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authorAndy Wingo <wingo@pobox.com>2010-01-09 16:42:27 +0100
committerAndy Wingo <wingo@pobox.com>2010-01-09 16:43:26 +0100
commit6f16379e9a8d1f2d10c648793582a10772f29e32 (patch)
tree895e04e9865e359245c7c372ab5b9e7d4afad9f7 /libguile/vm-engine.c
parent75c3ed282029f4d2a80adf75f52ec1b9b34edcb7 (diff)
downloadguile-6f16379e9a8d1f2d10c648793582a10772f29e32.tar.gz
allocate free variables inline to closures
* libguile/_scm.h (SCM_OBJCODE_MINOR_VERSION): Bump. * libguile/programs.h (SCM_PROGRAM_FREE_VARIABLES) (SCM_PROGRAM_FREE_VARIABLE_REF, SCM_PROGRAM_FREE_VARIABLE_SET) (SCM_PROGRAM_NUM_FREE_VARIABLES): * libguile/programs.c (scm_make_program, scm_program_num_free_variables) (scm_program_free_variable_ref, scm_program_free_variable_set_x): Allocate free variables inline with programs, instead of being in a vect. Should improve locality, and require fewer local variables in the VM. * libguile/vm-engine.c (vm_engine): Remove free_vars and free_vars_count variables. * libguile/vm-engine.h (CACHE_PROGRAM): No need to muck with free_vars and free_vars_count. (CHECK_FREE_VARIABLE): Update for inline free vars. * libguile/vm-i-system.c (FREE_VARIABLE_REF): Update for inline free vars. (make-closure, fix-closure): Take the closure vals as separate stack args, and copy or fix them inline into the appropriate closure. * module/language/objcode/spec.scm (program-free-variables): Define a local version of this removed function. * module/language/tree-il/compile-glil.scm (flatten): Adjust to not make a vector when making closures. * module/system/vm/program.scm: Export program-num-free-variables, program-free-variable-ref, program-free-variable-set!, and remove program-free-variables. * test-suite/tests/tree-il.test ("lambda"): Update to not make vectors when making closures.
Diffstat (limited to 'libguile/vm-engine.c')
-rw-r--r--libguile/vm-engine.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/libguile/vm-engine.c b/libguile/vm-engine.c
index a64b43a47..c46834b2e 100644
--- a/libguile/vm-engine.c
+++ b/libguile/vm-engine.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@@ -44,8 +44,6 @@ VM_NAME (SCM vm, SCM program, SCM *argv, int nargs)
/* Cache variables */
struct scm_objcode *bp = NULL; /* program base pointer */
- SCM *free_vars = NULL; /* free variables */
- size_t free_vars_count = 0; /* length of FREE_VARS */
SCM *objects = NULL; /* constant objects */
size_t object_count = 0; /* length of OBJECTS */
SCM *stack_limit = vp->stack_limit; /* stack limit address */