tdf#64991 speed up loading large RTL documents

takes load time from 20s to 17s for me

Several loops are very hot, so store the count()/size() value,
instead of calling it on every iteration.


Change-Id: I8c0b01721d27e4335dd613cf276dcdd0103633ce
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/120945
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

3 files changed, 12 insertions, 8 deletions

diff --git a/sw/source/core/text/itratr.cxx b/sw/source/core/text/itratr.cxx
index 5434e0038ac0..f76f15254e9f 100644
--- a/sw/source/core/text/itratr.cxx
+++ b/sw/source/core/text/itratr.cxx
@@ -260,6 +260,7 @@ void SwAttrIter::SeekFwd(const sal_Int32 nOldPos, const sal_Int32 nNewPos)
 {
     SwpHints const*const pHints(m_pTextNode->GetpSwpHints());
     SwTextAttr *pTextAttr;
+    const auto nHintsCount = pHints->Count();
 
     if ( m_nStartIndex ) // If attributes have been opened at all ...
     {
@@ -267,7 +268,7 @@ void SwAttrIter::SeekFwd(const sal_Int32 nOldPos, const sal_Int32 nNewPos)
 
         // As long as we've not yet reached the end of EndArray and the
         // TextAttribute ends before or at the new position ...
-        while ((m_nEndIndex < pHints->Count()) &&
+        while ((m_nEndIndex < nHintsCount) &&
                ((pTextAttr = pHints->GetSortedByEnd(m_nEndIndex))->GetAnyEnd() <= nNewPos))
         {
             // Close the TextAttributes, whose StartPos were before or at
@@ -278,7 +279,7 @@ void SwAttrIter::SeekFwd(const sal_Int32 nOldPos, const sal_Int32 nNewPos)
     }
     else // skip the not opened ends
     {
-        while ((m_nEndIndex < pHints->Count()) &&
+        while ((m_nEndIndex < nHintsCount) &&
                (pHints->GetSortedByEnd(m_nEndIndex)->GetAnyEnd() <= nNewPos))
         {
             m_nEndIndex++;
@@ -287,7 +288,7 @@ void SwAttrIter::SeekFwd(const sal_Int32 nOldPos, const sal_Int32 nNewPos)
 
     // As long as we've not yet reached the end of EndArray and the
     // TextAttribute ends before or at the new position...
-    while ((m_nStartIndex < pHints->Count()) &&
+    while ((m_nStartIndex < nHintsCount) &&
             ((pTextAttr = pHints->Get(m_nStartIndex))->GetStart() <= nNewPos))
     {
 
diff --git a/sw/source/core/text/pormulti.cxx b/sw/source/core/text/pormulti.cxx
index 1ea089b106e1..ee1595496a6c 100644
--- a/sw/source/core/text/pormulti.cxx
+++ b/sw/source/core/text/pormulti.cxx
@@ -860,12 +860,14 @@ namespace sw {
         }
         if (m_pMerged)
         {
-            while (m_CurrentExtent < m_pMerged->extents.size())
+            const auto nExtentsSize = m_pMerged->extents.size();
+            while (m_CurrentExtent < nExtentsSize)
             {
                 sw::Extent const& rExtent(m_pMerged->extents[m_CurrentExtent]);
                 if (SwpHints const*const pHints = rExtent.pNode->GetpSwpHints())
                 {
-                    while (m_CurrentHint < pHints->Count())
+                    auto nHintsCount = pHints->Count();
+                    while (m_CurrentHint < nHintsCount)
                     {
                         SwTextAttr const*const pHint(pHints->Get(m_CurrentHint));
                         if (rExtent.nEnd < pHint->GetStart())
@@ -881,7 +883,7 @@ namespace sw {
                     }
                 }
                 ++m_CurrentExtent;
-                if (m_CurrentExtent < m_pMerged->extents.size() &&
+                if (m_CurrentExtent < nExtentsSize &&
                     rExtent.pNode != m_pMerged->extents[m_CurrentExtent].pNode)
                 {
                     m_CurrentHint = 0; // reset
diff --git a/sw/source/core/unocore/unoportenum.cxx b/sw/source/core/unocore/unoportenum.cxx
index f02b880f00b8..b53d1d79c520 100644
--- a/sw/source/core/unocore/unoportenum.cxx
+++ b/sw/source/core/unocore/unoportenum.cxx
@@ -710,7 +710,8 @@ lcl_ExportHints(
     //search for special text attributes - first some ends
     size_t nEndIndex = 0;
     sal_Int32 nNextEnd = 0;
-    while(nEndIndex < pHints->Count() &&
+    const auto nHintsCount = pHints->Count();
+    while(nEndIndex < nHintsCount &&
         (!pHints->GetSortedByEnd(nEndIndex)->GetEnd() ||
         nCurrentIndex >= (nNextEnd = (*pHints->GetSortedByEnd(nEndIndex)->GetEnd()))))
     {
@@ -791,7 +792,7 @@ lcl_ExportHints(
     // then some starts
     size_t nStartIndex = 0;
     sal_Int32 nNextStart = 0;
-    while(nStartIndex < pHints->Count() &&
+    while(nStartIndex < nHintsCount &&
         nCurrentIndex >= (nNextStart = pHints->Get(nStartIndex)->GetStart()))
     {
         SwTextAttr * const pAttr = pHints->Get(nStartIndex);