llvm-project

dd363d06 - [VPlan] Replace UnrollPart for VPScalarIVSteps with start index op (NFC) (#170906)

[VPlan] Replace UnrollPart for VPScalarIVSteps with start index op (NFC) (#170906) Replace the unroll part operand for VPScalarIVStepsRecipe with the start index. This simplifies https://github.com/llvm/llvm-project/pull/170053 and is also a first step to break down the recipe into its components. PR: https://github.com/llvm/llvm-project/pull/170906