Struct cretonne::cursor::FuncCursor
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pub struct FuncCursor<'f> { pub func: &'f mut Function, // some fields omitted }
Function cursor.
A FuncCursor
holds a mutable reference to a whole ir::Function
while keeping a position
too. The function can be re-borrowed by accessing the public cur.func
member.
This cursor is for use before legalization. The inserted instructions are not given an encoding.
Fields
func: &'f mut Function
The referenced function.
Methods
impl<'f> FuncCursor<'f>
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pub fn new(func: &'f mut Function) -> FuncCursor<'f>
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Create a new FuncCursor
pointing nowhere.
pub fn use_srcloc(&mut self, inst: Inst)
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Use the source location of inst
for future instructions.
pub fn ins(&mut self) -> InsertBuilder<&mut FuncCursor<'f>>
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Create an instruction builder that inserts an instruction at the current position.
Trait Implementations
impl<'f> Cursor for FuncCursor<'f>
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fn position(&self) -> CursorPosition
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Get the current cursor position.
fn set_position(&mut self, pos: CursorPosition)
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Set the current position.
fn srcloc(&self) -> SourceLoc
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Get the source location that should be assigned to new instructions.
fn set_srcloc(&mut self, srcloc: SourceLoc)
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Set the source location that should be assigned to new instructions.
fn layout(&self) -> &Layout
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Borrow a reference to the function layout that this cursor is navigating.
fn layout_mut(&mut self) -> &mut Layout
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Borrow a mutable reference to the function layout that this cursor is navigating.
fn with_srcloc(self, srcloc: SourceLoc) -> Self where
Self: Sized,
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Self: Sized,
Exchange this cursor for one with a set source location. Read more
fn at_position(self, pos: CursorPosition) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at pos
.
fn at_inst(self, inst: Inst) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at inst
. Read more
fn at_first_insertion_point(self, ebb: Ebb) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at the first insertion point for ebb
. This differs from at_first_inst
in that it doesn't assume that any instructions have been inserted into ebb
yet. Read more
fn at_first_inst(self, ebb: Ebb) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at the first instruction in ebb
. Read more
fn at_last_inst(self, ebb: Ebb) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at the last instruction in ebb
. Read more
fn after_inst(self, inst: Inst) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned after inst
. Read more
fn at_top(self, ebb: Ebb) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at the top of ebb
. Read more
fn at_bottom(self, ebb: Ebb) -> Self where
Self: Sized,
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Self: Sized,
Rebuild this cursor positioned at the bottom of ebb
. Read more
fn current_ebb(&self) -> Option<Ebb>
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Get the EBB corresponding to the current position.
fn current_inst(&self) -> Option<Inst>
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Get the instruction corresponding to the current position, if any.
fn goto_after_inst(&mut self, inst: Inst)
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Go to the position after a specific instruction, which must be inserted in the layout. New instructions will be inserted after inst
. Read more
fn goto_inst(&mut self, inst: Inst)
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Go to a specific instruction which must be inserted in the layout. New instructions will be inserted before inst
. Read more
fn goto_first_insertion_point(&mut self, ebb: Ebb)
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Go to the position for inserting instructions at the beginning of ebb
, which unlike goto_first_inst
doesn't assume that any instructions have been inserted into ebb
yet. Read more
fn goto_first_inst(&mut self, ebb: Ebb)
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Go to the first instruction in ebb
.
fn goto_last_inst(&mut self, ebb: Ebb)
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Go to the last instruction in ebb
.
fn goto_top(&mut self, ebb: Ebb)
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Go to the top of ebb
which must be inserted into the layout. At this position, instructions cannot be inserted, but next_inst()
will move to the first instruction in ebb
. Read more
fn goto_bottom(&mut self, ebb: Ebb)
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Go to the bottom of ebb
which must be inserted into the layout. At this position, inserted instructions will be appended to ebb
. Read more
fn next_ebb(&mut self) -> Option<Ebb>
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Go to the top of the next EBB in layout order and return it. Read more
fn prev_ebb(&mut self) -> Option<Ebb>
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Go to the bottom of the previous EBB in layout order and return it. Read more
fn next_inst(&mut self) -> Option<Inst>
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Move to the next instruction in the same EBB and return it. Read more
fn prev_inst(&mut self) -> Option<Inst>
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Move to the previous instruction in the same EBB and return it. Read more
fn insert_inst(&mut self, inst: Inst)
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Insert an instruction at the current position. Read more
fn remove_inst(&mut self) -> Inst
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Remove the instruction under the cursor. Read more
fn remove_inst_and_step_back(&mut self) -> Inst
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Remove the instruction under the cursor. Read more
fn insert_ebb(&mut self, new_ebb: Ebb)
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Insert an EBB at the current position and switch to it. Read more
impl<'c, 'f> InstInserterBase<'c> for &'c mut FuncCursor<'f>
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fn data_flow_graph(&self) -> &DataFlowGraph
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Get an immutable reference to the data flow graph.
fn data_flow_graph_mut(&mut self) -> &mut DataFlowGraph
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Get a mutable reference to the data flow graph.
fn insert_built_inst(self, inst: Inst, _: Type) -> &'c mut DataFlowGraph
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Insert a new instruction which belongs to the DFG.