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| author | bors <bors@rust-lang.org> | 2025-03-14 00:42:31 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2025-03-14 00:42:31 +0000 |
| commit | addae0705c7cf5b2f2ed7faeec026c894f497b3d (patch) | |
| tree | a18501092cb0e2996dad7d2870fb7a4a0bdd80ca /compiler/rustc_codegen_gcc | |
| parent | cbfdf0b014cb04982a9cbeec1578001001167f6e (diff) | |
| parent | 2b15dd1dddf3e412dd4a1fee1ab342cb719eaef1 (diff) | |
| download | rust-addae0705c7cf5b2f2ed7faeec026c894f497b3d.tar.gz rust-addae0705c7cf5b2f2ed7faeec026c894f497b3d.zip | |
Auto merge of #138391 - scottmcm:SSA-discriminants, r=WaffleLapkin
Don't `alloca` just to look at a discriminant Today we're making LLVM do a bunch of extra work when you match on trivial stuff like `Option<bool>` or `ControlFlow<u8>`. This PR changes that so that simple types like `Option<u32>` or `Result<(), Box<Error>>` can stay as `OperandValue::ScalarPair` and we can still read the discriminant from them, rather than needing to write them into memory to have a `PlaceValue` just to get the discriminant out. Fixes #137503
Diffstat (limited to 'compiler/rustc_codegen_gcc')
0 files changed, 0 insertions, 0 deletions