Mercurial > hg > truffle

diff src/cpu/x86/vm/templateInterpreter_x86_32.cpp @ 7402:fd74228fd5ca

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing. Summary: Move _max_locals and _size_of_parameters to ConstMethod for better sharing. Reviewed-by: coleenp, minqi, jrose
author jiangli
date Tue, 11 Dec 2012 12:41:31 -0500
parents cd3d6a6b95d9
children db9981fd3124
line wrap: on
line diff
--- a/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Fri Dec 07 10:55:16 2012 -0800
+++ b/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Tue Dec 11 12:41:31 2012 -0500
@@ -424,8 +424,6 @@
   // C++ interpreter only
   // rsi - previous interpreter state pointer
 
-  const Address size_of_parameters(rbx, Method::size_of_parameters_offset());
-
   // InterpreterRuntime::frequency_counter_overflow takes one argument
   // indicating if the counter overflow occurs at a backwards branch (non-NULL bcp).
   // The call returns the address of the verified entry point for the method or NULL
@@ -868,12 +866,13 @@
   // rsi: previous interpreter state (C++ interpreter) must preserve
   address entry_point = __ pc();
 
-
-  const Address size_of_parameters(rbx, Method::size_of_parameters_offset());
+  const Address constMethod       (rbx, Method::const_offset());
   const Address invocation_counter(rbx, Method::invocation_counter_offset() + InvocationCounter::counter_offset());
   const Address access_flags      (rbx, Method::access_flags_offset());
+  const Address size_of_parameters(rcx, ConstMethod::size_of_parameters_offset());
 
   // get parameter size (always needed)
+  __ movptr(rcx, constMethod);
   __ load_unsigned_short(rcx, size_of_parameters);
 
   // native calls don't need the stack size check since they have no expression stack
@@ -988,7 +987,9 @@
 
   // allocate space for parameters
   __ get_method(method);
-  __ load_unsigned_short(t, Address(method, Method::size_of_parameters_offset()));
+  __ movptr(t, Address(method, Method::const_offset()));
+  __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset()));
+
   __ shlptr(t, Interpreter::logStackElementSize);
   __ addptr(t, 2*wordSize);     // allocate two more slots for JNIEnv and possible mirror
   __ subptr(rsp, t);
@@ -1297,13 +1298,14 @@
   // rsi: sender sp
   address entry_point = __ pc();
 
-
-  const Address size_of_parameters(rbx, Method::size_of_parameters_offset());
-  const Address size_of_locals    (rbx, Method::size_of_locals_offset());
+  const Address constMethod       (rbx, Method::const_offset());
   const Address invocation_counter(rbx, Method::invocation_counter_offset() + InvocationCounter::counter_offset());
   const Address access_flags      (rbx, Method::access_flags_offset());
+  const Address size_of_parameters(rdx, ConstMethod::size_of_parameters_offset());
+  const Address size_of_locals    (rdx, ConstMethod::size_of_locals_offset());
 
   // get parameter size (always needed)
+  __ movptr(rdx, constMethod);
   __ load_unsigned_short(rcx, size_of_parameters);
 
   // rbx,: Method*
@@ -1734,7 +1736,8 @@
 
     // Compute size of arguments for saving when returning to deoptimized caller
     __ get_method(rax);
-    __ load_unsigned_short(rax, Address(rax, in_bytes(Method::size_of_parameters_offset())));
+    __ movptr(rax, Address(rax, Method::const_offset()));
+    __ load_unsigned_short(rax, Address(rax, ConstMethod::size_of_parameters_offset()));
     __ shlptr(rax, Interpreter::logStackElementSize);
     __ restore_locals();
     __ subptr(rdi, rax);