[all-commits] [llvm/llvm-project] 8a98f2: [RISCV] Truncate constants to EltSize when combine...

[Wang Pengcheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8a98f24ec51ea12a50f1e63dd030482e387534a1
      https://github.com/llvm/llvm-project/commit/8a98f24ec51ea12a50f1e63dd030482e387534a1
  Author: wangpc <wangpengcheng.pp at bytedance.com>
  Date:   2023-08-14 (Mon, 14 Aug 2023)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    A llvm/test/CodeGen/RISCV/rvv/pr64588.ll

  Log Message:
  -----------
  [RISCV] Truncate constants to EltSize when combine store of BUILD_VECTOR

The constants can be with larger bit width, so we need to truncate
them to EltSize or we will exceed the width of fixed-length vector.

Fixes #64588

Reviewed By: luke, craig.topper, bjope, michaelmaitland

Differential Revision: https://reviews.llvm.org/D157603