Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/opt/cfg3.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
line wrap: on
line source
// PR optimization/11646 // Origin: <nick@ilm.com> // This used to fail because the compiler inadvertently cleared // the EDGE_ABNORMAL flag on a EDGE_EH edge and didn't delete // unreachable blocks after CSE. // { dg-do compile } // { dg-options "-O -fgcse -fnon-call-exceptions" } struct C { int i; }; struct allocator { ~allocator() throw() {} }; struct _Vector_alloc_base { _Vector_alloc_base(const allocator& __a) {} allocator _M_data_allocator; struct C *_M_start, *_M_end_of_storage; void _M_deallocate(struct C* __p, unsigned int __n) {} }; struct _Vector_base : _Vector_alloc_base { _Vector_base(const allocator& __a) : _Vector_alloc_base(__a) { } ~_Vector_base() { _M_deallocate(0, _M_end_of_storage - _M_start); } }; struct vector : _Vector_base { vector(const allocator& __a = allocator()) : _Vector_base(__a) {} struct C& operator[](unsigned int __n) { return *_M_start; } }; struct A { float l() const; A operator-(const A &) const; const A& operator=(float) const; }; struct B { float d(); }; float f(const A& a, B& b) { vector vc; int index = vc[0].i; A aa; float d = (aa - a).l(); if (d > b.d()) aa = 0; return b.d(); }