C++ ABI change: destroy value arguments in caller.
* calls.c (initialize_argument_information): Pass the address of the TARGET_EXPR temporary rather than storing it into another. From-SVN: r48983
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// { dg-do run }
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// Test that the destructor for a temporary passed by value isn't run
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// until end of full-expression, as per [class.copy]:
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// Whenever a temporary class object is copied using a copy constructor,
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// and this object and the copy have the same cv-unqualified type, an
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// implementation is permitted to treat the original and the copy as two
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// different ways of referring to the same object and not perform a copy
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// at all, even if the class copy constructor or destructor have side
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// effects.... In these cases, the
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// object is destroyed at the later of times when the original and the
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// copy would have been destroyed without the optimization.
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// Here, the temporary would be destroyed later than the parm, so either we
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// must suppress the optimization in this case or destroy value parms in the
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// caller.
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int d;
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struct A {
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A () { }
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A (const A&) { }
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~A() { ++d; }
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};
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void f (A a) { }
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int main ()
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{
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int r;
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f (A ()), r = d;
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if (r < d && d)
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return 0;
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else
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return 1;
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}
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