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aarch64/inst/unwind.rs: handle zero-length prologues correctly.

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Julian Seward
2020-11-12 17:01:30 +01:00
committed by julian-seward1
parent 19640367db
commit cbce34af0a
1 changed files with 6 additions and 1 deletions
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7
cranelift/codegen/src/isa/aarch64/inst/unwind.rs
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@@ -102,7 +102,12 @@ impl UnwindInfoGenerator<Inst> for AArch64UnwindInfo {
// TODO epilogues // TODO epilogues
let prologue_size = context.insts_layout[context.prologue.end as usize - 1]; let prologue_size = if context.prologue.is_empty() {
0
} else {
context.insts_layout[context.prologue.end as usize - 1]
};
Ok(Some(UnwindInfo { Ok(Some(UnwindInfo {
prologue_size, prologue_size,
prologue_unwind_codes: codes, prologue_unwind_codes: codes,