[cfe-dev] Viewing ASTs

James Molloy James.Molloy at arm.com
Fri Feb 10 15:29:28 PST 2012

Hi Kavya,

-ast-view is only available as a cc1 command. You're passing it to the driver.

Invoke clang with -### to find the command the driver is forming to compile. Then copy-paste that command, adding -ast-view (or --help-hidden to see all the cc1 options).


From: cfe-dev-bounces at cs.uiuc.edu [cfe-dev-bounces at cs.uiuc.edu] On Behalf Of sskavya [kavyass at gmail.com]
Sent: 10 February 2012 19:55
To: cfe-dev at cs.uiuc.edu
Subject: [cfe-dev] Viewing ASTs


I am trying to view the AST obtained after parsing, in a graphical
Certain web pages spoke about a command line option '-ast-view' that helps
in viewing
these through graphviz. However when I use the -ast-view option, the
compiler throws a warning saying

clang: warning: argument unused during compilation: '-ast-view'

Is there anything that I might be missing out? I could not find any notes on
this in the clang manuals.


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