From ae25529f570c16fd37596af49d69f381aaa83f5a Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Mon, 23 Dec 2024 00:40:57 +1300
Subject: [PATCH] [CHERIoT] Enable FeatureUnalignedScalarMem for cheriot.

This is a performance heuristic that signals that scalar unaligned
memory accesses are fast, i.e. not emulated.
---
 llvm/lib/Target/RISCV/RISCVProcessors.td | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Target/RISCV/RISCVProcessors.td b/llvm/lib/Target/RISCV/RISCVProcessors.td
index c5a4e3fec921..d405ba45a272 100644
--- a/llvm/lib/Target/RISCV/RISCVProcessors.td
+++ b/llvm/lib/Target/RISCV/RISCVProcessors.td
@@ -210,4 +210,5 @@ def CHERIOT : RISCVProcessorModel<"cheriot",
                                     FeatureCheri,
                                     FeatureCapMode,
                                     FeatureStdExtC,
-                                    FeatureStdExtM]>;
+                                    FeatureStdExtM,
+                                    FeatureUnalignedScalarMem]>;