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LLVM 20.0.0git
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Group flags (Linkage, NotEligibleToImport, etc.) as a bitfield. More...
#include "llvm/IR/ModuleSummaryIndex.h"
Public Member Functions | |
| GVFlags (GlobalValue::LinkageTypes Linkage, GlobalValue::VisibilityTypes Visibility, bool NotEligibleToImport, bool Live, bool IsLocal, bool CanAutoHide, ImportKind ImportType) | |
| Convenience Constructors. | |
Public Attributes | |
| unsigned | Linkage: 4 |
| The linkage type of the associated global value. | |
| unsigned | Visibility: 2 |
| Indicates the visibility. | |
| unsigned | NotEligibleToImport: 1 |
| Indicate if the global value cannot be imported (e.g. | |
| unsigned | Live: 1 |
| In per-module summary, indicate that the global value must be considered a live root for index-based liveness analysis. | |
| unsigned | DSOLocal: 1 |
| Indicates that the linker resolved the symbol to a definition from within the same linkage unit. | |
| unsigned | CanAutoHide: 1 |
| In the per-module summary, indicates that the global value is linkonce_odr and global unnamed addr (so eligible for auto-hiding via hidden visibility). | |
| unsigned | ImportType: 1 |
| This field is written by the ThinLTO indexing step to postlink combined summary. | |
Group flags (Linkage, NotEligibleToImport, etc.) as a bitfield.
Definition at line 463 of file ModuleSummaryIndex.h.
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inlineexplicit |
Convenience Constructors.
Definition at line 507 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::CanAutoHide |
In the per-module summary, indicates that the global value is linkonce_odr and global unnamed addr (so eligible for auto-hiding via hidden visibility).
In the combined summary, indicates that the prevailing linkonce_odr copy can be auto-hidden via hidden visibility when it is upgraded to weak_odr in the backend. This is legal when all copies are eligible for auto-hiding (i.e. all copies were linkonce_odr global unnamed addr. If any copy is not (e.g. it was originally weak_odr, we cannot auto-hide the prevailing copy as it means the symbol was externally visible.
Definition at line 500 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::DSOLocal |
Indicates that the linker resolved the symbol to a definition from within the same linkage unit.
Definition at line 489 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::ImportType |
This field is written by the ThinLTO indexing step to postlink combined summary.
The value is interpreted as 'ImportKind' enum defined above.
Definition at line 504 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::Linkage |
The linkage type of the associated global value.
One use is to flag values that have local linkage types and need to have module identifier appended before placing into the combined index, to disambiguate from other values with the same name. In the future this will be used to update and optimize linkage types based on global summary-based analysis.
Definition at line 471 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::Live |
In per-module summary, indicate that the global value must be considered a live root for index-based liveness analysis.
Used for special LLVM values such as llvm.global_ctors that the linker does not know about.
In combined summary, indicate that the global value is live.
Definition at line 485 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::NotEligibleToImport |
Indicate if the global value cannot be imported (e.g.
it cannot be renamed or references something that can't be renamed).
Definition at line 478 of file ModuleSummaryIndex.h.
| unsigned llvm::GlobalValueSummary::GVFlags::Visibility |
Indicates the visibility.
Definition at line 474 of file ModuleSummaryIndex.h.
1.9.6