[compiler-rt] r333678 - Fix GCC 4.8.5 build by avoiding braced default member initializer

[Reid Kleckner via llvm-commits]

Author: rnk
Date: Thu May 31 11:26:36 2018
New Revision: 333678

URL: http://llvm.org/viewvc/llvm-project?rev=333678&view=rev
Log:
Fix GCC 4.8.5 build by avoiding braced default member initializer

Use internal_memset instead.  Should revive all Linux Chromium ToT bots.

Modified:
    compiler-rt/trunk/lib/xray/xray_allocator.h

Modified: compiler-rt/trunk/lib/xray/xray_allocator.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/xray/xray_allocator.h?rev=333678&r1=333677&r2=333678&view=diff
==============================================================================
--- compiler-rt/trunk/lib/xray/xray_allocator.h (original)
+++ compiler-rt/trunk/lib/xray/xray_allocator.h Thu May 31 11:26:36 2018
@@ -71,8 +71,15 @@ private:
     static constexpr auto BlockPtrCount =
         (kCacheLineSize / sizeof(Block *)) - 1;
 
+    BlockLink() {
+      // Zero out Blocks.
+      // FIXME: Use a braced member initializer when we drop support for GCC
+      // 4.8.
+      internal_memset(Blocks, 0, sizeof(Blocks));
+    }
+
     // FIXME: Align this to cache-line address boundaries?
-    Block Blocks[BlockPtrCount]{};
+    Block Blocks[BlockPtrCount];
     BlockLink *Prev = nullptr;
   };