Update release notes

topperc · topperc · commit 10ab767a75f4 · 2024-01-12T13:41:47.000-08:00
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
@@ -153,6 +153,7 @@ Changes to the RISC-V Backend
   "SiFive Custom Instruction Extension" as SiFive defines it. The LLVM project
   needs to work with SiFive to define and document real extension names for
   individual CSRs and instructions.
+* ``-mcpu=sifive-p450`` was added.
 
 Changes to the WebAssembly Backend
 ----------------------------------
