[PATCH] D23635: [WebAssembly] Handle debug information and virtual registers without crashing (reland r278967)

[Dominic Chen via llvm-commits]

ddcc created this revision.
ddcc added reviewers: jfb, aprantl, dschuff, echristo.
ddcc added subscribers: mehdi_amini, yurydelendik, dexonsmith, MatzeB, jfb, dschuff, llvm-commits.

Currently, enabling debug information when compiling for WebAssembly crashes the backend. This commit fixes these by skipping debug values in backend passes.

https://reviews.llvm.org/D23635

Files:
  lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
  lib/Target/WebAssembly/WebAssemblyReplacePhysRegs.cpp
  lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
  test/DebugInfo/WebAssembly/dbg-declare.ll
  test/DebugInfo/WebAssembly/lit.local.cfg

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