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8617b3bb3e
llvm/lib
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Rui Ueyama 8617b3bb3e Support: Improve performance of FileOutputBuffer on Windows 
We extend an underlying file before mmap'ing it, but it's not needed
on Windows. Extending file is slow on Windows, so we should avoid doing that.
The difference gets larger as the size of an output file gets larger.
It shove off 2 seconds out of 25 seconds when linking chrome.dll with LLD,
for example.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231452 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 06:07:32 +00:00
..
Analysis Teach ComputeNumSignBits about signed reminder. 2015-03-06 00:23:58 +00:00
AsmParser Revert "unique_ptrify ValID::ConstantStructElts" 2015-03-04 18:31:10 +00:00
Bitcode Add missing includes. make_unique proliferated everywhere. 2015-03-01 21:28:53 +00:00
CodeGen LegalizeTypes: Handle shift by 0 in ExpandShiftByConstant. 2015-03-06 01:13:01 +00:00
DebugInfo DWARFFormValue: Add getAsSignedConstant method. 2015-03-04 22:07:41 +00:00
ExecutionEngine Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
Fuzzer [sanitizer/coverage] Add AFL-style coverage counters (search heuristic for fuzzing). 2015-03-03 23:27:02 +00:00
IR Instructions: Use delegated constructors to reduce duplication 2015-03-05 22:05:26 +00:00
IRReader Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects. 2015-02-11 03:28:02 +00:00
LineEditor Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects. 2015-02-11 03:28:02 +00:00
Linker Remember to move a type to the correct set when setting the body. 2015-03-06 00:50:21 +00:00
LTO Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
MC Use the generic Lfunc_begin label on ppc. 2015-03-05 18:55:50 +00:00
Object Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
Option Remove explicit no-op dtor in favor of the implicit dtor so as not to disable/deprecate the copy operations. 2015-03-03 19:53:02 +00:00
ProfileData Add missing includes. make_unique proliferated everywhere. 2015-03-01 21:28:53 +00:00
Support Support: Improve performance of FileOutputBuffer on Windows 2015-03-06 06:07:32 +00:00
TableGen Add missing includes. make_unique proliferated everywhere. 2015-03-01 21:28:53 +00:00
Target [X86] Remove stale comment. NFC. 2015-03-05 23:18:41 +00:00
Transforms [objc-arc] Sprinkle some more auto on some iterators. 2015-03-06 02:10:03 +00:00
CMakeLists.txt Reverting r227452, which adds back the fuzzer library. Now excluding the fuzzer library based on LLVM_USE_SANITIZE_COVERAGE being set or unset. 2015-01-29 16:58:29 +00:00
LLVMBuild.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
Makefile Move DebugInfo to DebugInfo/DWARF. 2015-01-30 18:07:45 +00:00