testsuite/1680: i386-sse.exp trouble with '{...}'

[mec dot gnu at mindspring dot com]

>Number:         1680
>Category:       testsuite
>Synopsis:       i386-sse.exp trouble with '{...}'
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unasigned
>State:          open
>Class:          test-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 17 17:08:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     mec.gnu@mindspring.com
>Release:        gdb HEAD 2004-06-13 05:30:11 UTC
>Organization:
>Environment:
native i686-pc-linux-gnu
red hat 8.0
intel celeron, 800 MHz, SSE, cpuid level 2
gcc 3.3.3
tcl 8.4.6
expect 5.41
dejagnu 1.4.4
>Description:
gdb.arch/i386-sse.exp is barfing out on the "{...}" lines with the stock versions of tcl+expect+dejagnu.

Breakpoint 2, main (argc=1, argv=0xbffff744) at /berman/fsf/_today_/source/gdb/H
EAD/src/gdb/testsuite/gdb.arch/i386-sse.c:71^M
71            puts ("Hi!"); /* first breakpoint here */^M
(gdb) PASS: gdb.arch/i386-sse.exp: continue to breakpoint: continue to first bre
akpoint in main
ERROR: Process no longer exists
UNRESOLVED: gdb.arch/i386-sse.exp: check contents of %xmm0
ERROR: Process no longer exists
UNRESOLVED: gdb.arch/i386-sse.exp: check contents of %xmm1
ERROR: Process no longer exists
UNRESOLVED: gdb.arch/i386-sse.exp: check contents of %xmm2
ERROR: Process no longer exists


>How-To-Repeat:

>Fix:
I tried various forms of quoting the "{...}" lines in gdb_test.  This code works:

  gdb_test "print \$xmm$r_v4_float" \
    ".. = \\{$r, $r.25, $r.5, $r.75\\}.*" \
    "check contents of %xmm$r"

Given that there are different versions of tcl+expect+dejagnu in the field, and that they are so sensitive to "{" and "\{" and "\\{", it might be a lot simpler just to use "= .$r, $r.25, $r.5, $r.75..*" and not fight with the braces and backslashes.
  
>Release-Note:
>Audit-Trail:
>Unformatted: