1 files changed, 79 insertions, 0 deletions
diff --git a/src/vectors-default-8.h b/src/vectors-default-8.h
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+// Fallback vectorisation implementation: Do not vectorise
+
+
+
+// We use macros here, so that we are not surprised by compilers which
+// don't like to inline functions. This should also make debug builds
+// (which may not inline) more efficient.
+
+
+
+// Use CCTK_REAL8
+#define CCTK_REAL8_VEC CCTK_REAL8
+
+// Number of vector elements in a vector
+#define CCTK_REAL8_VEC_SIZE 1
+
+
+
+// Create a vector replicating a scalar
+#define vec8_set1(a) (a)
+// Create a vector from N scalars
+#define vec8_set(a) (a)
+
+// Access vectors elements
+#define vec8_elt0(x) (x)
+#define vec8_elt(x,d) (x)
+
+
+
+// Load an aligned vector from memory
+#define vec8_load(p) (p)
+// Load an unaligned vector from memory
+#define vec8_loadu(p) (p)
+
+// Load a vector from memory that may or may not be aligned, as
+// decided by the offset and the vector size. These functions are
+// useful e.g. for loading neightbouring grid points while evaluating
+// finite differencing stencils.
+#define vec8_loadu_maybe(off,p) (p)
+#define vec8_loadu_maybe3(off1,off2,off3,p) (p)
+
+// Aligned store
+#define vec8_store(p,x) ((p)=(x))
+// Unaligned store
+#define vec8_store_nta(p,x) ((p)=(x))
+
+// Store the n lower elements of a vector to memory
+#define vec8_store_nta_partial_lo(p,x,n) (assert(0))
+// Store the n higher elements of a vector into memory. This stores
+// the vector elements into memory locations as if element 0 were
+// stored at p.
+#define vec8_store_nta_partial_hi(p,x,n) (assert(0))
+
+
+
+// Operators
+#define k8pos(x) (+(x))
+#define k8neg(x) (-(x))
+
+#define k8add(x,y) ((x)+(y))
+#define k8sub(x,y) ((x)-(y))
+#define k8mul(x,y) ((x)*(y))
+#define k8div(x,y) ((x)/(y))
+
+// Fused multiply-add, defined as [+-]x*y[+-]z
+#define k8madd(x,y,z)  (+(x)*(y)+(z))
+#define k8msub(x,y,z)  (+(x)*(y)-(z))
+#define k8nmadd(x,y,z) (-(x)*(y)-(z))
+#define k8nmsub(x,y,z) (-(x)*(y)+(z))
+
+// Functions
+#define k8exp(x)    (exp(x))
+#define k8fabs(x)   (fabs(x))
+#define k8fmax(x,y) (fmax(x,y))
+#define k8fmin(x,y) (fmin(x,y))
+#define k8fnabs(x)  (-fabs(x))
+#define k8log(x)    (log(x))
+#define k8pow(x,a)  (pow(x,a))
+#define k8sqrt(x)   (sqrt(x))