[meta] Use the Rust crate for opcodes/inst_builder code generation;

cranelift/codegen/meta-python/build.py

@@ -5,13 +5,32 @@
 from __future__ import absolute_import
 import argparse
 import isa
-import gen_instr
 import gen_settings
 import gen_build_deps
 import gen_encoding
 import gen_legalizer
 import gen_binemit
 
+try:
+    from typing import List, Set  # noqa
+    from cdsl.isa import TargetISA  # noqa
+    from cdsl.instructions import InstructionGroup  # noqa
+except ImportError:
+    pass
+
+
+def number_all_instructions(isas):
+    # type: (List[TargetISA]) -> None
+    seen = set()  # type: Set[InstructionGroup]
+    num_inst = 1
+    for target_isa in isas:
+        for g in target_isa.instruction_groups:
+            if g not in seen:
+                for i in g.instructions:
+                    i.number = num_inst
+                    num_inst += 1
+                seen.add(g)
+
 
 def main():
     # type: () -> None
@@ -23,8 +42,8 @@ def main():
     out_dir = args.out_dir
 
     isas = isa.all_isas()
+    number_all_instructions(isas)
 
-    gen_instr.generate(isas, out_dir)
     gen_settings.generate(isas, out_dir)
     gen_encoding.generate(isas, out_dir)
     gen_legalizer.generate(isas, out_dir)