The output from multiline.exp doesn't scale well when reviewing
and comparing .sum files.
Lines in e.g. gcc.sum from a dg-{begin|end}-multiline-output pair are
currently of the form:
PASS: expected multiline pattern 0 was found: "\s*myvar = myvar\.x;.*\n
~\^~\n"
as compared to e.g. this result line for a dg-warning:
PASS: gcc.dg/plugin/diagnostic-test-show-locus-bw.c
-fplugin=./diagnostic_plugin_test_show_locus.so (test for warnings, line 198)
In particular the line doesn't identify the filename/options of the test,
which means in a .sum file with a FAIL of one of these we can't easily
locate the testcase of interest.
The following patch updates multiline.exp to use the global
$testname_with_flags
as a prefix in such results.
I also dropped the printing of the index in favor of printing the line
numbers enclosed within dg-{begin|end}-multiline-output.
After the patch, we get result lines like this:
PASS: gcc.dg/plugin/diagnostic-test-show-locus-bw.c
-fplugin=./diagnostic_plugin_test_show_locus.so expected multiline pattern
lines 17-18 was found: "\s*myvar = myvar\.x;.*\n ~\^~\n"
(note the presence of the source file and options and the "lines 17-18")
Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu;
I compared the results against a control build (of r231445), and
the results were unchanged, other than the expected changes from
the above, leading to
- 92 PASS results changing name within g++.sum
- 7 PASS results changing name within each of obj-c++.sum
and objc.sum, and
- 125 PASS results changing name within gcc.sum.
OK for trunk for gcc 6?
gcc/testsuite/ChangeLog:
* lib/multiline.exp (_multiline_expected_outputs): Update comment.
(dg-end-multiline-output): Capture line numbers within
_multiline_expected_outputs.
(handle-multiline-outputs): Access global $testname_with_flags
and add it as a prefix to pass/fail results. Extract line numbers
from $_multiline_expected_outputs and print them within pass/fail
results, replacing the printing of $index. Consolidate the
string prefix shared between pass/fail into a new local: $title.
---
gcc/testsuite/lib/multiline.exp | 26 +++---
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git a/gcc/testsuite/lib/multiline.exp b/gcc/testsuite/lib/multiline.exp
index c3d0506..5367437 100644
--- a/gcc/testsuite/lib/multiline.exp
+++ b/gcc/testsuite/lib/multiline.exp
@@ -54,7 +54,9 @@
# The line number of the last dg-begin-multiline-output directive.
set _multiline_last_beginning_line -1
-# A list of lists of strings.
+# A list of
+# first-line-number, last-line-number, lines
+# where each "lines" is a list of strings.
set _multiline_expected_outputs []
@@ -88,12 +90,15 @@ proc dg-end-multiline-output { args } {
# Load it and split it into lines
set lines [_get_lines $prog $_multiline_last_beginning_line $line]
-set _multiline_last_beginning_line -1
verbose "lines: $lines" 3
+# Create an entry of the form: first-line, last-line, lines
+set entry [list $_multiline_last_beginning_line $line $lines]
global _multiline_expected_outputs
-lappend _multiline_expected_outputs $lines
+lappend _multiline_expected_outputs $entry
verbose "within dg-end-multiline-output: _multiline_expected_outputs:
$_multiline_expected_outputs" 3
+
+set _multiline_last_beginning_line -1
}
# Hook to be called by prune.exp's prune_gcc_output to
@@ -107,9 +112,14 @@ proc dg-end-multiline-output { args } {
proc handle-multiline-outputs { text } {
global _multiline_expected_outputs
+global testname_with_flags
set index 0
-foreach multiline $_multiline_expected_outputs {
- verbose " multiline: $multiline" 4
+foreach entry $_multiline_expected_outputs {
+ verbose " entry: $entry" 3
+ set start_line [lindex $entry 0]
+ set end_line [lindex $entry 1]
+ set multiline [lindex $entry 2]
+ verbose " multiline: $multiline" 3
set rexp [_build_multiline_regex $multiline $index]
verbose "rexp: ${rexp}" 4
# Escape newlines in $rexp so that we can print them in
@@ -117,12 +127,14 @@ proc handle-multiline-outputs { text } {
set escaped_regex [string map {"\n" "\\n"} $rexp]
verbose "escaped_regex: ${escaped_regex}" 4
+ set title "$testname_with_flags expected multiline pattern lines
$start_line-$end_line"
+
# Use "regsub" to attempt to prune the pattern from $text
if {[regsub -line $rexp $text "" text]} {
# Success; the multiline pattern was pruned.
- pass "expected multiline pattern $index was found:
\"$escaped_regex\""
+ pass "$title was found: \"$escaped_regex\""
} else {
- fail "expected multiline pattern $index not found:
\"$escaped_regex\""
