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[RISCV] Add a release note about tail folding being enabled. NFC #153535

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Merged
lukel97 merged 2 commits into from
Aug 15, 2025
Merged

[RISCV] Add a release note about tail folding being enabled. NFC #153535

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[RISCV] Add a release note about tail folding being enabled. NFC
lukel97 Aug 14, 2025
b2d5bce
Drop -mllvm from the flag
lukel97 Aug 15, 2025
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3 changes: 3 additions & 0 deletions llvm/docs/ReleaseNotes.md
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Expand Up @@ -109,6 +109,9 @@ Changes to the PowerPC Backend
Changes to the RISC-V Backend
-----------------------------

* The loop vectorizer now performs tail folding by default on RISC-V, which
removes the need for a scalar epilogue loop. To restore the previous behaviour
use `-prefer-predicate-over-epilogue=scalar-epilogue`.
* `llvm-objdump` now has basic support for switching between disassembling code
and data using mapping symbols such as `$x` and `$d`. Switching architectures
using `$x` with an architecture string suffix is not yet supported.
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