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#ifndef IRTOOLS_HH
#define IRTOOLS_HH
/*!
* \file
* \brief Useful tools to analyze code in compiler IR format.
*/
#include <vector>
#include <omega.h>
#include <code_gen/CG_outputRepr.h>
#include "ir_code.hh"
#include "dep.hh"
//! It is used to initialize a loop.
struct ir_tree_node {
IR_Control *content;
ir_tree_node *parent;
std::vector<ir_tree_node *> children;
/*!
* * For a loop node, payload is its mapped iteration space dimension.
* * For a simple block node, payload is its mapped statement number.
* * Normal if-else is splitted into two nodes
* * the one with odd payload represents then-part and
* * the one with even payload represents else-part.
*/
int payload;
~ir_tree_node() {
for (int i = 0; i < children.size(); i++)
delete children[i];
delete content;
}
};
//! Build IR tree from the source code
/*!
* Block type node can only be leaf, i.e., there is no further stuctures inside a block allowed
* @param control
* @param parent
* @return
*/
std::vector<ir_tree_node *> build_ir_tree(IR_Control *control,
ir_tree_node *parent = NULL);
//! Extract statements from IR tree
/*!
* Statements returned are ordered in lexical order in the source code
* @param ir_tree
* @return
*/
std::vector<ir_tree_node *> extract_ir_stmts(
const std::vector<ir_tree_node *> &ir_tree);
bool is_dependence_valid(ir_tree_node *src_node, ir_tree_node *dst_node,
const DependenceVector &dv, bool before);
//! test data dependeces between two statements
/*!
* The first statement in parameter must be lexically before the second statement in parameter.
* Returned dependences are all lexicographically positive
* @param ir
* @param repr1
* @param IS1
* @param repr2
* @param IS2
* @param freevar
* @param index
* @param i
* @param j
* @return Dependecies between the two statements. First vector is dependencies from first to second,
* second vector is the reverse
*/
std::pair<std::vector<DependenceVector>, std::vector<DependenceVector> > test_data_dependences(
IR_Code *ir, const omega::CG_outputRepr *repr1,
const omega::Relation &IS1, const omega::CG_outputRepr *repr2,
const omega::Relation &IS2, std::vector<omega::Free_Var_Decl*> &freevar,
std::vector<std::string> index, int i, int j);
#endif
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