Remove useMachineScheduler and replace it with subtarget options

[oota-llvm.git] / lib / Target / Hexagon / HexagonSubtarget.cpp

diff --git a/lib/Target/Hexagon/HexagonSubtarget.cpp b/lib/Target/Hexagon/HexagonSubtarget.cpp
index 380f023bcf38ff712198bc71e723d615065ff5ca..1717ae3fe888dfbbcc56e263d5f87f89475c2a5a 100644 (file)
--- a/lib/Target/Hexagon/HexagonSubtarget.cpp
+++ b/lib/Target/Hexagon/HexagonSubtarget.cpp
@@ -48,6 +48,10 @@ EnableIEEERndNear(
     cl::Hidden, cl::ZeroOrMore, cl::init(false),
     cl::desc("Generate non-chopped conversion from fp to int."));
 
+static cl::opt<bool> DisableHexagonMISched("disable-hexagon-misched",
+      cl::Hidden, cl::ZeroOrMore, cl::init(false),
+      cl::desc("Disable Hexagon MI Scheduling"));
+
 HexagonSubtarget &
 HexagonSubtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS) {
   // If the programmer has not specified a Hexagon version, default to -mv4.
@@ -91,3 +95,9 @@ HexagonSubtarget::HexagonSubtarget(StringRef TT, StringRef CPU, StringRef FS,
 
 // Pin the vtable to this file.
 void HexagonSubtarget::anchor() {}
+
+bool HexagonSubtarget::enableMachineScheduler() const {
+  if (DisableHexagonMISched.getNumOccurrences())
+    return !DisableHexagonMISched;
+  return true;
+}