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| author | bors <bors@rust-lang.org> | 2024-12-15 13:50:38 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2024-12-15 13:50:38 +0000 |
| commit | a611773d80486c8511ed554400eab0681a8bb068 (patch) | |
| tree | 1570b73c0abfda628ce230b1cca6c746430cbe2f /compiler/rustc_resolve/src | |
| parent | 0894fb0fbf457916bb013168476d802852d9dd6a (diff) | |
| parent | 3fc506b4d43938453fd399f403507e4b2031a167 (diff) | |
| download | rust-a611773d80486c8511ed554400eab0681a8bb068.tar.gz rust-a611773d80486c8511ed554400eab0681a8bb068.zip | |
Auto merge of #134117 - DianQK:gep-i8, r=oli-obk
Modifies the index instruction from `gep [0 x %Type]` to `gep %Type` Fixes #133979. This PR modifies the index instruction from `gep [0 x %Type]` to `gep %Type`, which is the same with pointer offset calculation. This will help LLVM calculate various formats of GEP instructions. According to [[RFC] Replacing getelementptr with ptradd](https://discourse.llvm.org/t/rfc-replacing-getelementptr-with-ptradd/68699), we ultimately aim to canonicalize everything to `gep i8`. Based on the results from https://github.com/rust-lang/rust/pull/134117#issuecomment-2531717076, I think we still need to investigate some missing optimizations, so this PR is just a small step forward. r? compiler
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