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modimo 20faf78919 [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 
Thinlink provides an opportunity to propagate function attributes across modules, enabling additional propagation opportunities.

This change propagates (currently default off, turn on with `disable-thinlto-funcattrs=1`) noRecurse and noUnwind based off of function summaries of the prevailing functions in bottom-up call-graph order. Testing on clang self-build:
1. There's a 35-40% increase in noUnwind functions due to the additional propagation opportunities.
2. Throughput is measured at 10-15% increase in thinlink time which itself is 1.5% of E2E link time.

Implementation-wise this adds the following summary function attributes:
1. noUnwind: function is noUnwind
2. mayThrow: function contains a non-call instruction that `Instruction::mayThrow` returns true on (e.g. windows SEH instructions)
3. hasUnknownCall: function contains calls that don't make it into the summary call-graph thus should not be propagated from (e.g. indirect for now, could add no-opt functions as well)

Testing:
Clang self-build passes and 2nd stage build passes check-all
ninja check-all with newly added tests passing

Reviewed By: tejohnson

Differential Revision: https://reviews.llvm.org/D36850
 		2021-09-27 12:28:07 -07:00
..
Inputs [ThinLTO] Disallow importing for functions with indir branch to block address 2021-07-28 18:02:48 -07:00
DSOLocalEquivalent.ll [llvm] Change DSOLocalEquivalent type if the underlying global value type changes 2021-03-09 15:09:48 -08:00
alias_import.ll
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alias_internal.ll
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alias_resolution.ll
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asm.ll [IRSymTab] Set FB_used on llvm.compiler.used symbols 2021-03-03 16:22:30 -08:00
autoupgrade.ll
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builtin-nostrip.ll
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cache-config.ll
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cache-icall.ll
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cache-import-lists.ll
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cache-typeid-resolutions.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
cache.ll [ThinLTO] [test] cache.ll: Prevent Spotlight indexing of the output dir 2020-07-28 21:21:58 -07:00
callees-metadata.ll
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cfi-devirt.ll [InstCombine] Always try to invert non-canonical predicate of an icmp 2020-07-04 18:12:04 +03:00
cfi-distributed.ll
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cfi-icall-only-defuse.ll
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cfi-icall.ll
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cfi-unsat.ll Restore "[WPD/LowerTypeTests] Delay lowering/removal of type tests until after ICP" 2020-07-14 12:16:57 -07:00
cfi.ll
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crash_debuginfo.ll [test] Make ThinLTO/X86/crash_debuginfo.ll work with -enable-new-pm=1 2020-10-27 12:37:19 -07:00
deadstrip.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
debuginfo-compositetype-import.ll
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debuginfo-cu-import.ll
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devirt-after-icp.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt.ll Don't use $ as suffix for symbol names in ThinLTOBitcodeWriter and other places 2021-03-29 13:03:52 +02:00
devirt2.ll ThinLTO: Fix inline assembly references to static functions with CFI 2021-08-03 11:35:30 -07:00
devirt_alias.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt_available_externally.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt_check.ll [WPD] Add an optional checking mode for debugging devirtualization 2021-02-17 16:46:15 -08:00
devirt_external_comdat_same_guid.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt_local_same_guid.ll
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devirt_multiple_type_test.ll [WPD] Allow virtual calls to be analyzed with multiple type tests 2020-06-24 10:51:24 -07:00
devirt_promote.ll [test] Fix unused FileCheck prefix in ThinLTO test 2020-11-02 09:06:36 -08:00
devirt_promote_legacy.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt_pure_virtual_base.ll [WPD] Fix handling of pure virtual base class 2021-02-23 16:07:09 -08:00
devirt_single_hybrid.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt_vcall_vis_hidden.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
devirt_vcall_vis_public.ll Restore "[LTO/WPD] Enable aggressive WPD under LTO option" 2020-01-27 07:55:05 -08:00
diagnostic-handler-remarks-with-hotness.ll [InlineAdvisor] Add single quotes around caller/callee names 2021-08-10 11:51:31 -07:00
diagnostic-handler-remarks.ll [InlineAdvisor] Add single quotes around caller/callee names 2021-08-10 11:51:31 -07:00
dicompositetype-unique-alias.ll
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dicompositetype-unique.ll
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dicompositetype-unique2.ll
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distributed_import.ll
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distributed_indexes.ll [ThinLTO] Fix bot failures 2021-09-23 18:00:48 -07:00
dontcall.ll [Clang] add support for error+warning fn attrs 2021-08-25 10:34:18 -07:00
dot-dumper-full-lto.ll
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dot-dumper.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
dot-dumper2.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
drop-debug-info.ll
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dsolocal_dllimport.ll
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emit_imports.ll
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empty-module.ll [LTO] Suppress emission of empty combined module by default 2020-05-04 18:31:09 -07:00
empty_module_with_cache.ll
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export.ll
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funcattrs-prop-exported-internal.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
funcattrs-prop-maythrow.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
funcattrs-prop-undefined.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
funcattrs-prop-unknown.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
funcattrs-prop-weak.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
funcattrs-prop.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
funcimport-debug.ll
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funcimport-stats.ll
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funcimport-tbaa.ll
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funcimport.ll
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funcimport2.ll
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funcimport_alwaysinline.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
function_entry_count.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
globals-import-blockaddr.ll [ThinLTO] Disallow importing for functions with indir branch to block address 2021-07-28 18:02:48 -07:00
globals-import-const-fold.ll
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globals-import.ll
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guid_collision.ll
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import-constant.ll Preserve the lexical order for global variables during llvm-link merge 2021-04-26 10:11:34 -07:00
import-dsolocal.ll [ThinLTO] Respect ClearDSOLocalOnDeclarations for unimported functions 2021-07-02 17:08:25 -07:00
import-metadata.ll [ThinLTO] Fix a metadata lost issue with DICompileUnit import. 2020-09-02 14:40:41 -07:00
import-ro-constant.ll [ThinLTO] Always import constants 2020-01-15 19:29:01 +03:00
import-symver.ll [ThinLTO] Import symver directives for imported symbols (PR48214) 2020-12-02 14:56:43 +01:00
import_opaque_type.ll
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index-const-prop-O0.ll
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index-const-prop-alias.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-cache.ll
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index-const-prop-comdat.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-dead.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-full-lto.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-gvref-pie.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-gvref.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-ldst.ll [ThinLTO] Drop dso_local if a GlobalVariable satisfies isDeclarationForLinker() 2020-04-07 15:46:01 -07:00
index-const-prop-linkage.ll [ThinLTO] Respect ClearDSOLocalOnDeclarations for unimported functions 2021-07-02 17:08:25 -07:00
index-const-prop.ll Preserve the lexical order for global variables during llvm-link merge 2021-04-26 10:11:34 -07:00
index-const-prop2.ll Preserve the lexical order for global variables during llvm-link merge 2021-04-26 10:11:34 -07:00
internalize.ll [ThinLTO][Legacy] Compute PreservedGUID based on IRName in Symtab 2020-08-26 10:15:00 -07:00
lazyload_metadata.ll Make lazyload_metadata.ll resilient to the addition of new metadata kinds 2019-12-26 18:23:08 -05:00
linkonce_aliasee_ref_import.ll
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linkonce_odr_unnamed_addr.ll
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linkonce_resolution_comdat.ll [ThinLTO] Add noRecurse and noUnwind thinlink function attribute propagation 2021-09-27 12:28:07 -07:00
lit.local.cfg
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llvm.used.ll
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load-store-caching.ll [ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags 2021-01-27 10:43:51 -08:00
local_name_conflict.ll
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local_name_conflict_var.ll
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mangled_symbol.ll [ThinLTO][Legacy] Compute PreservedGUID based on IRName in Symtab 2020-08-26 10:15:00 -07:00
merge-triple.ll
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module_asm2.ll
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module_asm_glob.ll
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module_summary_graph_traits.ll Fix [ADT][NFC] SCCIterator: Change hasLoop() to hasCycle() 2020-03-01 19:35:58 +02:00
newpm-basic.ll [LTO] Support new PM in ThinLTOCodeGenerator. 2021-06-09 10:05:14 +01:00
nodevirt-nonpromoted-typeid.ll Restore "[WPD/LowerTypeTests] Delay lowering/removal of type tests until after ICP" 2020-07-14 12:16:57 -07:00
noinline.ll
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nossp.ll [ThinLTO][test] Fix X86/nossp.ll after D91816 2020-12-02 13:13:58 -08:00
not-internalized.ll
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personality-local.ll
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personality.ll
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pr35472.ll
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prefix_replace.ll
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printer.ll [NewPM] Cleanup IR printing instrumentation 2021-04-15 09:50:55 -07:00
pseudo-probe-desc-import.ll [CSSPGO] Do not import pseudo probe desc in thinLTO 2021-07-13 18:26:36 -07:00
reference_non_importable.ll
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referenced_by_constant.ll [ThinLTO] Disable "Always import constants" due to compile time issues 2020-01-30 10:12:48 -08:00
save_objects.ll
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section.ll
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strong_non_prevailing.ll Reland "[llvm-nm] Don't report "no symbols" error for files that contain symbols" 2020-01-17 10:08:42 -08:00
thinlto-internalize-doublepromoted.ll [ThinLTO] Handle variable with twice promoted name (Rust) 2020-01-14 10:54:03 -08:00
thinlto-internalize-used.ll
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tli-nobuiltin.ll
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type_test_noindircall.ll Restore "[WPD/LowerTypeTests] Delay lowering/removal of type tests until after ICP" 2020-07-14 12:16:57 -07:00
visibility-elf.ll [ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags 2021-01-27 10:43:51 -08:00
visibility-macho.ll [ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags 2021-01-27 10:43:51 -08:00
weak_externals.ll
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weak_globals_import.ll [ThinLTO] Fix import of multiply defined global variables 2021-02-21 18:34:12 +02:00
weak_resolution.ll [ThinLTO][Legacy] Compute PreservedGUID based on IRName in Symtab 2020-08-26 10:15:00 -07:00
weak_resolution_single.ll [ThinLTO][Legacy] Compute PreservedGUID based on IRName in Symtab 2020-08-26 10:15:00 -07:00
writeonly-with-refs.ll
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writeonly.ll Preserve the lexical order for global variables during llvm-link merge 2021-04-26 10:11:34 -07:00
writeonly2.ll Preserve the lexical order for global variables during llvm-link merge 2021-04-26 10:11:34 -07:00