Author: Armin Rigo <ar...@tunes.org>
Branch: 32ptr-on-64bit
Changeset: r51660:6687f847a628
Date: 2012-01-22 20:16 +0100
http://bitbucket.org/pypy/pypy/changeset/6687f847a628/
Log: This part of the code lost during the merge belongs to rewrite.py.
Save it there for now, commented out.
diff --git a/pypy/jit/backend/llsupport/rewrite.py
b/pypy/jit/backend/llsupport/rewrite.py
--- a/pypy/jit/backend/llsupport/rewrite.py
+++ b/pypy/jit/backend/llsupport/rewrite.py
@@ -326,3 +326,58 @@
# assume that "self.gc_ll_descr.minimal_size_in_nursery" is 2 WORDs
size = max(size, 2 * WORD)
return (size + WORD-1) & ~(WORD-1) # round up
+
+
+if 0:
+ # ---------- compressptr support ----------
+ descr = op.getdescr()
+ if (self.supports_compressed_ptrs and
+ (isinstance(descr, GcPtrHidden32FieldDescr) or
+ isinstance(descr, GcPtrHidden32ArrayDescr))):
+ num = op.getopnum()
+ if (num == rop.GETFIELD_GC or
+ num == rop.GETFIELD_GC_PURE or
+ num == rop.GETARRAYITEM_GC or
+ num == rop.GETARRAYITEM_GC_PURE):
+ v1 = BoxInt()
+ v2 = op.result
+ newops.append(op.copy_and_change(num, result=v1))
+ op = ResOperation(rop.SHOW_FROM_PTR32, [v1], v2)
+ elif num == rop.SETFIELD_GC or num == rop.SETFIELD_RAW:
+ v1 = op.getarg(1)
+ v2 = BoxInt()
+ newops.append(ResOperation(rop.HIDE_INTO_PTR32, [v1], v2))
+ op = op.copy_and_change(num, args=[op.getarg(0), v2])
+ elif num == rop.SETARRAYITEM_GC or num == rop.SETARRAYITEM_RAW:
+ v1 = op.getarg(2)
+ v2 = BoxInt()
+ newops.append(ResOperation(rop.HIDE_INTO_PTR32, [v1], v2))
+ op = op.copy_and_change(num, args=[op.getarg(0),
+ op.getarg(1), v2])
+ elif num == rop.ARRAYLEN_GC or num == rop.NEW_ARRAY:
+ # although these operations operate on a
+ # GcArray(HiddenGcRef32), there is no actual
+ # HiddenGcRef32 argument or result
+ pass
+ else:
+ raise AssertionError(op)
+ elif (self.supports_compressed_ptrs and
+ isinstance(descr, BaseCallDescr)):
+ args = op.getarglist()
+ arg_classes = descr.get_arg_types()
+ fixed = 1
+ assert len(args) == fixed + len(arg_classes)
+ for i in range(len(arg_classes)):
+ if arg_classes[i] == 'H':
+ v1 = args[fixed + i]
+ v2 = BoxInt()
+ newops.append(ResOperation(rop.HIDE_INTO_PTR32,
+ [v1], v2))
+ args[fixed + i] = v2
+ op = op.copy_and_change(op.getopnum(), args=args)
+ if descr.get_return_type() == 'H':
+ v1 = BoxInt()
+ v2 = op.result
+ newops.append(op.copy_and_change(op.getopnum(), result=v1))
+ op = ResOperation(rop.SHOW_FROM_PTR32, [v1], v2)
+ # ----------
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