[PATCH] D40279: [libcxxabi][demangler] Add demangling for __attribute__((abi_tag))

[Erik Pilkington via Phabricator via cfe-commits]

erik.pilkington created this revision.

This patch adds demangling support for `__attribute__((abi_tag))`. I.e, the following function: `__attribute__((abi_tag("foo"))) void f() {}` mangles to `_Z1fB3foov`, and now demangles to `f[abi:foo]()` (this syntax is the same as GCC's demangler). This patch parses the attribute everywhere in the grammer ItaniumMangle emits it.

While looking through ItaniumMangle, I noticed a couple of features that it supports that this file doesn't, so I added them to a list of them to the top. I'm going to submit some more patches for those as well.

https://bugs.llvm.org/show_bug.cgi?id=35310

Thanks for taking a look!


https://reviews.llvm.org/D40279

Files:
  src/cxa_demangle.cpp
  test/test_demangle.pass.cpp

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