[pypy-commit] pypy libgccjit-backend: Get test_cast_int_to_ptr and test_cast_ptr_to_int to pass

[dmalcolm]

Author: David Malcolm <dmalcolm at redhat.com>
Branch: libgccjit-backend
Changeset: r75093:4c394d19f7b9
Date: 2014-12-23 16:25 -0500
http://bitbucket.org/pypy/pypy/changeset/4c394d19f7b9/

Log:	Get test_cast_int_to_ptr and test_cast_ptr_to_int to pass

diff --git a/rpython/jit/backend/libgccjit/assembler.py b/rpython/jit/backend/libgccjit/assembler.py
--- a/rpython/jit/backend/libgccjit/assembler.py
+++ b/rpython/jit/backend/libgccjit/assembler.py
@@ -849,7 +849,7 @@
     def emit_float_abs(self, resop):
         self._impl_float_unaryop(resop, self.lib.GCC_JIT_UNARY_OP_ABS)
 
-    # "CAST_" operations:
+    # "CAST_" operations for "FLOAT":
     def emit_cast_float_to_int(self, resop):
         rvalue = self.expr_to_rvalue(resop._arg0)
         lvalres = self.expr_to_lvalue(resop.result)
@@ -967,6 +967,28 @@
     def emit_int_invert(self, resop):
         self._impl_int_unaryop(resop, self.lib.GCC_JIT_UNARY_OP_BITWISE_NEGATE)
 
+    # "CAST_" operations for "INT" vs "PTR":
+    def emit_cast_ptr_to_int(self, resop):
+        rvalue_in = self.expr_to_rvalue(resop._arg0)
+        lvalue_tmp = self.fn.new_local(self.t_any, "tmp")
+        lvalue_result = self.expr_to_lvalue(resop.result)
+        self.b_current.add_assignment(
+            lvalue_tmp.access_field(self.u_ptr),
+            rvalue_in)
+        self.b_current.add_assignment(
+            lvalue_result,
+            lvalue_tmp.as_rvalue().access_field(self.u_signed))
+    def emit_cast_int_to_ptr(self, resop):
+        rvalue_in = self.expr_to_rvalue(resop._arg0)
+        lvalue_tmp = self.fn.new_local(self.t_any, "tmp")
+        lvalue_result = self.expr_to_lvalue(resop.result)
+        self.b_current.add_assignment(
+            lvalue_tmp.access_field(self.u_signed),
+            rvalue_in)
+        self.b_current.add_assignment(
+            lvalue_result,
+            lvalue_tmp.as_rvalue().access_field(self.u_ptr))
+
     #
 
     def impl_get_lvalue_at_offset_from_ptr(self, ptr_expr, ll_offset, t_field):
diff --git a/rpython/jit/backend/libgccjit/rffi_bindings.py b/rpython/jit/backend/libgccjit/rffi_bindings.py
--- a/rpython/jit/backend/libgccjit/rffi_bindings.py
+++ b/rpython/jit/backend/libgccjit/rffi_bindings.py
@@ -356,6 +356,11 @@
                                              self.GCC_JIT_LOCATION_P,
                                              self.GCC_JIT_FIELD_P]),
 
+            (self.GCC_JIT_RVALUE_P,
+             'gcc_jit_rvalue_access_field', [self.GCC_JIT_RVALUE_P,
+                                             self.GCC_JIT_LOCATION_P,
+                                             self.GCC_JIT_FIELD_P]),
+
             (self.GCC_JIT_LVALUE_P,
              'gcc_jit_rvalue_dereference_field', [self.GCC_JIT_RVALUE_P,
                                                   self.GCC_JIT_LOCATION_P,
@@ -859,6 +864,14 @@
                     self,
                     self.lib.gcc_jit_rvalue_get_type(self.inner_rvalue))
 
+    def access_field(self, field):
+        return RValue(self.lib,
+                      self,
+                      self.lib.gcc_jit_rvalue_access_field(
+                          self.inner_rvalue,
+                          self.lib.null_location_ptr,
+                          field.inner_field))
+
     def dereference_field(self, field):
         return LValue(self.lib,
                       self,