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Add an option to make SetCC illegal as a beta option

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22979 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2005-08-23 05:42:36 +00:00
parent 7042f15bde
commit a50d53e5ef
1 changed files with 10 additions and 0 deletions
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10
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -17,9 +17,15 @@
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Function.h"
#include "llvm/Support/CommandLine.h"
using namespace llvm;
namespace llvm {
cl::opt<bool> SetCCIllegal("-ppc-setcc-is-illegal", cl::Hidden,
cl::desc("Make ISD::SETCC illegal on PowerPC"));
}
PPC32TargetLowering::PPC32TargetLowering(TargetMachine &TM)
: TargetLowering(TM) {
@ -78,6 +84,10 @@ PPC32TargetLowering::PPC32TargetLowering(TargetMachine &TM)
setOperationAction(ISD::SINT_TO_FP, MVT::i32, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand);
// PowerPC does not have SETCC
if (SetCCIllegal)
setOperationAction(ISD::SETCC, MVT::i32, Expand);
setSetCCResultContents(ZeroOrOneSetCCResult);
addLegalFPImmediate(+0.0); // Necessary for FSEL
addLegalFPImmediate(-0.0); //