Enable/silence -Wconversion.

llvm-svn: 152328

libcxxabi/lib/buildit

@@ -28,7 +28,7 @@ then
 fi
 
 EXTRA_FLAGS="-std=c++0x -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 \
-             -Wsign-conversion -Wshadow -Wnewline-eof"
+             -Wsign-conversion -Wshadow -Wconversion -Wnewline-eof"
 
 case $TRIPLE in
   *-apple-*)

libcxxabi/src/cxa_demangle.cpp

@@ -460,7 +460,7 @@ class __source_name
     : public __node
 {
 public:
-    __source_name(const char* __name, unsigned __size)
+    __source_name(const char* __name, size_t __size)
     {
         __name_ = __name;
         __size_ = __size;
@@ -5962,7 +5962,7 @@ class __dot_suffix
     : public __node
 {
 public:
-    __dot_suffix(__node* name, const char* suffix, unsigned sz)
+    __dot_suffix(__node* name, const char* suffix, size_t sz)
     {
         __left_ = name;
         __name_ = suffix;
@@ -10259,7 +10259,7 @@ __demangle_tree::__parse_nested_name(const char* first, const char* last)
                 }
                 break;
             case 'U':
-                assert(!"__parse_nested_name U");
+                // assert(!"__parse_nested_name U");
                 // could have following <template-args>
                 break;
             case 'T':

libcxxabi/src/cxa_personality.cpp

@@ -247,7 +247,7 @@ readEncodedPointer(const uint8_t** data, uint8_t encoding)
         p += sizeof(uint32_t);
         break;
     case DW_EH_PE_udata8:
-        result = *((uint64_t*)p);
+        result = static_cast<uintptr_t>(*((uint64_t*)p));
         p += sizeof(uint64_t);
         break;
     case DW_EH_PE_sdata2:
@@ -527,7 +527,7 @@ scan_eh_tab(scan_results& results, _Unwind_Action actions, bool native_exception
     // Walk call-site table looking for range that 
     // includes current PC. 
     uint8_t callSiteEncoding = *lsda++;
-    uint32_t callSiteTableLength = readULEB128(&lsda);
+    uint32_t callSiteTableLength = static_cast<uint32_t>(readULEB128(&lsda));
     const uint8_t* callSiteTableStart = lsda;
     const uint8_t* callSiteTableEnd = callSiteTableStart + callSiteTableLength;
     const uint8_t* actionTableStart = callSiteTableEnd;

libcxxabi/src/fallback_malloc.ipp

@@ -54,7 +54,7 @@ heap_node *node_from_offset ( const heap_offset offset )
     { return (heap_node *) ( heap + ( offset * sizeof (heap_node))); }
 
 heap_offset offset_from_node ( const heap_node *ptr )
-    { return static_cast<size_t>(((char *) ptr ) - heap)  / sizeof (heap_node); }
+    { return static_cast<heap_offset>(static_cast<size_t>(((char *) ptr ) - heap)  / sizeof (heap_node)); }
  
 void init_heap () {
     freelist = (heap_node *) heap;
@@ -87,7 +87,7 @@ void *fallback_malloc(size_t len) {
             p->len -= nelems;
             q = p + p->len;
             q->next_node = 0;
-            q->len = nelems;
+            q->len = static_cast<heap_size>(nelems);
             return (void *) (q + 1);
         }