Author: Alex Gaynor <alex.gay...@gmail.com>
Branch: 
Changeset: r45336:6d1937f2d0a9
Date: 2011-07-04 07:51 -0700
http://bitbucket.org/pypy/pypy/changeset/6d1937f2d0a9/

Log:    Merged upstream.

diff --git a/pypy/jit/metainterp/optimizeopt/fficall.py 
b/pypy/jit/metainterp/optimizeopt/fficall.py
--- a/pypy/jit/metainterp/optimizeopt/fficall.py
+++ b/pypy/jit/metainterp/optimizeopt/fficall.py
@@ -4,7 +4,7 @@
 from pypy.rlib.debug import debug_start, debug_stop, debug_print, 
have_debug_prints
 from pypy.jit.codewriter.effectinfo import EffectInfo
 from pypy.jit.metainterp.resoperation import rop, ResOperation
-from pypy.jit.metainterp.optimizeopt.util import _findall
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method
 from pypy.jit.metainterp.optimizeopt.optimizer import Optimization
 from pypy.jit.backend.llsupport.ffisupport import UnsupportedKind
 
@@ -203,13 +203,7 @@
     def propagate_forward(self, op):
         if self.logops is not None:
             debug_print(self.logops.repr_of_resop(op))
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.emit_operation(op)
+        dispatch_opt(self, op)
 
     def _get_oopspec(self, op):
         effectinfo = op.getdescr().get_extra_info()
@@ -220,4 +214,5 @@
     def _get_funcval(self, op):
         return self.getvalue(op.getarg(1))
 
-optimize_ops = _findall(OptFfiCall, 'optimize_')
+dispatch_opt = make_dispatcher_method(OptFfiCall, 'optimize_',
+        default=OptFfiCall.emit_operation)
diff --git a/pypy/jit/metainterp/optimizeopt/heap.py 
b/pypy/jit/metainterp/optimizeopt/heap.py
--- a/pypy/jit/metainterp/optimizeopt/heap.py
+++ b/pypy/jit/metainterp/optimizeopt/heap.py
@@ -1,5 +1,5 @@
 import os
-from pypy.jit.metainterp.optimizeopt.util import _findall
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method
 from pypy.jit.metainterp.resoperation import rop, ResOperation
 from pypy.rlib.objectmodel import we_are_translated
 from pypy.jit.metainterp.jitexc import JitException
@@ -431,13 +431,7 @@
         self._seen_guard_not_invalidated = True
         self.emit_operation(op)
 
-    def propagate_forward(self, op):
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.emit_operation(op)
 
-optimize_ops = _findall(OptHeap, 'optimize_')
+dispatch_opt = make_dispatcher_method(OptHeap, 'optimize_',
+        default=OptHeap.emit_operation)
+OptHeap.propagate_forward = dispatch_opt
diff --git a/pypy/jit/metainterp/optimizeopt/intbounds.py 
b/pypy/jit/metainterp/optimizeopt/intbounds.py
--- a/pypy/jit/metainterp/optimizeopt/intbounds.py
+++ b/pypy/jit/metainterp/optimizeopt/intbounds.py
@@ -1,5 +1,5 @@
 from pypy.jit.metainterp.optimizeopt.optimizer import Optimization, CONST_1, 
CONST_0
-from pypy.jit.metainterp.optimizeopt.util import _findall
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method
 from pypy.jit.metainterp.optimizeopt.intutils import (IntBound, IntUnbounded,
     IntLowerBound, IntUpperBound)
 from pypy.jit.metainterp.history import Const, ConstInt
@@ -34,14 +34,11 @@
             op = self.posponedop
             self.posponedop = None
 
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            assert not op.is_ovf()
-            self.emit_operation(op)
+        dispatch_opt(self, op)
+
+    def opt_default(self, op):
+        assert not op.is_ovf()
+        self.emit_operation(op)
 
 
     def propagate_bounds_backward(self, box):
@@ -57,11 +54,7 @@
             op = self.optimizer.producer[box]
         except KeyError:
             return
-        opnum = op.getopnum()
-        for value, func in propagate_bounds_ops:
-            if opnum == value:
-                func(self, op)
-                break
+        dispatch_bounds_ops(self, op)
 
     def optimize_GUARD_TRUE(self, op):
         self.emit_operation(op)
@@ -440,5 +433,6 @@
     propagate_bounds_INT_MUL_OVF  = propagate_bounds_INT_MUL
 
 
-optimize_ops = _findall(OptIntBounds, 'optimize_')
-propagate_bounds_ops = _findall(OptIntBounds, 'propagate_bounds_')
+dispatch_opt = make_dispatcher_method(OptIntBounds, 'optimize_',
+        default=OptIntBounds.opt_default)
+dispatch_bounds_ops = make_dispatcher_method(OptIntBounds, 'propagate_bounds_')
diff --git a/pypy/jit/metainterp/optimizeopt/optimizer.py 
b/pypy/jit/metainterp/optimizeopt/optimizer.py
--- a/pypy/jit/metainterp/optimizeopt/optimizer.py
+++ b/pypy/jit/metainterp/optimizeopt/optimizer.py
@@ -4,7 +4,7 @@
 from pypy.jit.metainterp.resoperation import rop, ResOperation
 from pypy.jit.metainterp import jitprof
 from pypy.jit.metainterp.executor import execute_nonspec
-from pypy.jit.metainterp.optimizeopt.util import _findall, sort_descrs
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method, 
sort_descrs
 from pypy.jit.metainterp.optimizeopt.util import descrlist_dict, args_dict
 from pypy.jit.metainterp.optimize import InvalidLoop
 from pypy.jit.metainterp import resume, compile
@@ -434,14 +434,7 @@
 
     def propagate_forward(self, op):
         self.producer[op.result] = op
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.optimize_default(op)
-        #print '\n'.join([str(o) for o in self.newoperations]) + '\n---\n'
+        dispatch_opt(self, op)
 
     def test_emittable(self, op):
         return True
@@ -569,7 +562,8 @@
     def optimize_DEBUG_MERGE_POINT(self, op):
         self.emit_operation(op)
 
-optimize_ops = _findall(Optimizer, 'optimize_')
+dispatch_opt = make_dispatcher_method(Optimizer, 'optimize_',
+        default=Optimizer.optimize_default)
 
 
 
diff --git a/pypy/jit/metainterp/optimizeopt/rewrite.py 
b/pypy/jit/metainterp/optimizeopt/rewrite.py
--- a/pypy/jit/metainterp/optimizeopt/rewrite.py
+++ b/pypy/jit/metainterp/optimizeopt/rewrite.py
@@ -1,7 +1,7 @@
 from pypy.jit.metainterp.optimizeopt.optimizer import *
 from pypy.jit.metainterp.resoperation import opboolinvers, opboolreflex
 from pypy.jit.metainterp.history import ConstInt
-from pypy.jit.metainterp.optimizeopt.util import _findall
+from pypy.jit.metainterp.optimizeopt.util import _findall, 
make_dispatcher_method
 from pypy.jit.metainterp.resoperation import rop, ResOperation
 from pypy.jit.codewriter.effectinfo import EffectInfo
 from pypy.jit.metainterp.optimizeopt.intutils import IntBound
@@ -21,18 +21,13 @@
         if self.find_rewritable_bool(op, args):
             return
 
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.emit_operation(op)
+        dispatch_opt(self, op)
 
     def test_emittable(self, op):
         opnum = op.getopnum()
-        for value, func in optimize_guards:
+        for value, cls, func in optimize_guards:
             if opnum == value:
+                assert isinstance(op, cls)
                 try:
                     func(self, op, dryrun=True)
                     return self.is_emittable(op)
@@ -477,5 +472,6 @@
         self.emit_operation(op)
 
 
-optimize_ops = _findall(OptRewrite, 'optimize_')
+dispatch_opt = make_dispatcher_method(OptRewrite, 'optimize_',
+        default=OptRewrite.emit_operation)
 optimize_guards = _findall(OptRewrite, 'optimize_', 'GUARD')
diff --git a/pypy/jit/metainterp/optimizeopt/simplify.py 
b/pypy/jit/metainterp/optimizeopt/simplify.py
--- a/pypy/jit/metainterp/optimizeopt/simplify.py
+++ b/pypy/jit/metainterp/optimizeopt/simplify.py
@@ -1,7 +1,7 @@
 
 from pypy.jit.metainterp.resoperation import ResOperation, rop
 from pypy.jit.metainterp.optimizeopt.optimizer import Optimization
-from pypy.jit.metainterp.optimizeopt.util import _findall
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method
 
 class OptSimplify(Optimization):
     def optimize_CALL_PURE(self, op):
@@ -25,13 +25,7 @@
         #     but it's a bit hard to implement robustly if heap.py is also run
         pass
 
-    def propagate_forward(self, op):
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.emit_operation(op)
 
-optimize_ops = _findall(OptSimplify, 'optimize_')
+dispatch_opt = make_dispatcher_method(OptSimplify, 'optimize_',
+        default=OptSimplify.emit_operation)
+OptSimplify.propagate_forward = dispatch_opt
diff --git a/pypy/jit/metainterp/optimizeopt/util.py 
b/pypy/jit/metainterp/optimizeopt/util.py
--- a/pypy/jit/metainterp/optimizeopt/util.py
+++ b/pypy/jit/metainterp/optimizeopt/util.py
@@ -20,9 +20,25 @@
         if op_prefix and not name.startswith(op_prefix):
             continue
         if hasattr(Class, name_prefix + name):
-            result.append((value, getattr(Class, name_prefix + name)))
+            opclass = resoperation.opclasses[getattr(rop, name)]
+            print value, name, opclass
+            result.append((value, opclass, getattr(Class, name_prefix + name)))
     return unrolling_iterable(result)
 
+def make_dispatcher_method(Class, name_prefix, op_prefix=None, default=None):
+    ops = _findall(Class, name_prefix, op_prefix)
+    def dispatch(self, op, *args):
+        opnum = op.getopnum()
+        for value, cls, func in ops:
+            if opnum == value:
+                assert isinstance(op, cls)
+                return func(self, op, *args)
+        if default:
+            return default(self, op, *args)
+    dispatch.func_name = "dispatch_" + name_prefix
+    return dispatch
+
+
 def partition(array, left, right):
     last_item = array[right]
     pivot = last_item.sort_key()
diff --git a/pypy/jit/metainterp/optimizeopt/virtualize.py 
b/pypy/jit/metainterp/optimizeopt/virtualize.py
--- a/pypy/jit/metainterp/optimizeopt/virtualize.py
+++ b/pypy/jit/metainterp/optimizeopt/virtualize.py
@@ -1,7 +1,7 @@
 from pypy.jit.metainterp.history import Const, ConstInt, BoxInt
 from pypy.jit.metainterp.resoperation import rop, ResOperation
-from pypy.jit.metainterp.optimizeopt.util import _findall, sort_descrs
-from pypy.jit.metainterp.optimizeopt.util import descrlist_dict
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method
+from pypy.jit.metainterp.optimizeopt.util import descrlist_dict, sort_descrs
 from pypy.rlib.objectmodel import we_are_translated
 from pypy.jit.metainterp.optimizeopt import optimizer
 from pypy.jit.metainterp.executor import execute
@@ -456,13 +456,8 @@
         ###self.heap_op_optimizer.optimize_SETARRAYITEM_GC(op, value, 
fieldvalue)
         self.emit_operation(op)
 
-    def propagate_forward(self, op):
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.emit_operation(op)
 
-optimize_ops = _findall(OptVirtualize, 'optimize_')
+dispatch_opt = make_dispatcher_method(OptVirtualize, 'optimize_',
+        default=OptVirtualize.emit_operation)
+
+OptVirtualize.propagate_forward = dispatch_opt
diff --git a/pypy/jit/metainterp/optimizeopt/vstring.py 
b/pypy/jit/metainterp/optimizeopt/vstring.py
--- a/pypy/jit/metainterp/optimizeopt/vstring.py
+++ b/pypy/jit/metainterp/optimizeopt/vstring.py
@@ -8,7 +8,7 @@
 from pypy.jit.metainterp.optimizeopt import optimizer, virtualize
 from pypy.jit.metainterp.optimizeopt.optimizer import CONST_0, CONST_1
 from pypy.jit.metainterp.optimizeopt.optimizer import llhelper
-from pypy.jit.metainterp.optimizeopt.util import _findall
+from pypy.jit.metainterp.optimizeopt.util import make_dispatcher_method
 from pypy.jit.codewriter.effectinfo import EffectInfo
 from pypy.jit.codewriter import heaptracker
 from pypy.rlib.unroll import unrolling_iterable
@@ -649,16 +649,11 @@
             self.emit_operation(op)
             return
 
-        opnum = op.getopnum()
-        for value, func in optimize_ops:
-            if opnum == value:
-                func(self, op)
-                break
-        else:
-            self.emit_operation(op)
+        dispatch_opt(self, op)
 
 
-optimize_ops = _findall(OptString, 'optimize_')
+dispatch_opt = make_dispatcher_method(OptString, 'optimize_',
+        default=OptString.emit_operation)
 
 def _findall_call_oopspec():
     prefix = 'opt_call_stroruni_'
diff --git a/pypy/translator/jvm/src/pypy/PyPy.java 
b/pypy/translator/jvm/src/pypy/PyPy.java
--- a/pypy/translator/jvm/src/pypy/PyPy.java
+++ b/pypy/translator/jvm/src/pypy/PyPy.java
@@ -969,7 +969,10 @@
         // XXX: this is really a quick hack to make things work.
         // it should disappear, because this function is not
         // supported by ootypesystem.
-        return Double.toString(d); // XXX: we are ignoring "format"
+        DecimalFormat format = new DecimalFormat("0.###");
+        format.setMinimumFractionDigits(precision);
+        format.setMaximumFractionDigits(precision);
+        return format.format(d);
     }
 
     // ----------------------------------------------------------------------
diff --git a/pypy/translator/jvm/test/test_float.py 
b/pypy/translator/jvm/test/test_float.py
--- a/pypy/translator/jvm/test/test_float.py
+++ b/pypy/translator/jvm/test/test_float.py
@@ -22,3 +22,14 @@
 
     def test_r_singlefloat(self):
         py.test.skip("not implemented: single-precision floats")
+
+    def test_format_float(self):
+        from pypy.rlib.rfloat import _formatd
+        def fn(precision):
+            return _formatd(10.01, 'd', precision, 0)
+
+        res = self.interpret(fn, [2])
+        assert res == "10.01"
+
+        res = self.interpret(fn, [1])
+        assert res == "10.0"
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