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Differential D39469 Diff 121058 llvm/lib/Transforms/Utils/ASanStackFrameLayout.cpp

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Show First 20 Lines • Show All 75 Lines • ▼ Show 20 Lines	for (size_t i = 0; i < NumVars; i++) {
size_t Size = Vars[i].Size;		size_t Size = Vars[i].Size;
assert((Alignment & (Alignment - 1)) == 0);		assert((Alignment & (Alignment - 1)) == 0);
assert(Layout.FrameAlignment >= Alignment);		assert(Layout.FrameAlignment >= Alignment);
assert((Offset % Alignment) == 0);		assert((Offset % Alignment) == 0);
assert(Size > 0);		assert(Size > 0);
size_t NextAlignment = IsLast ? Granularity		size_t NextAlignment = IsLast ? Granularity
: std::max(Granularity, Vars[i + 1].Alignment);		: std::max(Granularity, Vars[i + 1].Alignment);
size_t SizeWithRedzone = VarAndRedzoneSize(Size, NextAlignment);		size_t SizeWithRedzone = VarAndRedzoneSize(Size, NextAlignment);
		// Add a sentinel to end of stack.
		if (IsLast && SizeWithRedzone == Granularity)
		SizeWithRedzone += Granularity;
Vars[i].Offset = Offset;		Vars[i].Offset = Offset;
Offset += SizeWithRedzone;		Offset += SizeWithRedzone;
}		}
if (Offset % MinHeaderSize) {		if (Offset % MinHeaderSize) {
Offset += MinHeaderSize - (Offset % MinHeaderSize);		Offset += MinHeaderSize - (Offset % MinHeaderSize);
}		}
Layout.FrameSize = Offset;		Layout.FrameSize = Offset;
assert((Layout.FrameSize % MinHeaderSize) == 0);		assert((Layout.FrameSize % MinHeaderSize) == 0);
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