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-rw-r--r--pp_sys.c29
1 files changed, 20 insertions, 9 deletions
diff --git a/pp_sys.c b/pp_sys.c
index f9112ff123..94ac3a4328 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -552,28 +552,39 @@ PP(pp_open)
RETURN;
}
+/* This is private to this function, which is private to this file.
+ Use 0x04 rather than the next available bit, to help the compiler if the
+ architecture can generate more efficient instructions. */
+#define MORTALIZE_NOT_NEEDED 0x04
+
static OP *
S_tied_handle_method(pTHX_ const char *const methname, SV **sp,
- IO *const io, MAGIC *const mg, const U32 gimme,
+ IO *const io, MAGIC *const mg, const U32 flags,
unsigned int argc, ...)
{
PERL_ARGS_ASSERT_TIED_HANDLE_METHOD;
+ assert((MORTALIZE_NOT_NEEDED & G_WANT) == 0);
+
PUSHMARK(sp);
PUSHs(SvTIED_obj(MUTABLE_SV(io), mg));
if (argc) {
+ const U32 mortalize_not_needed = flags & MORTALIZE_NOT_NEEDED;
va_list args;
va_start(args, argc);
do {
SV *const arg = va_arg(args, SV *);
- PUSHs(arg);
+ if(mortalize_not_needed)
+ PUSHs(arg);
+ else
+ mPUSHs(arg);
} while (--argc);
va_end(args);
}
PUTBACK;
ENTER_with_name("call_tied_handle_method");
- call_method(methname, gimme);
+ call_method(methname, flags & G_WANT);
LEAVE_with_name("call_tied_handle_method");
return NORMAL;
}
@@ -751,7 +762,8 @@ PP(pp_binmode)
function, which I don't think that the optimiser will be able to
figure out. Although, as it's a static function, in theory it
could. */
- return S_tied_handle_method(aTHX_ "BINMODE", SP, io, mg, G_SCALAR,
+ return S_tied_handle_method(aTHX_ "BINMODE", SP, io, mg,
+ G_SCALAR|MORTALIZE_NOT_NEEDED,
discp ? 1 : 0, discp);
}
}
@@ -2053,8 +2065,7 @@ PP(pp_eof)
RETPUSHNO;
if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
- return tied_handle_method1("EOF", SP, io, mg,
- sv_2mortal(newSVuv(which)));
+ return tied_handle_method1("EOF", SP, io, mg, newSVuv(which));
}
if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
@@ -2128,13 +2139,13 @@ PP(pp_sysseek)
MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
if (mg) {
#if LSEEKSIZE > IVSIZE
- SV *const offset_sv = sv_2mortal(newSVnv((NV) offset));
+ SV *const offset_sv = newSVnv((NV) offset);
#else
- SV *const offset_sv = sv_2mortal(newSViv(offset));
+ SV *const offset_sv = newSViv(offset);
#endif
return tied_handle_method2("SEEK", SP, io, mg, offset_sv,
- sv_2mortal(newSViv(whence)));
+ newSViv(whence));
}
}