[gcc r17-2319] testsuite: Fix gcc.target/x86_64/abi tests on NetBSD

https://gcc.gnu.org/g:755885f5424c5b843e8b82c3afb4aa1a1d4a6e58

commit r17-2319-g755885f5424c5b843e8b82c3afb4aa1a1d4a6e58
Author: Rainer Orth <[email protected]>
Date:   Fri Jul 10 19:25:24 2026 +0200

    testsuite: Fix gcc.target/x86_64/abi tests on NetBSD
    
    Several of the gcc.target/x86_64/abi tests FAIL on NetBSD/amd64:
    
    FAIL: gcc.target/x86_64/abi/ms-sysv/ms-sysv.c -mcall-ms2sysv-xlogues -O0 -g3 "-DGEN_ARGS=-p0\ --omit-rbp-clobbers" (test for excess errors)
    Excess errors:
    gcc.target/x86_64/abi/ms-sysv/ms-sysv.c:394:19: warning: array subscript has type 'char' [-Wchar-subscripts]
    
    FAIL: gcc.target/x86_64/abi/ms-sysv/ms-sysv.c  -O2 "-DGEN_ARGS=-p1" (test for ex
    cess errors)
    Excess errors:
    gcc.target/x86_64/abi/ms-sysv/ms-sysv.c:394:19: warning: array subscript has type 'char' [-Wchar-subscripts]
    gcc/ms-sysv/ms-sysv-generated.h:42:1: error: bp cannot be used in 'asm' here
    
    The first issue is fixed by casting the isspace arg to unsigned char,
    the second matches the fix for FreeBSD/amd64:
    
    commit ffc4b179a3bc254b7303d7f9ddbe3e9291851cec
    Author: Rainer Orth <[email protected]>
    Date:   Sat Apr 25 05:10:01 2026 +0200
    
        testsuite: Fix gcc.target/x86_64/abi tests on FreeBSD
    
    Tested on amd64-pc-netbsd10.1, amd64-pc-freebsd15.1, i386-pc-solaris2.11,
    and x86_64-pc-linux-gnu.
    
    2026-07-10  Rainer Orth  <[email protected]>
    
            gcc/testsuite:
            * gcc.target/x86_64/abi/ms-sysv/ms-sysv.c (long_optarg): Cast
            isspace arg to unsigned char.
            * gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp (runtest_ms_sysv): Add
            --omit-rbp-clobbers on NetBSD.

Diff:
---
 gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c   | 2 +-
 gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c
index f055b9c6fc74..7fc82b169637 100644
--- a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c
+++ b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c
@@ -391,7 +391,7 @@ static long long_optarg (const char *optarg, const char *optstr)
   errno = 0;
   ret = strtol(optarg, &end, 0);
 
-  while (isspace (*end))
+  while (isspace ((unsigned char) *end))
     ++end;
 
   if (errno || *end)
diff --git a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
index 4ff83bba1c50..752c3b5cf778 100644
--- a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
+++ b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
@@ -80,7 +80,9 @@ proc runtest_ms_sysv { cflags generator_args } {
     # to generate bp clobbers.
     if { [regexp "(^| )-(O0|fno-omit-frame-pointer|p|pg)( |$)" \
 		 "$TEST_ALWAYS_FLAGS $cflags" match]
-	 || [istarget *-*-solaris*] || [istarget *-*-freebsd*] } then {
+	 || [istarget *-*-solaris*]
+	 || [istarget *-*-freebsd*]
+	 || [istarget *-*-netbsd*] } then {
 	set generator_args "$generator_args --omit-rbp-clobbers"
     }