change `cfunc->invoker` type for opt.

* vm_insnhelper.c: change `call_cfunc_*` parameters order
  and specify a function type for the passed func ptr.
  This fix reduce the number of asm instructions, such as:
    # before this patch
    0000000000000110 <call_cfunc_0>:
     110:       48 89 fa                mov    %rdi,%rdx
     113:       31 c0                   xor    %eax,%eax
     115:       48 89 f7                mov    %rsi,%rdi
     118:       ff e2                   jmpq   *%rdx
     11a:       66 0f 1f 44 00 00       nopw   0x0(%rax,%rax,1)

    # after this patch
    0000000000000110 <call_cfunc_0>:
     110:       ff e1                   jmpq   *%rcx

  However, this kind of instruction reduction doesn't affect
  any performance because of great CPU architectures :p


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/vm_method.c b/vm_method.c
index 76fdb2069f..fcb9f1967e 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -191,7 +191,7 @@ lookup_method_table(VALUE klass, ID id)
 }
 
 static VALUE
-(*call_cfunc_invoker_func(int argc))(VALUE (*func)(ANYARGS), VALUE recv, int argc, const VALUE *)
+(*call_cfunc_invoker_func(int argc))(VALUE recv, int argc, const VALUE *, VALUE (*func)(ANYARGS))
 {
     switch (argc) {
       case -2: return &call_cfunc_m2;