From a6acf5fede56f4d2535b3c30bcc5824bf805c143 Mon Sep 17 00:00:00 2001
From: Henning Baldersheim <balder@yahoo-inc.com>
Date: Tue, 22 Nov 2016 11:14:42 +0000
Subject: Split up to avoid internal compiler error on gcc 6.2i with -Os

---
 .../src/apps/docstore/create-idx-from-dat.cpp      | 63 ++++++++++++----------
 1 file changed, 36 insertions(+), 27 deletions(-)

(limited to 'searchlib/src/apps')

diff --git a/searchlib/src/apps/docstore/create-idx-from-dat.cpp b/searchlib/src/apps/docstore/create-idx-from-dat.cpp
index 66661b6468d..8b02a9bad30 100644
--- a/searchlib/src/apps/docstore/create-idx-from-dat.cpp
+++ b/searchlib/src/apps/docstore/create-idx-from-dat.cpp
@@ -15,8 +15,6 @@ class CreateIdxFileFromDatApp : public FastOS_Application
     int Main(void);
 };
 
-
-
 void
 CreateIdxFileFromDatApp::usage(void)
 {
@@ -24,6 +22,7 @@ CreateIdxFileFromDatApp::usage(void)
     fflush(stdout);
 }
 
+namespace {
 bool tryDecode(size_t chunks, size_t offset, const char * p, size_t sz, size_t nextSync)
 {
     bool success(false);
@@ -51,6 +50,37 @@ bool validHead(const char * n, size_t offset) {
     return (n[0] == 0) && (validUncompressed(n, offset));
 }
 
+size_t
+generate(size_t serialNum, size_t chunks, FastOS_FileInterface & idxFile, size_t sz, const char * current, const char * start, const char * nextStart) __attribute__((noinline));
+size_t
+generate(size_t serialNum, size_t chunks, FastOS_FileInterface & idxFile, size_t sz, const char * current, const char * start, const char * nextStart)
+{
+    vespalib::nbostream os;
+    for (size_t lengthError(0); int64_t(sz+lengthError) <= nextStart-start; lengthError++) {
+        try {
+            Chunk chunk(chunks, current, sz + lengthError, false);
+            fprintf(stdout, "id=%d lastSerial=%ld count=%ld\n", chunk.getId(), chunk.getLastSerial(), chunk.count());
+            const Chunk::LidList & lidlist = chunk.getLids();
+            if (chunk.getLastSerial() < serialNum) {
+                fprintf(stdout, "Serial num grows down prev=%ld, current=%ld\n", serialNum, chunk.getLastSerial());
+            }
+            serialNum = std::max(serialNum, chunk.getLastSerial());
+            ChunkMeta cmeta(current-start, sz + lengthError, serialNum, chunk.count());
+            cmeta.serialize(os);
+            for (auto it(lidlist.begin()); it != lidlist.end(); it++) {
+                LidMeta lm(it->getLid(), it->netSize());
+                lm.serialize(os);
+            }
+            break;
+        } catch (const vespalib::Exception & e) {
+            fprintf(stdout, "Failed with lengthError %ld due to '%s'\n", lengthError, e.what());
+        }
+    }
+    idxFile.Write2(os.c_str(), os.size());
+    return serialNum;
+}
+
+}
 int CreateIdxFileFromDatApp::createIdxFile(const vespalib::string & datFileName, const vespalib::string & idxFileName)
 {
     MMapRandRead datFile(datFileName, 0, 0);
@@ -94,35 +124,14 @@ int CreateIdxFileFromDatApp::createIdxFile(const vespalib::string & datFileName,
             }
             uint64_t sz = tail - current;
             fprintf(stdout, "Most likely found chunk at offset %ld with length %ld\n", current - start, sz);
-            vespalib::nbostream os;
-            for (size_t lengthError(0); int64_t(sz+lengthError) <= nextStart-start; lengthError++) {
-                try {
-                    Chunk chunk(chunks, current, sz + lengthError, false);
-                    fprintf(stdout, "id=%d lastSerial=%ld count=%ld\n", chunk.getId(), chunk.getLastSerial(), chunk.count());
-                    const Chunk::LidList & lidlist = chunk.getLids();
-                    if (chunk.getLastSerial() < serialNum) {
-                        fprintf(stdout, "Serial num grows down prev=%ld, current=%ld\n", serialNum, chunk.getLastSerial());
-                    }
-                    serialNum = std::max(serialNum, chunk.getLastSerial());
-                    ChunkMeta cmeta(current-start, sz + lengthError, serialNum, chunk.count());
-                    cmeta.serialize(os);
-                    for (auto it(lidlist.begin()); it != lidlist.end(); it++) {
-                        LidMeta lm(it->getLid(), it->netSize());
-                        lm.serialize(os);
-                    }
-                    break;
-                } catch (const vespalib::Exception & e) {
-                    fprintf(stdout, "Failed with lengthError %ld due to '%s'\n", lengthError, e.what());
-                }
-            }
-            idxFile.Write2(os.c_str(), os.size());
+            serialNum = generate(serialNum, chunks,idxFile, sz, current, start, nextStart);
             chunks++;
             for(current += alignment; current < tail; current += alignment);
         } else {
             current += alignment;
         }
-        //fprintf(stdout, "Next is most likely at offset %ld tail(%p)\n", current - start, tail);
-/*
+#if 0
+        fprintf(stdout, "Next is most likely at offset %ld tail(%p)\n", current - start, tail);
         ChunkMeta cm;
         cm.deserialize(is);
         fprintf(stdout, "Chunk(%ld) : LastSerial(%ld), Entries(%d), Offset(%ld), Size(%d)\n",
@@ -132,7 +141,7 @@ int CreateIdxFileFromDatApp::createIdxFile(const vespalib::string & datFileName,
             lm.deserialize(is);
             fprintf(stdout, "Entry(%ld.%ld) : Lid(%d), Size(%d)\n", chunk, i, lm.getLid(), lm.size());
         }
-*/
+#endif
     }
     fprintf(stdout, "Processed %ld chunks with total entries = %ld\n", chunks, entries);
     return 0;
-- 
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