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Compile the following testcase with /opt/intel/composer_xe_2013_sp1.3.174/bin/intel64/icpc -O0 -std=c++11 -c
struct V { static constexpr int Size = 1; }; template <typename To, typename From> inline To cast(From x); template <int N, int = 1> struct sarray { typedef sarray<N / 2> S; sarray foo() const { const auto b = d.foo().bar(); } sarray bar() const { return {cast<S>(d)}; } S d; }; template <int N> struct sarray<N, N> { static constexpr int Size = 1; sarray foo() const {} sarray bar() const {} V d; }; template <typename To, typename From, typename... Froms> inline To drop_arguments(Froms..., From, From); template <typename To, typename From, typename... Froms> inline To cast(From x, Froms... xs) { using R0 = typename To::S; return {drop_arguments<R0, Froms...>(x, xs...)}; } template <typename To, int N, typename... From> inline To cast(const sarray<N, N> &x0, const From &... xs) { return cast<To>(x0.d, xs.d...); } template <typename To, int N, int M, typename... From> inline To cast(const sarray<N, M> &x0, const From &... xs) { return cast<To>(x0.d, xs.d..., x0.d, xs.d...); } template <typename To, typename From, typename... Froms> inline To drop_arguments(Froms..., From, From) { } void test() { sarray<8>().foo(); }
This is the output I get:
icc-ice.cpp(37): internal error: assertion failed at: "shared/cfe/edgcpfe/func_def.c", line 1576
{
^
compilation aborted for icc-ice.cpp (code 4)
PS: I tried to report this to Intel Premier Support, but once again that site is broken ... :-(
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Mathias,
I'll have a look at the ICE. What exactly was the Problem with the Intel Premier Support? Did you see an error message or just a Crash or was your Login rejected?
Regards, Hubert.
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It said something about an invalid URL and that I should contact my admin. I couldn't make any sense of it...
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Matthias,
May have been a temporary problem. I do not see any issue with your account.
Could you please check again if you can log in to: https://premier.intel.com ? Please enter this URL manually, not from a Bookmark you may have stored. If the Problem persists, could you please take a screenshot and send it to me via 'Send Author A Message' link?
Hubert.
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Matthias,
I can reprodcue the ICE with your variadic template sample. I'm going to file a defect.
Regards, Hubert
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