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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_eval.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_eval.c')
-rw-r--r--vm_eval.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/vm_eval.c b/vm_eval.c
index 3a82a08..61c112a 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -20,7 +20,7 @@ static inline VALUE vm_yield_with_cref(rb_execution_context_t *ec, int argc, con
static inline VALUE vm_yield(rb_execution_context_t *ec, int argc, const VALUE *argv);
static inline VALUE vm_yield_with_block(rb_execution_context_t *ec, int argc, const VALUE *argv, VALUE block_handler);
static inline VALUE vm_yield_force_blockarg(rb_execution_context_t *ec, VALUE args);
-static VALUE vm_exec(rb_execution_context_t *ec);
+VALUE vm_exec(rb_execution_context_t *ec);
static void vm_set_eval_stack(rb_execution_context_t * th, const rb_iseq_t *iseq, const rb_cref_t *cref, const struct rb_block *base_block);
static int vm_collect_local_variables_in_heap(const VALUE *dfp, const struct local_var_list *vars);
@@ -38,7 +38,9 @@ typedef enum call_type {
static VALUE send_internal(int argc, const VALUE *argv, VALUE recv, call_type scope);
static VALUE vm_call0_body(rb_execution_context_t* ec, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc, const VALUE *argv);
-static VALUE
+#ifndef MJIT_HEADER
+
+MJIT_FUNC_EXPORTED VALUE
vm_call0(rb_execution_context_t *ec, VALUE recv, ID id, int argc, const VALUE *argv, const rb_callable_method_entry_t *me)
{
struct rb_calling_info calling_entry, *calling;
@@ -252,6 +254,8 @@ rb_current_receiver(void)
return cfp->self;
}
+#endif /* #ifndef MJIT_HEADER */
+
static inline void
stack_check(rb_execution_context_t *ec)
{
@@ -262,6 +266,8 @@ stack_check(rb_execution_context_t *ec)
}
}
+#ifndef MJIT_HEADER
+
static inline const rb_callable_method_entry_t *rb_search_method_entry(VALUE recv, ID mid);
static inline enum method_missing_reason rb_method_call_status(rb_execution_context_t *ec, const rb_callable_method_entry_t *me, call_type scope, VALUE self);
@@ -633,7 +639,7 @@ rb_method_missing(int argc, const VALUE *argv, VALUE obj)
UNREACHABLE;
}
-static VALUE
+MJIT_FUNC_EXPORTED VALUE
make_no_method_exception(VALUE exc, VALUE format, VALUE obj,
int argc, const VALUE *argv, int priv)
{
@@ -659,6 +665,8 @@ make_no_method_exception(VALUE exc, VALUE format, VALUE obj,
return rb_class_new_instance(n, args, exc);
}
+#endif /* #ifndef MJIT_HEADER */
+
static void
raise_method_missing(rb_execution_context_t *ec, int argc, const VALUE *argv, VALUE obj,
enum method_missing_reason last_call_status)
@@ -740,6 +748,8 @@ method_missing(VALUE obj, ID id, int argc, const VALUE *argv, enum method_missin
return result;
}
+#ifndef MJIT_HEADER
+
/*!
* Calls a method
* \param recv receiver of the method
@@ -2175,3 +2185,5 @@ Init_vm_eval(void)
id_tag = rb_intern_const("tag");
id_value = rb_intern_const("value");
}
+
+#endif /* #ifndef MJIT_HEADER */