Frame size

src/coreclr/jit/compiler.h

@@ -4351,6 +4351,9 @@ class Compiler
     void lvaAssignVirtualFrameOffsetsToArgs();
     bool lvaGetRelativeOffsetToCallerAllocatedSpaceForParameter(unsigned lclNum, int* offset);
     void lvaAssignVirtualFrameOffsetsToLocals();
+#ifdef TARGET_XARCH
+    unsigned* lvaComputeOptimalFrameLayoutOrder(int stkOffs, const UINT* allocOrder);
+#endif
     bool lvaParamHasLocalStackSpace(unsigned lclNum);
     int lvaAllocLocalAndSetVirtualOffset(unsigned lclNum, unsigned size, int stkOffs);
     int lvaAllocAsyncContexts(int stkOffs);

src/coreclr/jit/jitconfigvalues.h

@@ -697,6 +697,7 @@ RELEASE_CONFIG_INTEGER(JitExtDefaultPolicyProfScale, "JitExtDefaultPolicyProfSca
 RELEASE_CONFIG_INTEGER(JitInlinePolicyModel, "JitInlinePolicyModel", 0)
 RELEASE_CONFIG_INTEGER(JitInlinePolicyProfile, "JitInlinePolicyProfile", 0)
 RELEASE_CONFIG_INTEGER(JitInlinePolicyProfileThreshold, "JitInlinePolicyProfileThreshold", 40)
+RELEASE_CONFIG_INTEGER(JitFrameLayoutMaxSavingsThreshold, "JitFrameLayoutMaxSavingsThreshold", 0)
 CONFIG_STRING(JitObjectStackAllocationRange, "JitObjectStackAllocationRange")
 RELEASE_CONFIG_INTEGER(JitObjectStackAllocation, "JitObjectStackAllocation", 1)
 RELEASE_CONFIG_INTEGER(JitObjectStackAllocationRefClass, "JitObjectStackAllocationRefClass", 1)