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fix bug in self-tail-recursion with "external" variables; other sundries

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* gdbinit (pp, inst): New commands.

* libguile/vm-engine.c (vm_error_not_a_pair): New error case.

* libguile/vm-i-scheme.c (VM_VALIDATE_CONS): New macro -- use this
  instead of SCM_VALIDATE_* because SCM_VALIDATE will exit nonlocally
  before we have a chance to sync the regs.
  (car, cdr, set-car, set-cdr): Use VM_VALIDATE_CONS.

* libguile/vm-i-system.c (goto/args): Bugfix: when doing a
  self-tail-recursion, allocate fresh externals. Fixes use of match.go.

* module/system/vm/assemble.scm (dump-object!): Add some checks that we
  aren't dumping out values that the VM can't handle.

* module/system/vm/disasm.scm (disassemble-externals): Fix rotten call to
  `print-info'.

* oop/goops/dispatch.scm: Add a FIXME.

* testsuite/Makefile.am (vm_test_files):
* testsuite/t-closure4.scm (extract-symbols): New test, distilled with
  much effort out of match.scm.

* ice-9/Makefile.am (NOCOMP_SOURCES): Re-enable compilation of match.scm.
  Yay!
This commit is contained in:
Andy Wingo 2008-10-18 19:21:44 +02:00
parent b3b45ac15e
commit 5e390de62f
10 changed files with 66 additions and 12 deletions
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8
libguile/vm-i-system.c
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@ -621,7 +621,13 @@ VM_DEFINE_INSTRUCTION (goto_args, "goto/args", 1, -1, 1)
/* Drop the first argument and the program itself. */
sp -= 2;
NULLSTACK (bp->nargs + 1)
NULLSTACK (bp->nargs + 1);
/* Freshen the externals */
external = bp->external;
for (i = 0; i < bp->nexts; i++)
CONS (external, SCM_UNDEFINED, external);
SCM_FRAME_DATA_ADDRESS (fp)[0] = external;
/* Call itself */
ip = bp->base;