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Codegen: Align representation of stackmap with SpiderMonkey

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This commit aligns the representation of stackmaps to be the same
as Spidermonkey's by:
 * Reversing the order of the bitmap from low addresses to high addresses
 * Including incoming stack arguments
 * Excluding outgoing stack arguments

Additionally, some accessor functions were added to allow Spidermonkey
to access the internals of the bitmap.
This commit is contained in:
Ryan Hunt
2020-01-06 15:48:12 -06:00
parent bbc0a328c7
commit 946251e655
7 changed files with 85 additions and 36 deletions
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cranelift/codegen/src/ir/mod.rs
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@@ -53,7 +53,7 @@ pub use crate::ir::libcall::{get_libcall_funcref, get_probestack_funcref, LibCal
pub use crate::ir::memflags::MemFlags;
pub use crate::ir::progpoint::{ExpandedProgramPoint, ProgramOrder, ProgramPoint};
pub use crate::ir::sourceloc::SourceLoc;
pub use crate::ir::stackslot::{StackSlotData, StackSlotKind, StackSlots};
pub use crate::ir::stackslot::{StackLayoutInfo, StackSlotData, StackSlotKind, StackSlots};
pub use crate::ir::table::TableData;
pub use crate::ir::trapcode::TrapCode;
pub use crate::ir::types::Type;