------- Additional Comments From rguenth at gcc dot gnu dot org 2005-08-26
14:30 -------
For your last testcase,
struct A { int a[1000]; }
A f();
void g(A);
void h() { g(f()); }
all of 3.4 and 4.1 produce exactly two temporaries.
One to dump the result of f(), which get's copied to a new temp passed to g().
4.0 though produces one extra unnecessary copy.
The same holds true for C testcases.
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What |Removed |Added
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GCC host triplet|i486-linux-gnu |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23372
