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[asan] Reuse a common function.

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Do not reimplement RoundUpToAlignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229397 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov
2015-02-16 14:49:37 +00:00
parent cbe6ecfc81
commit 989552ca7f
1 changed files with 2 additions and 6 deletions
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8
lib/Transforms/Utils/ASanStackFrameLayout.cpp
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@@ -13,6 +13,7 @@
#include "llvm/Transforms/Utils/ASanStackFrameLayout.h" #include "llvm/Transforms/Utils/ASanStackFrameLayout.h"
#include "llvm/ADT/SmallString.h" #include "llvm/ADT/SmallString.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
#include "llvm/Support/MathExtras.h"
#include <algorithm> #include <algorithm>
namespace llvm { namespace llvm {
@@ -33,11 +34,6 @@ static inline bool CompareVars(const ASanStackVariableDescription &a,
// with e.g. alignment 1 and alignment 16 do not get reordered by CompareVars. // with e.g. alignment 1 and alignment 16 do not get reordered by CompareVars.
static const size_t kMinAlignment = 16; static const size_t kMinAlignment = 16;
static size_t RoundUpTo(size_t X, size_t RoundTo) {
assert((RoundTo & (RoundTo - 1)) == 0);
return (X + RoundTo - 1) & ~(RoundTo - 1);
}
// The larger the variable Size the larger is the redzone. // The larger the variable Size the larger is the redzone.
// The resulting frame size is a multiple of Alignment. // The resulting frame size is a multiple of Alignment.
static size_t VarAndRedzoneSize(size_t Size, size_t Alignment) { static size_t VarAndRedzoneSize(size_t Size, size_t Alignment) {
@@ -48,7 +44,7 @@ static size_t VarAndRedzoneSize(size_t Size, size_t Alignment) {
else if (Size <= 512) Res = Size + 64; else if (Size <= 512) Res = Size + 64;
else if (Size <= 4096) Res = Size + 128; else if (Size <= 4096) Res = Size + 128;
else Res = Size + 256; else Res = Size + 256;
return RoundUpTo(Res, Alignment); return RoundUpToAlignment(Res, Alignment);
} }
void void