[PATCH] D45137: [LTO] 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: pcc, mehdi_amini.
Herald added subscribers: eraman, inglorion.

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.

Note: This patch is one of a series of patches to replace *all* std::sort to llvm::sort.
Refer https://reviews.llvm.org/D44363 for a list of all the required patches.


Repository:
  rL LLVM

https://reviews.llvm.org/D45137

Files:
  lib/LTO/ThinLTOCodeGenerator.cpp


Index: lib/LTO/ThinLTOCodeGenerator.cpp
===================================================================
--- lib/LTO/ThinLTOCodeGenerator.cpp
+++ lib/LTO/ThinLTOCodeGenerator.cpp
@@ -950,12 +950,12 @@
   std::vector<int> ModulesOrdering;
   ModulesOrdering.resize(Modules.size());
   std::iota(ModulesOrdering.begin(), ModulesOrdering.end(), 0);
-  std::sort(ModulesOrdering.begin(), ModulesOrdering.end(),
-            [&](int LeftIndex, int RightIndex) {
-              auto LSize = Modules[LeftIndex].getBuffer().size();
-              auto RSize = Modules[RightIndex].getBuffer().size();
-              return LSize > RSize;
-            });
+  llvm::sort(ModulesOrdering.begin(), ModulesOrdering.end(),
+             [&](int LeftIndex, int RightIndex) {
+               auto LSize = Modules[LeftIndex].getBuffer().size();
+               auto RSize = Modules[RightIndex].getBuffer().size();
+               return LSize > RSize;
+             });
 
   // Parallel optimizer + codegen
   {


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D45137.140565.patch
Type: text/x-patch
Size: 997 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20180401/a9e0a5a6/attachment.bin>