[all-commits] [llvm/llvm-project] fb6602: [WebAssembly] Explicitly add {z, s}ext so extends a...

[Luke Lau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fb6602616caa6d917543cdf0a429c9e2063a4a78
      https://github.com/llvm/llvm-project/commit/fb6602616caa6d917543cdf0a429c9e2063a4a78
  Author: Luke Lau <luke at igalia.com>
  Date:   2023-01-06 (Fri, 06 Jan 2023)

  Changed paths:
    M llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
    M llvm/test/CodeGen/WebAssembly/simd-extending-convert.ll

  Log Message:
  -----------
  [WebAssembly] Explicitly add {z,s}ext so extends are selected

During DAG legalization, {u,s}itofp instructions on v2i8, v2i16, v4i8
and v4i16 types ended up being legalized into scalar instructions, when
they could just be extended to v2i32/v4i32 instead.

Fixes https://github.com/llvm/llvm-project/issues/57182

Differential Revision: https://reviews.llvm.org/D140916