What is Leaf function?
A function that calls no other functions. Its return address is never overwritten, so it need not be saved, and it often needs no stack frame at all.
Field: ISA & Assembly
Leaf function in the explanations
A leaf function never executes jal, so ra stays intact and it can ret without saving it.
A function that calls no other functions (a leaf function) …
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Related terms
Return address Stack frame Addressing mode Application binary interface (ABI) Assembler Branch delay slot Callee-saved register Caller-saved register Calling convention Compressed instruction