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| author | bors <bors@rust-lang.org> | 2018-01-19 10:18:52 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2018-01-19 10:18:52 +0000 |
| commit | 5965b790142eff7a8546e947914e7a8e00c61575 (patch) | |
| tree | b847a01aee36a41a06f104edc2c75ac30a4b0ab5 /src/test/codegen/gdb_debug_script_load.rs | |
| parent | b71cbd8443990efa2b697f7eedfd825fd3f7b0b1 (diff) | |
| parent | 06e32d044d72bea2859d741b4d5bf8775e326185 (diff) | |
| download | rust-5965b790142eff7a8546e947914e7a8e00c61575.tar.gz rust-5965b790142eff7a8546e947914e7a8e00c61575.zip | |
Auto merge of #47503 - arielb1:check-size, r=eddyb
avoid double-unsizing arrays in bytestring match lowering The match lowering code, when lowering matches against bytestrings, works by coercing both the scrutinee and the pattern to `&[u8]` and then comparing them using `<[u8] as Eq>::eq`. If the scrutinee is already of type `&[u8]`, then unsizing it is both unneccessary and a trait error caught by the new and updated MIR typeck, so this PR changes lowering to avoid doing that (match lowering tried to avoid that before, but that attempt was quite broken). Fixes #46920. r? @eddyb
Diffstat (limited to 'src/test/codegen/gdb_debug_script_load.rs')
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