8sa1-gcc/gcc/testsuite/g++.dg/cpp0x/constexpr-inline-1.C
Martin Sebor 3ea33585de PR c++/53792 - [C++11] improving compiler-time constexpr evaluation
gcc/testsuite/ChangeLog:
2016-03-14  Martin Sebor  <msebor@redhat.com>

	PR c++/53792
	* g++.dg/cpp0x/constexpr-inline.C: New test.
	* g++.dg/cpp0x/constexpr-inline-1.C: Same.

From-SVN: r234208
2016-03-14 21:05:17 -06:00

30 lines
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C

// PR c++/53792 - [C++11] improving compiler-time constexpr evaluation
// Test case from comment #8.
// { dg-do compile { target c++14 } }
// { dg-additional-options "-O1 -fdump-tree-optimized" }
template <class T>
void sink (T);
constexpr unsigned foo ()
{
unsigned i = 1;
while ((i << 1) > i)
i = i << 1;
return i;
}
template <unsigned N>
struct S { };
void bar ()
{
sink (foo ());
sink (S<foo ()>());
}
// Verify that the call to the foo() constexpr function is inlined
// regardless of whether or not it's invoked in a constant expression.
// { dg-final { scan-tree-dump-not "= *foo *\\\(" "optimized" } }