Revert "[utils][UpdateLLCTestChecks] Add MIR support to update_llc_test_checks.py." (#166549)

Reverts #164965

Author: vpykhtin

llvm/test/tools/UpdateTestChecks/update_llc_test_checks/Inputs/x86_asm_mir_mixed.ll

@@ -605,7 +605,6 @@ def invoke_tool(exe, cmd_args, ir, preprocess_cmd=None, verbose=False):
 TRIPLE_ARG_RE = re.compile(r"-m?triple[= ]([^ ]+)")
 MARCH_ARG_RE = re.compile(r"-march[= ]([^ ]+)")
 DEBUG_ONLY_ARG_RE = re.compile(r"-debug-only[= ]([^ ]+)")
-STOP_PASS_RE = re.compile(r"-stop-(before|after)=(\w+)")
 
 IS_DEBUG_RECORD_RE = re.compile(r"^(\s+)#dbg_")
 IS_SWITCH_CASE_RE = re.compile(r"^\s+i\d+ \d+, label %\S+")

llvm/test/tools/UpdateTestChecks/update_llc_test_checks/Inputs/x86_asm_mir_mixed.ll.expected

@@ -163,15 +163,13 @@ def add_mir_checks_for_function(
     print_fixed_stack,
     first_check_is_next,
     at_the_function_name,
-    check_indent=None,
 ):
     printed_prefixes = set()
     for run in run_list:
         for prefix in run[0]:
             if prefix in printed_prefixes:
                 break
-            # func_info can be empty if there was a prefix conflict.
-            if not func_dict[prefix].get(func_name):
+            if not func_dict[prefix][func_name]:
                 continue
             if printed_prefixes:
                 # Add some space between different check prefixes.
@@ -187,7 +185,6 @@ def add_mir_checks_for_function(
                 func_dict[prefix][func_name],
                 print_fixed_stack,
                 first_check_is_next,
-                check_indent,
             )
             break
         else:
@@ -207,7 +204,6 @@ def add_mir_check_lines(
     func_info,
     print_fixed_stack,
     first_check_is_next,
-    check_indent=None,
 ):
     func_body = str(func_info).splitlines()
     if single_bb:
@@ -224,10 +220,7 @@ def add_mir_check_lines(
     first_line = func_body[0]
     indent = len(first_line) - len(first_line.lstrip(" "))
     # A check comment, indented the appropriate amount
-    if check_indent is not None:
-        check = "{}; {}".format(check_indent, prefix)
-    else:
-        check = "{:>{}}; {}".format("", indent, prefix)
+    check = "{:>{}}; {}".format("", indent, prefix)
 
     output_lines.append("{}-LABEL: name: {}".format(check, func_name))
 

llvm/test/tools/UpdateTestChecks/update_llc_test_checks/Inputs/x86_asm_mir_same_prefix.ll

@@ -15,7 +15,7 @@
 import os  # Used to advertise this file's name ("autogenerated_note").
 import sys
 
-from UpdateTestChecks import common, mir
+from UpdateTestChecks import common
 
 # llc is the only llc-like in the LLVM tree but downstream forks can add
 # additional ones here if they have them.
@@ -33,7 +33,6 @@ def update_test(ti: common.TestInfo):
             break
 
     run_list = []
-    mir_run_list = []
     for l in ti.run_lines:
         if "|" not in l:
             common.warn("Skipping unparsable RUN line: " + l)
@@ -58,14 +57,9 @@ def update_test(ti: common.TestInfo):
         if m:
             march_in_cmd = m.groups()[0]
 
-        target_list = run_list
         m = common.DEBUG_ONLY_ARG_RE.search(llc_cmd)
         if m and m.groups()[0] == "isel":
             from UpdateTestChecks import isel as output_type
-        elif not m and common.STOP_PASS_RE.search(llc_cmd):
-            # MIR output mode. If -debug-only is present assume
-            # the debug output is the main point of interest.
-            target_list = mir_run_list
         else:
             from UpdateTestChecks import asm as output_type
 
@@ -90,7 +84,7 @@ def update_test(ti: common.TestInfo):
 
         # FIXME: We should use multiple check prefixes to common check lines. For
         # now, we just ignore all but the last.
-        target_list.append(
+        run_list.append(
             (
                 check_prefixes,
                 llc_tool,
@@ -125,20 +119,14 @@ def update_test(ti: common.TestInfo):
         ginfo=ginfo,
     )
 
-    # Dictionary to store MIR function bodies separately
-    mir_func_dict = {}
-    for run_tuple, is_mir in [(run, False) for run in run_list] + [
-        (run, True) for run in mir_run_list
-    ]:
-        (
-            prefixes,
-            llc_tool,
-            llc_args,
-            preprocess_cmd,
-            triple_in_cmd,
-            march_in_cmd,
-        ) = run_tuple
-
+    for (
+        prefixes,
+        llc_tool,
+        llc_args,
+        preprocess_cmd,
+        triple_in_cmd,
+        march_in_cmd,
+    ) in run_list:
         common.debug("Extracted LLC cmd:", llc_tool, llc_args)
         common.debug("Extracted FileCheck prefixes:", str(prefixes))
 
@@ -153,54 +141,22 @@ def update_test(ti: common.TestInfo):
         if not triple:
             triple = common.get_triple_from_march(march_in_cmd)
 
-        if is_mir:
-            # MIR output mode
-            common.debug("Detected MIR output mode for prefixes:", str(prefixes))
-            for prefix in prefixes:
-                if prefix not in mir_func_dict:
-                    mir_func_dict[prefix] = {}
-
-            mir.build_function_info_dictionary(
-                ti.path,
-                raw_tool_output,
-                triple,
-                prefixes,
-                mir_func_dict,
-                ti.args.verbose,
+        scrubber, function_re = output_type.get_run_handler(triple)
+        if 0 == builder.process_run_line(
+            function_re, scrubber, raw_tool_output, prefixes
+        ):
+            common.warn(
+                "Couldn't match any function. Possibly the wrong target triple has been provided"
             )
-        else:
-            # ASM output mode
-            scrubber, function_re = output_type.get_run_handler(triple)
-            if 0 == builder.process_run_line(
-                function_re, scrubber, raw_tool_output, prefixes
-            ):
-                common.warn(
-                    "Couldn't match any function. Possibly the wrong target triple has been provided"
-                )
-            builder.processed_prefixes(prefixes)
+        builder.processed_prefixes(prefixes)
 
     func_dict = builder.finish_and_get_func_dict()
-
-    # Check for conflicts: same prefix used for both ASM and MIR
-    conflicting_prefixes = set(func_dict.keys()) & set(mir_func_dict.keys())
-    if conflicting_prefixes:
-        common.warn(
-            "The following prefixes are used for both ASM and MIR output, which will cause FileCheck failures: {}".format(
-                ", ".join(sorted(conflicting_prefixes))
-            ),
-            test_file=ti.path,
-        )
-        for prefix in conflicting_prefixes:
-            mir_func_dict[prefix] = {}
-            func_dict[prefix] = {}
-
     global_vars_seen_dict = {}
 
     is_in_function = False
     is_in_function_start = False
     func_name = None
     prefix_set = set([prefix for p in run_list for prefix in p[0]])
-    prefix_set.update([prefix for p in mir_run_list for prefix in p[0]])
     common.debug("Rewriting FileCheck prefixes:", str(prefix_set))
     output_lines = []
 
@@ -265,22 +221,6 @@ def update_test(ti: common.TestInfo):
                         is_filtered=builder.is_filtered(),
                     )
                 )
-
-                # Also add MIR checks if we have them for this function
-                if mir_run_list and func_name:
-                    mir.add_mir_checks_for_function(
-                        ti.path,
-                        output_lines,
-                        mir_run_list,
-                        mir_func_dict,
-                        func_name,
-                        single_bb=False,  # Don't skip basic block labels.
-                        print_fixed_stack=False,  # Don't print fixed stack (ASM tests don't need it).
-                        first_check_is_next=False,  # First check is LABEL, not NEXT.
-                        at_the_function_name=False,  # Use "name:" not "@name".
-                        check_indent="",  # No indentation for IR files (not MIR files).
-                    )
-
                 is_in_function_start = False
 
             if is_in_function: