1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
index 08ca20b5..7591541 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
@@ -260,7 +260,10 @@ static void query(const MachineInstr &MI, bool &Read, bool &Write,
 // Test whether Def is safe and profitable to rematerialize.
 static bool shouldRematerialize(const MachineInstr &Def,
                                 const WebAssemblyInstrInfo *TII) {
-  return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def);
+  return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def) &&
+         llvm::all_of(Def.all_uses(), [](const MachineOperand &MO) {
+           return MO.getReg().isVirtual();
+         });
 }
 
 // Identify the definition for this register at this point. This is a