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[AMDGPU] Avoid repeated hash lookups (NFC) (#126001)

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Kazu Hirata 2025-02-06 10:34:49 -08:00 committed by GitHub
parent 5c3d1463ed
commit 975bba6f4b
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GPG Key ID: B5690EEEBB952194
1 changed files with 8 additions and 6 deletions
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14
llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
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@ -2174,12 +2174,13 @@ bool SILoadStoreOptimizer::promoteConstantOffsetToImm(
// Step1: Find the base-registers and a 64bit constant offset.
MachineOperand &Base = *TII->getNamedOperand(MI, AMDGPU::OpName::vaddr);
auto [It, Inserted] = Visited.try_emplace(&MI);
MemAddress MAddr;
if (!Visited.contains(&MI)) {
if (Inserted) {
processBaseWithConstOffset(Base, MAddr);
Visited[&MI] = MAddr;
It->second = MAddr;
} else
MAddr = Visited[&MI];
MAddr = It->second;
if (MAddr.Offset == 0) {
LLVM_DEBUG(dbgs() << " Failed to extract constant-offset or there are no"
@ -2239,11 +2240,12 @@ bool SILoadStoreOptimizer::promoteConstantOffsetToImm(
const MachineOperand &BaseNext =
*TII->getNamedOperand(MINext, AMDGPU::OpName::vaddr);
MemAddress MAddrNext;
if (!Visited.contains(&MINext)) {
auto [It, Inserted] = Visited.try_emplace(&MINext);
if (Inserted) {
processBaseWithConstOffset(BaseNext, MAddrNext);
Visited[&MINext] = MAddrNext;
It->second = MAddrNext;
} else
MAddrNext = Visited[&MINext];
MAddrNext = It->second;
if (MAddrNext.Base.LoReg != MAddr.Base.LoReg ||
MAddrNext.Base.HiReg != MAddr.Base.HiReg ||