CUDA: nvcc ICE with recent changes to the finite-difference classes

[bchretien]

Including the current finite-difference-gradient.hh in a program compiled with nvcc sends NVIDIA's compiler to outer space.

Repro code

#include <roboptim/core/decorator/finite-difference-gradient.hh>

int main(int argc, char *argv[])
{
}

Then compile with:

$ nvcc test_nvcc.cu -I/usr/include/eigen3

Output:

/usr/include/roboptim/core/decorator/finite-difference-gradient.hxx(307): internal error: assertion failed: alloc_copy_of_pending_pragma: copied pragma has source sequence entry (/dvs/p4/build/sw/rel/gpu_drv/r352/r352_00/drivers/compiler/edg/EDG_4.9/src/pragma.c, line 512)


1 catastrophic error detected in the compilation of "/tmp/tmpxft_000055d7_00000000-5_test_nvcc.cpp4.ii".
Compilation aborted.
nvcc error   : 'cudafe++' died due to signal 6 
nvcc error   : 'cudafe++' core dumped

More information

This was tested on Arch Linux 64bit with CUDA 7.5, and roboptim-core 26dbc63.

[bchretien]

Updated repro code that does not depend on RobOptim:

#define ROBOPTIM_ALLOW_DEPRECATED_ON \
  /* Disable deprecated warning */   \
  _Pragma ("GCC diagnostic push")    \
  _Pragma ("GCC diagnostic ignored \"-Wdeprecated-declarations\"")

#define ROBOPTIM_ALLOW_DEPRECATED_OFF \
  /* Re-enable deprecated warning */  \
  _Pragma ("GCC diagnostic pop")

// Works (no template)
void foo ()
{
  ROBOPTIM_ALLOW_DEPRECATED_ON;
  ROBOPTIM_ALLOW_DEPRECATED_OFF;
}

// Fails (template)
template <typename T>
void bar ()
{
  ROBOPTIM_ALLOW_DEPRECATED_ON;
  ROBOPTIM_ALLOW_DEPRECATED_OFF;
}

int main (int argc, char *argv[])
{
}

[bchretien]

Bug reported to the NVIDIA developers (id 1726501), hopefully they'll tell us if we're doing something fishy here, or if it's a bug in the CUDA compiler.

[bchretien]

Response from the NVIDIA developers:

This issue has been fixed in our development builds, and the fix will be available for you in the next CUDA release.
Thank you for the reporting!

In the meantime, we'll just use our workaround, so I'm closing the issue.