ping

The aim is to combine svadd_x and svsel intrinsics.
As we can see gcc has patterns to combine sel and some other instructions, while clang can't.
gcc : https://godbolt.org/z/G4aYefG51
clang : https://godbolt.org/z/G4aYefG51

ping

In D143499#4114977, @paulwalker-arm wrote:

@lizhijin: In case there's a misunderstanding I just wanted to say your patch has been accepted and is good to land. Sometimes patches are accepted with a few extra comments which you're trusted to consider before landing a patch (i.e. there's no need to wait for the patch to be accepted again). There's no real rule but typically I just wait a day after acceptance before landing a patch (with any suggested minor modifications) in order to give other reviewers a chance to comment.

Rebase

Update code format.

ping

This patch is superseded by D125016 and this one can be abandoned.

Hi, @david-arm , I added a patch to change the strategy for vectorizing freeze instrucion, and tried to use VPWidenRecipe for freeze instruction. Can you help to review this patch : https://reviews.llvm.org/D125016