[pypy-svn] r67305 - in pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport: . test

[arigo at codespeak.net]

Author: arigo
Date: Sat Aug 29 13:57:05 2009
New Revision: 67305

Added:
   pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/test/test_runner.py   (contents, props changed)
Modified:
   pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/llmodel.py
Log:
Start copying some do_xxx operations from x86/runner.py.


Modified: pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/llmodel.py
==============================================================================
--- pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/llmodel.py	(original)
+++ pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/llmodel.py	Sat Aug 29 13:57:05 2009
@@ -1,5 +1,28 @@
+import sys
+from pypy.rpython.lltypesystem import lltype, llmemory, rffi
+from pypy.rlib.objectmodel import we_are_translated
+from pypy.rlib.unroll import unrolling_iterable
+from pypy.jit.metainterp.history import BoxInt, BoxPtr
 from pypy.jit.backend.model import AbstractCPU
 from pypy.jit.backend.llsupport.descr import get_field_descr, get_array_descr
+from pypy.jit.backend.llsupport.descr import AbstractFieldDescr
+from pypy.jit.backend.llsupport.descr import AbstractArrayDescr
+
+WORD         = rffi.sizeof(lltype.Signed)
+SIZEOF_CHAR  = rffi.sizeof(lltype.Char)
+SIZEOF_SHORT = rffi.sizeof(rffi.SHORT)
+SIZEOF_INT   = rffi.sizeof(rffi.INT)
+
+unroll_basic_sizes = unrolling_iterable([(lltype.Signed, WORD),
+                                         (lltype.Char,   SIZEOF_CHAR),
+                                         (rffi.SHORT,    SIZEOF_SHORT),
+                                         (rffi.INT,      SIZEOF_INT)])
+
+def _check_addr_range(x):
+    if sys.platform == 'linux2':
+        # this makes assumption about address ranges that are valid
+        # only on linux (?)
+        assert x == 0 or x > (1<<20) or x < (-1<<20)        
 
 
 class AbstractLLCPU(AbstractCPU):
@@ -12,8 +35,51 @@
         self.translate_support_code = translate_support_code
         self.gc_ll_descr = get_ll_description(gcdescr, self)
 
+    # ------------------- helpers and descriptions --------------------
+
+    @staticmethod
+    def cast_adr_to_int(x):
+        res = rffi.cast(lltype.Signed, x)
+        return res
+
+    def cast_int_to_gcref(self, x):
+        if not we_are_translated():
+            _check_addr_range(x)
+        return rffi.cast(llmemory.GCREF, x)
+
     def fielddescrof(self, STRUCT, fieldname):
         return get_field_descr(STRUCT, fieldname, self.translate_support_code)
 
     def arraydescrof(self, A):
         return get_array_descr(A)
+
+    def do_arraylen_gc(self, args, arraydescr):
+        assert isinstance(arraydescr, AbstractArrayDescr)
+        ofs = arraydescr.get_ofs_length(self.translate_support_code)
+        gcref = args[0].getptr_base()
+        length = rffi.cast(rffi.CArrayPtr(lltype.Signed), gcref)[ofs/WORD]
+        return BoxInt(length)
+
+    def do_getarrayitem_gc(self, args, arraydescr):
+        assert isinstance(arraydescr, AbstractArrayDescr)
+        itemindex = args[1].getint()
+        gcref = args[0].getptr_base()
+        ofs = arraydescr.get_base_size(self.translate_support_code)
+        size = arraydescr.get_item_size(self.translate_support_code)
+        ptr = arraydescr.is_array_of_pointers()
+        #
+        for TYPE, itemsize in unroll_basic_sizes:
+            if size == itemsize:
+                val = (rffi.cast(rffi.CArrayPtr(TYPE), gcref)
+                       [ofs/itemsize + itemindex])
+                break
+        else:
+            raise NotImplementedError("size = %d" % size)
+        if ptr:
+            return BoxPtr(self.cast_int_to_gcref(val))
+        else:
+            return BoxInt(rffi.cast(lltype.Signed, val))
+
+
+import pypy.jit.metainterp.executor
+pypy.jit.metainterp.executor.make_execute_list(AbstractLLCPU)

Added: pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/test/test_runner.py
==============================================================================
--- (empty file)
+++ pypy/branch/pyjitpl5-llmodel/pypy/jit/backend/llsupport/test/test_runner.py	Sat Aug 29 13:57:05 2009
@@ -0,0 +1,20 @@
+import py
+from pypy.jit.backend.llsupport.llmodel import AbstractLLCPU
+from pypy.jit.backend.test.runner_test import LLtypeBackendTest
+
+
+class FakeStats(object):
+    pass
+
+class MyLLCPU(AbstractLLCPU):
+    def compile_operations(self, loop, guard_op=None):
+        py.test.skip("llsupport test: cannot compile operations")
+
+
+class TestAbstractLLCPU(LLtypeBackendTest):
+
+    # for the individual tests see
+    # ====> ../../test/runner_test.py
+    
+    def setup_class(cls):
+        cls.cpu = MyLLCPU(rtyper=None, stats=FakeStats())