[cfe-dev] Unable to get Clang to obey target alignment requirements

[Stephen McGruer]

I'm currently struggling with getting Clang and LLVM to use 4-byte
alignment for my target backend (ARCompact). (My target uses 4-byte
alignment for all targets whose size is >= 4.) With regards to Clang, I
thought I had set the correct variables and the DescriptionString in
Targets.cpp, but compiling a simple test case to LLVM IR shows that doubles
are still aligned to 8-bytes!

A quick overview of the Targets.cpp code, the test file, and the outcome
can be seen at http://pastebin.com/45y2N4dV

Does anyone know what I might be doing wrong?

Thanks,
Stephen
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