[llvm-commits] [llvm] r42958 - in /llvm/trunk/lib: CodeGen/SelectionDAG/SelectionDAG.cpp VMCore/ConstantFold.cpp

[Dale Johannesen]

Author: johannes
Date: Sat Oct 13 20:56:47 2007
New Revision: 42958

URL: http://llvm.org/viewvc/llvm-project?rev=42958&view=rev
Log:
Disable some compile-time optimizations on PPC
long double.


Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    llvm/trunk/lib/VMCore/ConstantFold.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp?rev=42958&r1=42957&r2=42958&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Sat Oct 13 20:56:47 2007
@@ -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) {

Modified: llvm/trunk/lib/VMCore/ConstantFold.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/ConstantFold.cpp?rev=42958&r1=42957&r2=42958&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/ConstantFold.cpp (original)
+++ llvm/trunk/lib/VMCore/ConstantFold.cpp Sat Oct 13 20:56:47 2007
@@ -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))