[x86] lower calls to llvm.maxnum.v4f32 using maxps

[oota-llvm.git] / lib / Support / ScaledNumber.cpp

diff --git a/lib/Support/ScaledNumber.cpp b/lib/Support/ScaledNumber.cpp
index fc6d4e7be43a5baaaa3667f7029eec72a3f45b7f..987c2d803b7e419c7f4821baedaad920ace35770 100644 (file)
--- a/lib/Support/ScaledNumber.cpp
+++ b/lib/Support/ScaledNumber.cpp
@@ -12,9 +12,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/ScaledNumber.h"
-
 #include "llvm/ADT/APFloat.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
 
 using namespace llvm;
 using namespace llvm::ScaledNumbers;
@@ -169,6 +169,7 @@ static std::string toStringAPFloat(uint64_t D, int E, unsigned Precision) {
   int Shift = 63 - (NewE - E);
   assert(Shift <= LeadingZeros);
   assert(Shift == LeadingZeros || NewE == ScaledNumbers::MaxScale);
+  assert(Shift >= 0 && Shift < 64 && "undefined behavior");
   D <<= Shift;
   E = NewE;