tree 2ce0067b689d204bfc21ce4ff9912bf1d2d0f773
parent 5d602120c3a3c175f606d6ce599cfb60239d904c
author Abinav Puthan Purayil <abinav.puthanpurayil@amd.com> 1637924497 +0530
committer Abinav Puthan Purayil <abinav.puthanpurayil@amd.com> 1638265730 +0530

[GlobalISel] Add matchers for constant splat.

This change exposes isBuildVectorConstantSplat() to the llvm namespace
and uses it to implement the constant splat versions of
m_SpecificICst().

CombinerHelper::matchOrShiftToFunnelShift() can now work with vector
types and CombinerHelper::matchMulOBy2()'s match for a constant splat is
simplified.

Differential Revision: https://reviews.llvm.org/D114625