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//===- subzero/crosstest/test_global.cpp - Global variable access tests ---===//
//
// The Subzero Code Generator
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Implementation for crosstesting global variable access operations.
//
//===----------------------------------------------------------------------===//
#include <stdint.h>
#include <cstdlib>
#include "test_global.h"
// Note: The following take advantage of the fact that external global
// names are not mangled with the --prefix CL argument. Hence, they
// should have the same relocation value for both llc and Subzero.
extern uint8_t *ExternName1;
extern uint8_t *ExternName2;
extern uint8_t *ExternName3;
extern uint8_t *ExternName4;
extern uint8_t *ExternName5;
// Partially initialized array
int ArrayInitPartial[10] = {60, 70, 80, 90, 100};
int ArrayInitFull[] = {10, 20, 30, 40, 50};
const int ArrayConst[] = {-10, -20, -30};
static double ArrayDouble[10] = {0.5, 1.5, 2.5, 3.5};
static struct {
int Array1[5];
uint8_t *Pointer1;
double Array2[3];
uint8_t *Pointer2;
struct {
uint8_t *Pointer3;
int Array1[3];
uint8_t *Pointer4;
} NestedStuff;
uint8_t *Pointer5;
} StructEx = {
{10, 20, 30, 40, 50},
ExternName1,
{0.5, 1.5, 2.5},
ExternName4,
{ExternName3, {1000, 1010, 1020}, ExternName2},
ExternName5,
};
#define ARRAY(a) \
{ (uint8_t *)(a), sizeof(a) }
// Note: By embedding the array addresses in this table, we are indirectly
// testing relocations (i.e. getArray would return the wrong address if
// relocations are broken).
struct {
uint8_t *ArrayAddress;
size_t ArraySizeInBytes;
} Arrays[] = {
ARRAY(ArrayInitPartial),
ARRAY(ArrayInitFull),
ARRAY(ArrayConst),
ARRAY(ArrayDouble),
{(uint8_t *)(ArrayInitPartial + 2),
sizeof(ArrayInitPartial) - 2 * sizeof(int)},
{(uint8_t *)(&StructEx), sizeof(StructEx)},
};
size_t NumArraysElements = sizeof(Arrays) / sizeof(*Arrays);
size_t getNumArrays() { return NumArraysElements; }
const uint8_t *getArray(size_t WhichArray, size_t &Len) {
if (WhichArray >= NumArraysElements) {
Len = -1;
return NULL;
}
Len = Arrays[WhichArray].ArraySizeInBytes;
return Arrays[WhichArray].ArrayAddress;
}