[gcc r12-8295] testsuite: Skip target not support -pthread [PR104676].

[gcc r12-8295] testsuite: Skip target not support -pthread [PR104676].

[Kito Cheng]

https://gcc.gnu.org/g:d5b66a905322262483af5c4ca6cb6676c24e1f3f

commit r12-8295-gd5b66a905322262483af5c4ca6cb6676c24e1f3f
Author: Jia-Wei Chen <jiawei@iscas.ac.cn>
Date:   Tue Apr 19 11:11:24 2022 +0800

    testsuite: Skip target not support -pthread [PR104676].
    
    The "ftree-parallelize-loops=" imply -pthread option in gcc/gcc.cc,
    some target are not support pthread like elf target use newlib,
    and will get an error:
    
    "*-*-elf-gcc: error: unrecognized command-line option '-pthread'"
    
    so we add an additional condition "{target pthread}" to make sure the
    dg-additional-options runs on support targets.
    
    gcc/testsuite/ChangeLog
    
            PR target/104676
            * gcc.dg/torture/pr104676.c: Add "{target pthread}" check.

Diff:
---
 gcc/testsuite/gcc.dg/torture/pr104676.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.dg/torture/pr104676.c b/gcc/testsuite/gcc.dg/torture/pr104676.c
index 50845bb9e15..0991b78f758 100644
--- a/gcc/testsuite/gcc.dg/torture/pr104676.c
+++ b/gcc/testsuite/gcc.dg/torture/pr104676.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-additional-options "-ftree-loop-distribution -ftree-parallelize-loops=2" } */
+/* { dg-additional-options "-ftree-loop-distribution -ftree-parallelize-loops=2" { target pthread } } */
 
 struct S {
   int f;