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bug #779: allow non aligned buffers for buffers smaller than the requested alignment.

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This commit is contained in:
Gael Guennebaud 2016-02-05 21:46:39 +01:00
parent e8e1d504d6
commit 5b2d287878
3 changed files with 6 additions and 5 deletions
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3
Eigen/src/Core/MapBase.h
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@ -165,7 +165,8 @@ template<typename Derived> class MapBase<Derived, ReadOnlyAccessors>
void checkSanity() const void checkSanity() const
{ {
#if EIGEN_MAX_ALIGN_BYTES>0 #if EIGEN_MAX_ALIGN_BYTES>0
eigen_assert(((size_t(m_data) % EIGEN_PLAIN_ENUM_MAX(1,internal::traits<Derived>::Alignment)) == 0) && "data is not aligned"); eigen_assert(( ((size_t(m_data) % EIGEN_PLAIN_ENUM_MAX(1,internal::traits<Derived>::Alignment)) == 0)
|| (cols() * rows() * innerStride() * sizeof(Scalar)) < internal::traits<Derived>::Alignment ) && "data is not aligned");
#endif #endif
} }

6
test/dynalloc.cpp
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@ -31,7 +31,7 @@ void check_handmade_aligned_malloc()
void check_aligned_malloc() void check_aligned_malloc()
{ {
for(int i = 1; i < 1000; i++) for(int i = ALIGNMENT; i < 1000; i++)
{ {
char *p = (char*)internal::aligned_malloc(i); char *p = (char*)internal::aligned_malloc(i);
VERIFY(size_t(p)%ALIGNMENT==0); VERIFY(size_t(p)%ALIGNMENT==0);
@ -43,7 +43,7 @@ void check_aligned_malloc()
void check_aligned_new() void check_aligned_new()
{ {
for(int i = 1; i < 1000; i++) for(int i = ALIGNMENT; i < 1000; i++)
{ {
float *p = internal::aligned_new<float>(i); float *p = internal::aligned_new<float>(i);
VERIFY(size_t(p)%ALIGNMENT==0); VERIFY(size_t(p)%ALIGNMENT==0);
@ -55,7 +55,7 @@ void check_aligned_new()
void check_aligned_stack_alloc() void check_aligned_stack_alloc()
{ {
for(int i = 1; i < 400; i++) for(int i = ALIGNMENT; i < 400; i++)
{ {
ei_declare_aligned_stack_constructed_variable(float,p,i,0); ei_declare_aligned_stack_constructed_variable(float,p,i,0);
VERIFY(size_t(p)%ALIGNMENT==0); VERIFY(size_t(p)%ALIGNMENT==0);

2
test/mapped_matrix.cpp
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@ -40,7 +40,7 @@ template<typename VectorType> void map_class_vector(const VectorType& m)
VERIFY_IS_EQUAL(ma1, ma3); VERIFY_IS_EQUAL(ma1, ma3);
VERIFY_IS_EQUAL(ma1, ma4); VERIFY_IS_EQUAL(ma1, ma4);
#ifdef EIGEN_VECTORIZE #ifdef EIGEN_VECTORIZE
if(internal::packet_traits<Scalar>::Vectorizable) if(internal::packet_traits<Scalar>::Vectorizable && size>=AlignedMax)
VERIFY_RAISES_ASSERT((Map<VectorType,AlignedMax>(array3unaligned, size))) VERIFY_RAISES_ASSERT((Map<VectorType,AlignedMax>(array3unaligned, size)))
#endif #endif