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xermicusandLJ
68e8b167f5
- Remove the buggy `fn find_value_uses()` - The logic flips from default-skip to default-keep Closes #588 --------- Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com> Co-authored-by: LJ <81748770+elle-j@users.noreply.github.com>
32 lines
1.4 KiB
Plaintext
32 lines
1.4 KiB
Plaintext
object "FunctionCvReturnOnly" {
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code { let s := datasize("FunctionCvReturnOnly_deployed") codecopy(0, dataoffset("FunctionCvReturnOnly_deployed"), s) return(0, s) }
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object "FunctionCvReturnOnly_deployed" {
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code {
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// `tally` hands callvalue() back through its return variable on the fall-through path,
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// so the binding's only use is recorded in `Function::return_values` rather than in any
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// statement. Three callvalue() sites put the module over the outlined-callvalue
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// threshold, so codegen runs the dead-callvalue analysis; it must count return
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// variables as uses, otherwise the binding is skipped and the function hands back the
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// zero its return slot was seeded with. Two call sites and a body above the
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// always-inline size keep `tally` a real function instead of being inlined away.
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function tally(seed) -> r {
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sstore(10, seed)
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sstore(11, add(seed, 1))
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sstore(12, add(seed, 2))
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sstore(13, add(seed, 3))
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sstore(14, add(seed, 4))
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sstore(15, add(seed, 5))
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sstore(16, add(seed, 6))
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sstore(17, add(seed, 7))
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r := callvalue()
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}
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let sel := calldataload(0)
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switch sel
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case 1 { sstore(0, tally(1)) }
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case 2 { sstore(0, tally(2)) }
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case 3 { sstore(0, add(callvalue(), calldatasize())) }
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default { sstore(0, add(callvalue(), 0x20)) }
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}
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}
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}
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