diff --git a/lib/Transforms/IPO/FunctionAttrs.cpp b/lib/Transforms/IPO/FunctionAttrs.cpp
index bc5109b4d48..79ce3c33057 100644
--- a/lib/Transforms/IPO/FunctionAttrs.cpp
+++ b/lib/Transforms/IPO/FunctionAttrs.cpp
@@ -1004,6 +1004,7 @@ bool FunctionAttrs::inferPrototypeAttributes(Function &F) {
       return false;
     setDoesNotThrow(F);
     setDoesNotCapture(F, 3);
+    break;
   case LibFunc::fread:
   case LibFunc::fwrite:
     if (FTy->getNumParams() != 4 ||
@@ -1013,6 +1014,7 @@ bool FunctionAttrs::inferPrototypeAttributes(Function &F) {
     setDoesNotThrow(F);
     setDoesNotCapture(F, 1);
     setDoesNotCapture(F, 4);
+    break;
   case LibFunc::fputs:
   case LibFunc::fscanf:
   case LibFunc::fprintf: