llvm-project/llvm
Akira Hatanaka 8edf8f317b [ObjC][ARC] Let ARC optimizer bail out if the number of pointer states
it keeps track of becomes too large

ARC optimizer does a top-down and a bottom-up traversal of the whole
function to pair up retain and release instructions and remove them.
This can be expensive if the number of instructions in the function and
pointer states it tracks are large since it has to look at each pointer
state and determine whether the instruction being visited can
potentially use the pointer.

This patch adds a command line option that sets a limit to the number of
pointers it tracks.

rdar://problem/49477063

Differential Revision: https://reviews.llvm.org/D61100

llvm-svn: 359226
2019-04-25 19:42:55 +00:00
..
benchmarks
bindings [OCaml] Update api to account for FNeg and CallBr instructions 2019-04-16 15:00:19 +00:00
cmake [CMake] Use add_dependencies in add_llvm_install_targets 2019-04-23 21:59:07 +00:00
docs [Remarks] Fix documentation indentation 2019-04-24 00:27:59 +00:00
examples [JITLink] Update BuildingAJIT tutorials to account for API changes in r358818. 2019-04-20 17:35:28 +00:00
include [GlobalISel] Add a G_FNEARBYINT opcode 2019-04-25 16:36:03 +00:00
lib [ObjC][ARC] Let ARC optimizer bail out if the number of pointer states 2019-04-25 19:42:55 +00:00
projects
resources
runtimes [CMake] Replace the sanitizer support in runtimes build with multilib 2019-04-22 23:31:39 +00:00
test [ObjC][ARC] Let ARC optimizer bail out if the number of pointer states 2019-04-25 19:42:55 +00:00
tools [yaml2obj] - Don't crash on invalid inputs. 2019-04-25 09:59:55 +00:00
unittests [Support] Add JSON streaming output API, faster where the heavy value types aren't needed. 2019-04-25 12:51:42 +00:00
utils gn build: Document llvm_enable_dia_sdk variable better 2019-04-25 14:56:56 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitattributes
.gitignore
CMakeLists.txt [CMake] Move configuration of LLVM_CXX_STD to HandleLLVMOptions.cmake 2019-04-09 08:14:32 +00:00
CODE_OWNERS.TXT
CREDITS.TXT add Qiu Chaofan (qiucf@cn.ibm.com) to the CREDITS.txt 2019-04-23 02:37:48 +00:00
LICENSE.TXT
LLVMBuild.txt
README.txt
RELEASE_TESTERS.TXT
configure
llvm.spec.in

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