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| author | Teresa Johnson <tejohnson@google.com> | 2019-07-02 19:38:02 +0000 |
|---|---|---|
| committer | Teresa Johnson <tejohnson@google.com> | 2019-07-02 19:38:02 +0000 |
| commit | a70043632335f697b0cbbb12d5ef0c5fe0fb999a (patch) | |
| tree | 42c34b71aa595f9badd188a77e73160e7f59377d /llvm/tools | |
| parent | 5fe851b6cd90ceaa4cf468d9403b3920e1d0ae15 (diff) | |
| download | bcm5719-llvm-a70043632335f697b0cbbb12d5ef0c5fe0fb999a.tar.gz bcm5719-llvm-a70043632335f697b0cbbb12d5ef0c5fe0fb999a.zip | |
[ThinLTO] Add summary entries for index-based WPD
Summary:
If LTOUnit splitting is disabled, the module summary analysis computes
the summary information necessary to perform single implementation
devirtualization during the thin link with the index and no IR. The
information collected from the regular LTO IR in the current hybrid WPD
algorithm is summarized, including:
1) For vtable definitions, record the function pointers and their offset
within the vtable initializer (subsumes the information collected from
IR by tryFindVirtualCallTargets).
2) A record for each type metadata summarizing the vtable definitions
decorated with that metadata (subsumes the TypeIdentiferMap collected
from IR).
Also added are the necessary bitcode records, and the corresponding
assembly support.
The follow-on index-based WPD patch is D55153.
Depends on D53890.
Reviewers: pcc
Subscribers: mehdi_amini, Prazek, inglorion, eraman, steven_wu, dexonsmith, arphaman, llvm-commits
Differential Revision: https://reviews.llvm.org/D54815
llvm-svn: 364960
Diffstat (limited to 'llvm/tools')
| -rw-r--r-- | llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp index 80a750f3610..29f6778d331 100644 --- a/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp +++ b/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp @@ -317,6 +317,7 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID, STRINGIFY_CODE(FS, PERMODULE_PROFILE) STRINGIFY_CODE(FS, PERMODULE_RELBF) STRINGIFY_CODE(FS, PERMODULE_GLOBALVAR_INIT_REFS) + STRINGIFY_CODE(FS, PERMODULE_VTABLE_GLOBALVAR_INIT_REFS) STRINGIFY_CODE(FS, COMBINED) STRINGIFY_CODE(FS, COMBINED_PROFILE) STRINGIFY_CODE(FS, COMBINED_GLOBALVAR_INIT_REFS) @@ -334,6 +335,7 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID, STRINGIFY_CODE(FS, CFI_FUNCTION_DEFS) STRINGIFY_CODE(FS, CFI_FUNCTION_DECLS) STRINGIFY_CODE(FS, TYPE_ID) + STRINGIFY_CODE(FS, TYPE_ID_METADATA) } case bitc::METADATA_ATTACHMENT_ID: switch(CodeID) { |
