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0ee7ae5caa
This reverts commit r337504 while I investigate a TSan bot failure that seems related: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-autoconf/builds/26526 #8 0x000055581f2895d8 (/b/sanitizer-x86_64-linux-autoconf/build/tsan_debug_build/bin/clang-7+0x1eb45d8) #9 0x000055581f294323 llvm::ConstantAggrKeyType<llvm::ConstantArray>::create(llvm::ArrayType*) const /b/sanitizer-x86_64-linux-autoconf/build/llvm/lib/IR/ConstantsContext.h:409:0 #10 0x000055581f294323 llvm::ConstantUniqueMap<llvm::ConstantArray>::create(llvm::ArrayType*, llvm::ConstantAggrKeyType<llvm::ConstantArray>, std::pair<unsigned int, std::pair<llvm::ArrayType*, llvm::ConstantAggrKeyType<llvm::ConstantArray> > >&) /b/sanitizer-x86_64-linux-autoconf/build/llvm/lib/IR/ConstantsContext.h:635:0 #11 0x000055581f294323 llvm::ConstantUniqueMap<llvm::ConstantArray>::getOrCreate(llvm::ArrayType*, llvm::ConstantAggrKeyType<llvm::ConstantArray>) /b/sanitizer-x86_64-linux-autoconf/build/llvm/lib/IR/ConstantsContext.h:654:0 #12 0x000055581f2944cb llvm::ConstantArray::get(llvm::ArrayType*, llvm::ArrayRef<llvm::Constant*>) /b/sanitizer-x86_64-linux-autoconf/build/llvm/lib/IR/Constants.cpp:964:0 #13 0x000055581fa27e19 llvm::SmallVectorBase::size() const /b/sanitizer-x86_64-linux-autoconf/build/llvm/include/llvm/ADT/SmallVector.h:53:0 #14 0x000055581fa27e19 llvm::SmallVectorImpl<llvm::Constant*>::resize(unsigned long) /b/sanitizer-x86_64-linux-autoconf/build/llvm/include/llvm/ADT/SmallVector.h:347:0 #15 0x000055581fa27e19 (anonymous namespace)::EmitArrayConstant(clang::CodeGen::CodeGenModule&, clang::ConstantArrayType const*, llvm::Type*, unsigned int, llvm::SmallVectorImpl<llvm::Constant*>&, llvm::Constant*) /b/sanitizer-x86_64-linux-autoconf/build/llvm/tools/clang/lib/CodeGen/CGExprConstant.cpp:669:0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337511 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
//===- llvm/ADT/SmallVector.cpp - 'Normally small' vectors ----------------===//
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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 implements the SmallVector class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallVector.h"
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using namespace llvm;
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// Check that no bytes are wasted.
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static_assert(sizeof(SmallVector<void *, 1>) == sizeof(void *) * 4,
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"wasted space in SmallVector size 1; missing EBO?");
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/// grow_pod - This is an implementation of the grow() method which only works
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/// on POD-like datatypes and is out of line to reduce code duplication.
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void SmallVectorBase::grow_pod(void *FirstEl, size_t MinSizeInBytes,
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size_t TSize) {
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size_t CurSizeBytes = size_in_bytes();
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size_t NewCapacityInBytes = 2 * capacity_in_bytes() + TSize; // Always grow.
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if (NewCapacityInBytes < MinSizeInBytes)
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NewCapacityInBytes = MinSizeInBytes;
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void *NewElts;
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if (BeginX == FirstEl) {
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NewElts = safe_malloc(NewCapacityInBytes);
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// Copy the elements over. No need to run dtors on PODs.
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memcpy(NewElts, this->BeginX, CurSizeBytes);
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} else {
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// If this wasn't grown from the inline copy, grow the allocated space.
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NewElts = safe_realloc(this->BeginX, NewCapacityInBytes);
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}
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this->EndX = (char*)NewElts+CurSizeBytes;
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this->BeginX = NewElts;
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this->CapacityX = (char*)this->BeginX + NewCapacityInBytes;
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}
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