Dan Gohman f6857223c9 [WebAssembly] Always print loop end labels ...

WebAssembly is currently using labels to end scopes, so for example a
loop scope looks like this:

BB0_0:
  loop BB0_1
  ...
BB0_1:

with BB0_0 being the label of the first block not in the loop. This
requires that the label be printed even when it's only reachable via
fallthrough. To arrange this, insert a no-op LOOP_END instruction in
such cases at the end of the loop.

llvm-svn: 253901

2015-11-23 19:12:37 +00:00

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