Do not use host floating point types when emitting

ASCII IR; loading and storing these can change the
bits of NaNs on some hosts.  Remove or add warnings
at a few other places using host floating point;
this is a bad thing to do in general.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62712 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 2 insertions, 7 deletions

diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index c296770385..d8d414d7ea 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -599,7 +599,8 @@ APFloat::copySignificand(const APFloat &rhs)
 }
 
 /* Make this number a NaN, with an arbitrary but deterministic value
-   for the significand.  */
+   for the significand.  If double or longer, this is a signalling NaN,
+   which may not be ideal. */
 void
 APFloat::makeNaN(void)
 {
diff --git a/lib/Support/FoldingSet.cpp b/lib/Support/FoldingSet.cpp
index d2b02f240c..3a1a0cd842 100644
--- a/lib/Support/FoldingSet.cpp
+++ b/lib/Support/FoldingSet.cpp
@@ -61,12 +61,6 @@ void FoldingSetNodeID::AddInteger(unsigned long long I) {
   if ((uint64_t)(int)I != I)
     Bits.push_back(unsigned(I >> 32));
 }
-void FoldingSetNodeID::AddFloat(float F) {
-  Bits.push_back(FloatToBits(F));
-}
-void FoldingSetNodeID::AddDouble(double D) {
- AddInteger(DoubleToBits(D));
-}
 
 void FoldingSetNodeID::AddString(const char *String) {
   unsigned Size = static_cast<unsigned>(strlen(String));