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a major revision of the bytecode generator and JIT compiler. the effect is that now we can compute with lambda functions and with true tail recursion

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This commit is contained in:
kr.angelov
2014-09-11 15:39:39 +00:00
parent 18ee232497
commit 621d748bac
10 changed files with 433 additions and 276 deletions
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403
src/runtime/c/pgf/jit.c
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@@ -317,6 +317,29 @@ pgf_jit_predicate(PgfReader* rdr, PgfAbstr* abstr,
#endif
}
static void
pgf_jit_compile_slide(PgfReader* rdr, int es_arg, size_t a, size_t b)
{
if (a == b) {
jit_prepare(2);
jit_movi_i(JIT_V1, a);
jit_pusharg_p(JIT_V1);
jit_getarg_p(JIT_V1, es_arg);
jit_ldxi_p(JIT_V1, JIT_V1, offsetof(PgfEvalState,stack));
jit_pusharg_p(JIT_V1);
jit_finish(gu_buf_trim_n);
} else {
jit_prepare(3);
jit_movi_i(JIT_V1, b);
jit_pusharg_p(JIT_V1);
jit_movi_i(JIT_V1, a);
jit_pusharg_p(JIT_V1);
jit_getarg_p(JIT_V1, es_arg);
jit_pusharg_p(JIT_V1);
jit_finish(pgf_evaluate_slide);
}
}
void
pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
PgfAbsFun* absfun)
@@ -371,7 +394,9 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
gu_printf(out, err, " ");
#endif
uint8_t opcode = pgf_read_tag(rdr);
uint8_t tag = pgf_read_tag(rdr);
uint8_t opcode = tag >> 3;
uint8_t mod = tag & 0x07;
switch (opcode) {
case PGF_INSTR_ENTER: {
#ifdef PGF_JIT_DEBUG
@@ -383,40 +408,11 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
closure_arg = jit_arg_p();
break;
}
case PGF_INSTR_EVAL_ARG_VAR: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "EVAL_ARG_VAR %d\n", index);
#endif
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_last);
jit_ldxi_p(JIT_V0, JIT_RET, -index*sizeof(PgfClosure*));
jit_prepare(2);
jit_pusharg_p(JIT_V0);
jit_getarg_p(JIT_V2, es_arg);
jit_pusharg_p(JIT_V2);
jit_ldr_p(JIT_V0, JIT_V0);
jit_finishr(JIT_V0);
jit_retval_p(JIT_V1);
jit_ldxi_p(JIT_V0, JIT_V1, offsetof(PgfValue, absfun));
break;
}
case PGF_INSTR_EVAL_FREE_VAR: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "EVAL_FREE_VAR %d\n", index);
#endif
break;
}
case PGF_INSTR_CASE: {
PgfCId id = pgf_read_cid(rdr, rdr->opool);
int target = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "CASE %s %03d\n", id, target);
gu_printf(out, err, "CASE %s %03d\n", id, target);
#endif
jit_insn *jump=
jit_bnei_i(jit_forward(), JIT_V0, (int) jit_forward());
@@ -439,34 +435,41 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
jit_finish(pgf_evaluate_save_variables);
break;
}
case PGF_INSTR_CASE_INT: {
int n = pgf_read_int(rdr);
int target = pgf_read_int(rdr);
case PGF_INSTR_CASE_LIT: {
switch (mod) {
case 0: {
int n = pgf_read_int(rdr);
int target = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "CASE_INT %d %03d\n", n, target);
gu_printf(out, err, "CASE_LIT %d %03d\n", n, target);
#endif
break;
}
case PGF_INSTR_CASE_STR: {
GuString s = pgf_read_string(rdr);
int target = pgf_read_int(rdr);
break;
}
case 1: {
GuString s = pgf_read_string(rdr);
int target = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "CASE_STR %s %03d\n", s, target);
gu_printf(out, err, "CASE_LIT %s %03d\n", s, target);
#endif
break;
}
case PGF_INSTR_CASE_FLT: {
double d = pgf_read_double(rdr);
int target = pgf_read_int(rdr);
break;
}
case 2: {
double d = pgf_read_double(rdr);
int target = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "CASE_FLT %f %03d\n", d, target);
gu_printf(out, err, "CASE_LIT %f %03d\n", d, target);
#endif
break;
}
default:
gu_impossible();
}
break;
}
case PGF_INSTR_ALLOC: {
size_t size = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "ALLOC %d\n", size);
gu_printf(out, err, "ALLOC %d\n", size);
#endif
jit_prepare(2);
jit_movi_ui(JIT_V0, size*sizeof(void*));
@@ -483,7 +486,7 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
case PGF_INSTR_PUT_CONSTR: {
PgfCId id = pgf_read_cid(rdr, rdr->tmp_pool);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_CONSTR %s\n", id);
gu_printf(out, err, "PUT_CONSTR %s\n", id);
#endif
jit_movi_p(JIT_V0, pgf_evaluate_value);
@@ -502,7 +505,7 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
case PGF_INSTR_PUT_FUN: {
PgfCId id = pgf_read_cid(rdr, rdr->tmp_pool);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_FUN %s\n", id);
gu_printf(out, err, "PUT_FUN %s\n", id);
#endif
PgfCallPatch patch;
@@ -518,7 +521,7 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
case PGF_INSTR_PUT_CLOSURE: {
size_t target = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_CLOSURE %03d\n", target);
gu_printf(out, err, "PUT_CLOSURE %03d\n", target);
#endif
PgfSegmentPatch patch;
@@ -531,62 +534,72 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
gu_buf_push(rdr->jit_state->segment_patches, PgfSegmentPatch, patch);
break;
}
case PGF_INSTR_PUT_INT: {
size_t n = pgf_read_int(rdr);
case PGF_INSTR_PUT_LIT: {
switch (mod) {
case 0: {
size_t n = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_INT %d\n", n);
gu_printf(out, err, "PUT_LIT %d\n", n);
#endif
break;
}
case 1: {
GuString s = pgf_read_string(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_LIT \"%s\"\n", s);
#endif
break;
}
case 2: {
double d = pgf_read_double(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_LIT %f\n", d);
#endif
break;
}
default:
gu_impossible();
}
break;
}
case PGF_INSTR_PUT_STR: {
size_t addr = pgf_read_int(rdr);
case PGF_INSTR_SET: {
switch (mod) {
case 0: {
size_t offset = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_STR %d\n", addr);
gu_printf(out, err, "SET hp(%d)\n", offset);
#endif
break;
}
case PGF_INSTR_PUT_FLT: {
size_t addr = pgf_read_int(rdr);
jit_addi_p(JIT_V0, JIT_V1, offset*sizeof(void*));
break;
}
case 1: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUT_FLT %d\n", addr);
gu_printf(out, err, "SET stk(%d)\n", index);
#endif
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_last);
jit_ldxi_p(JIT_V0, JIT_RET, -index*sizeof(PgfClosure*));
break;
}
case 2: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "SET env(%d)\n", index);
#endif
jit_getarg_p(JIT_V0, closure_arg);
jit_ldxi_p(JIT_V0, JIT_V0, sizeof(PgfClosure)+index*sizeof(PgfClosure*));
break;
}
default:
gu_impossible();
}
break;
}
case PGF_INSTR_SET_VALUE: {
size_t offset = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "SET_VALUE %d\n", offset);
#endif
jit_addi_p(JIT_V0, JIT_V1, offset*sizeof(void*));
jit_stxi_p(curr_offset*sizeof(void*), JIT_V1, JIT_V0);
curr_offset++;
break;
}
case PGF_INSTR_SET_ARG_VAR: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "SET_ARG_VAR %d\n", index);
#endif
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_last);
jit_ldxi_p(JIT_V0, JIT_RET, -index*sizeof(PgfClosure*));
jit_stxi_p(curr_offset*sizeof(void*), JIT_V1, JIT_V0);
curr_offset++;
break;
}
case PGF_INSTR_SET_FREE_VAR: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "SET_FREE_VAR %d\n", index);
#endif
jit_getarg_p(JIT_V0, closure_arg);
jit_ldxi_p(JIT_V0, JIT_V0, sizeof(PgfClosure)+index*sizeof(PgfClosure*));
jit_stxi_p(curr_offset*sizeof(void*), JIT_V1, JIT_V0);
curr_offset++;
break;
@@ -600,76 +613,174 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
curr_offset++;
break;
}
case PGF_INSTR_PUSH_VALUE: {
size_t offset = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUSH_VALUE %d\n", offset);
#endif
case PGF_INSTR_PUSH: {
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_extend);
if (offset == 0) {
jit_str_p(JIT_RET, JIT_V1);
} else {
jit_addi_p(JIT_V0, JIT_V1, offset*sizeof(void*));
switch (mod) {
case 0: {
size_t offset = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUSH hp(%d)\n", offset);
#endif
if (offset == 0) {
jit_str_p(JIT_RET, JIT_V1);
} else {
jit_addi_p(JIT_V0, JIT_V1, offset*sizeof(void*));
jit_str_p(JIT_RET, JIT_V0);
}
break;
}
case 1: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUSH stk(%d)\n", index);
#endif
jit_ldxi_p(JIT_V0, JIT_RET, -(index+1)*sizeof(PgfClosure*));
jit_str_p(JIT_RET, JIT_V0);
break;
}
case 2: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUSH env(%d)\n", index);
#endif
jit_getarg_p(JIT_V0, closure_arg);
jit_ldxi_p(JIT_V0, JIT_V0, sizeof(PgfClosure)+index*sizeof(PgfClosure*));
jit_str_p(JIT_RET, JIT_V0);
break;
}
default:
gu_impossible();
}
break;
}
case PGF_INSTR_PUSH_ARG_VAR: {
size_t index = pgf_read_int(rdr);
case PGF_INSTR_EVAL: {
switch (mod & 0x3) {
case 0: {
size_t offset = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUSH_ARG_VAR %d\n", index);
gu_printf(out, err, "EVAL hp(%d)", offset);
#endif
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_extend);
jit_ldxi_p(JIT_V0, JIT_RET, -(index+1)*sizeof(PgfClosure*));
jit_str_p(JIT_RET, JIT_V0);
break;
}
case PGF_INSTR_PUSH_FREE_VAR: {
size_t index = pgf_read_int(rdr);
jit_addi_p(JIT_V0, JIT_V1, offset*sizeof(void*));
break;
}
case 1: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "PUSH_FREE_VAR %d\n", index);
gu_printf(out, err, "EVAL stk(%d)", index);
#endif
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_extend);
jit_getarg_p(JIT_V0, closure_arg);
jit_ldxi_p(JIT_V0, JIT_V0, sizeof(PgfClosure)+index*sizeof(PgfClosure*));
jit_str_p(JIT_RET, JIT_V0);
jit_getarg_p(JIT_V0, es_arg);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfEvalState,stack));
jit_prepare(1);
jit_pusharg_p(JIT_V0);
jit_finish(gu_buf_last);
jit_ldxi_p(JIT_V0, JIT_RET, -index*sizeof(PgfClosure*));
break;
}
case 2: {
size_t index = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "EVAL env(%d)", index);
#endif
break;
}
default:
gu_impossible();
}
switch (mod >> 2) {
case 0: {
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "\n");
#endif
jit_prepare(2);
jit_pusharg_p(JIT_V0);
jit_getarg_p(JIT_V2, es_arg);
jit_pusharg_p(JIT_V2);
jit_ldr_p(JIT_V0, JIT_V0);
jit_finishr(JIT_V0);
jit_retval_p(JIT_V1);
jit_ldxi_p(JIT_V0, JIT_V1, offsetof(PgfValue, absfun));
break;
}
case 1: {
size_t a = pgf_read_int(rdr);
size_t b = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, " tail(%d,%d)\n", a, b);
#endif
pgf_jit_compile_slide(rdr, es_arg, a, b);
jit_setarg_p(JIT_V0, closure_arg);
jit_ldr_p(JIT_RET, JIT_V0);
jit_tail_finishr(JIT_RET);
break;
}
default:
gu_impossible();
}
break;
}
case PGF_INSTR_TAIL_CALL: {
case PGF_INSTR_CALL: {
PgfCId id = pgf_read_cid(rdr, rdr->tmp_pool);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "TAIL_CALL %s\n", id);
gu_printf(out, err, "CALL %s", id);
#endif
jit_getarg_p(JIT_V0, es_arg);
jit_getarg_p(JIT_V1, closure_arg);
jit_prepare(2);
jit_pusharg_p(JIT_V1);
jit_pusharg_p(JIT_V0);
switch (mod >> 2) {
case 0: {
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "\n");
#endif
PgfCallPatch patch;
patch.cid = id;
patch.ref = jit_movi_p(JIT_V0, jit_forward());
gu_buf_push(rdr->jit_state->call_patches, PgfCallPatch, patch);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfAbsFun,function));
jit_getarg_p(JIT_V0, es_arg);
jit_getarg_p(JIT_V1, closure_arg);
jit_prepare(2);
jit_pusharg_p(JIT_V1);
jit_pusharg_p(JIT_V0);
jit_finishr(JIT_V0);
jit_retval_p(JIT_V1);
PgfCallPatch patch;
patch.cid = id;
patch.ref = jit_movi_p(JIT_V0, jit_forward());
gu_buf_push(rdr->jit_state->call_patches, PgfCallPatch, patch);
jit_ldxi_p(JIT_V0, JIT_V0, offsetof(PgfAbsFun,function));
jit_finishr(JIT_V0);
jit_retval_p(JIT_V1);
break;
}
case 1: {
size_t a = pgf_read_int(rdr);
size_t b = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, " tail(%d,%d)\n", a, b);
#endif
pgf_jit_compile_slide(rdr, es_arg, a, b);
PgfCallPatch patch;
patch.cid = id;
patch.ref = jit_movi_p(JIT_V0, jit_forward());
gu_buf_push(rdr->jit_state->call_patches, PgfCallPatch, patch);
jit_ldxi_p(JIT_RET, JIT_V0, offsetof(PgfAbsFun,function));
jit_tail_finishr(JIT_RET);
break;
}
default:
gu_impossible();
}
break;
}
case PGF_INSTR_FAIL:
@@ -692,7 +803,7 @@ pgf_jit_function(PgfReader* rdr, PgfAbstr* abstr,
size_t count = pgf_read_int(rdr);
#ifdef PGF_JIT_DEBUG
gu_printf(out, err, "RET %d\n", count);
gu_printf(out, err, "RET %d\n", count);
#endif
if (count > 0) {