Make APFloat constructor require explicit semantics.
Previously we tried to infer it from the bit width size, with an added
IsIEEE argument for the PPC/IEEE 128-bit case, which had a default
value. This default value allowed bugs to creep in, where it was
inappropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173138 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/ConstantFold.cpp b/lib/IR/ConstantFold.cpp
index 0ffb24e..417e0d1 100644
--- a/lib/IR/ConstantFold.cpp
+++ b/lib/IR/ConstantFold.cpp
@@ -168,8 +168,8 @@
if (DestTy->isFloatingPointTy())
return ConstantFP::get(DestTy->getContext(),
- APFloat(CI->getValue(),
- !DestTy->isPPC_FP128Ty()));
+ APFloat(DestTy->getFltSemantics(),
+ CI->getValue()));
// Otherwise, can't fold this (vector?)
return 0;
@@ -647,8 +647,8 @@
case Instruction::SIToFP:
if (ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
APInt api = CI->getValue();
- APFloat apf(APInt::getNullValue(DestTy->getPrimitiveSizeInBits()),
- !DestTy->isPPC_FP128Ty() /* isEEEE */);
+ APFloat apf(DestTy->getFltSemantics(),
+ APInt::getNullValue(DestTy->getPrimitiveSizeInBits()));
(void)apf.convertFromAPInt(api,
opc==Instruction::SIToFP,
APFloat::rmNearestTiesToEven);