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https://github.com/c64scene-ar/llvm-6502.git
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1afcace3a3
patch brings numerous advantages to LLVM. One way to look at it is through diffstat: 109 files changed, 3005 insertions(+), 5906 deletions(-) Removing almost 3K lines of code is a good thing. Other advantages include: 1. Value::getType() is a simple load that can be CSE'd, not a mutating union-find operation. 2. Types a uniqued and never move once created, defining away PATypeHolder. 3. Structs can be "named" now, and their name is part of the identity that uniques them. This means that the compiler doesn't merge them structurally which makes the IR much less confusing. 4. Now that there is no way to get a cycle in a type graph without a named struct type, "upreferences" go away. 5. Type refinement is completely gone, which should make LTO much MUCH faster in some common cases with C++ code. 6. Types are now generally immutable, so we can use "Type *" instead "const Type *" everywhere. Downsides of this patch are that it removes some functions from the C API, so people using those will have to upgrade to (not yet added) new API. "LLVM 3.0" is the right time to do this. There are still some cleanups pending after this, this patch is large enough as-is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
/*===-- IPO.h - Interprocedural Transformations C Interface -----*- 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 header declares the C interface to libLLVMIPO.a, which implements *|
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|* various interprocedural transformations of the LLVM IR. *|
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|* *|
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\*===----------------------------------------------------------------------===*/
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#ifndef LLVM_C_TRANSFORMS_IPO_H
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#define LLVM_C_TRANSFORMS_IPO_H
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#include "llvm-c/Core.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** See llvm::createArgumentPromotionPass function. */
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void LLVMAddArgumentPromotionPass(LLVMPassManagerRef PM);
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/** See llvm::createConstantMergePass function. */
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void LLVMAddConstantMergePass(LLVMPassManagerRef PM);
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/** See llvm::createDeadArgEliminationPass function. */
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void LLVMAddDeadArgEliminationPass(LLVMPassManagerRef PM);
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/** See llvm::createFunctionAttrsPass function. */
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void LLVMAddFunctionAttrsPass(LLVMPassManagerRef PM);
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/** See llvm::createFunctionInliningPass function. */
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void LLVMAddFunctionInliningPass(LLVMPassManagerRef PM);
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/** See llvm::createGlobalDCEPass function. */
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void LLVMAddGlobalDCEPass(LLVMPassManagerRef PM);
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/** See llvm::createGlobalOptimizerPass function. */
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void LLVMAddGlobalOptimizerPass(LLVMPassManagerRef PM);
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/** See llvm::createIPConstantPropagationPass function. */
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void LLVMAddIPConstantPropagationPass(LLVMPassManagerRef PM);
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/** See llvm::createLowerSetJmpPass function. */
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void LLVMAddLowerSetJmpPass(LLVMPassManagerRef PM);
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/** See llvm::createPruneEHPass function. */
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void LLVMAddPruneEHPass(LLVMPassManagerRef PM);
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/** See llvm::createIPSCCPPass function. */
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void LLVMAddIPSCCPPass(LLVMPassManagerRef PM);
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/** See llvm::createInternalizePass function. */
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void LLVMAddInternalizePass(LLVMPassManagerRef, unsigned AllButMain);
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// FIXME: Remove in LLVM 3.0.
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void LLVMAddRaiseAllocationsPass(LLVMPassManagerRef PM);
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/** See llvm::createStripDeadPrototypesPass function. */
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void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM);
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/** See llvm::createStripSymbolsPass function. */
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void LLVMAddStripSymbolsPass(LLVMPassManagerRef PM);
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#ifdef __cplusplus
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}
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#endif /* defined(__cplusplus) */
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#endif
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