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vm_insnhelper.h: simplify EXEC_EC_CFP implementation

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and possibly memory access for iseq->body may be reduced.

No significant impact for performance on Optcarrot.

* before
fps: 55.03865935187656
fps: 57.16854675983188
fps: 57.672458407661765
fps: 58.28989837869383
fps: 58.80503815099268
fps: 59.068054176528534
fps: 59.55736806358244
fps: 61.01018920533034
fps: 63.34167049232186
fps: 65.20575018321766
fps: 65.46758316561318

* after
fps: 55.21860411005677
fps: 55.34840351179166
fps: 58.23666596747484
fps: 59.71987124578901
fps: 61.131485120234935
fps: 61.279905164649485
fps: 61.66060774175459
fps: 64.11215576508765
fps: 64.63699742853154
fps: 65.28260058920769
fps: 65.85447796482678

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64711 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
k0kubun 2018-09-13 06:39:40 +00:00
parent 14ad11a963
commit bada0d24eb
4 changed files with 7 additions and 9 deletions
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4
mjit.h
View file

@ -89,7 +89,7 @@ mjit_target_iseq_p(struct rb_iseq_constant_body *body)
/* Try to execute the current iseq in ec. Use JIT code if it is ready.
If it is not, add ISEQ to the compilation queue and return Qundef. */
static inline VALUE
mjit_exec(rb_execution_context_t *ec)
mjit_exec(rb_execution_context_t *ec, int guard_except_p)
{
const rb_iseq_t *iseq;
struct rb_iseq_constant_body *body;
@ -102,6 +102,8 @@ mjit_exec(rb_execution_context_t *ec)
iseq = ec->cfp->iseq;
body = iseq->body;
total_calls = ++body->total_calls;
if (guard_except_p && body->catch_except_p)
return Qundef;
func = body->jit_func;
if (UNLIKELY((uintptr_t)func <= (uintptr_t)LAST_JIT_ISEQ_FUNC)) {

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

@ -60,7 +60,7 @@
fprintf(f, " v = vm_exec(ec, TRUE);\n");
}
else {
fprintf(f, " if ((v = mjit_exec(ec)) == Qundef) {\n");
fprintf(f, " if ((v = mjit_exec(ec, FALSE)) == Qundef) {\n");
fprintf(f, " VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_FINISH);\n"); /* This is vm_call0_body's code after vm_call_iseq_setup */
fprintf(f, " v = vm_exec(ec, FALSE);\n");
fprintf(f, " }\n");

2
vm.c
View file

@ -1806,7 +1806,7 @@ vm_exec(rb_execution_context_t *ec, int mjit_enable_p)
_tag.retval = Qnil;
if ((state = EC_EXEC_TAG()) == TAG_NONE) {
if (!mjit_enable_p || (result = mjit_exec(ec)) == Qundef) {
if (!mjit_enable_p || (result = mjit_exec(ec, FALSE)) == Qundef) {
result = vm_exec_core(ec, initial);
}
goto vm_loop_start; /* fallback to the VM */

8
vm_insnhelper.h
View file

@ -144,11 +144,7 @@ enum vm_regan_acttype {
the caller frame may have stack values in the local variables and the cancelling
the caller frame will purge them. But directly calling mjit_exec is faster... */
#define EXEC_EC_CFP(val) do { \
if (ec->cfp->iseq->body->catch_except_p) { \
VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_FINISH); \
val = vm_exec(ec, TRUE); \
} \
else if ((val = mjit_exec(ec)) == Qundef) { \
if ((val = mjit_exec(ec, TRUE)) == Qundef) { \
VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_FINISH); \
val = vm_exec(ec, FALSE); \
} \
@ -157,7 +153,7 @@ enum vm_regan_acttype {
/* When calling from VM, longjmp in the callee won't purge any JIT-ed caller frames.
So it's safe to directly call mjit_exec. */
#define EXEC_EC_CFP(val) do { \
if ((val = mjit_exec(ec)) == Qundef) { \
if ((val = mjit_exec(ec, FALSE)) == Qundef) { \
RESTORE_REGS(); \
NEXT_INSN(); \
} \