commit 6c99015fe2c1814f793530adc96f48050081612e
author Duncan P. N. Exon Smith <dexonsmith@apple.com> Mon Jul 21 17:06:51 2014 +0000
committer Duncan P. N. Exon Smith <dexonsmith@apple.com> Mon Jul 21 17:06:51 2014 +0000
tree 6dd9bd97817fed538386fcedbf363d38470ace2a
parent 1aaad6970cee96c214cc663bc7ae2cecb6fd1e7c

Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."

This reverts commit r213474 (and r213475), which causes a miscompile on
a stage2 LTO build.  I'll reply on the list in a moment.

llvm-svn: 213562

llvm/lib/CodeGen/UnreachableBlockElim.cpp

diff --git a/llvm/lib/CodeGen/UnreachableBlockElim.cpp b/llvm/lib/CodeGen/UnreachableBlockElim.cpp
index 0476a12..2e22082 100644
--- a/llvm/lib/CodeGen/UnreachableBlockElim.cpp
+++ b/llvm/lib/CodeGen/UnreachableBlockElim.cpp
@@ -79,8 +79,8 @@
         PN->replaceAllUsesWith(Constant::getNullValue(PN->getType()));
         BB->getInstList().pop_front();
       }
-      for (BasicBlock *S : successors(BB))
-        S->removePredecessor(BB);
+      for (succ_iterator SI = succ_begin(BB), E = succ_end(BB); SI != E; ++SI)
+        (*SI)->removePredecessor(BB);
       BB->dropAllReferences();
     }