Enum rustc_codegen_llvm::llvm::LLVMModFlagBehavior

#[repr(C)]
pub enum LLVMModFlagBehavior {
    Error,
    Warning,
    Require,
    Override,
    Append,
    AppendUnique,
    Max,
    Min,
}

LLVM’s Module::ModFlagBehavior, defined in llvm/include/llvm/IR/Module.h.

When merging modules (e.g. during LTO), their metadata flags are combined. Conflicts are resolved according to the merge behaviors specified here. Flags differing only in merge behavior are still considered to be in conflict.

In order for Rust-C LTO to work, we must specify behaviors compatible with Clang. Notably, ‘Error’ and ‘Warning’ cannot be mixed for a given flag.

Variants

Error

Warning

Require

Override

Append

AppendUnique

Max

Min

Trait Implementations

impl Clone for LLVMModFlagBehavior

fn clone(&self) -> LLVMModFlagBehavior

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq<LLVMModFlagBehavior> for LLVMModFlagBehavior

fn eq(&self, other: &LLVMModFlagBehavior) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for LLVMModFlagBehavior

impl StructuralPartialEq for LLVMModFlagBehavior

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes

Size for each variant:

• Error: 0 bytes
• Warning: 0 bytes
• Require: 0 bytes
• Override: 0 bytes
• Append: 0 bytes
• AppendUnique: 0 bytes
• Max: 0 bytes
• Min: 0 bytes