================
@@ -704,8 +704,29 @@ static bool intrinsicHasPackedVectorBenefit(Intrinsic::ID
ID) {
InstructionCost
GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
TTI::TargetCostKind CostKind) const {
- if (ICA.getID() == Intrinsic::fabs)
+ switch (ICA.getID()) {
+ case Intrinsic::fabs:
+ // Free source modifier in the common case.
+ return 0;
+ case Intrinsic::amdgcn_workitem_id_x:
+ case Intrinsic::amdgcn_workitem_id_y:
+ case Intrinsic::amdgcn_workitem_id_z:
+ // TODO: If hasPackedTID, or if the calling context is not an entry point
----------------
rampitec wrote:
Maybe report 1 for packed tid?
https://github.com/llvm/llvm-project/pull/141948
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