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jeremybenn |
/* { dg-do compile } */
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/* { dg-options "-fgnu-tm -O3" } */
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/* The function calculateCircumCircle() should get inlined into the TM
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clone for TMelement_alloc(), so we don't need to generate a TM
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clone for calculateCircumCircle(). We also don't need to put its
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entry into the clone table since it's static. */
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/* { dg-final { scan-assembler-not "ZGTt21calculateCircumCircle" } } */
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extern double sqrt(double) __attribute__((transaction_pure));
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extern void *xmalloc(int) __attribute__((transaction_safe));
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typedef struct coordinate {
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double x;
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double y;
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} coordinate_t;
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typedef struct element {
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coordinate_t coordinates[3];
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long numCoordinate;
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coordinate_t circumCenter;
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double circumRadius;
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} element_t;
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__attribute__((transaction_safe))
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double
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coordinate_distance (coordinate_t* coordinatePtr, coordinate_t* aPtr)
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{
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return sqrt( coordinatePtr->x );
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}
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__attribute__((transaction_safe))
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static void
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calculateCircumCircle (element_t* elementPtr)
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{
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long numCoordinate = elementPtr->numCoordinate;
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coordinate_t* coordinates = elementPtr->coordinates;
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coordinate_t* circumCenterPtr = &elementPtr->circumCenter;
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((void) (0));
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if (numCoordinate == 2) {
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circumCenterPtr->x = (coordinates[0].x + coordinates[1].x) / 2.0;
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circumCenterPtr->y = (coordinates[0].y + coordinates[1].y) / 2.0;
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}
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else {
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double ax = coordinates[0].x;
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double ay = coordinates[0].y;
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double bx = coordinates[1].x;
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double by = coordinates[1].y;
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double cx = coordinates[2].x;
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double cy = coordinates[2].y;
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double bxDelta = bx - ax;
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double byDelta = by - ay;
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double cxDelta = cx - ax;
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double cyDelta = cy - ay;
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double bDistance2 = (bxDelta * bxDelta) + (byDelta * byDelta);
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double cDistance2 = (cxDelta * cxDelta) + (cyDelta * cyDelta);
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double xNumerator = (byDelta * cDistance2) - (cyDelta * bDistance2);
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double yNumerator = (bxDelta * cDistance2) - (cxDelta * bDistance2);
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double denominator = 2 * ((bxDelta * cyDelta) - (cxDelta * byDelta));
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double rx = ax - (xNumerator / denominator);
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double ry = ay + (yNumerator / denominator);
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circumCenterPtr->x = rx;
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circumCenterPtr->y = ry;
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}
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elementPtr->circumRadius = coordinate_distance(circumCenterPtr,
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&coordinates[0]);
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}
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element_t*
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element_alloc (coordinate_t* coordinates, long numCoordinate)
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{
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element_t* elementPtr;
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elementPtr = (element_t*)xmalloc(sizeof(element_t));
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if (elementPtr) {
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calculateCircumCircle(elementPtr);
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}
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return elementPtr;
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}
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__attribute__((transaction_safe))
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element_t*
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TMelement_alloc (coordinate_t* coordinates, long numCoordinate)
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{
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element_t* elementPtr;
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elementPtr = (element_t*)xmalloc(sizeof(element_t));
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if (elementPtr) {
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calculateCircumCircle(elementPtr);
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}
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return elementPtr;
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}
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