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dd854ba81b
Summary: After the staack is unwound due to a thrown exxception, `__stack_pointer` global can point to an invalid address. So a `global.set` to restore `__stack_pointer` should be inserted right after `catch` instruction. But after r352598 the `global.set` instruction is inserted not right after `catch` but after `block` - `br-on-exn` - `end_block` - `extract_exception` sequence. This CL fixes it. While doing that, we can actually move ReplacePhysRegs pass after LateEHPrepare and merge EHRestoreStackPointer pass into LateEHPrepare, and now placing `global.set` to `__stack_pointer` right after `catch` is much easier. Otherwise it is hard to guarantee that `global.set` is still right after `catch` and not touched with other transformations, in which case we have to do something to hoist it. Reviewers: dschuff Subscribers: mgorny, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D57421 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@352681 91177308-0d34-0410-b5e6-96231b3b80d8
85 lines
3.6 KiB
C++
85 lines
3.6 KiB
C++
//===-- WebAssembly.h - Top-level interface for WebAssembly ----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// 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/PassRegistry.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 ModulePass;
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class FunctionPass;
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// LLVM IR passes.
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ModulePass *createWebAssemblyLowerEmscriptenEHSjLj(bool DoEH, bool DoSjLj);
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ModulePass *createWebAssemblyLowerGlobalDtors();
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ModulePass *createWebAssemblyAddMissingPrototypes();
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ModulePass *createWebAssemblyFixFunctionBitcasts();
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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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// 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 *createWebAssemblyMemIntrinsicResults();
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FunctionPass *createWebAssemblyRegStackify();
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FunctionPass *createWebAssemblyRegColoring();
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FunctionPass *createWebAssemblyExplicitLocals();
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FunctionPass *createWebAssemblyFixIrreducibleControlFlow();
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FunctionPass *createWebAssemblyLateEHPrepare();
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FunctionPass *createWebAssemblyCFGSort();
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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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FunctionPass *createWebAssemblyCallIndirectFixup();
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// PassRegistry initialization declarations.
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void initializeWebAssemblyAddMissingPrototypesPass(PassRegistry &);
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void initializeWebAssemblyLowerEmscriptenEHSjLjPass(PassRegistry &);
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void initializeLowerGlobalDtorsPass(PassRegistry &);
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void initializeFixFunctionBitcastsPass(PassRegistry &);
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void initializeOptimizeReturnedPass(PassRegistry &);
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void initializeWebAssemblyArgumentMovePass(PassRegistry &);
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void initializeWebAssemblySetP2AlignOperandsPass(PassRegistry &);
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void initializeWebAssemblyReplacePhysRegsPass(PassRegistry &);
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void initializeWebAssemblyPrepareForLiveIntervalsPass(PassRegistry &);
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void initializeWebAssemblyOptimizeLiveIntervalsPass(PassRegistry &);
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void initializeWebAssemblyMemIntrinsicResultsPass(PassRegistry &);
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void initializeWebAssemblyRegStackifyPass(PassRegistry &);
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void initializeWebAssemblyRegColoringPass(PassRegistry &);
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void initializeWebAssemblyExplicitLocalsPass(PassRegistry &);
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void initializeWebAssemblyFixIrreducibleControlFlowPass(PassRegistry &);
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void initializeWebAssemblyLateEHPreparePass(PassRegistry &);
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void initializeWebAssemblyExceptionInfoPass(PassRegistry &);
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void initializeWebAssemblyCFGSortPass(PassRegistry &);
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void initializeWebAssemblyCFGStackifyPass(PassRegistry &);
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void initializeWebAssemblyLowerBrUnlessPass(PassRegistry &);
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void initializeWebAssemblyRegNumberingPass(PassRegistry &);
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void initializeWebAssemblyPeepholePass(PassRegistry &);
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void initializeWebAssemblyCallIndirectFixupPass(PassRegistry &);
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} // end namespace llvm
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#endif
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