[llvm] 7fb8285 - [PowerPC] Avoid repeated hash lookups (NFC) (#125634)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-02-04T09:09:45-08:00
New Revision: 7fb8285976a2928021b384f79c3598f84e28de7a

URL: https://github.com/llvm/llvm-project/commit/7fb8285976a2928021b384f79c3598f84e28de7a
DIFF: https://github.com/llvm/llvm-project/commit/7fb8285976a2928021b384f79c3598f84e28de7a.diff

LOG: [PowerPC] Avoid repeated hash lookups (NFC) (#125634)

Added: 
    

Modified: 
    llvm/lib/Target/PowerPC/PPCRegisterInfo.h

Removed: 
    


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diff  --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.h b/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
index 36b8a24ba502db..274c7cb68ae0af 100644
--- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
+++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
@@ -65,9 +65,10 @@ class PPCRegisterInfo : public PPCGenRegisterInfo {
   /// for a given imm form load/store opcode \p ImmFormOpcode.
   /// FIXME: move this to PPCInstrInfo class.
   unsigned getMappedIdxOpcForImmOpc(unsigned ImmOpcode) const {
-    if (!ImmToIdxMap.count(ImmOpcode))
+    auto It = ImmToIdxMap.find(ImmOpcode);
+    if (It == ImmToIdxMap.end())
       return PPC::INSTRUCTION_LIST_END;
-    return ImmToIdxMap.find(ImmOpcode)->second;
+    return It->second;
   }
 
   /// getPointerRegClass - Return the register class to use to hold pointers.