1 files changed, 9 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/CallingConvLower.h b/include/llvm/CodeGen/CallingConvLower.h
index f824e73433..4bc8cecaff 100644
--- a/include/llvm/CodeGen/CallingConvLower.h
+++ b/include/llvm/CodeGen/CallingConvLower.h
@@ -348,6 +348,15 @@ public:
     return AllocateStack(Size, Align);
   }
 
+  /// Version of AllocateStack with list of extra registers to be shadowed.
+  /// Note that, unlike AllocateReg, this shadows ALL of the shadow registers.
+  unsigned AllocateStack(unsigned Size, unsigned Align,
+                         const uint16_t *ShadowRegs, unsigned NumShadowRegs) {
+    for (unsigned i = 0; i < NumShadowRegs; ++i)
+      MarkAllocated(ShadowRegs[i]);
+    return AllocateStack(Size, Align);
+  }
+
   // HandleByVal - Allocate a stack slot large enough to pass an argument by
   // value. The size and alignment information of the argument is encoded in its
   // parameter attribute.