File: castexpr-basepathsize-threshold.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (31 lines) | stat: -rw-r--r-- 915 bytes parent folder | download | duplicates (21) 
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
 
// RUN: %clang_cc1 %s -emit-llvm-only -o -

// https://bugs.llvm.org/show_bug.cgi?id=38356
// We only check that we do not crash.

// This test can exceed stack usage in some configurations, so unless we can
// properly handle that don't run it.
// REQUIRES: thread_support

template <typename a, a b(unsigned), int c, unsigned...>
struct d : d<a, b, c - 1> {};
template <typename a, a b(unsigned), unsigned... e>
struct d<a, b, 0, e...> {
  a f[0];
};
struct g {
  static g h(unsigned);
};
struct i {
  void j() const;
  // Current maximum depth of recursive template instantiation is 1024,
  // thus, this \/ threshold value is used here. BasePathSize in CastExpr might
  // not fit it, so we are testing that we do fit it.
  // If -ftemplate-depth= is provided, larger values (4096 and up) cause crashes
  // elsewhere.
  d<g, g::h, (1U << 10U) - 2U> f;
};
void i::j() const {
  const void *k{f.f};
  (void)k;
}