diff --git a/projects/clr/rocclr/compiler/lib/utils/OPTIONS.def b/projects/clr/rocclr/compiler/lib/utils/OPTIONS.def
index 97beab603e..385727cec0 100644
--- a/projects/clr/rocclr/compiler/lib/utils/OPTIONS.def
+++ b/projects/clr/rocclr/compiler/lib/utils/OPTIONS.def
@@ -747,6 +747,17 @@ OPTION(OT_BOOL, \
        SCUseBufferForHsaGlobal, \
        false, 0, 0, NULL, \
        "HSA: use buffer instructions instead of flat for global memory")
+       
+// -scras=int or --sc-si-opt-reg-alloc-strategy (default 0)
+// 0 let shader compiler choose reg alloc strategy
+// keep this updated with SCShaderSi.h
+OPTION(OT_UINT32, \
+      OA_RUNTIME|OVIS_SUPPORT|OVA_REQUIRED|OA_SEPARATOR_EQUAL, \
+      "scras", "sc-si-opt-reg-alloc-strategy", \
+      SCSIOptRegAllocStrategy, \
+      0, 0, 3, NULL, \
+      "Set SI+ shader compiler register allocation strategy 0-default, "
+      "1-balanced, 2-minimize GPRs, 3-minimize moves (default 0).")
 
 //  -fuser-no-inline  -fno-user-no-inline
 OPTION(OT_BOOL, \