From: Nicholas Clark <nick@ccl4.org>
Date: Sun, 18 Feb 2007 20:07:39 +0000 (+0000)
Subject: More efficient to call newSV_type() then SvGROW() instead of newSV()
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=7d0a29fec2f8bfc7e48abe23f1ebc308287c59c8;p=p5sagit%2Fp5-mst-13.2.git

More efficient to call newSV_type() then SvGROW() instead of newSV()
with a size then sv_upgrade(), as the latter calls sv_upgrade() twice.

p4raw-id: //depot/perl@30348
---

diff --git a/perl.c b/perl.c
index 4dfea50..c7ed592 100644
--- a/perl.c
+++ b/perl.c
@@ -262,8 +262,8 @@ perl_construct(pTHXx)
     if (!PL_linestr) {
 	PL_curcop = &PL_compiling;	/* needed by ckWARN, right away */
 
-	PL_linestr = newSV(79);
-	sv_upgrade(PL_linestr,SVt_PVIV);
+	PL_linestr = newSV_type(SVt_PVIV);
+	SvGROW(PL_linestr, 80);
 
 	if (!SvREADONLY(&PL_sv_undef)) {
 	    /* set read-only and try to insure than we wont see REFCNT==0
diff --git a/toke.c b/toke.c
index 7719aa5..5248d46 100644
--- a/toke.c
+++ b/toke.c
@@ -11149,8 +11149,8 @@ S_scan_heredoc(pTHX_ register char *s)
 	s--;
 #endif
 
-    tmpstr = newSV(79);
-    sv_upgrade(tmpstr, SVt_PVIV);
+    tmpstr = newSV_type(SVt_PVIV);
+    SvGROW(tmpstr, 80);
     if (term == '\'') {
 	op_type = OP_CONST;
 	SvIV_set(tmpstr, -1);
@@ -11555,8 +11555,8 @@ S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims)
 
     /* create a new SV to hold the contents.  79 is the SV's initial length.
        What a random number. */
-    sv = newSV(79);
-    sv_upgrade(sv, SVt_PVIV);
+    sv = newSV_type(SVt_PVIV);
+    SvGROW(sv, 80);
     SvIV_set(sv, termcode);
     (void)SvPOK_only(sv);		/* validate pointer */