Revert "[SLP][NFC]Check for equal opcode preliminary to meet weak strict order"

alexey-bataev · alexey-bataev · commit a7e10e660300 · 2023-12-18T12:35:52.000-08:00
This reverts commit 58a2c4e to fix the issue detected by https://lab.llvm.org/buildbot/#/builders/233/builds/5424.
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -15777,8 +15777,6 @@ static bool compareCmp(Value *V, Value *V2, TargetLibraryInfo &TLI,
           if (NodeI1 != NodeI2)
             return NodeI1->getDFSNumIn() < NodeI2->getDFSNumIn();
         }
-        if (I1->getOpcode() == I2->getOpcode())
-          continue;
         InstructionsState S = getSameOpcode({I1, I2}, TLI);
         if (S.getOpcode() && (IsCompatibility || !S.isAltShuffle()))
           continue;

Original file line number	Diff line number	Diff line change
`@@ -15777,8 +15777,6 @@ static bool compareCmp(Value V, Value V2, TargetLibraryInfo &TLI,`
`15777`	`15777`	`if (NodeI1 != NodeI2)`
`15778`	`15778`	`return NodeI1->getDFSNumIn() < NodeI2->getDFSNumIn();`
`15779`	`15779`	`}`
`15780`		`- if (I1->getOpcode() == I2->getOpcode())`
`15781`		`- continue;`
`15782`	`15780`	`InstructionsState S = getSameOpcode({I1, I2}, TLI);`
`15783`	`15781`	`if (S.getOpcode() && (IsCompatibility \|\| !S.isAltShuffle()))`
`15784`	`15782`	`continue;`