diff --git a/llvm/lib/CodeGen/StackMaps.cpp b/llvm/lib/CodeGen/StackMaps.cpp
index 383c91259ffc8..23a3cb7cc7f9a 100644
--- a/llvm/lib/CodeGen/StackMaps.cpp
+++ b/llvm/lib/CodeGen/StackMaps.cpp
@@ -260,7 +260,7 @@ StackMaps::parseRegisterLiveOutMask(const uint32_t *Mask) const {
 
   // Create a LiveOutReg for each bit that is set in the register mask.
   for (unsigned Reg = 0, NumRegs = TRI->getNumRegs(); Reg != NumRegs; ++Reg)
-    if ((Mask[Reg / 32] >> Reg % 32) & 1)
+    if ((Mask[Reg / 32] >> (Reg % 32)) & 1)
       LiveOuts.push_back(createLiveOutReg(Reg, TRI));
 
   // We don't need to keep track of a register if its super-register is already