Add support for adding 0.0 and -0.0 to the constant pool, since we lie and
say that we support them, for the purposes of generating fsel instructions.
llvm-svn: 20970
diff --git a/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp b/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
index fd4d89d..5582326 100644
--- a/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
+++ b/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
@@ -760,9 +760,17 @@
BuildMI(BB, PPC::FMR, 1, Result).addReg(Tmp1);
return Result;
- case ISD::ConstantFP:
- assert(0 && "ISD::ConstantFP Unimplemented");
- abort();
+ case ISD::ConstantFP: {
+ Tmp1 = MakeReg(MVT::i32);
+ ConstantFPSDNode *CN = cast<ConstantFPSDNode>(N);
+ MachineConstantPool *CP = BB->getParent()->getConstantPool();
+ ConstantFP *CFP = ConstantFP::get(Type::DoubleTy, CN->getValue());
+ unsigned CPI = CP->getConstantPoolIndex(CFP);
+ BuildMI(BB, PPC::LOADHiAddr, 2, Tmp1).addReg(getGlobalBaseReg())
+ .addConstantPoolIndex(CPI);
+ BuildMI(BB, PPC::LFD, 2, Result).addConstantPoolIndex(CPI).addReg(Tmp1);
+ return Result;
+ }
case ISD::MUL:
case ISD::ADD: