added a unitest for initialization

tests/jit/test_instance_vars.py

@@ -0,0 +1,61 @@
+from .base import BaseJITTest
+
+
+class TestInstanceVars(BaseJITTest):
+    def test_initialize(self, topaz, tmpdir):
+        traces = self.run(topaz, tmpdir, """
+        class A
+          def initialize
+            @a = 1
+            @b = 2
+            @c = 3
+          end
+        end
+        i = 0
+        while i < 10000
+            A.new
+            i += 1
+        end
+        """)
+        self.assert_matches(traces[0].loop, """
+        label(p0, p1, p3, p4, p6, p9, i41, p18, p21, p23, p30, p29, descr=TargetToken(4323634304))
+        debug_merge_point(0, 0, '<main> at LOAD_DEREF')
+        debug_merge_point(0, 0, '<main> at LOAD_CONST')
+        debug_merge_point(0, 0, '<main> at SEND')
+        setfield_gc(p23, 34, descr=<FieldS topaz.executioncontext.ExecutionContext.inst_last_instr 24>)
+        guard_not_invalidated(descr=<Guard0x101c0dcb8>)
+        p43 = force_token()
+        i44 = int_lt(i41, 10000)
+        guard_true(i44, descr=<Guard0x101c0dbc8>)
+        debug_merge_point(0, 0, '<main> at JUMP_IF_FALSE')
+        debug_merge_point(0, 0, '<main> at LOAD_SCOPE')
+        debug_merge_point(0, 0, '<main> at LOAD_LOCAL_CONSTANT')
+        debug_merge_point(0, 0, '<main> at SEND')
+        p45 = force_token()
+        p46 = force_token()
+        p47 = force_token()
+        debug_merge_point(1, 1, 'initialize at LOAD_SELF')
+        debug_merge_point(1, 1, 'initialize at LOAD_CONST')
+        debug_merge_point(1, 1, 'initialize at STORE_INSTANCE_VAR')
+        debug_merge_point(1, 1, 'initialize at DISCARD_TOP')
+        debug_merge_point(1, 1, 'initialize at LOAD_SELF')
+        debug_merge_point(1, 1, 'initialize at LOAD_CONST')
+        debug_merge_point(1, 1, 'initialize at STORE_INSTANCE_VAR')
+        debug_merge_point(1, 1, 'initialize at DISCARD_TOP')
+        debug_merge_point(1, 1, 'initialize at LOAD_SELF')
+        debug_merge_point(1, 1, 'initialize at LOAD_CONST')
+        debug_merge_point(1, 1, 'initialize at STORE_INSTANCE_VAR')
+        debug_merge_point(1, 1, 'initialize at RETURN')
+        debug_merge_point(0, 0, '<main> at DISCARD_TOP')
+        debug_merge_point(0, 0, '<main> at LOAD_DEREF')
+        debug_merge_point(0, 0, '<main> at LOAD_CONST')
+        debug_merge_point(0, 0, '<main> at SEND')
+        p48 = force_token()
+        i49 = int_add(i41, 1)
+        debug_merge_point(0, 0, '<main> at STORE_DEREF')
+        debug_merge_point(0, 0, '<main> at DISCARD_TOP')
+        debug_merge_point(0, 0, '<main> at JUMP')
+        debug_merge_point(0, 0, '<main> at LOAD_DEREF')
+        setfield_gc(p23, 58, descr=<FieldS topaz.executioncontext.ExecutionContext.inst_last_instr 24>)
+        jump(p0, p1, p3, p4, p6, p9, i49, p18, p21, p23, p30, p29, descr=TargetToken(4323634304))
+        """)