diff options
Diffstat (limited to 'contrib/llvm/lib/Target/ARM/ARMTargetMachine.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/ARM/ARMTargetMachine.cpp | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/contrib/llvm/lib/Target/ARM/ARMTargetMachine.cpp index b486d4f..42c7d2c 100644 --- a/contrib/llvm/lib/Target/ARM/ARMTargetMachine.cpp +++ b/contrib/llvm/lib/Target/ARM/ARMTargetMachine.cpp @@ -11,11 +11,11 @@ //===----------------------------------------------------------------------===// #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" @@ -28,6 +28,11 @@ EnableGlobalMerge("global-merge", cl::Hidden, 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); @@ -43,7 +48,7 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, StringRef TT, Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OL) : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL), - Subtarget(TT, CPU, FS), + Subtarget(TT, CPU, FS, Options), JITInfo(), InstrItins(Subtarget.getInstrItineraryData()) { // Default to soft float ABI @@ -51,6 +56,15 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, StringRef TT, 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(getTargetLowering())); + PM.add(createARMTargetTransformInfoPass(this)); +} + + void ARMTargetMachine::anchor() { } ARMTargetMachine::ARMTargetMachine(const Target &T, StringRef TT, @@ -70,8 +84,7 @@ ARMTargetMachine::ARMTargetMachine(const Target &T, StringRef TT, "v128:64:128-v64:64:64-n32-S32")), TLInfo(*this), TSInfo(*this), - FrameLowering(Subtarget), - STTI(&TLInfo), VTTI(&TLInfo) { + FrameLowering(Subtarget) { if (!Subtarget.hasARMOps()) report_fatal_error("CPU: '" + Subtarget.getCPUString() + "' does not " "support ARM mode execution!"); @@ -103,8 +116,7 @@ ThumbTargetMachine::ThumbTargetMachine(const Target &T, StringRef TT, TSInfo(*this), FrameLowering(Subtarget.hasThumb2() ? new ARMFrameLowering(Subtarget) - : (ARMFrameLowering*)new Thumb1FrameLowering(Subtarget)), - STTI(&TLInfo), VTTI(&TLInfo) { + : (ARMFrameLowering*)new Thumb1FrameLowering(Subtarget)) { } namespace { @@ -157,6 +169,12 @@ bool ARMPassConfig::addPreRegAlloc() { addPass(createARMLoadStoreOptimizationPass(true)); if (getOptLevel() != CodeGenOpt::None && getARMSubtarget().isLikeA9()) 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; } |
