[VPlan, VP] 1/4 Introduce new recipes to support predicated vectorization

[ym1813382441]

Summary

This patch introduces new VPlan recipes VPCanonicalEVLRecipe, VPCanonicalIVIncrementEVLRecipe, VPPredicatedWidenRecipe, VPPredicatedWidenMemoryInstrctionRecipe, and AllTrueMask VPInstruction as a first step to enable predicated vectorization.
This patch changed on patch D126363.

co-authored-by Vineet Kumar (vntkmr) <[e-mail]>

[ym1813382441]

ping

[simoll]

Are you happy with me merging this back into D126363? Do you want to keep working on the VPlan-VP integration or what is your plan here?

[ym1813382441]

In D126625#3545254, @simoll wrote:

Are you happy with me merging this back into D126363? Do you want to keep working on the VPlan-VP integration or what is your plan here?

yeah! I am very happy to continue working on vplan VP integration, and improving LLVM's vectorization to enable automatic vectorization for RVV.

[ym1813382441]

In D126625#3545254, @simoll wrote:

Are you happy with me merging this back into D126363? Do you want to keep working on the VPlan-VP integration or what is your plan here?

And my English may not be very good. Please don't laught at me if you find something indecent of me :)

[simoll]

In D126625#3545280, @ym1813382441 wrote:

In D126625#3545254, @simoll wrote:

Are you happy with me merging this back into D126363? Do you want to keep working on the VPlan-VP integration or what is your plan here?

yeah! I am very happy to continue working on vplan VP integration, and improving LLVM's vectorization to enable automatic vectorization for RVV.

! In D126625#3545290, @ym1813382441 wrote:

! In D126625#3545254, @simoll wrote:

Are you happy with me merging this back into D126363? Do you want to keep working on the VPlan-VP integration or what is your plan here?

And my English may not be very good. Please don't laught at me if you find something indecent of me :)

All good :) We will find a way to work together on the patches. I will send you an e-mail to discuss this.