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MemoryBuffer: Don't use mmap when FileSize is multiple of 4k on Cygwin.
authorNAKAMURA Takumi <geek4civic@gmail.com>
Mon, 4 Aug 2014 01:43:37 +0000 (01:43 +0000)
committerNAKAMURA Takumi <geek4civic@gmail.com>
Mon, 4 Aug 2014 01:43:37 +0000 (01:43 +0000)
commit499befab3136ec5c3a2e984d46ace5afe15c1f7b
treecab5d45ca122303a48ec5dac59b72bb6f442bad2tree | snapshot
parent73100d8f33493fac4f9ac4ea3d99dce8f1986b8fcommit | diff
MemoryBuffer: Don't use mmap when FileSize is multiple of 4k on Cygwin.

On Cygwin, getpagesize() returns 64k(AllocationGranularity).

In r214580, the size of X86GenInstrInfo.inc became 1499136.

FIXME: We should reorganize again getPageSize() on Win32.
MapFile allocates address along AllocationGranularity but view is mapped by physical page.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214681 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Support/MemoryBuffer.cpp diff | blob | history
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