MipsCodeEmitter.cpp
MipsConstantIslandPass.cpp
MipsDelaySlotFiller.cpp
+ MipsFastISel.cpp
MipsJITInfo.cpp
MipsInstrInfo.cpp
MipsISelDAGToDAG.cpp
--- /dev/null
+//===-- MipsastISel.cpp - Mips FastISel implementation
+//---------------------===//
+
+#include "llvm/CodeGen/FunctionLoweringInfo.h"
+#include "llvm/CodeGen/FastISel.h"
+#include "llvm/Target/TargetLibraryInfo.h"
+#include "MipsISelLowering.h"
+
+using namespace llvm;
+
+namespace {
+
+class MipsFastISel final : public FastISel {
+
+public:
+ explicit MipsFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo)
+ : FastISel(funcInfo, libInfo) {}
+ bool TargetSelectInstruction(const Instruction *I) override { return false; }
+};
+}
+
+namespace llvm {
+FastISel *Mips::createFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo) {
+ return new MipsFastISel(funcInfo, libInfo);
+}
+}
cl::desc("MIPS: Don't trap on integer division by zero."),
cl::init(false));
+cl::opt<bool>
+EnableMipsFastISel("mips-fast-isel", cl::Hidden,
+ cl::desc("Allow mips-fast-isel to be used"),
+ cl::init(false));
+
static const MCPhysReg O32IntRegs[4] = {
Mips::A0, Mips::A1, Mips::A2, Mips::A3
};
return llvm::createMipsSETargetLowering(TM);
}
+// Create a fast isel object.
+FastISel *
+MipsTargetLowering::createFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo) const {
+ if (!EnableMipsFastISel)
+ return TargetLowering::createFastISel(funcInfo, libInfo);
+ return Mips::createFastISel(funcInfo, libInfo);
+}
+
EVT MipsTargetLowering::getSetCCResultType(LLVMContext &, EVT VT) const {
if (!VT.isVector())
return MVT::i32;
static const MipsTargetLowering *create(MipsTargetMachine &TM);
+ /// createFastISel - This method returns a target specific FastISel object,
+ /// or null if the target does not support "fast" ISel.
+ FastISel *createFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo) const override;
+
virtual MVT getScalarShiftAmountTy(EVT LHSTy) const { return MVT::i32; }
virtual void LowerOperationWrapper(SDNode *N,
/// Create MipsTargetLowering objects.
const MipsTargetLowering *createMips16TargetLowering(MipsTargetMachine &TM);
const MipsTargetLowering *createMipsSETargetLowering(MipsTargetMachine &TM);
+
+ namespace Mips {
+ FastISel *createFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo);
+ }
}
#endif // MipsISELLOWERING_H