[llvm-commits] Patch to allow llvm.gcroot to work with non-pointer allocas.

[Duncan Sands]

Hi Talin,

> This patch modifies Verifier.cpp to allow the first argument to llvm.gcroot to
> be a "non-pointer" alloca. This allows you to have an alloca of, say, struct
> type which may contain pointers that need to be traced. Note that the first
> argument is still required to be an alloca, but is no longer required to be an
> alloca of a pointer.

is this really needed?  In this situation, can't you just declare two allocas:
your struct alloca, and a pointer alloca that contains the address of the struct
alloca.  You then pass the pointer alloca as the gc root.

Ciao,

Duncan.