HELP: finding the patch for a regression test case

[Dave Korn]

> -----Original Message-----
> From: gcc-owner On Behalf Of perugupa
> Sent: 10 June 2004 16:16

>   i am testing the regression test suite of gcc 3.3.3 on gcc 
> 3.2.3 using
>   the Dejagnu.I got the log information about the fails and passes.now
> 
>  how can i find the patch for those regression test cases? or...

  Grepping for the PR number in the ChangeLog files generally gets you most
of the way there.

>  how will i know why that test case failed i mean which part of source
>  code has caused the test test case failure?

  You really have to analyze the compiled testcase code, see what's actually
wrong with it, infer what the compiler should have output, and deduce from
that which area might be responsible.  If that doesn't get you close enough,
you often have to take debugging dumps of the RTL and follow the code in
question all the way through the various passes to see where it goes wrong.

>  the bugzilla doesn't have any information regarding the test 
> case name.is
>  there any other way...

  As I said, grep the PR in the changelogs, because the testcase is usually
added by the same patch that fixes the PR.

    cheers, 
      DaveK
-- 
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