Mark test cases as unsupported on z/OS (#90990)

These test cases are testing features not available when either
targeting the s390x-ibm-zos target or use tools/features not available
on the z/OS operating system. In a couple cases the lit test had a
number of subtests with one or two that aren't supported on z/OS. Rather
than mark the entire test as unsupported I split out the unsupported
tests into a separate test case.

Author: perry-ca

clang/test/AST/Interp/cxx23.cpp

@@ -1,3 +1,4 @@
+// UNSUPPORTED:  target={{.*}}-zos{{.*}}
 // RUN: %clang_cc1 -std=c++20 -fsyntax-only -fcxx-exceptions -verify=ref20,all,all20 %s
 // RUN: %clang_cc1 -std=c++23 -fsyntax-only -fcxx-exceptions -verify=ref23,all %s
 // RUN: %clang_cc1 -std=c++20 -fsyntax-only -fcxx-exceptions -verify=expected20,all,all20 %s -fexperimental-new-constant-interpreter

clang/test/CodeGen/ffp-contract-option.c

@@ -1,4 +1,5 @@
 // REQUIRES: x86-registered-target
+// UNSUPPORTED: target={{.*}}-zos{{.*}}
 // RUN: %clang_cc1 -triple=x86_64 %s -emit-llvm -o - \
 // RUN:| FileCheck --check-prefixes CHECK,CHECK-DEFAULT  %s
 

clang/test/CodeGen/ffp-model.c

@@ -1,4 +1,5 @@
 // REQUIRES: x86-registered-target
+// UNSUPPORTED: target={{.*}}-zos{{.*}}
 // RUN: %clang -S -emit-llvm -fenable-matrix -ffp-model=fast %s -o - \
 // RUN: | FileCheck %s --check-prefixes=CHECK,CHECK-FAST
 

clang/test/CodeGen/fp-matrix-pragma.c

@@ -1,4 +1,5 @@
 // RUN: %clang -emit-llvm -S -fenable-matrix -mllvm -disable-llvm-optzns %s -o - | FileCheck %s
+// UNSUPPORTED: target={{.*}}-zos{{.*}}
 
 typedef float fx2x2_t __attribute__((matrix_type(2, 2)));
 typedef int ix2x2_t __attribute__((matrix_type(2, 2)));

clang/test/Driver/clang-offload-bundler-asserts-on.c

@@ -1,6 +1,6 @@
 // REQUIRES: x86-registered-target
 // REQUIRES: asserts
-// UNSUPPORTED: target={{.*}}-macosx{{.*}}, target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}
+// UNSUPPORTED: target={{.*}}-macosx{{.*}}, target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}, target={{.*}}-zos{{.*}}
 
 // Generate the file we can bundle.
 // RUN: %clang -O0 -target %itanium_abi_triple %s -c -o %t.o

clang/test/Driver/clang-offload-bundler-standardize.c

@@ -1,6 +1,6 @@
 // REQUIRES: x86-registered-target
 // REQUIRES: asserts
-// UNSUPPORTED: target={{.*}}-macosx{{.*}}, target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}
+// UNSUPPORTED: target={{.*}}-macosx{{.*}}, target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}, target={{.*}}-zos{{.*}}
 // REQUIRES: asserts
 
 // Generate the file we can bundle.

clang/test/Driver/clang-offload-bundler-zlib.c

@@ -1,6 +1,6 @@
 // REQUIRES: zlib && !zstd
 // REQUIRES: x86-registered-target
-// UNSUPPORTED: target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}
+// UNSUPPORTED: target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}, target={{.*}}-zos{{.*}}
 
 //
 // Generate the host binary to be bundled.

clang/test/Driver/clang-offload-bundler-zstd.c

@@ -1,6 +1,6 @@
 // REQUIRES: zstd
 // REQUIRES: x86-registered-target
-// UNSUPPORTED: target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}
+// UNSUPPORTED: target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}, target={{.*}}-zos{{.*}}
 
 //
 // Generate the host binary to be bundled.

clang/test/Driver/clang-offload-bundler.c

@@ -1,5 +1,5 @@
 // REQUIRES: x86-registered-target
-// UNSUPPORTED: target={{.*}}-macosx{{.*}}, target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}
+// UNSUPPORTED: target={{.*}}-macosx{{.*}}, target={{.*}}-darwin{{.*}}, target={{.*}}-aix{{.*}}, target={{.*}}-zos{{.*}}
 
 //
 // Generate all the types of files we can bundle.

clang/test/Driver/std-trigraph-override.c

@@ -0,0 +1,7 @@
+// UNSUPPORTED: target={{.*-zos.*}}
+// RUN: %clang -w -std=c99 -trigraphs -std=gnu99 %s -E -o - | FileCheck -check-prefix=OVERRIDE %s
+// OVERRIDE: ??(??)
+// RUN: %clang -w -std=c99 -ftrigraphs -std=gnu99 %s -E -o - | FileCheck -check-prefix=FOVERRIDE %s
+// FOVERRIDE: ??(??)
+
+??(??)

clang/test/Driver/std.c

@@ -1,7 +1,3 @@
-// RUN: %clang -w -std=c99 -trigraphs -std=gnu99 %s -E -o - | FileCheck -check-prefix=OVERRIDE %s
-// OVERRIDE: ??(??)
-// RUN: %clang -w -std=c99 -ftrigraphs -std=gnu99 %s -E -o - | FileCheck -check-prefix=FOVERRIDE %s
-// FOVERRIDE: ??(??)
 // RUN: %clang -w -ansi %s -E -o - | FileCheck -check-prefix=ANSI %s
 // ANSI: []
 // RUN: %clang -w -ansi %s -fno-trigraphs -E -o - | FileCheck -check-prefix=ANSI-OVERRIDE %s

clang/test/FixIt/fixit-c++2a-tls.cpp

@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -verify -std=c++2a -pedantic-errors %s
+// RUN: cp %s %t
+// RUN: %clang_cc1 -x c++ -std=c++2a -fixit %t
+// RUN: %clang_cc1 -Wall -pedantic-errors -x c++ -std=c++2a %t
+// RUN: cat %t | FileCheck %s
+// UNSUPPORTED: target={{.*-zos.*}}
+
+/* This is a test of the various code modification hints that only
+   apply in C++2a. */
+
+namespace constinit_mismatch {
+  extern thread_local constinit int a; // expected-note {{declared constinit here}}
+  thread_local int a = 123; // expected-error {{'constinit' specifier missing on initializing declaration of 'a'}}
+  // CHECK: {{^}}  constinit thread_local int a = 123;
+}
+

clang/test/FixIt/fixit-c++2a.cpp

@@ -16,10 +16,6 @@ template<typename ...T> void init_capture_pack(T ...a) {
 }
 
 namespace constinit_mismatch {
-  extern thread_local constinit int a; // expected-note {{declared constinit here}}
-  thread_local int a = 123; // expected-error {{'constinit' specifier missing on initializing declaration of 'a'}}
-  // CHECK: {{^}}  constinit thread_local int a = 123;
-
   int b = 123; // expected-note {{add the 'constinit' specifier}}
   extern constinit int b; // expected-error {{'constinit' specifier added after initialization of variable}}
   // CHECK: {{^}}  extern int b;

clang/test/Interpreter/const.cpp

@@ -1,4 +1,4 @@
-// UNSUPPORTED: system-aix
+// UNSUPPORTED: system-aix, system-zos
 // see https://github.com/llvm/llvm-project/issues/68092
 // XFAIL: host={{.*}}-windows-msvc
 

clang/test/Lexer/unicode.c

@@ -3,6 +3,7 @@
 // RUN: %clang_cc1 -fsyntax-only -verify=expected,cxx -x c++ -std=c++11 %s
 // RUN: %clang_cc1 -std=c99 -E -DPP_ONLY=1 %s | FileCheck %s --strict-whitespace
 // RUN: %clang_cc1 -E -DPP_ONLY=1 %s | FileCheck %s --strict-whitespace
+// UNSUPPORTED: system-zos
 
 // This file contains Unicode characters; please do not "fix" them!
 

clang/test/Modules/cstd.m

@@ -1,5 +1,6 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fsyntax-only -internal-isystem %S/Inputs/System/usr/include -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules -fmodules-cache-path=%t -D__need_wint_t -Werror=implicit-function-declaration %s
+// UNSUPPORTED: target={{.*}}-zos{{.*}}
 
 @import uses_other_constants;
 const double other_value = DBL_MAX;

clang/test/Modules/merge-objc-protocol-visibility.m

@@ -1,4 +1,4 @@
-// UNSUPPORTED: target={{.*}}-aix{{.*}}
+// UNSUPPORTED: target={{.*}}-aix{{.*}}, target={{.*}}-zos{{.*}}
 // RUN: rm -rf %t
 // RUN: split-file %s %t
 // RUN: %clang_cc1 -emit-llvm -o %t/test.bc -F%t/Frameworks %t/test.m -Werror=objc-method-access -DHIDDEN_FIRST=1 \

clang/test/PCH/chain-openmp-threadprivate.cpp

@@ -8,6 +8,7 @@
 // with PCH
 // RUN: %clang_cc1 -fopenmp -emit-llvm -chain-include %s -chain-include %s %s -o - | FileCheck %s -check-prefix=CHECK-TLS-1
 // RUN: %clang_cc1 -fopenmp -emit-llvm -chain-include %s -chain-include %s %s -o - | FileCheck %s -check-prefix=CHECK-TLS-2
+// // UNSUPPORTED: target={{.*}}-zos{{.*}}
 
 #if !defined(PASS1)
 #define PASS1

clang/test/Sema/thread_local.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -fsyntax-only -std=c23 %s -verify
+// UNSUPPORTED: target={{.*}}-zos{{.*}}
 
 // Ensure that thread_local and _Thread_local are synonyms in C23 and both
 // restrict local variables to be explicitly static or extern.

llvm/test/MC/AsmParser/layout-interdependency.s

@@ -1,5 +1,6 @@
 # RUN: not llvm-mc --filetype=obj %s -o /dev/null 2>&1 | FileCheck %s
 # REQUIRES: object-emission
+# UNSUPPORTED: target={{.*}}-zos{{.*}}
 
 fct_end:
 

llvm/test/Object/archive-big-extract.test

@@ -1,4 +1,5 @@
 ## Test extract xcoff object file from AIX big archive.
+# UNSUPPORTED: target={{.*}}-zos{{.*}}
 # RUN: rm -rf %t && mkdir -p %t/extracted/ && cd %t/extracted/
 # RUN: llvm-ar x %p/Inputs/aix-big-archive.a
 # RUN: echo "content_of_evenlen" > evenlen_1

llvm/test/Object/archive-extract.test

@@ -1,6 +1,7 @@
 ; This test just makes sure that llvm-ar can extract bytecode members
 ; from various style archives.
 
+; UNSUPPORTED: target={{.*}}-zos{{.*}}
 ; RUN: rm -rf %t && mkdir -p %t && cd %t
 
 ; RUN: rm -f very_long_bytecode_file_name.bc