commit efd94c56badf696ed7193f4a83c7a59f7dfbfc6e
author Fangrui Song <maskray@google.com> Tue Apr 23 14:51:27 2019 +0000
committer Fangrui Song <maskray@google.com> Tue Apr 23 14:51:27 2019 +0000
tree 63f7a8a57c367cf6ba845a80eda9177b62c516be
parent 99cf58339fceadee43ba3fdbf962a083cd5af6c4

Use llvm::stable_sort

While touching the code, simplify if feasible.

llvm-svn: 358996

llvm/lib/Transforms/Scalar/Reassociate.cpp

diff --git a/llvm/lib/Transforms/Scalar/Reassociate.cpp b/llvm/lib/Transforms/Scalar/Reassociate.cpp
index 34066ae..7cdfce8 100644
--- a/llvm/lib/Transforms/Scalar/Reassociate.cpp
+++ b/llvm/lib/Transforms/Scalar/Reassociate.cpp
@@ -1328,8 +1328,7 @@
   //     So, if Rank(X) < Rank(Y) < Rank(Z), it means X is defined earlier
   //     than Y which is defined earlier than Z. Permute "x | 1", "Y & 2",
   //     "z" in the order of X-Y-Z is better than any other orders.
-  std::stable_sort(OpndPtrs.begin(), OpndPtrs.end(),
-                   [](XorOpnd *LHS, XorOpnd *RHS) {
+  llvm::stable_sort(OpndPtrs, [](XorOpnd *LHS, XorOpnd *RHS) {
     return LHS->getSymbolicRank() < RHS->getSymbolicRank();
   });
 
@@ -1686,8 +1685,7 @@
   // below our mininum of '4'.
   assert(FactorPowerSum >= 4);
 
-  std::stable_sort(Factors.begin(), Factors.end(),
-                   [](const Factor &LHS, const Factor &RHS) {
+  llvm::stable_sort(Factors, [](const Factor &LHS, const Factor &RHS) {
     return LHS.Power > RHS.Power;
   });
   return true;
@@ -2141,7 +2139,7 @@
   // positions maintained (and so the compiler is deterministic).  Note that
   // this sorts so that the highest ranking values end up at the beginning of
   // the vector.
-  std::stable_sort(Ops.begin(), Ops.end());
+  llvm::stable_sort(Ops);
 
   // Now that we have the expression tree in a convenient
   // sorted form, optimize it globally if possible.