[AMDGPU] Avoid repeated hash lookups (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-backend-amdgpu

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/132583.diff

1 Files Affected:

• (modified) llvm/lib/Target/AMDGPU/AMDGPUSetWavePriority.cpp (+3-2)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSetWavePriority.cpp b/llvm/lib/Target/AMDGPU/AMDGPUSetWavePriority.cpp
index d760cd3115eaa..c6c8211618620 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUSetWavePriority.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUSetWavePriority.cpp
@@ -146,9 +146,10 @@ bool AMDGPUSetWavePriority::runOnMachineFunction(MachineFunction &MF) {
     bool SuccsMayReachVMEMLoad = false;
     unsigned NumFollowingVALUInsts = 0;
     for (const MachineBasicBlock *Succ : MBB->successors()) {
-      SuccsMayReachVMEMLoad |= MBBInfos[Succ].MayReachVMEMLoad;
+      MBBInfo &SuccInfo = MBBInfos[Succ];
+      SuccsMayReachVMEMLoad |= SuccInfo.MayReachVMEMLoad;
       NumFollowingVALUInsts =
-          std::max(NumFollowingVALUInsts, MBBInfos[Succ].NumVALUInstsAtStart);
+          std::max(NumFollowingVALUInsts, SuccInfo.NumVALUInstsAtStart);
     }
     MBBInfo &Info = MBBInfos[MBB];
     if (AtStart)