[PATCH] D62193: [MergeICmps] Make sorting strongly stable on the rhs.

[Clement Courbet via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL361281: [MergeICmps] Make sorting strongly stable on the rhs. (authored by courbet, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D62193?vs=200490&id=200544#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62193/new/

https://reviews.llvm.org/D62193

Files:
  llvm/trunk/lib/Transforms/Scalar/MergeICmps.cpp


Index: llvm/trunk/lib/Transforms/Scalar/MergeICmps.cpp
===================================================================
--- llvm/trunk/lib/Transforms/Scalar/MergeICmps.cpp
+++ llvm/trunk/lib/Transforms/Scalar/MergeICmps.cpp
@@ -507,7 +507,8 @@
   // semantics because we are only accessing dereferencable memory.
   llvm::sort(Comparisons_,
              [](const BCECmpBlock &LhsBlock, const BCECmpBlock &RhsBlock) {
-               return LhsBlock.Lhs() < RhsBlock.Lhs();
+               return std::tie(LhsBlock.Lhs(), LhsBlock.Rhs()) <
+                      std::tie(RhsBlock.Lhs(), RhsBlock.Rhs());
              });
 #ifdef MERGEICMPS_DOT_ON
   errs() << "AFTER REORDERING:\n\n";


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