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c/1824: gcc accepts computed goto's + -fprofile-arcs, gcov barfs



>Number:         1824
>Category:       c
>Synopsis:       gcc accepts computed goto's + -fprofile-arcs, gcov barfs
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jan 31 14:06:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     B. Lucier
>Release:        2.97 20010126
>Organization:
>Environment:
alphaev6-unknown-linux-gnu
>Description:
With this command line:

gcc -W -Wall -Wno-unused -O0 -mieee -fno-math-errno -D___SINGLE_HOST -fprofile-arcs -ftest-coverage -o reverse reverse.c reverse_.c -lgambc -lm -ldl

older versions of gcc would give the error:

reverse.c: In function `___H__20_reverse':
reverse.c:7785: -fprofile-arcs does not support computed gotos

gcc 2.97 does not issue this error, but then gcov barfs
on the output:

gcov reverse.c
Abort

So what gives?  Has this error been removed by mistake?
Does gcov now support computed gotos, and is this a bug?

Brad Lucier
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:

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