grep branch, master, updated. v3.3-30-gfdd45db

[Jim Meyering]

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http://git.savannah.gnu.org/cgit/grep.git/commit/?id=fdd45db167c9e553f8c667fa1db0f96d8ae8eab4


commit fdd45db167c9e553f8c667fa1db0f96d8ae8eab4
Author: Jim Meyering <address@hidden>
Date:   Sat Nov 30 15:10:57 2019 +0800

    tests: add test that would have detected -Fw perf regression
    
    * tests/mb-non-UTF8-perf-Fw: New file. Detect v3.3-22-g090a4db's
    performance regression.
    * tests/Makefile.am (TESTS): Add it.

diff --git a/tests/Makefile.am b/tests/Makefile.am
index d82501e..82aebbf 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -123,6 +123,7 @@ TESTS =                                             \
   mb-dot-newline                               \
   mb-non-UTF8-overrun                          \
   mb-non-UTF8-performance                      \
+  mb-non-UTF8-perf-Fw                          \
   mb-non-UTF8-word-boundary                    \
   multibyte-white-space                                \
   multiple-begin-or-end-line                   \
diff --git a/tests/mb-non-UTF8-perf-Fw b/tests/mb-non-UTF8-perf-Fw
new file mode 100755
index 0000000..3493670
--- /dev/null
+++ b/tests/mb-non-UTF8-perf-Fw
@@ -0,0 +1,31 @@
+#!/bin/sh
+# Test for a performance regression with -Fw and a non-UTF8 multibyte locale.
+
+# Copyright 2019 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/init.sh"; path_prepend_ ../src
+
+fail=0
+
+require_JP_EUC_locale_
+
+yes 00 | head -10000000 > in || framework_failure_
+
+# Before fixing the regression, this would have taken minutes.
+# With the fix, it typically completes in well under one second.
+returns_ 1 timeout 30 grep -Fw 0 in || fail=1
+
+Exit $fail

-----------------------------------------------------------------------

Summary of changes:
 tests/Makefile.am                                        |  1 +
 tests/{mb-non-UTF8-word-boundary => mb-non-UTF8-perf-Fw} | 12 +++++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)
 copy tests/{mb-non-UTF8-word-boundary => mb-non-UTF8-perf-Fw} (72%)


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