c/9266: decrement pointer side effects are not working properly

[randy at fieldshome dot com]

>Number:         9266
>Category:       c
>Synopsis:       decrement pointer side effects are not working properly
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 10 13:16:01 PST 2003
>Closed-Date:
>Last-Modified:
>Originator:     Randy Fields
>Release:        gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)
>Organization:
>Environment:
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --host=i386-redhat-linux --with-system-zlib
--enable-__cxa_atexit
Thread model: posix
gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)
>Description:
The location of the the left hand side of the equation changes in the function call popST().  The compiler currently saves the incorrect location to write the return code to.

// offending code:
ST[STPTR] = popST();
>How-To-Repeat:
I compiled this code under 2.96 and 3.2 and compared the assembly.  The assembly code in 2.96 looks correct.
>Fix:

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