Reuse APInt's getNumWords, which gets rounding right (my ad-hoc solution missed it).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158151 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/TemplateBase.cpp b/lib/AST/TemplateBase.cpp
index 284c1b5..f8dd396 100644
--- a/lib/AST/TemplateBase.cpp
+++ b/lib/AST/TemplateBase.cpp
@@ -61,9 +61,10 @@
Integer.BitWidth = Value.getBitWidth();
Integer.IsUnsigned = Value.isUnsigned();
// If the value is large, we have to get additional memory from the ASTContext
- if (Integer.BitWidth > 64) {
- void *Mem = Ctx.Allocate(Integer.BitWidth / 8);
- std::memcpy(Mem, Value.getRawData(), Integer.BitWidth / 8);
+ unsigned NumWords = Value.getNumWords();
+ if (NumWords > 1) {
+ void *Mem = Ctx.Allocate(NumWords * sizeof(uint64_t));
+ std::memcpy(Mem, Value.getRawData(), NumWords * sizeof(uint64_t));
Integer.pVal = static_cast<uint64_t *>(Mem);
} else {
Integer.VAL = Value.getZExtValue();