0cfb5f852d
Move the register stackification and coloring passes to run very late, after PEI, tail duplication, and most other passes. This means that all code emitted and expanded by those passes is now exposed to these passes. This also eliminates the need for prologue/epilogue code to be manually stackified, which significantly simplifies the code. This does require running LiveIntervals a second time. It's useful to think of these late passes not as late optimization passes, but as a domain-specific compression algorithm based on knowledge of liveness information. It's used to compress the code after all conventional optimizations are complete, which is why it uses LiveIntervals at a phase when actual optimization passes don't typically need it. Differential Revision: http://reviews.llvm.org/D20075 llvm-svn: 269012
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===-- WebAssembly.h - Top-level interface for WebAssembly ----*- 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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/// \file
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/// \brief This file contains the entry points for global functions defined in
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/// the LLVM WebAssembly back-end.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLY_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLY_H
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#include "llvm/Support/CodeGen.h"
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namespace llvm {
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class WebAssemblyTargetMachine;
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class FunctionPass;
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// LLVM IR passes.
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FunctionPass *createWebAssemblyOptimizeReturned();
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// ISel and immediate followup passes.
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FunctionPass *createWebAssemblyISelDag(WebAssemblyTargetMachine &TM,
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CodeGenOpt::Level OptLevel);
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FunctionPass *createWebAssemblyArgumentMove();
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FunctionPass *createWebAssemblySetP2AlignOperands();
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// Regalloc-time passes.
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FunctionPass *createWebAssemblyPEI();
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// Late passes.
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FunctionPass *createWebAssemblyReplacePhysRegs();
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FunctionPass *createWebAssemblyPrepareForLiveIntervals();
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FunctionPass *createWebAssemblyOptimizeLiveIntervals();
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FunctionPass *createWebAssemblyStoreResults();
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FunctionPass *createWebAssemblyRegStackify();
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FunctionPass *createWebAssemblyRegColoring();
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FunctionPass *createWebAssemblyFixIrreducibleControlFlow();
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FunctionPass *createWebAssemblyCFGStackify();
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FunctionPass *createWebAssemblyLowerBrUnless();
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FunctionPass *createWebAssemblyRegNumbering();
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FunctionPass *createWebAssemblyPeephole();
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} // end namespace llvm
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#endif
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