crlib: reduce hashmap memory usage.

build: fixed clang build.

ext/crlib/cr-hashmap.h

@@ -103,8 +103,15 @@ private:
       return hash_ (key) % length;
    }
 
-   void rehash () {
-      auto capacity = (capacity_ << 1);
+   void rehash (size_t targetCapacity) {
+      if (length_ + targetCapacity < capacity_) {
+         return;
+      }
+      auto capacity = capacity_ ? capacity_ : 3;
+
+      while (length_ + targetCapacity > capacity) {
+         capacity *= 2;
+      }
       auto contents = cr::makeUnique <Entries> (capacity);
 
       for (size_t i = 0; i < capacity_; ++i) {
@@ -188,7 +195,7 @@ public:
       for (size_t i = 0; i < capacity_; ++i) {
          contents_[i].used = false;
       }
-      rehash ();
+      rehash (0);
    }
 
    void foreach (Lambda <void (const K &, const V &)> callback) {
@@ -201,8 +208,8 @@ public:
 
 public:
    V &operator [] (const K &key) {
-      if ((length_ << 1) > capacity_) {
-         rehash ();
+      if (length_ >= capacity_) {
+         rehash (length_ << 1);
       }
       auto result = put (key, contents_, capacity_);
 

inc/config.h

@@ -49,7 +49,7 @@ private:
    StringArray m_logos;
    StringArray m_avatars;
 
-   HashMap <uint32, String, Hash <int32>> m_language { 256 };
+   HashMap <uint32, String, Hash <int32>> m_language;
    HashMap <int32, DifficultyData> m_difficulty;
 
    // default tables for personality weapon preferences, overridden by weapon.cfg

meson.build

@@ -95,11 +95,11 @@ if isCLang or isGCC or (isIntel and not isWindows)
             
             if isGCC
                 flagsCompiler += '-fgraphite-identity'
+                flagsLinker += '-flto-partition=none'
             endif
             
             flagsLinker += [
                 '-flto',
-                '-flto-partition=none',
                 '-s',
                 '-Wl,--version-script=../version_script.lds',
                 '-Wl,--gc-sections'