[compiler-rt][test] XFAIL two tests on 32-bit sparc

[ro]

Summary

Two tests FAIL on 32-bit sparc:

Profile-sparc :: Posix/instrprof-gcov-parallel.test
UBSan-Standalone-sparc :: TestCases/Float/cast-overflow.cpp

The failure mode is similar:

Undefined                       first referenced
 symbol                             in file
__atomic_store_4                    /var/tmp/instrprof-gcov-parallel-6afe8d.o
__atomic_load_4                     /var/tmp/instrprof-gcov-parallel-6afe8d.o

Undefined                       first referenced
 symbol                             in file
__atomic_load_1                     /var/tmp/cast-overflow-72a808.o

This is a known bug: clang doesn't inline atomics on 32-bit sparc, unlike gcc.

The patch therefore XFAILs the tests.

Tested on sparcv9-sun-solaris2.11 and amd64-pc-solaris2.11.

[ro]

Ping? It's been a week.

[ro]

Ping? It's been a week.

[ro]

Ping? Two weeks now.

[vitalybuka]

At least 3 of selected reviewer are not active recently.

[ro]

In D85346#2223224, @vitalybuka wrote:

At least 3 of selected reviewer are not active recently.

I see. I've sometimes found selecting suitable reviewers almost as hard as developing the patch ;-)

Thanks for the review.

compiler-rt/test/profile/Posix/instrprof-gcov-parallel.test

 RUN: mkdir -p %t.d
 RUN: cd %t.d
 
 RUN: %clang -o %t.driver %S/../Inputs/instrprof-gcov-parallel.driver.c
 RUN: %clang --coverage -o %t.target %S/../Inputs/instrprof-gcov-parallel.target.c
 RUN: test -f instrprof-gcov-parallel.target.gcno
 
 RUN: rm -f instrprof-gcov-parallel.target.gcda
 RUN: %run %t.driver %t.target
 RUN: llvm-cov gcov instrprof-gcov-parallel.target.gcda
 RUN: FileCheck --input-file instrprof-gcov-parallel.target.c.gcov %s
 
+# Bug 42535
+# XFAIL: sparc-target-arch
+
 # Test if the .gcda file is correctly created from one of child processes
 # and counters of all processes are recorded correctly.
 # 707 = CHILDREN * COUNT
 CHECK: 707: {{[0-9]+}}: aaa++;

compiler-rt/test/ubsan/TestCases/Float/cast-overflow.cpp

 // RUN: %clangxx -fsanitize=float-cast-overflow %s -o %t
 // RUN: %run %t _
 // RUN: %env_ubsan_opts=print_summary=1:report_error_type=1 %run %t 0 2>&1 | FileCheck %s --check-prefix=CHECK-0
 // RUN: %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK-1
 // RUN: %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK-2
 // RUN: %run %t 3 2>&1 | FileCheck %s --check-prefix=CHECK-3
 // RUN: %run %t 4 2>&1 | FileCheck %s --check-prefix=CHECK-4
 // RUN: %run %t 5 2>&1 | FileCheck %s --check-prefix=CHECK-5
 // RUN: %run %t 6 2>&1 | FileCheck %s --check-prefix=CHECK-6
 // FIXME: %run %t 7 2>&1 | FileCheck %s --check-prefix=CHECK-7
 // FIXME: not %run %t 8 2>&1 | FileCheck %s --check-prefix=CHECK-8
 // RUN: not %run %t 9 2>&1 | FileCheck %s --check-prefix=CHECK-9
 
+// Bug 42535
+// XFAIL: sparc-target-arch
+
 // This test assumes float and double are IEEE-754 single- and double-precision.
 
 #if defined(__APPLE__)
 # include <machine/endian.h>
 # define BYTE_ORDER __DARWIN_BYTE_ORDER
 # define BIG_ENDIAN __DARWIN_BIG_ENDIAN
 # define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
 #elif defined(__FreeBSD__) || defined(__NetBSD__)