Author: hager <[email protected]>
Branch: ppc-jit-backend
Changeset: r46883:500d9ed3d490
Date: 2011-08-29 14:54 +0200
http://bitbucket.org/pypy/pypy/changeset/500d9ed3d490/
Log: Implemented STRLEN, STRGETITEM, STRSETITEM. Works for
test_basic_string, but is not complete yet.
diff --git a/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
b/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
--- a/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
+++ b/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
@@ -8,7 +8,8 @@
from pypy.jit.metainterp.history import Const, ConstPtr
from pypy.jit.backend.llsupport.asmmemmgr import BlockBuilderMixin
from pypy.jit.backend.llsupport.asmmemmgr import AsmMemoryManager
-from pypy.rpython.lltypesystem import lltype, rffi
+from pypy.jit.backend.llsupport import symbolic
+from pypy.rpython.lltypesystem import lltype, rffi, rstr
from pypy.jit.metainterp.resoperation import rop
from pypy.jit.metainterp.history import BoxInt, ConstInt, Box
@@ -1171,6 +1172,10 @@
self.li(free_reg, 0)
self.adde(free_reg, free_reg, free_reg)
+ # *************************************************
+ # FIELD AND ARRAY OPS *
+ # *************************************************
+
def emit_setfield_gc(self, op, cpu):
args = op.getarglist()
fptr = args[0]
@@ -1336,6 +1341,50 @@
def emit_getarrayitem_gc_pure(self, op, cpu):
self.emit_getarrayitem_gc(op, cpu)
+ def emit_strlen(self, op, cpu):
+ args = op.getarglist()
+ base_box = args[0]
+ base_reg = cpu.reg_map[base_box]
+ free_reg = cpu.next_free_register
+ if IS_PPC_32:
+ self.lwz(free_reg, base_reg, 4)
+ else:
+ assert 0, "not implemented yet"
+ result = op.result
+ cpu.reg_map[result] = free_reg
+ cpu.next_free_register += 1
+
+ def emit_strgetitem(self, op, cpu):
+ args = op.getarglist()
+ ptr_box = args[0]
+ offset_box = args[1]
+ ptr_reg = cpu.reg_map[ptr_box]
+ offset_reg = cpu.reg_map[offset_box]
+ free_reg = cpu.next_free_register
+ basesize, itemsize, _ = symbolic.get_array_token(rstr.STR,
+ cpu.translate_support_code)
+ assert itemsize == 1
+ self.addi(ptr_reg, ptr_reg, basesize)
+ self.lbzx(free_reg, ptr_reg, offset_reg)
+ result = op.result
+ cpu.reg_map[result] = free_reg
+ cpu.next_free_register += 1
+
+ def emit_strsetitem(self, op, cpu):
+ args = op.getarglist()
+ ptr_box = args[0]
+ offset_box = args[1]
+ value_box = args[2]
+
+ ptr_reg = cpu.reg_map[ptr_box]
+ offset_reg = cpu.reg_map[offset_box]
+ value_reg = cpu.reg_map[value_box]
+ basesize, itemsize, _ = symbolic.get_array_token(rstr.STR,
+ cpu.translate_support_code)
+ assert itemsize == 1
+ self.addi(ptr_reg, ptr_reg, basesize)
+ self.stbx(value_reg, ptr_reg, offset_reg)
+
############################
# unary integer operations #
############################
@@ -1463,6 +1512,8 @@
self.mfcr(free_reg)
self.rlwinm(free_reg, free_reg, 4, 31, 31)
+ #_____________________________________
+
def emit_finish(self, op, cpu):
descr = op.getdescr()
identifier = self._get_identifier_from_descr(descr, cpu)
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