When converting to integer, do bit manipulations in the destination

memory rather than in a copy of the APFloat.  This avoids problems
when the destination is wider than our significand and is cleaner.

Also provide deterministic values in all cases where conversion
fails, namely zero for NaNs and the minimal or maximal value
respectively for underflow or overflow.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43626 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 0 deletions

diff --git a/include/llvm/ADT/APFloat.h b/include/llvm/ADT/APFloat.h
index b605faab31..09a9ece140 100644
--- a/include/llvm/ADT/APFloat.h
+++ b/include/llvm/ADT/APFloat.h
@@ -275,6 +275,8 @@ namespace llvm {
     cmpResult compareAbsoluteValue(const APFloat &) const;
     opStatus handleOverflow(roundingMode);
     bool roundAwayFromZero(roundingMode, lostFraction, unsigned int) const;
+    opStatus convertToSignExtendedInteger(integerPart *, unsigned int, bool,
+                                          roundingMode) const;
     opStatus convertFromUnsignedParts(const integerPart *, unsigned int,
                                       roundingMode);
     opStatus convertFromHexadecimalString(const char *, roundingMode);