[PATCH] D58953: [WebAssembly] Disable MachineBlockPlacement pass

[Heejin Ahn via Phabricator via llvm-commits]

aheejin created this revision.
aheejin added reviewers: kripken, dschuff, sunfish.
Herald added subscribers: llvm-commits, jgravelle-google, sbc100.
Herald added a project: LLVM.

This pass hurts code size for wasm and sometimes generates irreducible
control flow.
Context: https://github.com/emscripten-core/emscripten/pull/8233


Repository:
  rL LLVM

https://reviews.llvm.org/D58953

Files:
  lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
  test/CodeGen/WebAssembly/cfg-stackify.ll
  test/CodeGen/WebAssembly/conv-trap.ll
  test/CodeGen/WebAssembly/implicit-def.ll
  test/CodeGen/WebAssembly/lower-global-dtors.ll
  test/CodeGen/WebAssembly/phi.ll
  test/MC/WebAssembly/global-ctor-dtor.ll

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