unsigned NRCycle = getNextResourceCycle(PI->ProcResourceIdx, PI->Cycles);
if (NRCycle > CurrCycle) {
#ifndef NDEBUG
- MaxObservedStall = std::max(PI->Cycles, MaxObservedStall);
+ MaxObservedStall = std::max(NRCycle - CurrCycle, MaxObservedStall);
#endif
DEBUG(dbgs() << " SU(" << SU->NodeNum << ") "
<< SchedModel->getResourceName(PI->ProcResourceIdx)
PE = SchedModel->getWriteProcResEnd(SC); PI != PE; ++PI) {
unsigned PIdx = PI->ProcResourceIdx;
if (SchedModel->getProcResource(PIdx)->BufferSize == 0) {
- if (isTop()) {
- ReservedCycles[PIdx] =
- std::max(getNextResourceCycle(PIdx, 0), NextCycle + PI->Cycles);
- }
- else
- ReservedCycles[PIdx] = NextCycle;
+ ReservedCycles[PIdx] = isTop() ? NextCycle + PI->Cycles : NextCycle;
+#ifndef NDEBUG
+ MaxObservedStall = std::max(PI->Cycles, MaxObservedStall);
+#endif
}
}
}
}
declare void @llvm.trap()
-
-; Regression test for PR20057: "permanent hazard"'
-; Resource contention on LDST.
-; CHECK: ********** MI Scheduling **********
-; CHECK: testLdStConflict
-; CHECK: *** Final schedule for BB#1 ***
-; CHECK: LD4Fourv2d
-; CHECK: STRQui
-; CHECK: ********** INTERVALS **********
-define void @testLdStConflict() {
-entry:
- br label %loop
-
-loop:
- %0 = call { <2 x i64>, <2 x i64>, <2 x i64>, <2 x i64> } @llvm.aarch64.neon.ld4.v2i64.p0i8(i8* null)
- %ptr = bitcast i8* undef to <2 x i64>*
- store <2 x i64> zeroinitializer, <2 x i64>* %ptr, align 4
- %ptr1 = bitcast i8* undef to <2 x i64>*
- store <2 x i64> zeroinitializer, <2 x i64>* %ptr1, align 4
- %ptr2 = bitcast i8* undef to <2 x i64>*
- store <2 x i64> zeroinitializer, <2 x i64>* %ptr2, align 4
- %ptr3 = bitcast i8* undef to <2 x i64>*
- store <2 x i64> zeroinitializer, <2 x i64>* %ptr3, align 4
- %ptr4 = bitcast i8* undef to <2 x i64>*
- store <2 x i64> zeroinitializer, <2 x i64>* %ptr4, align 4
- br label %loop
-}
-
-declare { <2 x i64>, <2 x i64>, <2 x i64>, <2 x i64> } @llvm.aarch64.neon.ld4.v2i64.p0i8(i8*)