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Maciej Fijalkowski committed 85ccfa8 Merge

(fijal, reviewed by agaynor) Merge string-promote-2 branch. This branch lets
you promote strings by value by using jit.promote_string(s). It's used in
typeobject for promoting getattr on types.

Comments (0)

Files changed (9)

pypy/jit/codewriter/jtransform.py

             # the special return value None forces op.result to be considered
             # equal to op.args[0]
             return [op0, op1, None]
+        if (hints.get('promote_string') and
+            op.args[0].concretetype is not lltype.Void):
+            S = lltype.Ptr(rstr.STR)
+            assert op.args[0].concretetype == S
+            self._register_extra_helper(EffectInfo.OS_STREQ_NONNULL,
+                                        "str.eq_nonnull",
+                                        [S, S],
+                                        lltype.Signed,
+                                        EffectInfo.EF_ELIDABLE_CANNOT_RAISE)
+            descr, p = self.callcontrol.callinfocollection.callinfo_for_oopspec(
+                EffectInfo.OS_STREQ_NONNULL)
+            # XXX this is fairly ugly way of creating a constant,
+            #     however, callinfocollection has no better interface
+            c = Constant(p.adr.ptr, lltype.typeOf(p.adr.ptr))
+            op1 = SpaceOperation('str_guard_value', [op.args[0], c, descr],
+                                 op.result)
+            return [SpaceOperation('-live-', [], None), op1, None]
         else:
             log.WARNING('ignoring hint %r at %r' % (hints, self.graph))
 

pypy/jit/codewriter/test/test_jtransform.py

             if i == oopspecindex:
                 return True
         return False
+    def callinfo_for_oopspec(self, oopspecindex):
+        assert oopspecindex == effectinfo.EffectInfo.OS_STREQ_NONNULL
+        class c:
+            class adr:
+                ptr = 1
+        return ('calldescr', c)
 
 class FakeBuiltinCallControl:
     def __init__(self):
              EI.OS_STR2UNICODE:([PSTR], PUNICODE),
              EI.OS_STR_CONCAT: ([PSTR, PSTR], PSTR),
              EI.OS_STR_SLICE:  ([PSTR, INT, INT], PSTR),
+             EI.OS_STREQ_NONNULL:  ([PSTR, PSTR], INT),
              EI.OS_UNI_CONCAT: ([PUNICODE, PUNICODE], PUNICODE),
              EI.OS_UNI_SLICE:  ([PUNICODE, INT, INT], PUNICODE),
              EI.OS_UNI_EQUAL:  ([PUNICODE, PUNICODE], lltype.Bool),
     assert op1.args[2] == ListOfKind('ref', [v1, v2])
     assert op1.result == v3
 
+def test_str_promote():
+    PSTR = lltype.Ptr(rstr.STR)
+    v1 = varoftype(PSTR)
+    v2 = varoftype(PSTR)
+    op = SpaceOperation('hint',
+                        [v1, Constant({'promote_string': True}, lltype.Void)],
+                        v2)
+    tr = Transformer(FakeCPU(), FakeBuiltinCallControl())
+    op0, op1, _ = tr.rewrite_operation(op)
+    assert op1.opname == 'str_guard_value'
+    assert op1.args[0] == v1
+    assert op1.args[2] == 'calldescr'
+    assert op1.result == v2
+    assert op0.opname == '-live-'
+
 def test_unicode_concat():
     # test that the oopspec is present and correctly transformed
     PSTR = lltype.Ptr(rstr.UNICODE)

pypy/jit/metainterp/blackhole.py

     @arguments("f")
     def bhimpl_float_guard_value(a):
         pass
+    @arguments("r", "i", "d", returns="r")
+    def bhimpl_str_guard_value(a, i, d):
+        return a
 
     @arguments("self", "i")
     def bhimpl_int_push(self, a):

pypy/jit/metainterp/pyjitpl.py

 
     def make_result_of_lastop(self, resultbox):
         got_type = resultbox.type
-        if not we_are_translated():
-            typeof = {'i': history.INT,
-                      'r': history.REF,
-                      'f': history.FLOAT}
-            assert typeof[self.jitcode._resulttypes[self.pc]] == got_type
+        # XXX disabled for now, conflicts with str_guard_value
+        #if not we_are_translated():
+        #    typeof = {'i': history.INT,
+        #              'r': history.REF,
+        #              'f': history.FLOAT}
+        #    assert typeof[self.jitcode._resulttypes[self.pc]] == got_type
         target_index = ord(self.bytecode[self.pc-1])
         if got_type == history.INT:
             self.registers_i[target_index] = resultbox
     def _opimpl_guard_value(self, orgpc, box):
         self.implement_guard_value(orgpc, box)
 
+    @arguments("orgpc", "box", "box", "descr")
+    def opimpl_str_guard_value(self, orgpc, box, funcbox, descr):
+        if isinstance(box, Const):
+            return box     # no promotion needed, already a Const
+        else:
+            constbox = box.constbox()
+            resbox = self.do_residual_call(funcbox, descr, [box, constbox])
+            promoted_box = resbox.constbox()
+            # This is GUARD_VALUE because GUARD_TRUE assumes the existance
+            # of a label when computing resumepc
+            self.generate_guard(rop.GUARD_VALUE, resbox, [promoted_box],
+                                resumepc=orgpc)
+            self.metainterp.replace_box(box, constbox)
+            return constbox
+
     opimpl_int_guard_value = _opimpl_guard_value
     opimpl_ref_guard_value = _opimpl_guard_value
     opimpl_float_guard_value = _opimpl_guard_value

pypy/jit/metainterp/test/test_ajit.py

 from pypy.rlib.jit import (JitDriver, we_are_jitted, hint, dont_look_inside,
     loop_invariant, elidable, promote, jit_debug, assert_green,
     AssertGreenFailed, unroll_safe, current_trace_length, look_inside_iff,
-    isconstant, isvirtual)
+    isconstant, isvirtual, promote_string)
 from pypy.rlib.rarithmetic import ovfcheck
 from pypy.rpython.lltypesystem import lltype, llmemory, rffi
 from pypy.rpython.ootypesystem import ootype

pypy/jit/metainterp/test/test_string.py

 from pypy.jit.codewriter.policy import StopAtXPolicy
 from pypy.jit.metainterp.test.support import LLJitMixin, OOJitMixin
 from pypy.rlib.debug import debug_print
-from pypy.rlib.jit import JitDriver, dont_look_inside, we_are_jitted
+from pypy.rlib.jit import JitDriver, dont_look_inside, we_are_jitted,\
+     promote_string
 from pypy.rlib.rstring import StringBuilder
 from pypy.rpython.ootypesystem import ootype
 
                           'jump': 1, 'int_is_true': 1,
                           'guard_not_invalidated': 1})
 
+    def test_promote_string(self):
+        driver = JitDriver(greens = [], reds = ['n'])
+        
+        def f(n):
+            while n < 21:
+                driver.jit_merge_point(n=n)
+                promote_string(str(n % 3))
+                n += 1
+            return 0
+
+        self.meta_interp(f, [0])
+        self.check_loops(call=3 + 1) # one for int2str
 
 #class TestOOtype(StringTests, OOJitMixin):
 #    CALL = "oosend"

pypy/module/pypyjit/test_pypy_c/test_string.py

             i40 = int_sub(i4, 1)
             --TICK--
             jump(p0, p1, p2, p3, i40, i38, descr=<Loop0>)
-        """)
+        """)
+
+    def test_getattr_promote(self):
+        def main(n):
+            class A(object):
+                def meth_a(self):
+                    return 1
+                def meth_b(self):
+                    return 2
+            a = A()
+
+            l = ['a', 'b']
+            s = 0
+            for i in range(n):
+                name = 'meth_' + l[i & 1]
+                meth = getattr(a, name) # ID: getattr
+                s += meth()
+            return s
+
+        log = self.run(main, [1000])
+        assert log.result == main(1000)
+        loops = log.loops_by_filename(self.filepath)
+        assert len(loops) == 2
+        for loop in loops:
+            loop.match_by_id('getattr','''
+            guard_not_invalidated(descr=...)
+            i32 = strlen(p31)
+            i34 = int_add(5, i32)
+            p35 = newstr(i34)
+            strsetitem(p35, 0, 109)
+            strsetitem(p35, 1, 101)
+            strsetitem(p35, 2, 116)
+            strsetitem(p35, 3, 104)
+            strsetitem(p35, 4, 95)
+            copystrcontent(p31, p35, 0, 5, i32)
+            i49 = call(ConstClass(_ll_2_str_eq_nonnull__rpy_stringPtr_rpy_stringPtr), p35, ConstPtr(ptr48), descr=<SignedCallDescr>)
+            guard_value(i49, 1, descr=<Guard8>)
+            ''')

pypy/objspace/std/typeobject.py

 from pypy.objspace.std import identitydict
 from pypy.rlib.objectmodel import we_are_translated
 from pypy.rlib.objectmodel import current_object_addr_as_int, compute_hash
-from pypy.rlib.jit import promote, elidable_promote, we_are_jitted
+from pypy.rlib.jit import promote, elidable_promote, we_are_jitted,\
+     promote_string
 from pypy.rlib.jit import elidable, dont_look_inside, unroll_safe
 from pypy.rlib.rarithmetic import intmask, r_uint
 
         if version_tag is None:
             tup = w_self._lookup_where(name)
             return tup
+        name = promote_string(name)
         w_class, w_value = w_self._pure_lookup_where_with_method_cache(name, version_tag)
         return w_class, unwrap_cell(space, w_value)
 
     possible arguments are:
 
     * promote - promote the argument from a variable into a constant
+    * promote_string - same, but promote string by *value*
     * access_directly - directly access a virtualizable, as a structure
                         and don't treat it as a virtualizable
     * fresh_virtualizable - means that virtualizable was just allocated.
 def promote(x):
     return hint(x, promote=True)
 
+def promote_string(x):
+    return hint(x, promote_string=True)
+
 def dont_look_inside(func):
     """ Make sure the JIT does not trace inside decorated function
     (it becomes a call instead)