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safety-checker: support #copy #312

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Dec 12, 2022
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safety-checker: support #copy #312

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4 changes: 4 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -32,6 +32,10 @@
([PR #303](https://github.com/jasmin-lang/jasmin/pull/303);
fixes [#301](https://github.com/jasmin-lang/jasmin/issues/301)).

- Safety checker handles the `#copy` operator
([PR #312](https://github.com/jasmin-lang/jasmin/pull/312);
fixes [#308](https://github.com/jasmin-lang/jasmin/issues/308)).

## Other changes

- Explicit if-then-else in flag combinations is no longer supported
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8 changes: 8 additions & 0 deletions compiler/safety/success/copy.jazz
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@@ -0,0 +1,8 @@
export fn test(reg u64 x) -> reg u64 {
reg u64[1] r;
stack u64[1] s;
r[0] = x;
s = #copy(r);
x = s[0];
return x;
}
1 change: 1 addition & 0 deletions compiler/src/safety/safetyInterpreter.ml
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Expand Up @@ -1577,6 +1577,7 @@ end = struct
let cr = { ginstr with i_desc = Cassgn (lv, tag, Bty (U sz), er) } in
aeval_if asmOp ginstr c [cl] [cr] state

| Copn ([ lv ], _, Ocopy _, [ e ])
| Cassgn (lv, _, _, e) ->
let abs = AbsExpr.abs_assign
state.abs
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