[ADT] Enable reverse iteration for DenseMap

Reviewers: mehdi_amini, dexonsmith, dblaikie, davide, chandlerc, davidxl, echristo, efriedma

Reviewed By: dblaikie

Subscribers: rsmith, mgorny, emaste, llvm-commits

Differential Revision: https://reviews.llvm.org/D35043

llvm-svn: 311730

1 files changed, 0 insertions, 11 deletions

diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index 50173f5256b..8fb01211e97 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -46,17 +46,6 @@ using namespace cl;
 
 #define DEBUG_TYPE "commandline"
 
-#if LLVM_ENABLE_ABI_BREAKING_CHECKS
-namespace llvm {
-// If LLVM_ENABLE_ABI_BREAKING_CHECKS is set the flag -mllvm -reverse-iterate
-// can be used to toggle forward/reverse iteration of unordered containers.
-// This will help uncover differences in codegen caused due to undefined
-// iteration order.
-static cl::opt<bool, true> ReverseIteration("reverse-iterate",
-  cl::location(ReverseIterate<bool>::value));
-}
-#endif
-
 //===----------------------------------------------------------------------===//
 // Template instantiations and anchors.
 //