maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/tools
History
Hongtao Yu ac068e014b [CSSPGO] Consume pseudo-probe-based AutoFDO profile 
This change enables pseudo-probe-based sample counts to be consumed by the sample profile loader under the regular `-fprofile-sample-use` switch with minimal adjustments to the existing sample file formats. After the counts are imported, a probe helper, aka, a `PseudoProbeManager` object, is automatically launched to verify the CFG checksum of every function in the current compilation against the corresponding checksum from the profile. Mismatched checksums will cause a function profile to be slipped. A `SampleProfileProber` pass is scheduled before any of the `SampleProfileLoader` instances so that the CFG checksums as well as probe mappings are available during the profile loading time. The `PseudoProbeManager` object is set up right after the profile reading is done. In the future a CFG-based fuzzy matching could be done in `PseudoProbeManager`.

Samples will be applied only to pseudo probe instructions as well as probed callsites once the checksum verification goes through. Those instructions are processed in the same way that regular instructions would be processed in the line-number-based scenario. In other words, a function is processed in a regular way as if it was reduced to just containing pseudo probes (block probes and callsites).

**Adjustment to profile format **

A CFG checksum field is being added to the existing AutoFDO profile formats. So far only the text format and the extended binary format are supported. For the text format, a new line like
```
!CFGChecksum: 12345
```
is added to the end of the body sample lines. For the extended binary profile format, we introduce a metadata section to store the checksum map from function names to their CFG checksums.

Differential Revision: https://reviews.llvm.org/D92347
 		2020-12-16 15:57:18 -08:00
..
bugpoint llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
bugpoint-passes
…
dsymutil [dsymutil][DWARFLinker][NFC] Make interface of AddressMap more general. 2020-12-10 14:57:08 +03:00
gold Rename -plugin-opt=no-new-pass-manager to -plugin-opt=legacy-pass-manager 2020-12-09 16:43:30 -08:00
llc [ScalarizeMaskedMemIntrin] Add new PM support 2020-12-08 17:15:22 -05:00
lli llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-ar llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as-fuzzer Fix several places that were calling verifyFunction or verifyModule without checking the return value. 2020-05-18 13:28:46 -07:00
llvm-bcanalyzer llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-c-test [llvm-c] Delete unimplemented llvm-c/LinkTimeOptimizer.h 2020-12-06 15:18:25 -08:00
llvm-cat llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cfi-verify llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-config [MinGW] Use lib prefix for libraries 2020-09-12 22:01:29 +03:00
llvm-cov llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cvtres llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cxxdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cxxfilt
…
llvm-cxxmap llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-diff Switch from llvm::is_trivially_copyable to std::is_trivially_copyable 2020-12-02 22:02:48 -08:00
llvm-dis llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-dwarfdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-dwp llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-elfabi [llvm-elfabi] Emit ELF header and string table sections 2020-11-23 12:18:58 -08:00
llvm-exegesis [llvm-exegesis][PowerPC] Add more register classes 2020-12-04 15:02:12 +00:00
llvm-extract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-go
…
llvm-gsymutil [lib/Object, tools] - Make ELFObjectFile::getELFFile return reference. 2020-12-04 16:02:29 +03:00
llvm-ifs llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-isel-fuzzer [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
llvm-itanium-demangle-fuzzer
…
llvm-jitlink Re-apply 8904ee8ac7 with missing header included this time. 2020-12-14 13:39:33 +11:00
llvm-jitlistener [MCJIT] Profile the code generated by MCJIT engine using Intel VTune profiler 2020-11-16 19:28:14 +11:00
llvm-libtool-darwin llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-link [llvm-link][NFC] Minor cleanup 2020-12-09 23:16:13 -08:00
llvm-lipo llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-lto llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-lto2 [llvm-lto2] Use NPM with ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER 2020-12-08 11:43:19 -08:00
llvm-mc [llvm][clang][mlir] Add checks for the return values from Target::createXXX to prevent protential null deref 2020-11-21 21:04:12 -08:00
llvm-mc-assemble-fuzzer Add missing include Host.h in llvm-mc-* fuzzers. NFC. 2020-05-18 02:21:22 +07:00
llvm-mc-disassemble-fuzzer Add missing include Host.h in llvm-mc-* fuzzers. NFC. 2020-05-18 02:21:22 +07:00
llvm-mca [llvm][clang][mlir] Add checks for the return values from Target::createXXX to prevent protential null deref 2020-11-21 21:04:12 -08:00
llvm-microsoft-demangle-fuzzer Give microsoftDemangle() an outparam for how many input bytes were consumed. 2020-05-20 16:17:31 -04:00
llvm-ml [ms] [llvm-ml] Support command-line defines 2020-12-01 18:06:05 -05:00
llvm-modextract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-mt llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-nm [llvm-nm][MachO] Don't call getFlags on redacted symbols 2020-12-04 21:48:53 -08:00
llvm-objcopy [lib/Object, tools] - Make ELFObjectFile::getELFFile return reference. 2020-12-04 16:02:29 +03:00
llvm-objdump [lib/Object] - Make ELFObjectFile::getSymbol() return Expected<>. 2020-12-16 13:14:23 +03:00
llvm-opt-fuzzer [NFC] Clean up PassBuilder 2020-10-30 10:03:59 -07:00
llvm-opt-report
…
llvm-pdbutil llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-profdata [CSSPGO] Consume pseudo-probe-based AutoFDO profile 2020-12-16 15:57:18 -08:00
llvm-profgen [llvm-profgen][NFC] Fix test failure by making unwinder's output deterministic 2020-12-07 22:36:25 -08:00
llvm-rc [llvm-rc] Handle driveless absolute windows paths when loading external files 2020-12-10 14:11:06 +02:00
llvm-readobj [llvm-readelf/obj] - Handle out-of-order PT_LOADs better. 2020-12-16 12:59:32 +03:00
llvm-reduce llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-rtdyld [llvm][clang][mlir] Add checks for the return values from Target::createXXX to prevent protential null deref 2020-11-21 21:04:12 -08:00
llvm-shlib [Support] On Windows, add optional support for {rpmalloc|snmalloc|mimalloc} 2020-08-27 11:09:46 -04:00
llvm-size llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-special-case-list-fuzzer
…
llvm-split llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-stress llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-strings llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-symbolizer [llvm-symbolizer] Add missing include for config.h 2020-12-15 09:20:31 -08:00
llvm-undname llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-xray Internalize functions from various tools. NFC 2020-09-26 15:57:13 -07:00
llvm-yaml-numeric-parser-fuzzer
…
llvm-yaml-parser-fuzzer [YAMLIO] Support non-null-terminated inputs 2020-11-18 23:06:03 +00:00
lto [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
msbuild
…
obj2yaml [yaml2obj/obj2yaml] - Make Value/Size fields of Symbol optional. 2020-12-16 13:49:57 +03:00
opt [opt][NPM] Pin -lower-amx-type to legacy PM 2020-12-13 19:16:20 -08:00
opt-viewer Convert old python3 cgi method into the new html one 2020-03-25 22:38:55 +01:00
remarks-shlib [tools][remarks-shlib] Don't build libRemarks.so without PIC 2020-09-20 12:40:21 +02:00
sancov [Support] Use InitLLVM in llvm-stress, sancov and TableGen 2020-07-28 07:50:45 -04:00
sanstats Internalize functions from various tools. NFC 2020-09-26 15:57:13 -07:00
split-file [split-file] Fix sys::fs::remove() on Solaris after D83834 2020-08-11 08:05:10 -07:00
verify-uselistorder llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
vfabi-demangle-fuzzer
…
xcode-toolchain
…
yaml2obj [llvm] Make obj2yaml and yaml2obj LLVM utilities instead of tools 2020-10-19 10:21:21 -07:00
CMakeLists.txt [Flang] add flang as a new subproject in cmake 2020-04-09 16:13:18 +01:00