From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <4ff9843e5f6fd136c01c5d3e6711c61a@swtch.com>
To: 9fans@cse.psu.edu
From: "Russ Cox" <rsc@swtch.com>
Date: Sat, 25 Mar 2006 08:56:38 -0500
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Subject: [9fans] new compilers
Topicbox-Message-UUID: 2057872c-ead1-11e9-9d60-3106f5b1d025

Compiler changes yesterday:

  - compiler suite is 3,000 lines smaller
  - incorrect "set and not used" warnings gone
  - incorrect "no return at end of function" warnings gone
  - missing "no return at end of function" warnings added
  - eliminate more dead code in object files,
     especially in 7c kc qc vc.

I did a lot of regression testing, so I'm fairly confident
in the new code.  If you do see new odd behavior
from your programs, try compiling with
/n/sourcesdump/2006/0325/plan9/386/bin/8c.
If that makes a difference, please let me know.

Also, if you get an incorrect warning from the compiler,
or you don't get a warning that you should (like not being
warned about a non-void function missing a return statement),
please mail me a test program and I will fix the compiler.

Thanks.
Russ