Fix: Skip tests which test for symbols.

suite/auto-sync/.gitignore

@@ -9,3 +9,4 @@ src/autosync/Tests/MCUpdaterTests/Disassembler/ARCH/Output
 src/autosync/lit_config/test_dir_*
 src/autosync/lit_config/.lit_test_times.txt
 src/autosync/Tests/MCUpdaterTests/test_output
+src/autosync/Tests/MCUpdaterTests/ARCH/Output

suite/auto-sync/src/autosync/MCUpdater.py

@@ -142,7 +142,7 @@ def init_tests(self, unified_test_cases: bool):
         log.debug(f"llvm-mc result: {mc_output}")
         text_section = 0  # Counts the .text sections
         asm_pat = f"(?P<asm_text>.+)"
-        enc_pat = r"(\[?(?P<enc_bytes>((0x[a-fA-F0-9]{1,2}[, ]{0,2}))+)[^, ]?\]?)"
+        enc_pat = r"(\[?(?P<full_enc_string>(?P<enc_bytes>((0x[a-fA-F0-9]{1,2}[, ]{0,2}))+)[^, ]?)\]?)"
         for line in mc_output.stdout.splitlines():
             line = line.decode("utf8")
             if ".text" in line:
@@ -153,6 +153,11 @@ def init_tests(self, unified_test_cases: bool):
             )
             if not match:
                 continue
+            full_enc_string = match.group("full_enc_string")
+            if re.search(r",\s?A$", full_enc_string):
+                # The encoding string contains symbol information of the form:
+                # [0xc0,0xe0,A ,A,A,A]. We ignore these for now.
+                continue
             enc_bytes = match.group("enc_bytes").strip()
             asm_text = match.group("asm_text").strip()
             asm_text = re.sub(r"\t+", " ", asm_text)

suite/auto-sync/src/autosync/Tests/MCUpdaterTests/ARCH/test_no_symbol.s.txt

@@ -0,0 +1,19 @@
+# RUN: llvm-mc -triple s390x-unknown-unknown -mcpu=z13 --show-encoding %s | FileCheck %s
+
+# RUN: llvm-mc -triple s390x-unknown-unknown -mcpu=z13 -filetype=obj %s | \
+# RUN: llvm-readobj -r - | FileCheck %s -check-prefix=CHECK-REL
+
+# RUN: llvm-mc -triple s390x-unknown-unknown -mcpu=z13 -filetype=obj %s | \
+# RUN: llvm-objdump -d - | FileCheck %s -check-prefix=CHECK-DIS
+
+# CHECK: larl %r14, target                      # encoding: [0xc0,0xe0,A,A,A,A]
+# CHECK-NEXT:                                   # fixup A - offset: 2, value: target+2, kind: FK_390_PC32DBL
+# CHECK-REL:                                    0x{{[0-9A-F]*2}} R_390_PC32DBL target 0x2
+	.align 16
+	larl %r14, target
+
+# CHECK: larl %r14, target@GOT                  # encoding: [0xc0,0xe0,A,A,A,A]
+# CHECK-NEXT:                                   # fixup A - offset: 2, value: target@GOT+2, kind: FK_390_PC32DBL
+# CHECK-REL:                                    0x{{[0-9A-F]*2}} R_390_GOTENT target 0x2
+	.align 16
+	larl %r14, target@got

suite/auto-sync/src/autosync/Tests/test_mcupdater.py

@@ -127,6 +127,31 @@ def multi_mode_separated_test_cases(self):
             ],
         )
 
+    def test_no_symbol_tests(self):
+        with self.mutex:
+            out_dir = Path(get_path("{MCUPDATER_TEST_OUT_DIR}").joinpath("no_symbol"))
+            if not out_dir.exists():
+                out_dir.mkdir(parents=True)
+            for file in out_dir.iterdir():
+                logging.debug(f"Delete old file: {file}")
+                os.remove(file)
+            test_only_overwrite_path_var(
+                "{MCUPDATER_OUT_DIR}",
+                out_dir,
+            )
+            self.updater = MCUpdater(
+                "ARCH",
+                get_path("{MCUPDATER_TEST_DIR}"),
+                [],
+                [],
+                False,
+            )
+            self.updater.gen_all()
+            self.assertFalse(
+                out_dir.joinpath("test_no_symbol.s.txt.yaml").exists(),
+                "File should not exist",
+            )
+
     def compare_files(self, out_dir: Path, filenames: list[str]) -> bool:
         if not out_dir.is_dir():
             logging.error(f"{out_dir} is not a directory.")