Landing: e5ca6a0963a9

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Project / Subsystem

gcc / gcc/risc-v

Date

2026-02-28

Author

Bohan Lei

Commit

e5ca6a0963a9000e0deb1274ef5e3e699d5b85d0

Source

github

Perf win

No

Breaking

No

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All attributes

project: gcc
subsystem: gcc/risc-v
patch_id: —
commit_hash: e5ca6a0963a9000e0deb1274ef5e3e699d5b85d0
source_type: github
headline: RISC-V: Specify -mcpu When --with-cpu Is Used
tldr: The compiler now consistently uses `-mcpu` instead of `-march` when the `--with-cpu` option is used for RISC-V, aligning its behavior with explicit `-mcpu` usa…
author: Bohan Lei
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • risc-v
• configuration
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/e5ca6a0963a9000e0deb1274ef5e3e699d5b85d0
date: 2026-02-28T00:00:00.000Z

This commit addresses an inconsistency in how the --with-cpu option is handled for RISC-V architectures. Previously, it specified only the -march option, which defines the instruction set architecture. This commit changes the behavior to specify -mcpu instead, which encompasses both -march (architecture) and -mtune (tuning for a specific processor), ensuring that --with-cpu acts consistently with an explicit -mcpu option. This change provides a more complete and expected configuration for users.