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bf77014eda
Summary:
This change will add a pass to remove unnecessary zero copies in target blocks
of cbz/cbnz instructions. E.g., the copy instruction in the code below can be
removed because the cbz jumps to BB1 when x0 is zero :
BB0:
cbz x0, .BB1
BB1:
mov x0, xzr
Jun
Reviewers: gberry, jmolloy, HaoLiu, MatzeB, mcrosier
Subscribers: mcrosier, mssimpso, haicheng, bmakam, llvm-commits, aemerson, rengolin
Differential Revision: http://reviews.llvm.org/D16203
llvm-svn: 261004
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//==-- AArch64.h - Top-level interface for AArch64 --------------*- C++ -*-==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the entry points for global functions defined in the LLVM
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// AArch64 back-end.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64_H
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#define LLVM_LIB_TARGET_AARCH64_AARCH64_H
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#include "MCTargetDesc/AArch64MCTargetDesc.h"
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#include "Utils/AArch64BaseInfo.h"
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class AArch64TargetMachine;
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class FunctionPass;
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class MachineFunctionPass;
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FunctionPass *createAArch64DeadRegisterDefinitions();
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FunctionPass *createAArch64RedundantCopyEliminationPass();
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FunctionPass *createAArch64ConditionalCompares();
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FunctionPass *createAArch64AdvSIMDScalar();
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FunctionPass *createAArch64BranchRelaxation();
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FunctionPass *createAArch64ISelDag(AArch64TargetMachine &TM,
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CodeGenOpt::Level OptLevel);
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FunctionPass *createAArch64StorePairSuppressPass();
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FunctionPass *createAArch64ExpandPseudoPass();
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FunctionPass *createAArch64LoadStoreOptimizationPass();
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ModulePass *createAArch64PromoteConstantPass();
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FunctionPass *createAArch64ConditionOptimizerPass();
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FunctionPass *createAArch64AddressTypePromotionPass();
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FunctionPass *createAArch64A57FPLoadBalancing();
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FunctionPass *createAArch64A53Fix835769();
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FunctionPass *createAArch64CleanupLocalDynamicTLSPass();
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FunctionPass *createAArch64CollectLOHPass();
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} // end namespace llvm
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#endif
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