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Include unit id in a function name of an inlined method

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I'm trying to make it possible to include all JIT-ed code in a single C
file. This is needed to guarantee uniqueness of all function names
This commit is contained in:
Takashi Kokubun 2020-04-30 22:58:07 -07:00
parent 96837dc9e0
commit f5ddbba9a2
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GPG key ID: 6FFC433B12EE23DD
4 changed files with 10 additions and 9 deletions
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2
mjit.h
View file

@ -83,7 +83,7 @@ extern struct rb_mjit_compile_info* rb_mjit_iseq_compile_info(const struct rb_is
extern void rb_mjit_recompile_iseq(const rb_iseq_t *iseq);
RUBY_SYMBOL_EXPORT_END
extern bool mjit_compile(FILE *f, const rb_iseq_t *iseq, const char *funcname);
extern bool mjit_compile(FILE *f, const rb_iseq_t *iseq, const char *funcname, int id);
extern void mjit_init(const struct mjit_options *opts);
extern void mjit_gc_start_hook(void);
extern void mjit_gc_exit_hook(void);

13
mjit_compile.c
View file

@ -55,6 +55,7 @@ struct compile_status {
int cc_entries_index;
// A pointer to root (i.e. not inlined) iseq being compiled.
const struct rb_iseq_constant_body *compiled_iseq;
int compiled_id; // Just a copy of compiled_iseq->jit_unit->id
// Mutated optimization levels
struct rb_mjit_compile_info *compile_info;
// If `inlined_iseqs[pos]` is not NULL, `mjit_compile_body` tries to inline ISeq there.
@ -439,7 +440,7 @@ precompile_inlinable_iseqs(FILE *f, const rb_iseq_t *iseq, struct compile_status
RSTRING_PTR(child_iseq->body->location.label),
RSTRING_PTR(rb_iseq_path(child_iseq)), FIX2INT(child_iseq->body->location.first_lineno));
struct compile_status child_status = { .compiled_iseq = status->compiled_iseq };
struct compile_status child_status = { .compiled_iseq = status->compiled_iseq, .compiled_id = status->compiled_id };
INIT_COMPILE_STATUS(child_status, child_iseq->body, false);
child_status.inline_context = (struct inlined_call_context){
.orig_argc = vm_ci_argc(ci),
@ -452,12 +453,12 @@ precompile_inlinable_iseqs(FILE *f, const rb_iseq_t *iseq, struct compile_status
return false;
}
fprintf(f, "ALWAYS_INLINE(static VALUE _mjit_inlined_%d(rb_execution_context_t *ec, rb_control_frame_t *reg_cfp, const VALUE orig_self, const rb_iseq_t *original_iseq));\n", pos);
fprintf(f, "static inline VALUE\n_mjit_inlined_%d(rb_execution_context_t *ec, rb_control_frame_t *reg_cfp, const VALUE orig_self, const rb_iseq_t *original_iseq)\n{\n", pos);
fprintf(f, "ALWAYS_INLINE(static VALUE _mjit%d_inlined_%d(rb_execution_context_t *ec, rb_control_frame_t *reg_cfp, const VALUE orig_self, const rb_iseq_t *original_iseq));\n", status->compiled_id, pos);
fprintf(f, "static inline VALUE\n_mjit%d_inlined_%d(rb_execution_context_t *ec, rb_control_frame_t *reg_cfp, const VALUE orig_self, const rb_iseq_t *original_iseq)\n{\n", status->compiled_id, pos);
fprintf(f, " const VALUE *orig_pc = reg_cfp->pc;\n");
fprintf(f, " const VALUE *orig_sp = reg_cfp->sp;\n");
bool success = mjit_compile_body(f, child_iseq, &child_status);
fprintf(f, "\n} /* end of _mjit_inlined_%d */\n\n", pos);
fprintf(f, "\n} /* end of _mjit%d_inlined_%d */\n\n", status->compiled_id, pos);
if (!success)
return false;
@ -470,7 +471,7 @@ precompile_inlinable_iseqs(FILE *f, const rb_iseq_t *iseq, struct compile_status
// Compile ISeq to C code in `f`. It returns true if it succeeds to compile.
bool
mjit_compile(FILE *f, const rb_iseq_t *iseq, const char *funcname)
mjit_compile(FILE *f, const rb_iseq_t *iseq, const char *funcname, int id)
{
// For performance, we verify stack size only on compilation time (mjit_compile.inc.erb) without --jit-debug
if (!mjit_opts.debug) {
@ -478,7 +479,7 @@ mjit_compile(FILE *f, const rb_iseq_t *iseq, const char *funcname)
fprintf(f, "#define OPT_CHECKED_RUN 0\n\n");
}
struct compile_status status = { .compiled_iseq = iseq->body };
struct compile_status status = { .compiled_iseq = iseq->body, .compiled_id = id };
INIT_COMPILE_STATUS(status, iseq->body, true);
if ((iseq->body->ci_size > 0 && status.cc_entries_index == -1)
|| (status.is_entries != NULL && !mjit_copy_cache_from_main_thread(iseq, status.is_entries))) {

2
mjit_worker.c
View file

@ -1120,7 +1120,7 @@ convert_unit_to_func(struct rb_mjit_unit *unit)
verbose(2, "start compilation: %s@%s:%ld -> %s", iseq_label, iseq_path, iseq_lineno, c_file);
fprintf(f, "/* %s@%s:%ld */\n\n", iseq_label, iseq_path, iseq_lineno);
bool success = mjit_compile(f, unit->iseq, funcname);
bool success = mjit_compile(f, unit->iseq, funcname, unit->id);
// release blocking mjit_gc_start_hook
CRITICAL_SECTION_START(3, "after mjit_compile to wakeup client for GC");

2
tool/ruby_vm/views/_mjit_compile_send.erb
View file

@ -50,7 +50,7 @@
fprintf(f, " {\n");
fprintf(f, " VALUE orig_self = reg_cfp->self;\n");
fprintf(f, " reg_cfp->self = stack[%d];\n", b->stack_size + sp_inc - 1);
fprintf(f, " stack[%d] = _mjit_inlined_%d(ec, reg_cfp, orig_self, original_iseq);\n", b->stack_size + sp_inc - 1, pos);
fprintf(f, " stack[%d] = _mjit%d_inlined_%d(ec, reg_cfp, orig_self, original_iseq);\n", b->stack_size + sp_inc - 1, status->compiled_id, pos);
fprintf(f, " reg_cfp->self = orig_self;\n");
fprintf(f, " }\n");
}