Enum miri::interpret::StackPopCleanup

pub enum StackPopCleanup {
    Goto {
        ret: Option<BasicBlock>,
        unwind: StackPopUnwind,
    },
    Root {
        cleanup: bool,
    },
}

Variants

Goto

Fields

ret: Option<BasicBlock>

unwind: StackPopUnwind

Jump to the next block in the caller, or cause UB if None (that’s a function that may never return). Also store layout of return place so we can validate it at that layout. ret stores the block we jump to on a normal return, while unwind stores the block used for cleanup during unwinding.

Root

Fields

cleanup: bool

The root frame of the stack: nowhere else to jump to. cleanup says whether locals are deallocated. Static computation wants them leaked to intern what they need (and just throw away the entire ecx when it is done).

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: 8 bytes

Size for each variant:

• Goto: 8 bytes
• Root: 1 byte