[Transforms] Change std::sort to llvm::sort in response to r327219

Summary:
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 the comments section in D44363 for a list of all the required patches.

Reviewers: kcc, pcc, danielcdh, jmolloy, sanjoy, dberlin, ruiu

Reviewed By: ruiu

Subscribers: ruiu, llvm-commits

Differential Revision: https://reviews.llvm.org/D45142

llvm-svn: 330059
diff --git a/llvm/lib/Transforms/IPO/SampleProfile.cpp b/llvm/lib/Transforms/IPO/SampleProfile.cpp
index fd5fce4..6444a31 100644
--- a/llvm/lib/Transforms/IPO/SampleProfile.cpp
+++ b/llvm/lib/Transforms/IPO/SampleProfile.cpp
@@ -679,10 +679,10 @@
       Sum += NameFS.second.getEntrySamples();
       R.push_back(&NameFS.second);
     }
-    std::sort(R.begin(), R.end(),
-              [](const FunctionSamples *L, const FunctionSamples *R) {
-                return L->getEntrySamples() > R->getEntrySamples();
-              });
+    llvm::sort(R.begin(), R.end(),
+               [](const FunctionSamples *L, const FunctionSamples *R) {
+                 return L->getEntrySamples() > R->getEntrySamples();
+               });
   }
   return R;
 }
@@ -1170,13 +1170,13 @@
   SmallVector<InstrProfValueData, 2> R;
   for (auto I = M.begin(); I != M.end(); ++I)
     R.push_back({Function::getGUID(I->getKey()), I->getValue()});
-  std::sort(R.begin(), R.end(),
-            [](const InstrProfValueData &L, const InstrProfValueData &R) {
-              if (L.Count == R.Count)
-                return L.Value > R.Value;
-              else
-                return L.Count > R.Count;
-            });
+  llvm::sort(R.begin(), R.end(),
+             [](const InstrProfValueData &L, const InstrProfValueData &R) {
+               if (L.Count == R.Count)
+                 return L.Value > R.Value;
+               else
+                 return L.Count > R.Count;
+             });
   return R;
 }