[llvm] [VPlan] Remove underlying instruction check when overwriting recipe c… (PR #106340)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Elvis Wang (ElvisWang123)

<details>
<summary>Changes</summary>

…ost.

This patch remove the underlying instruction check when overwriting the recipe cost with option `force-target-instruction-cost`.

---
Full diff: https://github.com/llvm/llvm-project/pull/106340.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index 53b28a692059f6..128ac6ded1e4ad 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -282,7 +282,7 @@ InstructionCost VPRecipeBase::cost(ElementCount VF, VPCostContext &Ctx) {
     return 0;
 
   InstructionCost RecipeCost = computeCost(VF, Ctx);
-  if (UI && ForceTargetInstructionCost.getNumOccurrences() > 0 &&
+  if (ForceTargetInstructionCost.getNumOccurrences() > 0 &&
       RecipeCost.isValid())
     RecipeCost = InstructionCost(ForceTargetInstructionCost);
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/106340