================
@@ -1183,9 +1228,21 @@ bool
SIInsertWaitcnts::generateWaitcntInstBefore(MachineInstr &MI,
// No need to wait before load from VMEM to LDS.
if (TII->mayWriteLDSThroughDMA(MI))
continue;
- unsigned RegNo = SQ_MAX_PGM_VGPRS + EXTRA_VGPR_LDS;
+
// VM_CNT is only relevant to vgpr or LDS.
- ScoreBrackets.determineWait(VM_CNT, RegNo, Wait);
+ unsigned RegNo = SQ_MAX_PGM_VGPRS + EXTRA_VGPR_LDS;
+ bool FoundAliasingStore = false;
+ if (Ptr && Memop->getAAInfo() && Memop->getAAInfo().Scope) {
----------------
rampitec wrote:
I have reserved just 8 pseudo registers to track it. I do not want to fill it
with unrelated stuff. I know that the only way AA will be able to handle this
very specific situation is if there is scope info, otherwise there is no reason
to waste a slot and compile time. If I do not enter this 'if' the pass will
just do conservatively correct thing and wait for this memory regardless of
aliasing or lack of it.
https://github.com/llvm/llvm-project/pull/74537
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
