[PATCH] D88591: [WebAssembly] Emulate v128.const efficiently

[Hubert Tong via Phabricator via llvm-commits]

hubert.reinterpretcast added a comment.

This patch appears to be the likely cause of big endian hosts failing with a timeout: http://lab.llvm.org:8011/builders/clang-s390x-linux/builds/35450

This is what shows on our AIX-hosted bot:

  buildbot-user 19006934  7538476 120 07:48:02      - 68:54 /buildbot/buildbot-user/buildbot-worker/worker/LLVM-Master-AIX-Release-powerpc64le-gnu-linux/build/bin/llc -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+simd128
  buildbot-user 30541264  7538476   0 07:48:02      -  0:00 /buildbot/buildbot-user/buildbot-worker/worker/LLVM-Master-AIX-Release-powerpc64le-gnu-linux/build/bin/FileCheck /buildbot/buildbot-user/buildbot-worker/worker/LLVM-Master-AIX-Release-powerpc64le-gnu-linux/llvm/llvm/test/CodeGen/WebAssembly/simd-build-vector.ll --check-prefixes=CHECK,SIMD-VM
  buildbot-user  7538476 17762386   0 07:48:01      -  0:00 /bin/bash /buildbot/buildbot-user/buildbot-worker/worker/LLVM-Master-AIX-Release-powerpc64le-gnu-linux/build/test/CodeGen/WebAssembly/Output/simd-build-vector.ll.script


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https://reviews.llvm.org/D88591