[pypy-svn] r78887 - in pypy/branch/more-asm-debugging/pypy/jit/backend/x86: . test

[fijal at codespeak.net]

Author: fijal
Date: Mon Nov  8 18:23:52 2010
New Revision: 78887

Modified:
   pypy/branch/more-asm-debugging/pypy/jit/backend/x86/assembler.py
   pypy/branch/more-asm-debugging/pypy/jit/backend/x86/test/test_runner.py
Log:
implement a checksum feature, to be able to gdb on exact loop
(not sure how this is useful, but let's see)


Modified: pypy/branch/more-asm-debugging/pypy/jit/backend/x86/assembler.py
==============================================================================
--- pypy/branch/more-asm-debugging/pypy/jit/backend/x86/assembler.py	(original)
+++ pypy/branch/more-asm-debugging/pypy/jit/backend/x86/assembler.py	Mon Nov  8 18:23:52 2010
@@ -303,6 +303,7 @@
                _x86_frame_depth
                _x86_param_depth
                _x86_arglocs
+               _x86_debug_checksum
         """
         if not we_are_translated():
             # Arguments should be unique
@@ -312,7 +313,7 @@
         funcname = self._find_debug_merge_point(operations)
         if log:
             self._register_counter()
-            operations = self._inject_debugging_code(operations)
+            operations = self._inject_debugging_code(looptoken, operations)
         
         regalloc = RegAlloc(self, self.cpu.translate_support_code)
         arglocs = regalloc.prepare_loop(inputargs, operations, looptoken)
@@ -350,7 +351,7 @@
         funcname = self._find_debug_merge_point(operations)
         if log:
             self._register_counter()
-            operations = self._inject_debugging_code(operations)
+            operations = self._inject_debugging_code(looptoken, operations)
 
         arglocs = self.rebuild_faillocs_from_descr(
             faildescr._x86_failure_recovery_bytecode)
@@ -432,9 +433,13 @@
 
         mc.done()
 
-    def _inject_debugging_code(self, operations):
+    def _inject_debugging_code(self, looptoken, operations):
         if self._debug:
             # before doing anything, let's increase a counter
+            s = 0
+            for op in operations:
+                s += op.getopnum()
+            looptoken._x86_debug_checksum = s
             c_adr = ConstInt(rffi.cast(lltype.Signed,
                                      self.loop_run_counters[-1][1]))
             box = BoxInt()

Modified: pypy/branch/more-asm-debugging/pypy/jit/backend/x86/test/test_runner.py
==============================================================================
--- pypy/branch/more-asm-debugging/pypy/jit/backend/x86/test/test_runner.py	(original)
+++ pypy/branch/more-asm-debugging/pypy/jit/backend/x86/test/test_runner.py	Mon Nov  8 18:23:52 2010
@@ -515,3 +515,20 @@
         self.cpu.finish_once()
         lines = py.path.local(self.logfile + ".count").readlines()
         assert lines[0] == '0:10\n'  # '10      xyz\n'
+
+    def test_debugger_checksum(self):
+        loop = """
+        [i0]
+        debug_merge_point('xyz', 0)
+        i1 = int_add(i0, 1)
+        i2 = int_ge(i1, 10)
+        guard_false(i2) []
+        jump(i1)
+        """
+        ops = parse(loop)
+        self.cpu.assembler.set_debug(True)
+        self.cpu.compile_loop(ops.inputargs, ops.operations, ops.token)
+        self.cpu.set_future_value_int(0, 0)
+        self.cpu.execute_token(ops.token)
+        assert ops.token._x86_debug_checksum == sum([op.getopnum()
+                                                     for op in ops.operations])