llvm-project/llvm
Teresa Johnson 525dcb617b Fix update VP metadata after inlining for instrumentation PGO
Summary:
With instrumentation profiling, when updating the VP metadata after
an inline, VP metadata on the inlined copy was inadvertantly having
all counts zeroed out. This was causing indirect calls from code inlined
during the call step to be marked as cold in the ThinLTO summaries and
not imported.

The CallerBFI needs to be passed down so that the CallSiteCount can be
computed from the profile summary info. With Sample PGO this was working
since the count is extracted from the branch weight metadata on the
call being inlined (even before we stopped looking at metadata for
non-sample PGO in r302844 this largely wasn't working for instrumentation
PGO since only promoted indirect calls would be getting inlined and have
the metadata).

Added an instrumentation PGO test and renamed the sample PGO test.

Reviewers: danielcdh, eraman

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D33389

llvm-svn: 303574
2017-05-22 20:28:18 +00:00
..
bindings [go bindings] Rmove duplicated conversion function definitions after r300843. 2017-04-20 19:06:11 +00:00
cmake CMake: Fix docs-llvm-man target when clang+llvm is in the same source tree 2017-05-15 09:34:23 +00:00
docs [Docs] Fix LangRef links referred in GetElementPtr.rst 2017-05-21 05:31:29 +00:00
examples [Kaleidoscope] toy.cpp use after move fix 2017-05-07 11:00:01 +00:00
include Revert "Don't generate line&scope debug info for meta-instructions." 2017-05-22 18:50:12 +00:00
lib Fix update VP metadata after inlining for instrumentation PGO 2017-05-22 20:28:18 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources
runtimes [CMake][runtimes] Use -nodefaultlibs for the runtimes build 2017-04-13 21:29:03 +00:00
test Fix update VP metadata after inlining for instrumentation PGO 2017-05-22 20:28:18 +00:00
tools Add functionality to cvtres to parse all entries in res file. 2017-05-20 01:49:19 +00:00
unittests Revert "Add pthread_self function prototype and make it speculatable." 2017-05-21 00:37:55 +00:00
utils Revert r303259 - [globalisel][tablegen] Import rules containing intrinsic_wo_chain. 2017-05-22 10:14:33 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt CMake: Add LLVM_DYLIB_SYMBOL_VERSIONING option 2017-05-03 14:43:44 +00:00
CODE_OWNERS.TXT
CREDITS.TXT update of the url 2017-05-14 07:55:01 +00:00
LICENSE.TXT
LLVMBuild.txt
README.txt
RELEASE_TESTERS.TXT
configure
llvm.spec.in

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