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llvm-mirror/test/ThinLTO/X86
Teresa Johnson 52c19ef944 [LTO] Record whether LTOUnit splitting is enabled in index
Summary:
Records in the module summary index whether the bitcode was compiled
with the option necessary to enable splitting the LTO unit
(e.g. -fsanitize=cfi, -fwhole-program-vtables, or -fsplit-lto-unit).

The information is passed down to the ModuleSummaryIndex builder via a
new module flag "EnableSplitLTOUnit", which is propagated onto a flag
on the summary index.

This is then used during the LTO link to check whether all linked
summaries were built with the same value of this flag. If not, an error
is issued when we detect a situation requiring whole program visibility
of the class hierarchy. This is the case when both of the following
conditions are met:
1) We are performing LowerTypeTests or Whole Program Devirtualization.
2) There are type tests or type checked loads in the code.

Note I have also changed the ThinLTOBitcodeWriter to also gate the
module splitting on the value of this flag.

Reviewers: pcc

Subscribers: ormris, mehdi_amini, Prazek, inglorion, eraman, steven_wu, dexonsmith, arphaman, dang, llvm-commits

Differential Revision: https://reviews.llvm.org/D53890

llvm-svn: 350948
2019-01-11 18:31:57 +00:00
..
Inputs [ThinLTO] Scan all variants of vague symbol for reachability. 2019-01-02 23:18:20 +00:00
alias_import.ll
alias_internal.ll
alias_resolution.ll
autoupgrade.ll
cache-config.ll
cache-icall.ll [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
cache-import-lists.ll
cache-typeid-resolutions.ll [ThinLTO] Look through aliases when computing hash keys 2018-12-04 00:02:33 +00:00
cache.ll [test] Skip ThinLTO cache tests requiring atime setting on NetBSD 2018-12-05 11:15:50 +00:00
callees-metadata.ll
cfi-devirt.ll [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
cfi-distributed.ll [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
cfi-icall.ll [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
cfi.ll [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
crash_debuginfo.ll
deadstrip.ll [ThinLTO] Scan all variants of vague symbol for reachability. 2019-01-02 23:18:20 +00:00
debuginfo-compositetype-import.ll
debuginfo-cu-import.ll
devirt-after-icp.ll [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
diagnostic-handler-remarks-with-hotness.ll
diagnostic-handler-remarks.ll
dicompositetype-unique2.ll
dicompositetype-unique-alias.ll
dicompositetype-unique.ll
distributed_import.ll
distributed_indexes.ll
dot-dumper-full-lto.ll
dot-dumper.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
drop-debug-info.ll
dsolocal_dllimport.ll
emit_imports.ll
empty_module_with_cache.ll
empty-module.ll
export.ll
funcimport2.ll
funcimport-debug.ll
funcimport-tbaa.ll
funcimport.ll [LTO] Drop non-prevailing definitions only if linkage is not local or appending 2018-11-08 20:10:07 +00:00
function_entry_count.ll [ThinLTO] Fix test added in rL349076 2018-12-14 08:21:08 +00:00
globals-import-blockaddr.ll
globals-import-const-fold.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
globals-import.ll
import_opaque_type.ll
index-const-prop2.ll ThinLTO: Do not import debug info for imported global constants 2018-12-05 21:42:17 +00:00
index-const-prop-alias.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-cache.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-comdat.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-dead.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-full-lto.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-gvref.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-ldst.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-linkage.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop-O0.ll [ThinLTO] Internalize readonly globals 2018-11-16 07:08:00 +00:00
index-const-prop.ll ThinLTO: Do not import debug info for imported global constants 2018-12-05 21:42:17 +00:00
internalize.ll [ThinLTO] Add an option to disable (thin)lto internalization. 2018-11-05 15:49:46 +00:00
lazyload_metadata.ll Introduce llvm.loop.parallel_accesses and llvm.access.group metadata. 2018-12-20 04:58:07 +00:00
linkonce_aliasee_ref_import.ll
linkonce_odr_unnamed_addr.ll
linkonce_resolution_comdat.ll
lit.local.cfg
llvm.used.ll
local_name_conflict_var.ll [ThinLTO] Import local variables from the same module as caller 2018-11-29 17:02:42 +00:00
local_name_conflict.ll [ThinLTO] Import local variables from the same module as caller 2018-11-29 17:02:42 +00:00
merge-triple.ll
module_asm2.ll
module_asm_glob.ll
module_summary_graph_traits.ll
newpm-basic.ll
noinline.ll
personality-local.ll
personality.ll
pr35472.ll [ThinLTO] Fix a crash in lazy loading of Metadata 2018-11-14 20:58:04 +00:00
prefix_replace.ll
reference_non_importable.ll
referenced_by_constant.ll
save_objects.ll
section.ll
strong_non_prevailing.ll [LTO] Drop non-prevailing definitions only if linkage is not local or appending 2018-11-08 20:10:07 +00:00
tli-nobuiltin.ll
weak_resolution_single.ll
weak_resolution.ll