/**
* Estimate the expected cost of the inlining action (inclues both the inline body and the
* guard/off-branch code).
*
* @param inlinedBodyEstimate size estimate for inlined body
* @param needsGuard is it going to be a guarded inline?
* @param preEx can preEx inlining be used to avoid the guard?
* @param opts controlling options object
* @return the estimated cost of the inlining action
*/
private int inliningActionCost(
int inlinedBodyEstimate, boolean needsGuard, boolean preEx, OPT_Options opts) {
int guardCost = 0;
if (needsGuard & !preEx) {
guardCost += VM_NormalMethod.CALL_COST;
if (opts.guardWithMethodTest()) {
guardCost += 3 * VM_NormalMethod.SIMPLE_OPERATION_COST;
} else if (opts.guardWithCodePatch()) {
guardCost += VM_NormalMethod.SIMPLE_OPERATION_COST;
} else { // opts.guardWithClassTest()
guardCost += 2 * VM_NormalMethod.SIMPLE_OPERATION_COST;
}
}
return guardCost + inlinedBodyEstimate;
}
