Author: David Schneider <david.schnei...@picle.org>
Branch: ppc-jit-backend
Changeset: r51295:6a95268fe8c5
Date: 2012-01-13 02:32 -0800
http://bitbucket.org/pypy/pypy/changeset/6a95268fe8c5/
Log: (edelsohn, bivab): Implement get_ and set_ interiorfileld operations
diff --git a/pypy/jit/backend/ppc/ppcgen/opassembler.py
b/pypy/jit/backend/ppc/ppcgen/opassembler.py
--- a/pypy/jit/backend/ppc/ppcgen/opassembler.py
+++ b/pypy/jit/backend/ppc/ppcgen/opassembler.py
@@ -537,6 +537,54 @@
emit_getfield_raw_pure = emit_getfield_gc
emit_getfield_gc_pure = emit_getfield_gc
+ def emit_getinteriorfield_gc(self, op, arglocs, regalloc):
+ (base_loc, index_loc, res_loc,
+ ofs_loc, ofs, itemsize, fieldsize) = arglocs
+ self.mc.load_imm(r.SCRATCH, itemsize.value)
+ self.mc.mullw(r.SCRATCH.value, index_loc.value, r.SCRATCH.value)
+ if ofs.value > 0:
+ if ofs_loc.is_imm():
+ self.mc.addic(r.SCRATCH.value, r.SCRATCH.value, ofs_loc.value)
+ else:
+ self.mc.add(r.SCRATCH.value, r.SCRATCH.value, ofs_loc.value)
+
+ if fieldsize.value == 8:
+ self.mc.ldx(res_loc.value, base_loc.value, r.SCRATCH.value)
+ elif fieldsize.value == 4:
+ self.mc.lwzx(res_loc.value, base_loc.value, r.SCRATCH.value)
+ elif fieldsize.value == 2:
+ self.mc.lhzx(res_loc.value, base_loc.value, r.SCRATCH.value)
+ elif fieldsize.value == 1:
+ self.mc.lbzx(res_loc.value, base_loc.value, r.SCRATCH.value)
+ else:
+ assert 0
+
+ #XXX Hack, Hack, Hack
+ if not we_are_translated():
+ signed = op.getdescr().fielddescr.is_field_signed()
+ self._ensure_result_bit_extension(res_loc, fieldsize.value, signed)
+
+ def emit_setinteriorfield_gc(self, op, arglocs, regalloc):
+ (base_loc, index_loc, value_loc,
+ ofs_loc, ofs, itemsize, fieldsize) = arglocs
+ self.mc.load_imm(r.SCRATCH, itemsize.value)
+ self.mc.mullw(r.SCRATCH.value, index_loc.value, r.SCRATCH.value)
+ if ofs.value > 0:
+ if ofs_loc.is_imm():
+ self.mc.addic(r.SCRATCH.value, r.SCRATCH.value, ofs_loc.value)
+ else:
+ self.mc.add(r.SCRATCH.value, r.SCRATCH.value, ofs_loc.value)
+ if fieldsize.value == 8:
+ self.mc.stdx(value_loc.value, base_loc.value, r.SCRATCH.value)
+ elif fieldsize.value == 4:
+ self.mc.stwx(value_loc.value, base_loc.value, r.SCRATCH.value)
+ elif fieldsize.value == 2:
+ self.mc.sthx(value_loc.value, base_loc.value, r.SCRATCH.value)
+ elif fieldsize.value == 1:
+ self.mc.stbx(value_loc.value, base_loc.value, r.SCRATCH.value)
+ else:
+ assert 0
+
class ArrayOpAssembler(object):
diff --git a/pypy/jit/backend/ppc/ppcgen/regalloc.py
b/pypy/jit/backend/ppc/ppcgen/regalloc.py
--- a/pypy/jit/backend/ppc/ppcgen/regalloc.py
+++ b/pypy/jit/backend/ppc/ppcgen/regalloc.py
@@ -602,6 +602,46 @@
prepare_getfield_raw_pure = prepare_getfield_gc
prepare_getfield_gc_pure = prepare_getfield_gc
+ def prepare_getinteriorfield_gc(self, op):
+ t = unpack_interiorfielddescr(op.getdescr())
+ ofs, itemsize, fieldsize, sign = t
+ args = op.getarglist()
+ base_loc, base_box = self._ensure_value_is_boxed(op.getarg(0), args)
+ index_loc, index_box = self._ensure_value_is_boxed(op.getarg(1), args)
+ c_ofs = ConstInt(ofs)
+ if _check_imm_arg(c_ofs):
+ ofs_loc = imm(ofs)
+ else:
+ ofs_loc, ofs_box = self._ensure_value_is_boxed(c_ofs, [base_box])
+ self.possibly_free_var(ofs_box)
+ self.possibly_free_vars_for_op(op)
+ self.possibly_free_var(base_box)
+ self.possibly_free_var(index_box)
+ self.free_temp_vars()
+ result_loc = self.force_allocate_reg(op.result)
+ self.possibly_free_var(op.result)
+ return [base_loc, index_loc, result_loc, ofs_loc, imm(ofs),
+ imm(itemsize), imm(fieldsize)]
+
+ def prepare_setinteriorfield_gc(self, op):
+ t = unpack_interiorfielddescr(op.getdescr())
+ ofs, itemsize, fieldsize, sign = t
+ args = op.getarglist()
+ base_loc, base_box = self._ensure_value_is_boxed(op.getarg(0), args)
+ index_loc, index_box = self._ensure_value_is_boxed(op.getarg(1), args)
+ value_loc, value_box = self._ensure_value_is_boxed(op.getarg(2), args)
+ c_ofs = ConstInt(ofs)
+ if _check_imm_arg(c_ofs):
+ ofs_loc = imm(ofs)
+ else:
+ ofs_loc, ofs_box = self._ensure_value_is_boxed(c_ofs, [base_box])
+ self.possibly_free_var(ofs_box)
+ self.possibly_free_var(base_box)
+ self.possibly_free_var(index_box)
+ self.possibly_free_var(value_box)
+ return [base_loc, index_loc, value_loc, ofs_loc, imm(ofs),
+ imm(itemsize), imm(fieldsize)]
+
def prepare_arraylen_gc(self, op):
arraydescr = op.getdescr()
assert isinstance(arraydescr, ArrayDescr)
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