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c94da20917
Summary: DataLayout keeps the string used for its creation. As a side effect it is no longer needed in the Module. This is "almost" NFC, the string is no longer canonicalized, you can't rely on two "equals" DataLayout having the same string returned by getStringRepresentation(). Get rid of DataLayoutPass: the DataLayout is in the Module The DataLayout is "per-module", let's enforce this by not duplicating it more than necessary. One more step toward non-optionality of the DataLayout in the module. Make DataLayout Non-Optional in the Module Module->getDataLayout() will never returns nullptr anymore. Reviewers: echristo Subscribers: resistor, llvm-commits, jholewinski Differential Revision: http://reviews.llvm.org/D7992 From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231270 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
//===-- AllocaHoisting.h - Hosist allocas to the entry block ----*- 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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// Hoist the alloca instructions in the non-entry blocks to the entry blocks.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXALLOCAHOISTING_H
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#define LLVM_LIB_TARGET_NVPTX_NVPTXALLOCAHOISTING_H
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#include "llvm/CodeGen/MachineFunctionAnalysis.h"
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#include "llvm/CodeGen/StackProtector.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/Pass.h"
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namespace llvm {
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class FunctionPass;
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class Function;
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// Hoisting the alloca instructions in the non-entry blocks to the entry
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// block.
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class NVPTXAllocaHoisting : public FunctionPass {
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public:
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static char ID; // Pass ID
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NVPTXAllocaHoisting() : FunctionPass(ID) {}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.addPreserved<MachineFunctionAnalysis>();
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AU.addPreserved<StackProtector>();
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}
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const char *getPassName() const override {
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return "NVPTX specific alloca hoisting";
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}
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bool runOnFunction(Function &function) override;
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};
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extern FunctionPass *createAllocaHoisting();
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} // end namespace llvm
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#endif
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