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Disable vectorization pragma's if we detect the compiler doesn't support them.

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This commit is contained in:
Robert Maynard 2015-12-03 11:55:41 -05:00
parent bfb6c26a98
commit 05e8f592cd
1 changed files with 15 additions and 5 deletions
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20
vtkm/internal/Configure.h.in
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@ -148,26 +148,36 @@
#define VTKM_THIRDPARTY_POST_INCLUDE
#endif
//Determine if current compiler supports vectorization pragma's
//if so set the define VTKM_COMPILER_SUPPORTS_VECTOR_PRAGMAS
#if ( defined(VTKM_GCC) && ( __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9) ) ) || \
( defined(VTKM_ICC) && (__INTEL_COMPILER >= 1400) ) || \
( defined(VTKM_CLANG) && defined(__apple_build_version__) && (__apple_build_version__ >= 7000000) ) || \
( defined(VTKM_CLANG) && !defined(__apple_build_version__) && (__clang_major__ > 3) ) || \
( defined(VTKM_CLANG) && !defined(__apple_build_version__) && (__clang_major__ == 3 && __clang_minor__ >= 5) )
#define VTKM_COMPILER_SUPPORTS_VECTOR_PRAGMAS 1
#endif
// Define a pair of macros, VTKM_VECTORIZATION_PRE_LOOP and VTKM_VECTORIZATION_IN_LOOP,
// that should be wrapped around any "for"/"while" that you want vectorized.
// This is used to set per compiler pragmas for vectorization, and to disable
// any warnings that about vectorization failures.
#if defined(VTKM_CLANG)
#if defined(VTKM_CLANG) && defined(VTKM_COMPILER_SUPPORTS_VECTOR_PRAGMAS)
//clang only needs pre loop
#define VTKM_VECTORIZATION_PRE_LOOP \
_Pragma("clang loop vectorize(enable) interleave(enable)")
#define VTKM_VECTORIZATION_IN_LOOP
#elif defined(VTKM_ICC)
#elif defined(VTKM_ICC) && defined(VTKM_COMPILER_SUPPORTS_VECTOR_PRAGMAS)
//icc needs pre and in loop
#define VTKM_VECTORIZATION_PRE_LOOP \
_Pragma("simd")
#define VTKM_VECTORIZATION_IN_LOOP \
_Pragma("forceinline recursive")
#elif defined(VTKM_GCC)
#elif defined(VTKM_GCC) && defined(VTKM_COMPILER_SUPPORTS_VECTOR_PRAGMAS)
//gcc only needs in loop
#define VTKM_VECTORIZATION_PRE_LOOP
_Pragma("ivdep")
_Pragma("ivdep") \
#define VTKM_VECTORIZATION_IN_LOOP
#else
#define VTKM_VECTORIZATION_PRE_LOOP