[PATCH] D44853: [AArch64] Change std::sort to llvm::sort in response to r327219

[Mandeep Singh Grang via Phabricator via llvm-commits]

mgrang created this revision.
mgrang added reviewers: t.p.northover, jmolloy.
Herald added subscribers: kristof.beyls, javed.absar, rengolin.

r327219 added wrappers to std::sort which randomly shuffle the container before sorting.
This will help in uncovering non-determinism caused due to undefined sorting
order of objects having the same key.

To make use of that infrastructure we need to invoke llvm::sort instead of std::sort.


Repository:
  rL LLVM

https://reviews.llvm.org/D44853

Files:
  lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp


Index: lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp
===================================================================
--- lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp
+++ lib/Target/AArch64/AArch64A57FPLoadBalancing.cpp
@@ -375,9 +375,9 @@
 
   // Now we have a set of sets, order them by start address so
   // we can iterate over them sequentially.
-  std::sort(V.begin(), V.end(),
-            [](const std::vector<Chain*> &A,
-               const std::vector<Chain*> &B) {
+  llvm::sort(V.begin(), V.end(),
+             [](const std::vector<Chain*> &A,
+                const std::vector<Chain*> &B) {
       return A.front()->startsBefore(B.front());
     });
 
@@ -451,7 +451,7 @@
   // change them to!
   // Final tie-break with instruction order so pass output is stable (i.e. not
   // dependent on malloc'd pointer values).
-  std::sort(GV.begin(), GV.end(), [](const Chain *G1, const Chain *G2) {
+  llvm::sort(GV.begin(), GV.end(), [](const Chain *G1, const Chain *G2) {
       if (G1->size() != G2->size())
         return G1->size() > G2->size();
       if (G1->requiresFixup() != G2->requiresFixup())


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