[glibc] x86: Add missing rtm tests for strcmp family

[Noah Goldstein <nwg@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7c8ca1789393323541719df4b636e4853284ff47

commit 7c8ca1789393323541719df4b636e4853284ff47
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date:   Tue Jul 12 12:29:10 2022 -0700

    x86: Add missing rtm tests for strcmp family
    
    Add new tests for:
        strcasecmp
        strncasecmp
        strcmp
        wcscmp
    
    These functions all have avx2_rtm implementations so should be tested.

Diff:
---
 sysdeps/x86/Makefile              |  8 +++++
 sysdeps/x86/tst-strcasecmp-rtm.c  | 23 +++++++++++++
 sysdeps/x86/tst-strcmp-rtm.c      | 70 +++++++++++++++++++++++++++++++++++++++
 sysdeps/x86/tst-strncasecmp-rtm.c | 23 +++++++++++++
 sysdeps/x86/tst-strncmp-rtm.c     |  6 ++--
 sysdeps/x86/tst-wcscmp-rtm.c      | 22 ++++++++++++
 6 files changed, 150 insertions(+), 2 deletions(-)

diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index c6bee981f8..56fd5fc805 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -95,11 +95,15 @@ tests += \
   tst-memmove-rtm \
   tst-memrchr-rtm \
   tst-memset-rtm \
+  tst-strcasecmp-rtm \
   tst-strchr-rtm \
+  tst-strcmp-rtm \
   tst-strcpy-rtm \
   tst-strlen-rtm \
+  tst-strncasecmp-rtm \
   tst-strncmp-rtm \
   tst-strrchr-rtm \
+  tst-wcscmp-rtm \
   tst-wcsncmp-rtm \
 # tests
 
@@ -108,11 +112,15 @@ CFLAGS-tst-memcmp-rtm.c += -mrtm
 CFLAGS-tst-memmove-rtm.c += -mrtm
 CFLAGS-tst-memrchr-rtm.c += -mrtm
 CFLAGS-tst-memset-rtm.c += -mrtm
+CFLAGS-tst-strcasecmp-rtm.c += -mrtm
 CFLAGS-tst-strchr-rtm.c += -mrtm
+CFLAGS-tst-strcmp-rtm.c += -mrtm
 CFLAGS-tst-strcpy-rtm.c += -mrtm
 CFLAGS-tst-strlen-rtm.c += -mrtm
+CFLAGS-tst-strncasecmp-rtm.c += -mrtm -Wno-error
 CFLAGS-tst-strncmp-rtm.c += -mrtm -Wno-error
 CFLAGS-tst-strrchr-rtm.c += -mrtm
+CFLAGS-tst-wcscmp-rtm.c += -mrtm
 CFLAGS-tst-wcsncmp-rtm.c += -mrtm -Wno-error
 endif
 
diff --git a/sysdeps/x86/tst-strcasecmp-rtm.c b/sysdeps/x86/tst-strcasecmp-rtm.c
new file mode 100644
index 0000000000..da460799ce
--- /dev/null
+++ b/sysdeps/x86/tst-strcasecmp-rtm.c
@@ -0,0 +1,23 @@
+/* Test case for strcasecmp inside a transactionally executing RTM
+   region.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#define STRCMP strcasecmp
+#define TEST_NAME "strcasecmp"
+
+#include "tst-strcmp-rtm.c"
diff --git a/sysdeps/x86/tst-strcmp-rtm.c b/sysdeps/x86/tst-strcmp-rtm.c
new file mode 100644
index 0000000000..371916a2f0
--- /dev/null
+++ b/sysdeps/x86/tst-strcmp-rtm.c
@@ -0,0 +1,70 @@
+/* Test case for strcmp inside a transactionally executing RTM
+   region.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <stdint.h>
+#include <tst-string-rtm.h>
+
+#ifdef WIDE
+# define CHAR wchar_t
+# define MEMSET wmemset
+# define STRCMP wcscmp
+# define TEST_NAME "wcscmp"
+#else /* !WIDE */
+# define CHAR char
+# define MEMSET memset
+
+# ifndef STRCMP
+#  define STRCMP strcmp
+#  define TEST_NAME "strcmp"
+# endif
+#endif
+
+#define LOOP 3000
+#define STRING_SIZE 1024
+CHAR string1[STRING_SIZE];
+CHAR string2[STRING_SIZE];
+
+__attribute__ ((noinline, noclone))
+static int
+prepare (void)
+{
+  MEMSET (string1, 'a', STRING_SIZE - 1);
+  MEMSET (string2, 'a', STRING_SIZE - 1);
+  if (STRCMP (string1, string2) == 0)
+    return EXIT_SUCCESS;
+  else
+    return EXIT_FAILURE;
+}
+
+__attribute__ ((noinline, noclone))
+static int
+function (void)
+{
+  if (STRCMP (string1, string2) == 0)
+    return 0;
+  else
+    return 1;
+}
+
+
+static int
+do_test (void)
+{
+  return do_test_1 (TEST_NAME, LOOP, prepare, function);
+}
diff --git a/sysdeps/x86/tst-strncasecmp-rtm.c b/sysdeps/x86/tst-strncasecmp-rtm.c
new file mode 100644
index 0000000000..4ebe58951b
--- /dev/null
+++ b/sysdeps/x86/tst-strncasecmp-rtm.c
@@ -0,0 +1,23 @@
+/* Test case for strncasecmp inside a transactionally executing RTM
+   region.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#define STRNCMP strncasecmp
+#define TEST_NAME "strncasecmp"
+
+#include "tst-strncmp-rtm.c"
diff --git a/sysdeps/x86/tst-strncmp-rtm.c b/sysdeps/x86/tst-strncmp-rtm.c
index a3b14e72ff..2d27b20a68 100644
--- a/sysdeps/x86/tst-strncmp-rtm.c
+++ b/sysdeps/x86/tst-strncmp-rtm.c
@@ -27,8 +27,10 @@
 #else /* !WIDE */
 # define CHAR char
 # define MEMSET memset
-# define STRNCMP strncmp
-# define TEST_NAME "strncmp"
+# ifndef STRNCMP
+#  define STRNCMP strncmp
+#  define TEST_NAME "strncmp"
+# endif
 #endif /* !WIDE */
 
 
diff --git a/sysdeps/x86/tst-wcscmp-rtm.c b/sysdeps/x86/tst-wcscmp-rtm.c
new file mode 100644
index 0000000000..28a5b4b82d
--- /dev/null
+++ b/sysdeps/x86/tst-wcscmp-rtm.c
@@ -0,0 +1,22 @@
+/* Test case for wcscmp inside a transactionally executing RTM
+   region.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#define WIDE 1
+#include <wchar.h>
+#include "tst-strcmp-rtm.c"