Stackless issue python#283: Concentrate platform code in slp_transfer.c

Remove commented code.

Author: Anselm Kruis

Include/internal/pycore_slp_platformselect.h

@@ -70,9 +70,4 @@
 #define SLP_CSTACK_SUBTRACT(a, b) (b) - (a)
 #endif
 
-#define SLP_CSTACK_SAVE_NOW_to_be_deleted(tstate, stackvar) \
-        ((tstate)->st.cstack_root != NULL ? \
-         SLP_CSTACK_SUBTRACT((tstate)->st.cstack_root, \
-         (intptr_t*)&(stackvar)) > SLP_CSTACK_WATERMARK : 1)
-
 #endif  /* !STACKLESS_SLP_PLATFORM_SELECT_H */

Python/ceval.c

@@ -22,7 +22,6 @@
 #include "setobject.h"
 #include "structmember.h"
 #include "pycore_stackless.h"
-// #include "pycore_slp_platformselect.h" /* for stack saving */
 
 #include <ctype.h>
 

Stackless/core/stacklesseval.c

@@ -8,9 +8,6 @@
 #include "pycore_stackless.h"
 #include "pycore_slp_prickelpit.h"
 
-/* platform specific constants */
-//#include "pycore_slp_platformselect.h"
-
 /* Stackless extension for ceval.c */
 
 
@@ -243,32 +240,6 @@ make_initial_stub(void)
     return result;
 }
 
-//static PyObject *
-//climb_stack_and_eval_frame(PyFrameObject *f)
-//{
-//    /*
-//     * a similar case to climb_stack_and_transfer,
-//     * but here we need to incorporate a gap in the
-//     * stack into main and keep this gap on the stack.
-//     * This way, initial_stub is always valid to be
-//     * used to return to the main c stack.
-//     */
-//    PyThreadState *ts = _PyThreadState_GET();
-//    intptr_t probe;
-//    ptrdiff_t needed = &probe - ts->st.cstack_base;
-//    /* in rare cases, the need might have vanished due to the recursion */
-//    if (needed > 0) {
-//        register void * stack_ptr_tmp = alloca(needed * sizeof(intptr_t));
-//        if (stack_ptr_tmp == NULL)
-//            return NULL;
-//        /* hinder the compiler to optimise away
-//        stack_ptr_tmp and the alloca call.
-//        This happens with gcc 4.7.x and -O2 */
-//        SLP_DO_NOT_OPTIMIZE_AWAY(stack_ptr_tmp);
-//    }
-//    return slp_eval_frame(f);
-//}
-
 static PyObject * slp_frame_dispatch_top(PyObject *retval);
 
 static PyObject *

Stackless/module/scheduling.c

@@ -5,7 +5,6 @@
 
 #ifdef STACKLESS
 #include "pycore_stackless.h"
-// #include "pycore_slp_platformselect.h"  /* for SLP_DO_NOT_OPTIMIZE_AWAY */
 
 /******************************************************
 

Stackless/module/stacklessmodule.c

@@ -7,7 +7,6 @@
 #include "pycore_stackless.h"
 
 #define IMPLEMENT_STACKLESSMODULE
-// #include "pycore_slp_platformselect.h"
 #include "pycore_slp_prickelpit.h"
 #include <stddef.h>  /* for offsetof() */
 

Stackless/pickling/prickelpit.c

@@ -7,9 +7,6 @@
 #include "pycore_stackless.h"
 #include "pycore_slp_prickelpit.h"
 
-/* platform specific constants */
-// #include "pycore_slp_platformselect.h"
-
 /******************************************************
 
   type template and support for pickle helper types

Stackless/pickling/safe_pickle.c

@@ -5,7 +5,6 @@
 
 #define SLP_BUILD_CORE
 #include "pycore_stackless.h"
-// #include "pycore_slp_platformselect.h"
 
 /* safe pickling */