Viewing file:  20100610.c (2.71 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-fgnu-tm -O3" } */
/* The function calculateCircumCircle() should get inlined into the TM
clone for TMelement_alloc(), so we don't need to generate a TM
clone for calculateCircumCircle(). We also don't need to put its
entry into the clone table since it's static. */
/* { dg-final { scan-assembler-not "ZGTt21calculateCircumCircle" } } */
extern double sqrt(double) __attribute__((transaction_pure));
extern void *xmalloc(int) __attribute__((transaction_safe));
typedef struct coordinate {
double x;
double y;
} coordinate_t;
typedef struct element {
coordinate_t coordinates[3];
long numCoordinate;
coordinate_t circumCenter;
double circumRadius;
} element_t;
__attribute__((transaction_safe))
double
coordinate_distance (coordinate_t* coordinatePtr, coordinate_t* aPtr)
{
return sqrt( coordinatePtr->x );
}
__attribute__((transaction_safe))
static void
calculateCircumCircle (element_t* elementPtr)
{
long numCoordinate = elementPtr->numCoordinate;
coordinate_t* coordinates = elementPtr->coordinates;
coordinate_t* circumCenterPtr = &elementPtr->circumCenter;
((void) (0));
if (numCoordinate == 2) {
circumCenterPtr->x = (coordinates[0].x + coordinates[1].x) / 2.0;
circumCenterPtr->y = (coordinates[0].y + coordinates[1].y) / 2.0;
}
else {
double ax = coordinates[0].x;
double ay = coordinates[0].y;
double bx = coordinates[1].x;
double by = coordinates[1].y;
double cx = coordinates[2].x;
double cy = coordinates[2].y;
double bxDelta = bx - ax;
double byDelta = by - ay;
double cxDelta = cx - ax;
double cyDelta = cy - ay;
double bDistance2 = (bxDelta * bxDelta) + (byDelta * byDelta);
double cDistance2 = (cxDelta * cxDelta) + (cyDelta * cyDelta);
double xNumerator = (byDelta * cDistance2) - (cyDelta * bDistance2);
double yNumerator = (bxDelta * cDistance2) - (cxDelta * bDistance2);
double denominator = 2 * ((bxDelta * cyDelta) - (cxDelta * byDelta));
double rx = ax - (xNumerator / denominator);
double ry = ay + (yNumerator / denominator);
circumCenterPtr->x = rx;
circumCenterPtr->y = ry;
}
elementPtr->circumRadius = coordinate_distance(circumCenterPtr,
&coordinates[0]);
}
element_t*
element_alloc (coordinate_t* coordinates, long numCoordinate)
{
element_t* elementPtr;
elementPtr = (element_t*)xmalloc(sizeof(element_t));
if (elementPtr) {
calculateCircumCircle(elementPtr);
}
return elementPtr;
}
__attribute__((transaction_safe))
element_t*
TMelement_alloc (coordinate_t* coordinates, long numCoordinate)
{
element_t* elementPtr;
elementPtr = (element_t*)xmalloc(sizeof(element_t));
if (elementPtr) {
calculateCircumCircle(elementPtr);
}
return elementPtr;
}
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