bool swift::isPureCall(FullApplySite AI, SideEffectAnalysis *SEA) {
// If a call has only constant arguments and the call is pure, i.e. has
// no side effects, then we should always inline it.
SideEffectAnalysis::FunctionEffects ApplyEffects;
SEA->getEffects(ApplyEffects, AI);
auto GE = ApplyEffects.getGlobalEffects();
if (GE.mayRead() || GE.mayWrite() || GE.mayRetain() || GE.mayRelease())
return false;
// Check if all parameters are constant.
auto Args = AI.getArgumentsWithoutIndirectResults();
for (auto Arg : Args) {
if (!isConstantValue(Arg)) {
return false;
}
}
return true;
}
bool swift::isPureCall(FullApplySite AI, SideEffectAnalysis *SEA) {
// If a call has only constant arguments and the call is pure, i.e. has
// no side effects, then we should always inline it.
// This includes arguments which are objects initialized with constant values.
FunctionSideEffects ApplyEffects;
SEA->getCalleeEffects(ApplyEffects, AI);
auto GE = ApplyEffects.getGlobalEffects();
if (GE.mayRead() || GE.mayWrite() || GE.mayRetain() || GE.mayRelease())
return false;
// Check if all parameters are constant.
auto Args = AI.getArgumentOperands().slice(AI.getNumIndirectSILResults());
for (Operand &Arg : Args) {
if (!isConstantArg(&Arg)) {
return false;
}
}
return true;
}