Mercurial > hg > CbC > CbC_llvm
diff lib/Support/SmallVector.cpp @ 3:9ad51c7bc036
1st commit. remove git dir and add all files.
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Wed, 15 May 2013 06:43:32 +0900 |
parents | |
children | afa8332a0e37 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/Support/SmallVector.cpp Wed May 15 06:43:32 2013 +0900 @@ -0,0 +1,40 @@ +//===- llvm/ADT/SmallVector.cpp - 'Normally small' vectors ----------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the SmallVector class. +// +//===----------------------------------------------------------------------===// + +#include "llvm/ADT/SmallVector.h" +using namespace llvm; + +/// grow_pod - This is an implementation of the grow() method which only works +/// on POD-like datatypes and is out of line to reduce code duplication. +void SmallVectorBase::grow_pod(void *FirstEl, size_t MinSizeInBytes, + size_t TSize) { + size_t CurSizeBytes = size_in_bytes(); + size_t NewCapacityInBytes = 2 * capacity_in_bytes() + TSize; // Always grow. + if (NewCapacityInBytes < MinSizeInBytes) + NewCapacityInBytes = MinSizeInBytes; + + void *NewElts; + if (BeginX == FirstEl) { + NewElts = malloc(NewCapacityInBytes); + + // Copy the elements over. No need to run dtors on PODs. + memcpy(NewElts, this->BeginX, CurSizeBytes); + } else { + // If this wasn't grown from the inline copy, grow the allocated space. + NewElts = realloc(this->BeginX, NewCapacityInBytes); + } + + this->EndX = (char*)NewElts+CurSizeBytes; + this->BeginX = NewElts; + this->CapacityX = (char*)this->BeginX + NewCapacityInBytes; +}