[PATCH] D71255: llc: Change behavior of -mattr with existing attribute
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Dec 10 04:48:45 PST 2019
arsenm created this revision.
arsenm added reviewers: echristo, ahatanak.
Herald added subscribers: jfb, dexonsmith, aheejin, jgravelle-google, sbc100, wdng, dschuff.
Herald added a project: LLVM.
arsenm added a parent revision: D71253: llc/MIR: Fix setFunctionAttributes for MIR functions.
arsenm added a parent revision: D71254: llc: Change behavior of -mcpu with existing attribute.
Append this to the existing target-features attribute on the function.
Some flags ignore existing attributes, and some overwrite them. Move
towards consistently respecting existing attributes if present. Since
target features act as a state machine on their own, append to the
function attribute. The backend default added feature list, function
attributes, and -mattr will all be appended together, and the later
features can individually toggle the earlier settings.
https://reviews.llvm.org/D71255
Files:
llvm/include/llvm/CodeGen/CommandFlags.inc
llvm/test/CodeGen/WebAssembly/target-features.ll
llvm/test/Other/opt-override-mcpu-mattr.ll
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