1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index 89aab260366..008aeffd171 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -353,3 +353,10 @@ bool ARMSubtarget::useMovt(const MachineFunction &MF) const {
   return UseMovt && (isTargetWindows() ||
                      !MF.getFunction()->hasFnAttribute(Attribute::MinSize));
 }
+
+bool ARMSubtarget::useFastISel() const {
+  // Thumb2 support on iOS; ARM support on iOS, Linux and NaCl.
+  return TM.Options.EnableFastISel &&
+         ((isTargetMachO() && !isThumb1Only()) ||
+          (isTargetLinux() && !isThumb()) || (isTargetNaCl() && !isThumb()));
+}