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| author | Chris Lattner <sabre@nondot.org> | 2006-07-18 07:07:51 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-07-18 07:07:51 +0000 |
| commit | ff3d80ff7e167a8b6e84621ed155481c8b6a2bb4 (patch) | |
| tree | 11a5330ac007b6470759122a724054415d93c5d5 /lib/System/Unix | |
| parent | 84bad2f96c42e62238bb29f6344eadd7006826b2 (diff) | |
| download | external_llvm-ff3d80ff7e167a8b6e84621ed155481c8b6a2bb4.zip external_llvm-ff3d80ff7e167a8b6e84621ed155481c8b6a2bb4.tar.gz external_llvm-ff3d80ff7e167a8b6e84621ed155481c8b6a2bb4.tar.bz2 | |
simple optimization: don't bother calling "exists" (which calls the syscall
"access"). Instead, just let the open call fail if the file doesn't exist.
This reduces the # syscalls executed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29173 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/System/Unix')
| -rw-r--r-- | lib/System/Unix/MappedFile.inc | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/lib/System/Unix/MappedFile.inc b/lib/System/Unix/MappedFile.inc index 148372b..341ee25 100644 --- a/lib/System/Unix/MappedFile.inc +++ b/lib/System/Unix/MappedFile.inc @@ -40,9 +40,6 @@ struct sys::MappedFileInfo { }; void MappedFile::initialize() { - if (!path_.exists()) - throw std::string("Can't open file: ") + path_.toString(); - int mode = 0; if (options_ & READ_ACCESS) if (options_ & WRITE_ACCESS) |