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cg_llvm: Use LLVMDIBuilderCreateEnumeratorOfArbitraryPrecision#156746

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cg_llvm: Use LLVMDIBuilderCreateEnumeratorOfArbitraryPrecision#156746
Zalathar wants to merge 2 commits into
rust-lang:mainfrom
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This PR replaces our custom LLVMRustDIBuilderCreateEnumerator FFI binding with an equivalent LLVM-C binding to LLVMDIBuilderCreateEnumeratorOfArbitraryPrecision, which was introduced in LLVM 21.

I have also added comments to the remaining LLVMRustDIBuilder functions explaining why they currently can't use an LLVM-C binding.

@rustbot rustbot added A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels May 19, 2026
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rustbot commented May 19, 2026

r? @davidtwco

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A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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