[cfe-dev] clang as an x64 assembler

[Mike Benfield via cfe-dev]

I'm interested in using clang as an x64 assembler, partly because it
together with lldb seems to be the only way to debug assembly on a Mac. I
wondered if someone could answer a few questions.

I can't find any documentation about clang and assembly. Through
experimentation, I have discovered that this works:

$ clang -g -c -x assembler hello.s
$ clang hello.o -o hello
$ ./hello
Hello, world!

Are these commands (and other relevant command line options) documented
somewhere? Is the supported assembly syntax documented somewhere (it seems
to support GAS syntax; is it reasonable to use the GAS manual as a
reference?)?

Is this recommended? That is, is the integrated assembler intended to be
used to write assembly code for a production system in this way, and is it
reasonable to rely on it continuing to work in the future?

Thanks.

Mike
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