superpmi.py: Add -jitoption for asmdiffs (#70939)

The new `-jitoption` option passes the argument options to both baseline and diff
compilers. This is a convenience option: there already is `-base_jit_option` and
`-diff_jit_option` to specify passing options to either baseline or diff.

The name of the option is the same as that used for `replay`.

src/coreclr/scripts/superpmi.py

@@ -323,11 +323,13 @@ def add_core_root_arguments(parser, build_type_default, build_type_help):
 replay_parser.add_argument("-jit_path", help="Path to clrjit. Defaults to Core_Root JIT.")
 replay_parser.add_argument("-jitoption", action="append", help="Pass option through to the jit. Format is key=value, where key is the option name without leading COMPlus_")
 
+# common subparser for asmdiffs and throughput
 base_diff_parser = argparse.ArgumentParser(add_help=False)
 base_diff_parser.add_argument("-base_jit_path", help="Path to baseline clrjit. Defaults to baseline JIT from rolling build, by computing baseline git hash.")
 base_diff_parser.add_argument("-diff_jit_path", help="Path to diff clrjit. Defaults to Core_Root JIT.")
 base_diff_parser.add_argument("-git_hash", help="Use this git hash as the current hash for use to find a baseline JIT. Defaults to current git hash of source tree.")
 base_diff_parser.add_argument("-base_git_hash", help="Use this git hash as the baseline JIT hash. Default: search for the baseline hash.")
+base_diff_parser.add_argument("-jitoption", action="append", help="Option to pass to both baseline and diff JIT. Format is key=value, where key is the option name without leading COMPlus_")
 base_diff_parser.add_argument("-base_jit_option", action="append", help="Option to pass to the baseline JIT. Format is key=value, where key is the option name without leading COMPlus_...")
 base_diff_parser.add_argument("-diff_jit_option", action="append", help="Option to pass to the diff JIT. Format is key=value, where key is the option name without leading COMPlus_...")
 
@@ -1465,6 +1467,9 @@ def replay_with_asm_diffs(self):
         if self.coreclr_args.base_jit_option:
             for o in self.coreclr_args.base_jit_option:
                 base_option_flags += "-jitoption", o
+        if self.coreclr_args.jitoption:
+            for o in self.coreclr_args.jitoption:
+                base_option_flags += "-jitoption", o
         base_option_flags_for_diff_artifact = base_option_flags
 
         diff_option_flags = []
@@ -1473,6 +1478,10 @@ def replay_with_asm_diffs(self):
             for o in self.coreclr_args.diff_jit_option:
                 diff_option_flags += "-jit2option", o
                 diff_option_flags_for_diff_artifact += "-jitoption", o
+        if self.coreclr_args.jitoption:
+            for o in self.coreclr_args.jitoption:
+                diff_option_flags += "-jit2option", o
+                diff_option_flags_for_diff_artifact += "-jitoption", o
 
         if self.coreclr_args.altjit:
             altjit_asm_diffs_flags += [
@@ -3376,6 +3385,11 @@ def verify_base_diff_args():
                             lambda unused: True,
                             "Unable to set base_git_hash")
 
+        coreclr_args.verify(args,
+                            "jitoption",
+                            lambda unused: True,
+                            "Unable to set jitoption")
+
         coreclr_args.verify(args,
                             "base_jit_option",
                             lambda unused: True,