Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/ipa/devirt-c-7.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* Verify that ipa-cp will not get confused by placement new constructing an object within another one when looking for dynamic type change . */ /* { dg-do run { target { nonpic || pie_enabled } } } */ /* { dg-options "-O3 -Wno-attributes" } */ extern "C" void abort (void); namespace std { typedef __SIZE_TYPE__ size_t; } inline void* __attribute__ ((always_inline)) operator new(std::size_t, void* __p) throw() { return __p; } class A { public: char data[256]; A(); virtual int foo (int i); }; class B : public A { public: virtual int foo (int i); }; class C { public: C(); virtual double foo (double i); }; int A::foo (int i) { return i + 1; } int B::foo (int i) { return i + 2; } double C::foo (double i) { return i + 3.5; } static int __attribute__ ((noinline)) middleman (class A *obj, int i) { return obj->foo (i); } int __attribute__ ((noinline,noclone)) get_input(void) { return 1; } __attribute__ ((always_inline)) C::C () { } A::A () { } static __attribute__ ((noinline)) void bah () { class B b; C *c = new ((void *) &b.data) C; if (middleman (&b, get_input ()) != 3) abort (); } int main (int argc, char *argv[]) { int i; for (i = 0; i < 10; i++) bah (); return 0; }