[llvm] [VPlan] Implement interleaving as VPlan-to-VPlan transform. (PR #95842)
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Thu Sep 19 13:03:58 PDT 2024
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@@ -1948,6 +1968,12 @@ class VPWidenIntOrFpInductionRecipe : public VPHeaderPHIRecipe {
VPValue *getVFValue() { return getOperand(2); }
const VPValue *getVFValue() const { return getOperand(2); }
+ VPValue *getSplatVFValue() {
+ // If the recipe has been unrolled (4 operands), return the VPValue for the
+ // induction increment.
+ return getNumOperands() == 5 ? getOperand(3) : nullptr;
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ayalz wrote:
```suggestion
return getNumOperands() >= 4 ? getOperand(3) : nullptr;
```
suffice to ensure there's a 4th operand?
https://github.com/llvm/llvm-project/pull/95842
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