Nadav Rotem 5c8e661d88 [Clang options] Optimize optionMatches() runtime by removing mallocs ... The method optionMatches() constructs 9865 std::string instances when comparing different options. Many of these instances exceed the size of the internal storage and force memory allocations. This patch adds an early exit check that eliminates most of the string allocations while keeping the code simple. Example inputs: Prefix: /, Name: Fr Prefix: -, Name: Fr Prefix: -, Name: fsanitize-address-field-padding= Prefix: -, Name: fsanitize-address-globals-dead-stripping Prefix: -, Name: fsanitize-address-poison-custom-array-cookie Prefix: -, Name: fsanitize-address-use-after-scope Prefix: -, Name: fsanitize-address-use-odr-indicator Prefix: -, Name: fsanitize-blacklist= Differential Revision: D85538		2020-08-12 23:07:07 -07:00
..
Arg.cpp
ArgList.cpp
CMakeLists.txt
LLVMBuild.txt
Option.cpp
OptTable.cpp	[Clang options] Optimize optionMatches() runtime by removing mallocs	2020-08-12 23:07:07 -07:00