[llvm] 5a056f9 - [SystemZ] Avoid repeated hash lookups (NFC) (#126005)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-02-06T16:22:31-08:00
New Revision: 5a056f91be33df87485a6d1608128305f834e0eb

URL: https://github.com/llvm/llvm-project/commit/5a056f91be33df87485a6d1608128305f834e0eb
DIFF: https://github.com/llvm/llvm-project/commit/5a056f91be33df87485a6d1608128305f834e0eb.diff

LOG: [SystemZ] Avoid repeated hash lookups (NFC) (#126005)

Co-authored-by: Nikita Popov <github at npopov.com>

Added: 
    

Modified: 
    llvm/lib/Target/SystemZ/SystemZISelLowering.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 1fb31c26e20d3c1..9ffd4190b34bbfc 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -6173,8 +6173,8 @@ SystemZTargetLowering::buildVector(SelectionDAG &DAG, const SDLoc &DL, EVT VT,
     for (unsigned I = 0; I < NumElements; ++I)
       if (isVectorElementLoad(Elems[I])) {
         SDNode *Ld = Elems[I].getNode();
-        UseCounts[Ld]++;
-        if (LoadMaxUses == nullptr || UseCounts[LoadMaxUses] < UseCounts[Ld])
+        unsigned Count = ++UseCounts[Ld];
+        if (LoadMaxUses == nullptr || UseCounts[LoadMaxUses] < Count)
           LoadMaxUses = Ld;
       }
     if (LoadMaxUses != nullptr) {