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0547c41f90
rust/compiler/rustc_ast
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bors 0547c41f90 Auto merge of #116672 - maurer:128-align, r=nikic 
LLVM 18 x86 data layout update

With https://reviews.llvm.org/D86310 LLVM now has i128 aligned to 16-bytes on x86 based platforms. This will be in LLVM-18. This patch updates all our spec targets to be 16-byte aligned, and removes the alignment when speaking to older LLVM.

This results in Rust overaligning things relative to LLVM on older LLVMs.

This implements MCP https://github.com/rust-lang/compiler-team/issues/683.

See #54341
2024-01-20 00:56:53 +00:00
..
src Auto merge of #116672 - maurer:128-align, r=nikic 2024-01-20 00:56:53 +00:00
Cargo.toml Update to bitflags 2 in the compiler 2023-12-30 18:17:28 +01:00
README.md docs(rustc_ast): update crate descriptions 2021-11-02 21:11:17 -05:00

README.md

The rustc_ast crate contains those things concerned purely with syntax – that is, the AST ("abstract syntax tree"), along with some definitions for tokens and token streams, data structures/traits for mutating ASTs, and shared definitions for other AST-related parts of the compiler (like the lexer and macro-expansion).

For more information about how these things work in rustc, see the rustc dev guide: