 0;
  (void)__builtin_ctzg(1U, ++x);
  return x;
}

static_assert(test_ctzg_1() == 1);