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authork0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-02-04 11:22:28 +0000
committerk0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-02-04 11:22:28 +0000
commited935aa5be0e5e6b8d53c3e7d76a9ce395dfa18b (patch)
tree04c71c64100ed07478bbaed89228c1323a34f2d0 /vm.c
parent56530b541b2601d2d8bfc4e53796faaba414ae2f (diff)
mjit_compile.c: merge initial JIT compiler
which has been developed by Takashi Kokubun <takashikkbn@gmail> as YARV-MJIT. Many of its bugs are fixed by wanabe <s.wanabe@gmail.com>. This JIT compiler is designed to be a safe migration path to introduce JIT compiler to MRI. So this commit does not include any bytecode changes or dynamic instruction modifications, which are done in original MJIT. This commit even strips off some aggressive optimizations from YARV-MJIT, and thus it's slower than YARV-MJIT too. But it's still fairly faster than Ruby 2.5 in some benchmarks (attached below). Note that this JIT compiler passes `make test`, `make test-all`, `make test-spec` without JIT, and even with JIT. Not only it's perfectly safe with JIT disabled because it does not replace VM instructions unlike MJIT, but also with JIT enabled it stably runs Ruby applications including Rails applications. I'm expecting this version as just "initial" JIT compiler. I have many optimization ideas which are skipped for initial merging, and you may easily replace this JIT compiler with a faster one by just replacing mjit_compile.c. `mjit_compile` interface is designed for the purpose. common.mk: update dependencies for mjit_compile.c. internal.h: declare `rb_vm_insn_addr2insn` for MJIT. vm.c: exclude some definitions if `-DMJIT_HEADER` is provided to compiler. This avoids to include some functions which take a long time to compile, e.g. vm_exec_core. Some of the purpose is achieved in transform_mjit_header.rb (see `IGNORED_FUNCTIONS`) but others are manually resolved for now. Load mjit_helper.h for MJIT header. mjit_helper.h: New. This is a file used only by JIT-ed code. I'll refactor `mjit_call_cfunc` later. vm_eval.c: add some #ifdef switches to skip compiling some functions like Init_vm_eval. win32/mkexports.rb: export thread/ec functions, which are used by MJIT. include/ruby/defines.h: add MJIT_FUNC_EXPORTED macro alis to clarify that a function is exported only for MJIT. array.c: export a function used by MJIT. bignum.c: ditto. class.c: ditto. compile.c: ditto. error.c: ditto. gc.c: ditto. hash.c: ditto. iseq.c: ditto. numeric.c: ditto. object.c: ditto. proc.c: ditto. re.c: ditto. st.c: ditto. string.c: ditto. thread.c: ditto. variable.c: ditto. vm_backtrace.c: ditto. vm_insnhelper.c: ditto. vm_method.c: ditto. I would like to improve maintainability of function exports, but I believe this way is acceptable as initial merging if we clarify the new exports are for MJIT (so that we can use them as TODO list to fix) and add unit tests to detect unresolved symbols. I'll add unit tests of JIT compilations in succeeding commits. Author: Takashi Kokubun <takashikkbn@gmail.com> Contributor: wanabe <s.wanabe@gmail.com> Part of [Feature #14235] --- * Known issues * Code generated by gcc is faster than clang. The benchmark may be worse in macOS. Following benchmark result is provided by gcc w/ Linux. * Performance is decreased when Google Chrome is running * JIT can work on MinGW, but it doesn't improve performance at least in short running benchmark. * Currently it doesn't perform well with Rails. We'll try to fix this before release. --- * Benchmark reslts Benchmarked with: Intel 4.0GHz i7-4790K with 16GB memory under x86-64 Ubuntu 8 Cores - 2.0.0-p0: Ruby 2.0.0-p0 - r62186: Ruby trunk (early 2.6.0), before MJIT changes - JIT off: On this commit, but without `--jit` option - JIT on: On this commit, and with `--jit` option ** Optcarrot fps Benchmark: https://github.com/mame/optcarrot | |2.0.0-p0 |r62186 |JIT off |JIT on | |:--------|:--------|:--------|:--------|:--------| |fps |37.32 |51.46 |51.31 |58.88 | |vs 2.0.0 |1.00x |1.38x |1.37x |1.58x | ** MJIT benchmarks Benchmark: https://github.com/benchmark-driver/mjit-benchmarks (Original: https://github.com/vnmakarov/ruby/tree/rtl_mjit_branch/MJIT-benchmarks) | |2.0.0-p0 |r62186 |JIT off |JIT on | |:----------|:--------|:--------|:--------|:--------| |aread |1.00 |1.09 |1.07 |2.19 | |aref |1.00 |1.13 |1.11 |2.22 | |aset |1.00 |1.50 |1.45 |2.64 | |awrite |1.00 |1.17 |1.13 |2.20 | |call |1.00 |1.29 |1.26 |2.02 | |const2 |1.00 |1.10 |1.10 |2.19 | |const |1.00 |1.11 |1.10 |2.19 | |fannk |1.00 |1.04 |1.02 |1.00 | |fib |1.00 |1.32 |1.31 |1.84 | |ivread |1.00 |1.13 |1.12 |2.43 | |ivwrite |1.00 |1.23 |1.21 |2.40 | |mandelbrot |1.00 |1.13 |1.16 |1.28 | |meteor |1.00 |2.97 |2.92 |3.17 | |nbody |1.00 |1.17 |1.15 |1.49 | |nest-ntimes|1.00 |1.22 |1.20 |1.39 | |nest-while |1.00 |1.10 |1.10 |1.37 | |norm |1.00 |1.18 |1.16 |1.24 | |nsvb |1.00 |1.16 |1.16 |1.17 | |red-black |1.00 |1.02 |0.99 |1.12 | |sieve |1.00 |1.30 |1.28 |1.62 | |trees |1.00 |1.14 |1.13 |1.19 | |while |1.00 |1.12 |1.11 |2.41 | ** Discourse's script/bench.rb Benchmark: https://github.com/discourse/discourse/blob/v1.8.7/script/bench.rb NOTE: Rails performance was somehow a little degraded with JIT for now. We should fix this. (At least I know opt_aref is performing badly in JIT and I have an idea to fix it. Please wait for the fix.) *** JIT off Your Results: (note for timings- percentile is first, duration is second in millisecs) categories_admin: 50: 17 75: 18 90: 22 99: 29 home_admin: 50: 21 75: 21 90: 27 99: 40 topic_admin: 50: 17 75: 18 90: 22 99: 32 categories: 50: 35 75: 41 90: 43 99: 77 home: 50: 39 75: 46 90: 49 99: 95 topic: 50: 46 75: 52 90: 56 99: 101 *** JIT on Your Results: (note for timings- percentile is first, duration is second in millisecs) categories_admin: 50: 19 75: 21 90: 25 99: 33 home_admin: 50: 24 75: 26 90: 30 99: 35 topic_admin: 50: 19 75: 20 90: 25 99: 30 categories: 50: 40 75: 44 90: 48 99: 76 home: 50: 42 75: 48 90: 51 99: 89 topic: 50: 49 75: 55 90: 58 99: 99 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm.c')
-rw-r--r--vm.c36
1 files changed, 25 insertions, 11 deletions
diff --git a/vm.c b/vm.c
index 0ff180a..7fc7aee 100644
--- a/vm.c
+++ b/vm.c
@@ -293,7 +293,7 @@ static void vm_collect_usage_register(int reg, int isset);
#endif
static VALUE vm_make_env_object(const rb_execution_context_t *ec, rb_control_frame_t *cfp);
-static VALUE vm_invoke_bmethod(rb_execution_context_t *ec, rb_proc_t *proc, VALUE self, int argc, const VALUE *argv, VALUE block_handler);
+extern VALUE vm_invoke_bmethod(rb_execution_context_t *ec, rb_proc_t *proc, VALUE self, int argc, const VALUE *argv, VALUE block_handler);
static VALUE vm_invoke_proc(rb_execution_context_t *ec, rb_proc_t *proc, VALUE self, int argc, const VALUE *argv, VALUE block_handler);
static VALUE rb_block_param_proxy;
@@ -302,17 +302,24 @@ static VALUE rb_block_param_proxy;
#include "vm_insnhelper.h"
#include "vm_exec.h"
#include "vm_insnhelper.c"
+
+#ifndef MJIT_HEADER
+
#include "vm_exec.c"
#include "vm_method.c"
+#endif /* #ifndef MJIT_HEADER */
#include "vm_eval.c"
+#ifndef MJIT_HEADER
#define PROCDEBUG 0
rb_serial_t
rb_next_class_serial(void)
{
- return NEXT_CLASS_SERIAL();
+ rb_serial_t class_serial = NEXT_CLASS_SERIAL();
+ mjit_add_class_serial(class_serial);
+ return class_serial;
}
VALUE rb_cRubyVM;
@@ -339,7 +346,7 @@ rb_vm_inc_const_missing_count(void)
VALUE rb_class_path_no_cache(VALUE _klass);
-int
+MJIT_FUNC_EXPORTED int
rb_dtrace_setup(rb_execution_context_t *ec, VALUE klass, ID id,
struct ruby_dtrace_method_hook_args *args)
{
@@ -499,7 +506,7 @@ rb_vm_get_binding_creatable_next_cfp(const rb_execution_context_t *ec, const rb_
return 0;
}
-rb_control_frame_t *
+MJIT_FUNC_EXPORTED rb_control_frame_t *
rb_vm_get_ruby_level_next_cfp(const rb_execution_context_t *ec, const rb_control_frame_t *cfp)
{
if (RUBY_VM_CONTROL_FRAME_STACK_OVERFLOW_P(ec, cfp)) bp();
@@ -512,6 +519,8 @@ rb_vm_get_ruby_level_next_cfp(const rb_execution_context_t *ec, const rb_control
return 0;
}
+#endif /* #ifndef MJIT_HEADER */
+
static rb_control_frame_t *
vm_get_ruby_level_caller_cfp(const rb_execution_context_t *ec, const rb_control_frame_t *cfp)
{
@@ -546,6 +555,8 @@ rb_vm_pop_cfunc_frame(void)
vm_pop_frame(ec, cfp, cfp->ep);
}
+#ifndef MJIT_HEADER
+
void
rb_vm_rewind_cfp(rb_execution_context_t *ec, rb_control_frame_t *cfp)
{
@@ -880,7 +891,7 @@ rb_proc_dup(VALUE self)
}
-VALUE
+MJIT_FUNC_EXPORTED VALUE
rb_vm_make_proc_lambda(const rb_execution_context_t *ec, const struct rb_captured_block *captured, VALUE klass, int8_t is_lambda)
{
VALUE procval;
@@ -1157,14 +1168,14 @@ vm_invoke_proc(rb_execution_context_t *ec, rb_proc_t *proc, VALUE self,
return invoke_block_from_c_proc(ec, proc, self, argc, argv, passed_block_handler, proc->is_lambda);
}
-static VALUE
+MJIT_FUNC_EXPORTED VALUE
vm_invoke_bmethod(rb_execution_context_t *ec, rb_proc_t *proc, VALUE self,
int argc, const VALUE *argv, VALUE block_handler)
{
return invoke_block_from_c_proc(ec, proc, self, argc, argv, block_handler, TRUE);
}
-VALUE
+MJIT_FUNC_EXPORTED VALUE
rb_vm_invoke_proc(rb_execution_context_t *ec, rb_proc_t *proc,
int argc, const VALUE *argv, VALUE passed_block_handler)
{
@@ -1391,7 +1402,7 @@ make_localjump_error(const char *mesg, VALUE value, int reason)
return exc;
}
-void
+MJIT_FUNC_EXPORTED void
rb_vm_localjump_error(const char *mesg, VALUE value, int reason)
{
VALUE exc = make_localjump_error(mesg, value, reason);
@@ -1775,7 +1786,7 @@ hook_before_rewind(rb_execution_context_t *ec, const rb_control_frame_t *cfp, in
};
*/
-static VALUE
+MJIT_FUNC_EXPORTED VALUE
vm_exec(rb_execution_context_t *ec)
{
enum ruby_tag_type state;
@@ -1789,8 +1800,8 @@ vm_exec(rb_execution_context_t *ec)
if ((state = EC_EXEC_TAG()) == TAG_NONE) {
result = mjit_exec(ec);
vm_loop_start:
- if (result == Qundef)
- result = vm_exec_core(ec, initial);
+ if (result == Qundef)
+ result = vm_exec_core(ec, initial);
VM_ASSERT(ec->tag == &_tag);
if ((state = _tag.state) != TAG_NONE) {
err = (struct vm_throw_data *)result;
@@ -2000,6 +2011,7 @@ vm_exec(rb_execution_context_t *ec)
state = 0;
ec->tag->state = TAG_NONE;
ec->errinfo = Qnil;
+
result = Qundef;
goto vm_loop_start;
}
@@ -3424,4 +3436,6 @@ vm_collect_usage_register(int reg, int isset)
}
#endif
+#endif /* #ifndef MJIT_HEADER */
+
#include "vm_call_iseq_optimized.inc" /* required from vm_insnhelper.c */