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Add String#bytesize

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Fixes: https://github.com/Shopify/yjit/issues/258

Co-authored-by: Aaron Patterson tenderlove@ruby-lang.org
This commit is contained in:
eileencodes 2021-10-14 13:48:24 -04:00 committed by Alan Wu
parent 5d2e5218f6
commit 4cad893080
1 changed files with 22 additions and 0 deletions
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22
yjit_codegen.c
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@ -3029,6 +3029,27 @@ jit_rb_obj_equal(jitstate_t *jit, ctx_t *ctx, const struct rb_callinfo *ci, cons
return true; return true;
} }
static VALUE
yjit_str_bytesize(VALUE str)
{
return LONG2NUM(RSTRING_LEN(str));
}
static bool
jit_rb_str_bytesize(jitstate_t *jit, ctx_t *ctx, const struct rb_callinfo *ci, const rb_callable_method_entry_t *cme, rb_iseq_t *block, const int32_t argc, VALUE *known_recv_klass)
{
ADD_COMMENT(cb, "String#bytesize");
x86opnd_t recv = ctx_stack_pop(ctx, 1);
mov(cb, C_ARG_REGS[0], recv);
call_ptr(cb, REG0, (void *)&yjit_str_bytesize);
x86opnd_t out_opnd = ctx_stack_push(ctx, TYPE_FIXNUM);
mov(cb, out_opnd, RAX);
return true;
}
// Codegen for rb_str_to_s() // Codegen for rb_str_to_s()
// When String#to_s is called on a String instance, the method returns self and // When String#to_s is called on a String instance, the method returns self and
// most of the overhead comes from setting up the method call. We observed that // most of the overhead comes from setting up the method call. We observed that
@ -4667,6 +4688,7 @@ yjit_init_codegen(void)
// rb_str_to_s() methods in string.c // rb_str_to_s() methods in string.c
yjit_reg_method(rb_cString, "to_s", jit_rb_str_to_s); yjit_reg_method(rb_cString, "to_s", jit_rb_str_to_s);
yjit_reg_method(rb_cString, "to_str", jit_rb_str_to_s); yjit_reg_method(rb_cString, "to_str", jit_rb_str_to_s);
yjit_reg_method(rb_cString, "bytesize", jit_rb_str_bytesize);
// Thread.current // Thread.current
yjit_reg_method(rb_singleton_class(rb_cThread), "current", jit_thread_s_current); yjit_reg_method(rb_singleton_class(rb_cThread), "current", jit_thread_s_current);