Ok to commit?

-- >8 --
I see overlong lines in the output when a test fails, for
example for a bug exposed for cris-elf and pru-elf in
gcc.dg/analyzer/allocation-size-multiline-3.c:

Running /x/gcc/testsuite/gcc.dg/analyzer/analyzer.exp ...
FAIL: gcc.dg/analyzer/allocation-size-multiline-3.c expected multiline pattern 
lines 16-25 not found: "\s*int32_t \*ptr = alloca \(99\);[^\n\r]*\n             
     \^~~~~~\n  'test_constant_99': events 1-2[^\n\r]*\n    \|[^\n\r]*\n    \|  
 int32_t \*ptr = alloca \(99\);[^\n\r]*\n    \|                  \^~~~~~\n    
\|                  \|[^\n\r]*\n    \|                  \(1\) allocated 99 
bytes here[^\n\r]*\n    \|                  \(2\) assigned to 'int32_t \*' 
\{aka 'int \*'\} here; 'sizeof \(int32_t \{aka int\}\)' is '4'[^\n\r]*\n    
\|[^\n\r]*\n"
FAIL: gcc.dg/analyzer/allocation-size-multiline-3.c expected multiline pattern 
lines 34-43 not found: "   int32_t \*ptr = alloca \(n \* 2\);[^\n\r]*\n         
         \^~~~~~\n  'test_symbolic': events 1-2[^\n\r]*\n    \|[^\n\r]*\n    \| 
  int32_t \*ptr = alloca \(n \* 2\);[^\n\r]*\n    \|                  \^~~~~~\n 
   \|                  \|[^\n\r]*\n    \|                  \(1\) allocated 'n 
\* 2' bytes here[^\n\r]*\n    \|                  \(2\) assigned to 'int32_t 
\*' \{aka 'int \*'\} here; 'sizeof \(int32_t \{aka int\}\)' is '4'[^\n\r]*\n    
\|[^\n\r]*\n"
FAIL: gcc.dg/analyzer/allocation-size-multiline-3.c (test for excess errors)

That multiline-regexp-quoted-on-a-single-line is redundant
when also outputting "lines 16-25" and "lines 34-43".  It's
also so noisy that it can be mistaken for a testsuite error.
If there's a need to inspect it, it can be seen at
verbose-level 4, i.e. persons interested in seeing it
without editing sources can just add "-v -v -v -v".

Let's "prune" the regexp from regular output, instead producing:
Running /x/gcc/testsuite/gcc.dg/analyzer/analyzer.exp ...
FAIL: gcc.dg/analyzer/allocation-size-multiline-3.c expected multiline pattern 
lines 16-25 not found
FAIL: gcc.dg/analyzer/allocation-size-multiline-3.c expected multiline pattern 
lines 34-43 not found
FAIL: gcc.dg/analyzer/allocation-size-multiline-3.c (test for excess errors)

        * lib/multiline.exp (handle-multiline-outputs): Don't include the
        quoted multiline regexp in the pass/fail output.
---
 gcc/testsuite/lib/multiline.exp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/lib/multiline.exp b/gcc/testsuite/lib/multiline.exp
index 84ba9216642e..5eccf2bbebc1 100644
--- a/gcc/testsuite/lib/multiline.exp
+++ b/gcc/testsuite/lib/multiline.exp
@@ -169,9 +169,9 @@ proc handle-multiline-outputs { text } {
        # Use "regsub" to attempt to prune the pattern from $text
        if {[regsub -line $rexp $text "" text]} {
            # The multiline pattern was pruned.
-           ${maybe_x}pass "$title was found: \"$escaped_regex\""
+           ${maybe_x}pass "$title was found"
        } else {
-           ${maybe_x}fail "$title not found: \"$escaped_regex\""
+           ${maybe_x}fail "$title not found"
        }
 
        set index [expr $index + 1]
-- 
2.30.2

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