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[demangler] Avoid alignment warning

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The alignment specified by a constant for the field
`BumpPointerAllocator::InitialBuffer` exceeded the alignment
guaranteed by `malloc` and `new` on Windows. This change set
the alignment value to that of `long double`, which is defined
by the used platform.

It fixes https://bugs.llvm.org/show_bug.cgi?id=37944.

Differential Revision: https://reviews.llvm.org/D48889

llvm-svn: 336311
This commit is contained in:
Serge Pavlov 2018-07-05 06:22:39 +00:00
parent 6d8417f993
commit e883ffb7d8
1 changed files with 1 additions and 1 deletions
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lib/Demangle/ItaniumDemangle.cpp
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@ -1950,7 +1950,7 @@ class BumpPointerAllocator {
static constexpr size_t AllocSize = 4096;
static constexpr size_t UsableAllocSize = AllocSize - sizeof(BlockMeta);
alignas(16) char InitialBuffer[AllocSize];
alignas(long double) char InitialBuffer[AllocSize];
BlockMeta* BlockList = nullptr;
void grow() {