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Unused Argument Warnings in Intrinsics Without Body #135598

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vayunbiyani opened this issue Jan 16, 2025 · 2 comments
Open

Unused Argument Warnings in Intrinsics Without Body #135598

vayunbiyani opened this issue Jan 16, 2025 · 2 comments
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C-bug Category: This is a bug. needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@vayunbiyani
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Problem:
The compiler emits warnings about unused arguments in intrinsic functions without bodies (when #[rustc_intrinsic] is used). These arguments are inherently unused, but the warnings create unnecessary noise.

Proposed Solution:
Update the compiler to automatically suppress unused argument warnings for intrinsics without bodies. This eliminates the need for manual workarounds like prefixing variable names with _.

Issue reproduced here:
#135333 (comment)
@vayunbiyani vayunbiyani added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jan 16, 2025
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jan 16, 2025
@vayunbiyani vayunbiyani mentioned this issue Jan 16, 2025
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@RalfJung
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Cc @oli-obk

@cyrgani
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cyrgani commented Jan 16, 2025

@rustbot label -I-ICE

@rustbot rustbot removed the I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ label Jan 16, 2025
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C-bug Category: This is a bug. needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@RalfJung @rustbot @vayunbiyani @cyrgani