[cfe-dev] [PATCH] Round 3: add unconditional support for block signatures

[Blaine Garst]

Thanks to Fariborz suggestion that I write a unit test I discovered that clang was not emitting the type signature information for global blocks.

While there I renamed his "types" field internally to "signature" to reflect its more natural name which I will be using in the runtime.

More significantly, I realized that we can recover the unused-by-the-runtime (1<<29) bit now that unconditionally mark (1<<30).  This will enable the compiler to (re)use that bit sometime in the future.

Test "blocksignature.c" attached.



Blaine
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