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//===- GmpConv.cpp - Recreate LLVM IR from the Scop. ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Functions for converting between gmp objects and apint.
//
//===----------------------------------------------------------------------===//
#include "polly/Support/GICHelper.h"
#include "llvm/IR/Value.h"
#include "isl/aff.h"
#include "isl/map.h"
#include "isl/schedule.h"
#include "isl/set.h"
#include "isl/space.h"
#include "isl/union_map.h"
#include "isl/union_set.h"
#include "isl/val.h"
using namespace llvm;
__isl_give isl_val *polly::isl_valFromAPInt(isl_ctx *Ctx, const APInt Int,
bool IsSigned) {
APInt Abs;
isl_val *v;
if (IsSigned)
Abs = Int.abs();
else
Abs = Int;
const uint64_t *Data = Abs.getRawData();
unsigned Words = Abs.getNumWords();
v = isl_val_int_from_chunks(Ctx, Words, sizeof(uint64_t), Data);
if (IsSigned && Int.isNegative())
v = isl_val_neg(v);
return v;
}
APInt polly::APIntFromVal(__isl_take isl_val *Val) {
uint64_t *Data;
int NumChunks;
NumChunks = isl_val_n_abs_num_chunks(Val, sizeof(uint64_t));
Data = (uint64_t *)malloc(NumChunks * sizeof(uint64_t));
isl_val_get_abs_num_chunks(Val, sizeof(uint64_t), Data);
APInt A(8 * sizeof(uint64_t) * NumChunks, NumChunks, Data);
if (isl_val_is_neg(Val)) {
A = A.zext(A.getBitWidth() + 1);
A = -A;
}
if (A.getMinSignedBits() < A.getBitWidth())
A = A.trunc(A.getMinSignedBits());
free(Data);
isl_val_free(Val);
return A;
}
template <typename ISLTy, typename ISL_CTX_GETTER, typename ISL_PRINTER>
static inline std::string stringFromIslObjInternal(__isl_keep ISLTy *isl_obj,
ISL_CTX_GETTER ctx_getter_fn,
ISL_PRINTER printer_fn) {
if (!isl_obj)
return "null";
isl_ctx *ctx = ctx_getter_fn(isl_obj);
isl_printer *p = isl_printer_to_str(ctx);
printer_fn(p, isl_obj);
char *char_str = isl_printer_get_str(p);
std::string string;
if (char_str)
string = char_str;
else
string = "null";
free(char_str);
isl_printer_free(p);
return string;
}
std::string polly::stringFromIslObj(__isl_keep isl_map *map) {
return stringFromIslObjInternal(map, isl_map_get_ctx, isl_printer_print_map);
}
std::string polly::stringFromIslObj(__isl_keep isl_set *set) {
return stringFromIslObjInternal(set, isl_set_get_ctx, isl_printer_print_set);
}
std::string polly::stringFromIslObj(__isl_keep isl_union_map *umap) {
return stringFromIslObjInternal(umap, isl_union_map_get_ctx,
isl_printer_print_union_map);
}
std::string polly::stringFromIslObj(__isl_keep isl_union_set *uset) {
return stringFromIslObjInternal(uset, isl_union_set_get_ctx,
isl_printer_print_union_set);
}
std::string polly::stringFromIslObj(__isl_keep isl_schedule *schedule) {
return stringFromIslObjInternal(schedule, isl_schedule_get_ctx,
isl_printer_print_schedule);
}
std::string polly::stringFromIslObj(__isl_keep isl_multi_aff *maff) {
return stringFromIslObjInternal(maff, isl_multi_aff_get_ctx,
isl_printer_print_multi_aff);
}
std::string polly::stringFromIslObj(__isl_keep isl_pw_multi_aff *pma) {
return stringFromIslObjInternal(pma, isl_pw_multi_aff_get_ctx,
isl_printer_print_pw_multi_aff);
}
std::string polly::stringFromIslObj(__isl_keep isl_union_pw_multi_aff *upma) {
return stringFromIslObjInternal(upma, isl_union_pw_multi_aff_get_ctx,
isl_printer_print_union_pw_multi_aff);
}
std::string polly::stringFromIslObj(__isl_keep isl_aff *aff) {
return stringFromIslObjInternal(aff, isl_aff_get_ctx, isl_printer_print_aff);
}
std::string polly::stringFromIslObj(__isl_keep isl_pw_aff *pwaff) {
return stringFromIslObjInternal(pwaff, isl_pw_aff_get_ctx,
isl_printer_print_pw_aff);
}
std::string polly::stringFromIslObj(__isl_keep isl_space *space) {
return stringFromIslObjInternal(space, isl_space_get_ctx,
isl_printer_print_space);
}
static void replace(std::string &str, const std::string &find,
const std::string &replace) {
size_t pos = 0;
while ((pos = str.find(find, pos)) != std::string::npos) {
str.replace(pos, find.length(), replace);
pos += replace.length();
}
}
static void makeIslCompatible(std::string &str) {
replace(str, ".", "_");
replace(str, "\"", "_");
replace(str, " ", "__");
replace(str, "=>", "TO");
}
std::string polly::getIslCompatibleName(const std::string &Prefix,
const std::string &Middle,
const std::string &Suffix) {
std::string S = Prefix + Middle + Suffix;
makeIslCompatible(S);
return S;
}
std::string polly::getIslCompatibleName(const std::string &Prefix,
const Value *Val,
const std::string &Suffix) {
std::string ValStr;
raw_string_ostream OS(ValStr);
Val->printAsOperand(OS, false);
ValStr = OS.str();
// Remove the leading %
ValStr.erase(0, 1);
return getIslCompatibleName(Prefix, ValStr, Suffix);
}
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