[llvm] r318163 - [XRay] Stable sort XRayRecord to remove non-deterministic ordering

[Mandeep Singh Grang via llvm-commits]

Author: mgrang
Date: Tue Nov 14 10:11:08 2017
New Revision: 318163

URL: http://llvm.org/viewvc/llvm-project?rev=318163&view=rev
Log:
[XRay] Stable sort XRayRecord to remove non-deterministic ordering

Summary:
This fixes failure in tools/llvm-xray/X86/graph-zero-latency-calls.yaml
uncovered by D39245.

Reviewers: dberris

Reviewed By: dberris

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39943

Modified:
    llvm/trunk/lib/XRay/Trace.cpp

Modified: llvm/trunk/lib/XRay/Trace.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/XRay/Trace.cpp?rev=318163&r1=318162&r2=318163&view=diff
==============================================================================
--- llvm/trunk/lib/XRay/Trace.cpp (original)
+++ llvm/trunk/lib/XRay/Trace.cpp Tue Nov 14 10:11:08 2017
@@ -606,7 +606,7 @@ Expected<Trace> llvm::xray::loadTraceFil
   }
 
   if (Sort)
-    std::sort(T.Records.begin(), T.Records.end(),
+    std::stable_sort(T.Records.begin(), T.Records.end(),
               [&](const XRayRecord &L, const XRayRecord &R) {
                 return L.TSC < R.TSC;
               });