#include "NVPTX.h"
#include "NVPTXAllocaHoisting.h"
#include "NVPTXLowerAggrCopies.h"
+#include "NVPTXTargetObjectFile.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFunctionAnalysis.h"
void initializeGenericToNVVMPass(PassRegistry&);
void initializeNVPTXAssignValidGlobalNamesPass(PassRegistry&);
void initializeNVPTXFavorNonGenericAddrSpacesPass(PassRegistry &);
+void initializeNVPTXLowerStructArgsPass(PassRegistry &);
}
extern "C" void LLVMInitializeNVPTXTarget() {
initializeNVPTXAssignValidGlobalNamesPass(*PassRegistry::getPassRegistry());
initializeNVPTXFavorNonGenericAddrSpacesPass(
*PassRegistry::getPassRegistry());
-}
-
-static std::string computeDataLayout(const NVPTXSubtarget &ST) {
- std::string Ret = "e";
-
- if (!ST.is64Bit())
- Ret += "-p:32:32";
-
- Ret += "-i64:64-v16:16-v32:32-n16:32:64";
-
- return Ret;
+ initializeNVPTXLowerStructArgsPass(*PassRegistry::getPassRegistry());
}
NVPTXTargetMachine::NVPTXTargetMachine(const Target &T, StringRef TT,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL, bool is64bit)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
- Subtarget(TT, CPU, FS, is64bit), DL(computeDataLayout(Subtarget)),
- InstrInfo(Subtarget), TLInfo(*this), TSInfo(&DL),
- FrameLowering(*this, is64bit) {
+ TLOF(make_unique<NVPTXTargetObjectFile>()),
+ Subtarget(TT, CPU, FS, *this, is64bit) {
initAsmInfo();
}
+NVPTXTargetMachine::~NVPTXTargetMachine() {}
+
void NVPTXTargetMachine32::anchor() {}
NVPTXTargetMachine32::NVPTXTargetMachine32(
bool addInstSelector() override;
bool addPreRegAlloc() override;
bool addPostRegAlloc() override;
+ void addMachineSSAOptimization() override;
FunctionPass *createTargetRegisterAllocator(bool) override;
void addFastRegAlloc(FunctionPass *RegAllocPass) override;
return PassConfig;
}
+void NVPTXTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
+ // Add first the target-independent BasicTTI pass, then our NVPTX pass. This
+ // allows the NVPTX pass to delegate to the target independent layer when
+ // appropriate.
+ PM.add(createBasicTargetTransformInfoPass(this));
+ PM.add(createNVPTXTargetTransformInfoPass(this));
+}
+
void NVPTXPassConfig::addIRPasses() {
// The following passes are known to not play well with virtual regs hanging
// around after register allocation (which in our case, is *all* registers).
printAndVerify("After StackSlotColoring");
}
+
+void NVPTXPassConfig::addMachineSSAOptimization() {
+ // Pre-ra tail duplication.
+ if (addPass(&EarlyTailDuplicateID))
+ printAndVerify("After Pre-RegAlloc TailDuplicate");
+
+ // Optimize PHIs before DCE: removing dead PHI cycles may make more
+ // instructions dead.
+ addPass(&OptimizePHIsID);
+
+ // This pass merges large allocas. StackSlotColoring is a different pass
+ // which merges spill slots.
+ addPass(&StackColoringID);
+
+ // If the target requests it, assign local variables to stack slots relative
+ // to one another and simplify frame index references where possible.
+ addPass(&LocalStackSlotAllocationID);
+
+ // With optimization, dead code should already be eliminated. However
+ // there is one known exception: lowered code for arguments that are only
+ // used by tail calls, where the tail calls reuse the incoming stack
+ // arguments directly (see t11 in test/CodeGen/X86/sibcall.ll).
+ addPass(&DeadMachineInstructionElimID);
+ printAndVerify("After codegen DCE pass");
+
+ // Allow targets to insert passes that improve instruction level parallelism,
+ // like if-conversion. Such passes will typically need dominator trees and
+ // loop info, just like LICM and CSE below.
+ if (addILPOpts())
+ printAndVerify("After ILP optimizations");
+
+ addPass(&MachineLICMID);
+ addPass(&MachineCSEID);
+
+ addPass(&MachineSinkingID);
+ printAndVerify("After Machine LICM, CSE and Sinking passes");
+
+ addPass(&PeepholeOptimizerID);
+ printAndVerify("After codegen peephole optimization pass");
+}