Disable some compile-time optimizations on PPC
long double.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42958 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 3e798bc..eb6e603 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -965,6 +965,9 @@
}
if (ConstantFPSDNode *N1C = dyn_cast<ConstantFPSDNode>(N1.Val))
if (ConstantFPSDNode *N2C = dyn_cast<ConstantFPSDNode>(N2.Val)) {
+ // No compile time operations on this type yet.
+ if (N1C->getValueType(0) == MVT::ppcf128)
+ return SDOperand();
APFloat::cmpResult R = N1C->getValueAPF().compare(N2C->getValueAPF());
switch (Cond) {
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp
index 8234900..485b428 100644
--- a/lib/VMCore/ConstantFold.cpp
+++ b/lib/VMCore/ConstantFold.cpp
@@ -149,6 +149,9 @@
return Constant::getNullValue(DestTy);
return UndefValue::get(DestTy);
}
+ // No compile-time operations on this type yet.
+ if (V->getType() == Type::PPC_FP128Ty || DestTy == Type::PPC_FP128Ty)
+ return 0;
// If the cast operand is a constant expression, there's a few things we can
// do to try to simplify it.
@@ -808,6 +811,11 @@
const Constant *V2) {
assert(V1->getType() == V2->getType() &&
"Cannot compare values of different types!");
+
+ // No compile-time operations on this type yet.
+ if (V1->getType() == Type::PPC_FP128Ty)
+ return FCmpInst::BAD_FCMP_PREDICATE;
+
// Handle degenerate case quickly
if (V1 == V2) return FCmpInst::FCMP_OEQ;
@@ -1095,6 +1103,10 @@
if (isa<UndefValue>(C1) || isa<UndefValue>(C2))
return UndefValue::get(Type::Int1Ty);
+ // No compile-time operations on this type yet.
+ if (C1->getType() == Type::PPC_FP128Ty)
+ return 0;
+
// icmp eq/ne(null,GV) -> false/true
if (C1->isNullValue()) {
if (const GlobalValue *GV = dyn_cast<GlobalValue>(C2))