// PR middle-end/25977 // Bug: We were assuming that the return slot of the current function is // always safe to use as the return slot for another call, because its // address cannot escape. But its address can escape if we perform the // named return value optimization. // { dg-do run } struct A { A( int left, int top, int width, int height ) : x1(left), y1(top), x2(left+width-1), y2(top+height-1) {} //A(const A& o) : x1(o.x1), y1(o.y1), x2(o.x2), y2(o.y2) {} //A& operator=(const A& o ) { x1=o.x1; y1=o.y1; x2=o.x2; y2=o.y2; return *this; } A operator&(const A &r) const { A tmp(0, 0, -1, -1); tmp.x1 = ((r.x1) < (x1) ? (x1) : (r.x1)); tmp.x2 = ((x2) < (r.x2) ? (x2) : (r.x2)); tmp.y1 = ((r.y1) < (y1) ? (y1) : (r.y1)); tmp.y2 = ((y2) < (r.y2) ? (y2) : (r.y2)); return tmp; } int x1; int y1; int x2; int y2; }; bool operator==( const A &r1, const A &r2 ) { return r1.x1==r2.x1 && r1.x2==r2.x2 && r1.y1==r2.y1 && r1.y2==r2.y2; } static A test() { A all = A( 0, 0, 1024, 768); A a = all; A r = all; a = a & r; return a; } extern "C" void abort(void); int main( int argc, char ** argv ) { A all = A( 0, 0, 1024, 768); A a = test(); if ( ! ( a == all)) abort(); return 0; }