1 files changed, 6 insertions, 2 deletions
diff --git a/lib/IR/AsmWriter.cpp b/lib/IR/AsmWriter.cpp
index 3f41a1dc0663..0fafe82404e4 100644
--- a/lib/IR/AsmWriter.cpp
+++ b/lib/IR/AsmWriter.cpp
@@ -1108,10 +1108,12 @@ static void writeAtomicRMWOperation(raw_ostream &Out,
 
 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
   if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
-    // Unsafe algebra implies all the others, no need to write them all out
-    if (FPO->hasUnsafeAlgebra())
+    // 'Fast' is an abbreviation for all fast-math-flags.
+    if (FPO->isFast())
       Out << " fast";
     else {
+      if (FPO->hasAllowReassoc())
+        Out << " reassoc";
       if (FPO->hasNoNaNs())
         Out << " nnan";
       if (FPO->hasNoInfs())
@@ -1122,6 +1124,8 @@ static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
         Out << " arcp";
       if (FPO->hasAllowContract())
         Out << " contract";
+      if (FPO->hasApproxFunc())
+        Out << " afn";
     }
   }