File: dynamic-cast.cpp

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (24 lines) | stat: -rw-r--r-- 763 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
 
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -emit-llvm -fcxx-exceptions -fexceptions -o - | FileCheck %s
struct A { virtual void f(); };
struct B : A { };

// CHECK: {{define.*@_Z1fP1A}}
// CHECK-SAME:  personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
B fail;
const B& f(A *a) {
  try {
    // CHECK: call i8* @__dynamic_cast
    // CHECK: br i1
    // CHECK: invoke void @__cxa_bad_cast() [[NR:#[0-9]+]]
    dynamic_cast<const B&>(*a);
  } catch (...) {
    // CHECK:      landingpad { i8*, i32 }
    // CHECK-NEXT:   catch i8* null
  }
  return fail;
}

// CHECK: declare i8* @__dynamic_cast(i8*, i8*, i8*, i64) [[NUW_RO:#[0-9]+]]

// CHECK: attributes [[NUW_RO]] = { nounwind readonly }
// CHECK: attributes [[NR]] = { noreturn }