[PATCH] D15252: [WebAssembly] Fix scheduling dependencies in register-stackified code

[Dan Gohman via llvm-commits]

sunfish created this revision.
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Add physical register defs to instructions used from stackified instructions to prevent them from being scheduled into the middle of a stack sequence. This is a conservative measure which may be loosened in the future.

Repository:
  rL LLVM

http://reviews.llvm.org/D15252

Files:
  lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
  test/CodeGen/WebAssembly/load-store-i1.ll
  test/CodeGen/WebAssembly/reg-stackify.ll

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