//===----------------------------------------------------------------------===//
#include "ARMTargetMachine.h"
-#include "ARMFrameLowering.h"
#include "ARM.h"
-#include "llvm/PassManager.h"
+#include "ARMFrameLowering.h"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/PassManager.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Target/TargetOptions.h"
+#include "llvm/Transforms/Scalar.h"
using namespace llvm;
static cl::opt<bool>
cl::desc("Enable global merge pass"),
cl::init(true));
+static cl::opt<bool>
+DisableA15SDOptimization("disable-a15-sd-optimization", cl::Hidden,
+ cl::desc("Inhibit optimization of S->D register accesses on A15"),
+ cl::init(false));
+
extern "C" void LLVMInitializeARMTarget() {
// Register the target.
RegisterTargetMachine<ARMTargetMachine> X(TheARMTarget);
RegisterTargetMachine<ThumbTargetMachine> Y(TheThumbTarget);
}
+
/// TargetMachine ctor - Create an ARM architecture model.
///
ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
- Reloc::Model RM, CodeModel::Model CM)
- : LLVMTargetMachine(T, TT, CPU, FS, RM, CM),
- Subtarget(TT, CPU, FS),
+ const TargetOptions &Options,
+ Reloc::Model RM, CodeModel::Model CM,
+ CodeGenOpt::Level OL)
+ : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+ Subtarget(TT, CPU, FS, Options),
JITInfo(),
InstrItins(Subtarget.getInstrItineraryData()) {
// Default to soft float ABI
- if (FloatABIType == FloatABI::Default)
- FloatABIType = FloatABI::Soft;
+ if (Options.FloatABIType == FloatABI::Default)
+ this->Options.FloatABIType = FloatABI::Soft;
}
+void ARMBaseTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
+ // Add first the target-independent BasicTTI pass, then our ARM pass. This
+ // allows the ARM pass to delegate to the target independent layer when
+ // appropriate.
+ PM.add(createBasicTargetTransformInfoPass(this));
+ PM.add(createARMTargetTransformInfoPass(this));
+}
+
+
+void ARMTargetMachine::anchor() { }
+
ARMTargetMachine::ARMTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
- Reloc::Model RM, CodeModel::Model CM)
- : ARMBaseTargetMachine(T, TT, CPU, FS, RM, CM), InstrInfo(Subtarget),
- DataLayout(Subtarget.isAPCS_ABI() ?
+ const TargetOptions &Options,
+ Reloc::Model RM, CodeModel::Model CM,
+ CodeGenOpt::Level OL)
+ : ARMBaseTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+ InstrInfo(Subtarget),
+ DL(Subtarget.isAPCS_ABI() ?
std::string("e-p:32:32-f64:32:64-i64:32:64-"
- "v128:32:128-v64:32:64-n32") :
+ "v128:32:128-v64:32:64-n32-S32") :
+ Subtarget.isAAPCS_ABI() ?
+ std::string("e-p:32:32-f64:64:64-i64:64:64-"
+ "v128:64:128-v64:64:64-n32-S64") :
std::string("e-p:32:32-f64:64:64-i64:64:64-"
- "v128:64:128-v64:64:64-n32")),
- ELFWriterInfo(*this),
+ "v128:64:128-v64:64:64-n32-S32")),
TLInfo(*this),
TSInfo(*this),
FrameLowering(Subtarget) {
+ initAsmInfo();
if (!Subtarget.hasARMOps())
report_fatal_error("CPU: '" + Subtarget.getCPUString() + "' does not "
"support ARM mode execution!");
}
+void ThumbTargetMachine::anchor() { }
+
ThumbTargetMachine::ThumbTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
- Reloc::Model RM, CodeModel::Model CM)
- : ARMBaseTargetMachine(T, TT, CPU, FS, RM, CM),
+ const TargetOptions &Options,
+ Reloc::Model RM, CodeModel::Model CM,
+ CodeGenOpt::Level OL)
+ : ARMBaseTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
InstrInfo(Subtarget.hasThumb2()
? ((ARMBaseInstrInfo*)new Thumb2InstrInfo(Subtarget))
: ((ARMBaseInstrInfo*)new Thumb1InstrInfo(Subtarget))),
- DataLayout(Subtarget.isAPCS_ABI() ?
+ DL(Subtarget.isAPCS_ABI() ?
std::string("e-p:32:32-f64:32:64-i64:32:64-"
"i16:16:32-i8:8:32-i1:8:32-"
- "v128:32:128-v64:32:64-a:0:32-n32") :
+ "v128:32:128-v64:32:64-a:0:32-n32-S32") :
+ Subtarget.isAAPCS_ABI() ?
+ std::string("e-p:32:32-f64:64:64-i64:64:64-"
+ "i16:16:32-i8:8:32-i1:8:32-"
+ "v128:64:128-v64:64:64-a:0:32-n32-S64") :
std::string("e-p:32:32-f64:64:64-i64:64:64-"
"i16:16:32-i8:8:32-i1:8:32-"
- "v128:64:128-v64:64:64-a:0:32-n32")),
- ELFWriterInfo(*this),
+ "v128:64:128-v64:64:64-a:0:32-n32-S32")),
TLInfo(*this),
TSInfo(*this),
FrameLowering(Subtarget.hasThumb2()
? new ARMFrameLowering(Subtarget)
: (ARMFrameLowering*)new Thumb1FrameLowering(Subtarget)) {
+ initAsmInfo();
}
-bool ARMBaseTargetMachine::addPreISel(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel) {
- if (OptLevel != CodeGenOpt::None && EnableGlobalMerge)
- PM.add(createARMGlobalMergePass(getTargetLowering()));
+namespace {
+/// ARM Code Generator Pass Configuration Options.
+class ARMPassConfig : public TargetPassConfig {
+public:
+ ARMPassConfig(ARMBaseTargetMachine *TM, PassManagerBase &PM)
+ : TargetPassConfig(TM, PM) {}
+
+ ARMBaseTargetMachine &getARMTargetMachine() const {
+ return getTM<ARMBaseTargetMachine>();
+ }
+
+ const ARMSubtarget &getARMSubtarget() const {
+ return *getARMTargetMachine().getSubtargetImpl();
+ }
+
+ virtual bool addPreISel();
+ virtual bool addInstSelector();
+ virtual bool addPreRegAlloc();
+ virtual bool addPreSched2();
+ virtual bool addPreEmitPass();
+};
+} // namespace
+
+TargetPassConfig *ARMBaseTargetMachine::createPassConfig(PassManagerBase &PM) {
+ return new ARMPassConfig(this, PM);
+}
+
+bool ARMPassConfig::addPreISel() {
+ if (TM->getOptLevel() != CodeGenOpt::None && EnableGlobalMerge)
+ addPass(createGlobalMergePass(TM));
return false;
}
-bool ARMBaseTargetMachine::addInstSelector(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel) {
- PM.add(createARMISelDag(*this, OptLevel));
+bool ARMPassConfig::addInstSelector() {
+ addPass(createARMISelDag(getARMTargetMachine(), getOptLevel()));
+
+ const ARMSubtarget *Subtarget = &getARMSubtarget();
+ if (Subtarget->isTargetELF() && !Subtarget->isThumb1Only() &&
+ TM->Options.EnableFastISel)
+ addPass(createARMGlobalBaseRegPass());
return false;
}
-bool ARMBaseTargetMachine::addPreRegAlloc(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel) {
+bool ARMPassConfig::addPreRegAlloc() {
// FIXME: temporarily disabling load / store optimization pass for Thumb1.
- if (OptLevel != CodeGenOpt::None && !Subtarget.isThumb1Only())
- PM.add(createARMLoadStoreOptimizationPass(true));
- if (OptLevel != CodeGenOpt::None && Subtarget.isCortexA9())
- PM.add(createMLxExpansionPass());
-
+ if (getOptLevel() != CodeGenOpt::None && !getARMSubtarget().isThumb1Only())
+ addPass(createARMLoadStoreOptimizationPass(true));
+ if (getOptLevel() != CodeGenOpt::None && getARMSubtarget().isCortexA9())
+ addPass(createMLxExpansionPass());
+ // Since the A15SDOptimizer pass can insert VDUP instructions, it can only be
+ // enabled when NEON is available.
+ if (getOptLevel() != CodeGenOpt::None && getARMSubtarget().isCortexA15() &&
+ getARMSubtarget().hasNEON() && !DisableA15SDOptimization) {
+ addPass(createA15SDOptimizerPass());
+ }
return true;
}
-bool ARMBaseTargetMachine::addPreSched2(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel) {
+bool ARMPassConfig::addPreSched2() {
// FIXME: temporarily disabling load / store optimization pass for Thumb1.
- if (OptLevel != CodeGenOpt::None) {
- if (!Subtarget.isThumb1Only())
- PM.add(createARMLoadStoreOptimizationPass());
- if (Subtarget.hasNEON())
- PM.add(createNEONMoveFixPass());
+ if (getOptLevel() != CodeGenOpt::None) {
+ if (!getARMSubtarget().isThumb1Only()) {
+ addPass(createARMLoadStoreOptimizationPass());
+ printAndVerify("After ARM load / store optimizer");
+ }
+ if (getARMSubtarget().hasNEON())
+ addPass(createExecutionDependencyFixPass(&ARM::DPRRegClass));
}
// Expand some pseudo instructions into multiple instructions to allow
// proper scheduling.
- PM.add(createARMExpandPseudoPass());
+ addPass(createARMExpandPseudoPass());
- if (OptLevel != CodeGenOpt::None) {
- if (!Subtarget.isThumb1Only())
- PM.add(createIfConverterPass());
+ if (getOptLevel() != CodeGenOpt::None) {
+ if (!getARMSubtarget().isThumb1Only())
+ addPass(&IfConverterID);
}
- if (Subtarget.isThumb2())
- PM.add(createThumb2ITBlockPass());
+ if (getARMSubtarget().isThumb2())
+ addPass(createThumb2ITBlockPass());
return true;
}
-bool ARMBaseTargetMachine::addPreEmitPass(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel) {
- if (Subtarget.isThumb2() && !Subtarget.prefers32BitThumb())
- PM.add(createThumb2SizeReductionPass());
+bool ARMPassConfig::addPreEmitPass() {
+ if (getARMSubtarget().isThumb2()) {
+ if (!getARMSubtarget().prefers32BitThumb())
+ addPass(createThumb2SizeReductionPass());
+
+ // Constant island pass work on unbundled instructions.
+ addPass(&UnpackMachineBundlesID);
+ }
+
+ addPass(createARMConstantIslandPass());
- PM.add(createARMConstantIslandPass());
return true;
}
bool ARMBaseTargetMachine::addCodeEmitter(PassManagerBase &PM,
- CodeGenOpt::Level OptLevel,
JITCodeEmitter &JCE) {
// Machine code emitter pass for ARM.
PM.add(createARMJITCodeEmitterPass(*this, JCE));
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