1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyUtilities.h b/llvm/lib/Target/WebAssembly/WebAssemblyUtilities.h
index cccc96152f2..595491f1bf5 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyUtilities.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyUtilities.h
@@ -18,7 +18,9 @@
 
 namespace llvm {
 
+class MachineBasicBlock;
 class MachineInstr;
+class MachineLoop;
 class WebAssemblyFunctionInfo;
 
 namespace WebAssembly {
@@ -30,6 +32,12 @@ bool isChild(const MachineInstr &MI, const WebAssemblyFunctionInfo &MFI);
 bool isCallIndirect(const MachineInstr &MI);
 
 } // end namespace WebAssembly
+
+/// Return the "bottom" block of a loop. This differs from
+/// MachineLoop::getBottomBlock in that it works even if the loop is
+/// discontiguous.
+MachineBasicBlock *LoopBottom(const MachineLoop *Loop);
+
 } // end namespace llvm
 
 #endif