fix(int): avoid infinite recursion on left shift #707 #708
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Please, see this discussion for the full context: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.5Bwasm32.5D.20Infinite.20recursion.20.60compiler-builtins.60.20.60__multi3.60 Signed-off-by: Enzo "raskyld" Nocera <enzo@nocera.eu> We determined that some recursion problems on SPARC and WASM were due to infinite recusion. This was introduced at 9c6fcb5 ("Split Int into Int and MinInt") when moving the implementation of `widen_hi` from something on each `impl` block to a default on the trait. The reasoning is not fully understood, but undoing this portion of the change seems to resolve the issue. [ add the above context - Trevor ] Signed-off-by: Trevor Gross <tmgross@umich.edu>
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Cc @thejpster, this should hopefully fix your sparc failure |
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This includes [1], which should help resolve an infinite recusion issue on WASM and SPARC (possibly other platforms). See [2] and [3] for further details. [1]: rust-lang/compiler-builtins#708 [2]: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/sparc-unknown-none-elf.20regresssion.20between.20compiler-built.2E.2E.2E [3]: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.5Bwasm32.5D.20Infinite.20recursion.20.60compiler-builtins.60.20.60__multi3.60
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Update `compiler-builtins` to 0.1.133 This includes [1], which should help resolve an infinite recusion issue on WASM and SPARC (possibly other platforms). See [2] and [3] for further details. [1]: rust-lang/compiler-builtins#708 [2]: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/sparc-unknown-none-elf.20regresssion.20between.20compiler-built.2E.2E.2E [3]: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.5Bwasm32.5D.20Infinite.20recursion.20.60compiler-builtins.60.20.60__multi3.60
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Recreated PR of #707 with an adjusted message and a second patch adding a note.