VPlanRecipes.cpp - fix "'llvm::VPExpressionRecipe::computeCost': not all control paths return a value" MSVC warning. NFC.

RKSimon · RKSimon · commit 651c5208f859 · 2025-07-02T09:59:01.000+01:00
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -2656,6 +2656,7 @@ InstructionCost VPExpressionRecipe::computeCost(ElementCount VF,
             Instruction::ZExt,
         RedTy, SrcVecTy, Ctx.CostKind);
   }
+  llvm_unreachable("Unknown VPExpressionRecipe::ExpressionTypes enum");
 }
 
 bool VPExpressionRecipe::mayReadOrWriteMemory() const {

Original file line number	Diff line number	Diff line change
`@@ -2656,6 +2656,7 @@ InstructionCost VPExpressionRecipe::computeCost(ElementCount VF,`
`2656`	`2656`	`Instruction::ZExt,`
`2657`	`2657`	`RedTy, SrcVecTy, Ctx.CostKind);`
`2658`	`2658`	`}`
	`2659`	`+ llvm_unreachable("Unknown VPExpressionRecipe::ExpressionTypes enum");`
`2659`	`2660`	`}`
`2660`	`2661`
`2661`	`2662`	`bool VPExpressionRecipe::mayReadOrWriteMemory() const {`