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Adapt JIT calling convention; continuations take mra from stack

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* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS): Update prototype of
  capture-continuation.
* libguile/jit.h:
* libguile/jit.c (scm_jit_enter_mcode): Return void, not the vra.
  Instead, we expect the code to set vp->ip for the vra.
* libguile/vm-engine.c (instrument-entry, instrument-loop)
  (return-values, abort): Adapt scm_jit_enter_mcode calling convention.
  (capture-continuation): No need to pass an mra; the intrinsic will
  read it from the stack.
* libguile/vm.c (capture_continuation): Remove mra arg, as we take mra
  from the continuation.
  (scm_call_n): Adapt to scm_jit_enter_mcode change.
This commit is contained in:
Andy Wingo 2018-08-13 10:27:13 +02:00
parent a20feea43e
commit 5df43b60a9
5 changed files with 17 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

3
libguile/intrinsics.h
View file

@ -69,7 +69,6 @@ typedef void (*scm_t_thread_mra_intrinsic) (scm_thread*, uint8_t*);
typedef uint32_t* (*scm_t_vra_from_thread_intrinsic) (scm_thread*);
typedef uint8_t* (*scm_t_mra_from_thread_scm_intrinsic) (scm_thread*, SCM);
typedef uint8_t* (*scm_t_mra_from_thread_mra_intrinsic) (scm_thread*, uint8_t*);
typedef SCM (*scm_t_scm_from_thread_mra_intrinsic) (scm_thread*, uint8_t*);
#define SCM_FOR_ALL_VM_INTRINSICS(M) \
M(scm_from_scm_scm, add, "add", ADD) \
@ -121,7 +120,7 @@ typedef SCM (*scm_t_scm_from_thread_mra_intrinsic) (scm_thread*, uint8_t*);
M(thread_mra, push_interrupt_frame, "push-interrupt-frame", PUSH_INTERRUPT_FRAME) \
M(thread_scm_scm, foreign_call, "foreign-call", FOREIGN_CALL) \
M(thread_scm_noreturn, reinstate_continuation_x, "reinstate-continuation!", REINSTATE_CONTINUATION_X) \
M(scm_from_thread_mra, capture_continuation, "capture-continuation", CAPTURE_CONTINUATION) \
M(scm_from_thread, capture_continuation, "capture-continuation", CAPTURE_CONTINUATION) \
M(mra_from_thread_scm, compose_continuation, "compose-continuation", COMPOSE_CONTINUATION) \
M(int_from_scm, rest_arg_length, "rest-arg-length", REST_ARG_LENGTH) \
M(mra_from_thread_mra, abort_to_prompt, "abort-to-prompt", ABORT_TO_PROMPT) \

3
libguile/jit.c
View file

@ -1215,11 +1215,10 @@ scm_jit_compute_mcode (scm_thread *thread, struct scm_jit_function_data *data)
return NULL;
}
uint32_t *
void
scm_jit_enter_mcode (scm_thread *thread, const uint8_t *mcode)
{
abort ();
return NULL;
}
void

4
libguile/jit.h
View file

@ -53,8 +53,8 @@ enum scm_jit_counter_value
SCM_INTERNAL const uint8_t *scm_jit_compute_mcode (scm_thread *thread,
struct scm_jit_function_data *data);
SCM_INTERNAL uint32_t *scm_jit_enter_mcode (scm_thread *thread,
const uint8_t *mcode);
SCM_INTERNAL void scm_jit_enter_mcode (scm_thread *thread,
const uint8_t *mcode);
SCM_INTERNAL void scm_init_jit (void);

29
libguile/vm-engine.c
View file

@ -472,8 +472,8 @@ VM_NAME (scm_thread *thread)
if (mcode)
{
ip = scm_jit_enter_mcode (thread, mcode);
CACHE_SP ();
scm_jit_enter_mcode (thread, mcode);
CACHE_REGISTER ();
NEXT (0);
}
}
@ -682,8 +682,8 @@ VM_NAME (scm_thread *thread)
if (mcode)
{
ip = scm_jit_enter_mcode (thread, mcode);
CACHE_SP ();
scm_jit_enter_mcode (thread, mcode);
CACHE_REGISTER ();
NEXT (0);
}
else
@ -716,8 +716,8 @@ VM_NAME (scm_thread *thread)
if (mcode)
{
ip = scm_jit_enter_mcode (thread, mcode);
CACHE_SP ();
scm_jit_enter_mcode (thread, mcode);
CACHE_REGISTER ();
NEXT (0);
}
}
@ -735,12 +735,11 @@ VM_NAME (scm_thread *thread)
VM_DEFINE_OP (15, capture_continuation, "capture-continuation", DOP1 (X8_S24))
{
uint32_t dst;
uint8_t *mra = NULL;
UNPACK_24 (op, dst);
SYNC_IP ();
SP_SET (dst, CALL_INTRINSIC (capture_continuation, (thread, mra)));
SP_SET (dst, CALL_INTRINSIC (capture_continuation, (thread)));
NEXT (1);
}
@ -769,16 +768,10 @@ VM_NAME (scm_thread *thread)
ABORT_CONTINUATION_HOOK ();
if (mcode)
{
ip = scm_jit_enter_mcode (thread, mcode);
CACHE_SP ();
NEXT (0);
}
else
{
CACHE_REGISTER ();
NEXT (0);
}
scm_jit_enter_mcode (thread, mcode);
CACHE_REGISTER ();
NEXT (0);
}
/* builtin-ref dst:12 idx:12

4
libguile/vm.c
View file

@ -1086,7 +1086,7 @@ reinstate_continuation_x (scm_thread *thread, SCM cont)
}
static SCM
capture_continuation (scm_thread *thread, uint8_t *mra)
capture_continuation (scm_thread *thread)
{
struct scm_vm *vp = &thread->vm;
SCM vm_cont = capture_stack (vp->stack_top,
@ -1441,7 +1441,7 @@ scm_call_n (SCM proc, SCM *argv, size_t nargs)
if (vp->trace_level)
invoke_abort_hook (thread);
if (mcode)
vp->ip = scm_jit_enter_mcode (thread, mcode);
scm_jit_enter_mcode (thread, mcode);
}
else
vp->ip = get_callee_vcode (thread);