GH-111485: Separate out parsing, analysis and code-gen phases

Makefile.pre.in

@@ -1587,14 +1587,15 @@ regen-cases:
 	$(PYTHON_FOR_REGEN) \
 	    $(srcdir)/Tools/cases_generator/generate_cases.py \
 		$(CASESFLAG) \
-		-o $(srcdir)/Python/generated_cases.c.h.new \
 		-n $(srcdir)/Include/opcode_ids.h.new \
 		-t $(srcdir)/Python/opcode_targets.h.new \
 		-m $(srcdir)/Include/internal/pycore_opcode_metadata.h.new \
 		-e $(srcdir)/Python/executor_cases.c.h.new \
 		-p $(srcdir)/Lib/_opcode_metadata.py.new \
 		-a $(srcdir)/Python/abstract_interp_cases.c.h.new \
 		$(srcdir)/Python/bytecodes.c
+	$(PYTHON_FOR_REGEN) \
+	    $(srcdir)/Tools/cases_generator/tier1_generator.py -o $(srcdir)/Python/generated_cases.c.h.new $(srcdir)/Python/bytecodes.c
 	$(UPDATE_FILE) $(srcdir)/Python/generated_cases.c.h $(srcdir)/Python/generated_cases.c.h.new
 	$(UPDATE_FILE) $(srcdir)/Include/opcode_ids.h $(srcdir)/Include/opcode_ids.h.new
 	$(UPDATE_FILE) $(srcdir)/Python/opcode_targets.h $(srcdir)/Python/opcode_targets.h.new

Python/bytecodes.c

@@ -800,11 +800,11 @@ dummy_func(
         // We also push it onto the stack on exit, but that's a
         // different frame, and it's accounted for by _PUSH_FRAME.
         op(_POP_FRAME, (retval --)) {
-            assert(EMPTY());
             #if TIER_ONE
             assert(frame != &entry_frame);
             #endif
             STORE_SP();
+            assert(EMPTY());
             _Py_LeaveRecursiveCallPy(tstate);
             // GH-99729: We need to unlink the frame *before* clearing it:
             _PyInterpreterFrame *dying = frame;
@@ -1165,7 +1165,6 @@ dummy_func(
             }
         }
 
-
         inst(STORE_NAME, (v -- )) {
             PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
             PyObject *ns = LOCALS();
@@ -3130,7 +3129,7 @@ dummy_func(
         // The 'unused' output effect represents the return value
         // (which will be pushed when the frame returns).
         // It is needed so CALL_PY_EXACT_ARGS matches its family.
-        op(_PUSH_FRAME, (new_frame: _PyInterpreterFrame* -- unused)) {
+        op(_PUSH_FRAME, (new_frame: _PyInterpreterFrame* -- unused if (0))) {
             // Write it out explicitly because it's subtly different.
             // Eventually this should be the only occurrence of this code.
             assert(tstate->interp->eval_frame == NULL);