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20539547b0
llvm-mirror/tools
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Peter Collingbourne 20539547b0 LTO: Reduce memory consumption by creating an in-memory symbol table for InputFiles. NFCI. 
Introduce symbol table data structures that can be potentially written to
disk, have the LTO library build those data structures using temporarily
constructed modules and redirect the LTO library implementation to go through
those data structures. This allows us to remove the LLVMContext and Modules
owned by InputFile.

With this change I measured a peak memory consumption decrease from 5.4GB to
2.8GB in a no-op incremental ThinLTO link of Chromium on Linux. The impact on
memory consumption is larger in COFF linkers where we are currently forced
to materialize all metadata in order to read linker options. Peak memory
consumption linking a large piece of Chromium for Windows with full LTO and
debug info decreases from >64GB (OOM) to 15GB.

Part of PR27551.

Differential Revision: https://reviews.llvm.org/D31364

llvm-svn: 299168
2017-03-31 02:28:30 +00:00
..
bugpoint Do not inline hot callsites for samplepgo in thinlto compile phase. 2017-03-21 19:55:36 +00:00
bugpoint-passes [CMake] bugpoint-passes depends on intrinsics_gen 2016-11-19 02:20:59 +00:00
dsymutil Spelling mistakes in comments. NFCI. 2017-03-30 12:59:53 +00:00
gold LTO: Reduce memory consumption by creating an in-memory symbol table for InputFiles. NFCI. 2017-03-31 02:28:30 +00:00
llc [Assembler] Add test for !srcloc references in assembler diags 2017-02-28 10:34:48 +00:00
lli [Orc] Rename ObjectLinkingLayer -> RTDyldObjectLinkingLayer. 2017-02-20 05:45:14 +00:00
llvm-ar Don't modify archive members unless really needed. 2017-02-21 20:40:54 +00:00
llvm-as [CMake] llvm-as depends on intrinsics_gen 2016-11-19 02:15:04 +00:00
llvm-as-fuzzer Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-bcanalyzer IR: Function summary extensions for whole-program devirtualization pass. 2017-02-10 22:29:38 +00:00
llvm-c-test Spelling mistakes in comments. NFCI. 2017-03-30 12:59:53 +00:00
llvm-cat llvm-cat: Allow bitcode files to be created with no modules. 2016-12-13 23:14:55 +00:00
llvm-config [CMake] Use variable interpolation instead of string concatenation 2017-03-22 12:06:11 +00:00
llvm-cov Use the new member accessors of llvm::enumerate. 2017-03-13 16:32:08 +00:00
llvm-cxxdump Make the Error class constructor protected 2016-11-11 04:28:40 +00:00
llvm-cxxfilt c++filt: support COFF import thunks 2017-03-22 21:15:19 +00:00
llvm-diff Cleanup dump() functions. 2017-01-28 02:02:38 +00:00
llvm-dis [CMake] llvm-dis depends on intrinsics_gen 2016-11-19 02:31:14 +00:00
llvm-dwarfdump Fix a bugs with using some Mach-O command line flags like "-arch armv7m". 2016-12-16 22:54:02 +00:00
llvm-dwp [llvm-dwp] - Reuse object::Decompressor class 2017-01-13 15:58:55 +00:00
llvm-extract [CMake] llvm-extract depends on intrinsics_gen 2016-11-19 02:33:57 +00:00
llvm-go [llvm-go] parameterize $GOPATH construction 2016-07-27 03:21:51 +00:00
llvm-jitlistener Search for llvm-symbolizer binary in the same directory as argv[0], before 2016-06-09 00:53:21 +00:00
llvm-link Remove unused lambda capture 2017-03-13 21:46:14 +00:00
llvm-lto Add support for -fno-builtin to LTO and ThinLTO to libLTO 2017-03-28 18:55:44 +00:00
llvm-lto2 More accurate header inclusions. NFC. 2017-03-28 23:35:34 +00:00
llvm-mc [DWARFv5] llvm-mc support for new unit header. 2017-02-28 23:40:46 +00:00
llvm-mc-assemble-fuzzer llvm-mc-fuzzer: add support for assembly 2017-02-27 06:22:17 +00:00
llvm-mc-disassemble-fuzzer llvm-mc-fuzzer: add support for assembly 2017-02-27 06:22:17 +00:00
llvm-mcmarkup Search for llvm-symbolizer binary in the same directory as argv[0], before 2016-06-09 00:53:21 +00:00
llvm-modextract llvm-modextract: Call keep() on the output stream before exiting. 2016-12-01 23:13:11 +00:00
llvm-nm Add a warning when the llvm-nm -print-size flag is used on a Mach-O file as 2017-01-25 21:33:38 +00:00
llvm-objdump Add the rest of the error checking for Mach-O dyld compact bind entry errors 2017-03-20 19:46:55 +00:00
llvm-opt-report [llvm-opt-report] Fix context-sensitive lines where nothing happened 2017-01-07 20:21:17 +00:00
llvm-pdbdump llvm-pdbdump: If we don't change the color, don't reset the color. 2017-03-29 17:11:27 +00:00
llvm-profdata Resubmit r297897: [PGO] Value profile for size of memory intrinsic calls 2017-03-16 21:15:48 +00:00
llvm-readobj [WebAssembly] Improve support for WebAssembly binary format 2017-03-30 19:44:09 +00:00
llvm-rtdyld Apply clang-tidy's 'performance-faster-string-find' check to LLVM. 2016-11-30 10:01:11 +00:00
llvm-shlib Add check for BSD when setting LIB_NAMES for GNU ld 2017-03-26 05:58:48 +00:00
llvm-size llvm-size: remove leading dash in '-radix' option 2016-12-23 23:55:08 +00:00
llvm-split [CMake] llvm-split depends on intrinsics_gen 2016-11-18 23:20:38 +00:00
llvm-stress Remove uses of deprecated std::random_shuffle in the LLVM code base. Reviewed as https://reviews.llvm.org/D29780. 2017-02-16 14:37:03 +00:00
llvm-strings llvm-strings: remove default for -Wcovered-switch-default 2017-01-21 02:52:29 +00:00
llvm-symbolizer Add a verbose/human readable mode to llvm-symbolizer to investigate discriminators and other line table/backtrace features 2017-01-31 22:19:38 +00:00
llvm-xray [XRay][tools] Remove some assertions in llvm-xray graph 2017-03-31 01:56:45 +00:00
lto Spelling mistakes in comments. NFCI. 2017-03-30 12:59:53 +00:00
msbuild Create msbuild only when using MSVC 2017-03-16 20:24:14 +00:00
obj2yaml [WebAssembly] Improve support for WebAssembly binary format 2017-03-30 19:44:09 +00:00
opt [ThinLTO] Add support for emitting minimized bitcode for thin link 2017-03-23 19:47:39 +00:00
sancov [sancov] Fix broken links and displaced coloring in coverage-report-server.py 2017-03-20 14:06:04 +00:00
sanstats [CMake] sanstats depends on intrinsics_gen 2016-11-18 23:30:39 +00:00
verify-uselistorder [CMake] verify-uselistorder depends on intrinsics_gen 2016-11-18 23:30:58 +00:00
xcode-toolchain [CMake] Minor fix to regex in r279152 2016-08-18 21:36:36 +00:00
yaml2obj [WebAssembly] Improve support for WebAssembly binary format 2017-03-30 19:44:09 +00:00
CMakeLists.txt Fixup r271533, or check-clang didn't find llvm-lto as the target. 2016-06-02 20:39:24 +00:00
LLVMBuild.txt Add llvm-modextract tool. 2016-11-29 21:54:33 +00:00