[SLP][NFC]Improved isAltShuffle by comparing instructions instead of

opcodes, NFC. NFC part of D115955.
llvm · Jan 5, 2022 · dd83bef · dd83bef
1 parent a881215
commit dd83bef
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -435,7 +435,7 @@ struct InstructionsState {
   }
 
   /// Some of the instructions in the list have alternate opcodes.
-  bool isAltShuffle() const { return getOpcode() != getAltOpcode(); }
+  bool isAltShuffle() const { return AltOp != MainOp; }
 
   bool isOpcodeOrAlt(Instruction *I) const {
     unsigned CheckedOpcode = I->getOpcode();
@@ -2019,9 +2019,7 @@ class BoUpSLP {
     }
 
     /// Some of the instructions in the list have alternate opcodes.
-    bool isAltShuffle() const {
-      return getOpcode() != getAltOpcode();
-    }
+    bool isAltShuffle() const { return MainOp != AltOp; }
 
     bool isOpcodeOrAlt(Instruction *I) const {
       unsigned CheckedOpcode = I->getOpcode();