complex_fms_pattern Class Reference

Inheritance diagram for complex_fms_pattern:

Collaboration diagram for complex_fms_pattern:

Public Member Functions
void	build (vec_info *) final override

Static Public Member Functions
static internal_fn	matches (complex_operation_t op, slp_tree_to_load_perm_map_t *, slp_compat_nodes_map_t *, slp_tree *, vec< slp_tree > *)
static vect_pattern *	recognize (slp_tree_to_load_perm_map_t *, slp_compat_nodes_map_t *, slp_tree *)
static vect_pattern *	mkInstance (slp_tree *node, vec< slp_tree > *m_ops, internal_fn ifn)
static internal_fn	matches (complex_operation_t op, slp_tree_to_load_perm_map_t *, slp_tree *, vec< slp_tree > *)

Protected Member Functions
	complex_fms_pattern (slp_tree *node, vec< slp_tree > *m_ops, internal_fn ifn)

Protected Attributes
auto_vec< slp_tree >	m_workset
unsigned	m_num_args
internal_fn	m_ifn
slp_tree *	m_node
vec< slp_tree >	m_ops

Constructor & Destructor Documentation

complex_fms_pattern()

complex_fms_pattern::complex_fms_pattern ( slp_tree * node, vec< slp_tree > * m_ops, internal_fn ifn )

inlineprotected

References vect_pattern::m_num_args.

Referenced by mkInstance(), and recognize().

Member Function Documentation

build()

void complex_fms_pattern::build ( vec_info * vinfo )

finaloverridevirtual

Perform a replacement of the detected complex mul pattern with the new
instruction sequences.   

Implements vect_pattern.

References complex_pattern::build(), FOR_EACH_VEC_ELT, ggc_alloc(), i, vect_pattern::m_node, vect_pattern::m_ops, SLP_TREE_CHILDREN, SLP_TREE_REF_COUNT, vect_build_combine_node(), and vect_free_slp_tree().

matches() [1/2]

internal_fn complex_fms_pattern::matches ( complex_operation_t op, slp_tree_to_load_perm_map_t * perm_cache, slp_compat_nodes_map_t * compat_cache, slp_tree * ref_node, vec< slp_tree > * ops )

static

Pattern matcher for trying to match complex multiply and subtract pattern
in SLP tree.  If the operation matches then IFN is set to the operation
it matched and the arguments to the two replacement statements are put in
m_ops.

If no match is found then IFN is set to IFN_LAST and m_ops is unchanged.

This function matches the patterns shaped as:

double ax = (b[i+1] * a[i]) + (b[i] * a[i]);
double bx = (a[i+1] * b[i]) - (a[i+1] * b[i+1]);

c[i] = c[i] - ax;
c[i+1] = c[i+1] + bx;

If a match occurred then TRUE is returned, else FALSE.  The initial match is
expected to be in OP1 and the initial match operands in args0.   

References CMPLX_NONE, CONJ_NONE, ggc_alloc(), IFN_LAST, linear_loads_p(), PERM_EVENODD, PLUS_MINUS, SLP_TREE_CHILDREN, vect_detect_pair_op(), vect_match_expression_p(), vect_pattern_validate_optab(), and vect_validate_multiplication().

Referenced by recognize(), and complex_operations_pattern::recognize().

matches() [2/2]

static internal_fn complex_pattern::matches ( complex_operation_t op, slp_tree_to_load_perm_map_t * , slp_tree * , vec< slp_tree > *  )

staticinherited

mkInstance()

static vect_pattern * complex_fms_pattern::mkInstance ( slp_tree * node, vec< slp_tree > * m_ops, internal_fn ifn )

inlinestatic

References complex_fms_pattern(), and vect_pattern::m_ops.

Referenced by complex_operations_pattern::recognize().

recognize()

vect_pattern * complex_fms_pattern::recognize ( slp_tree_to_load_perm_map_t * perm_cache, slp_compat_nodes_map_t * compat_cache, slp_tree * node )

static

Attempt to recognize a complex mul pattern.   

References complex_fms_pattern(), ggc_alloc(), IFN_LAST, matches(), NULL, and vect_detect_pair_op().

Field Documentation

m_ifn

internal_fn vect_pattern::m_ifn

protectedinherited

Referenced by complex_mul_pattern::build(), addsub_pattern::build(), and complex_pattern::build().

m_node

slp_tree* vect_pattern::m_node

protectedinherited

Referenced by complex_add_pattern::build(), complex_mul_pattern::build(), build(), and addsub_pattern::build().

m_num_args

unsigned vect_pattern::m_num_args

protectedinherited

Referenced by complex_mul_pattern::build(), complex_pattern::build(), complex_add_pattern::complex_add_pattern(), complex_fms_pattern(), complex_mul_pattern::complex_mul_pattern(), and complex_operations_pattern::complex_operations_pattern().

m_ops

vec<slp_tree> vect_pattern::m_ops

protectedinherited

Referenced by complex_add_pattern::build(), complex_mul_pattern::build(), build(), complex_add_pattern::mkInstance(), complex_mul_pattern::mkInstance(), mkInstance(), and vect_pattern::vect_pattern().

m_workset

auto_vec<slp_tree> complex_pattern::m_workset

protectedinherited

Referenced by complex_pattern::build().

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The documentation for this class was generated from the following file:

• tree-vect-slp-patterns.cc