[AArch64] Support lowering smaller than legal LOOP_DEP_MASKs to whilewr/rw #171982
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…wr/rw This adds support for lowering smaller-than-legal masks such as: ``` <vscale x 8 x i1> @llvm.loop.dependence.war.mask.nxv8i1(ptr %a, ptr %b, i64 1) ``` To a whilewr + unpack. It also slightly simplifies the lowering.
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@llvm/pr-subscribers-backend-aarch64 Author: Benjamin Maxwell (MacDue) ChangesThis adds support for lowering smaller-than-legal masks such as: To a whilewr + unpack. It also slightly simplifies the lowering. Full diff: https://github.com/llvm/llvm-project/pull/171982.diff 2 Files Affected:
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sdesmalen-arm
approved these changes
Dec 12, 2025
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This adds support for lowering smaller-than-legal masks such as:
To a whilewr + unpack. It also slightly simplifies the lowering.