[PowerPC] Support the (old) cntlz instruction alias

[oota-llvm.git] / lib / Target / X86 / X86ISelLowering.h

diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 6ef6945fc4ded6c14e9e1e40579de96891e5ce91..eb904f31788cd391a28946a5b479ce2cc59bac02 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -158,6 +158,10 @@ namespace llvm {
       /// vector to a GPR.
       MMX_MOVD2W,
 
+      /// MMX_MOVW2D - Copies a GPR into the low 32-bit word of a MMX vector
+      /// and zero out the high word.
+      MMX_MOVW2D,
+
       /// PEXTRB - Extract an 8-bit value from a vector and zero extend it to
       /// i32, corresponds to X86::PEXTRB.
       PEXTRB,
@@ -554,7 +558,8 @@ namespace llvm {
   //  X86 Implementation of the TargetLowering interface
   class X86TargetLowering final : public TargetLowering {
   public:
-    explicit X86TargetLowering(const X86TargetMachine &TM);
+    explicit X86TargetLowering(const X86TargetMachine &TM,
+                               const X86Subtarget &STI);
 
     unsigned getJumpTableEncoding() const override;
 
@@ -739,6 +744,10 @@ namespace llvm {
     bool isZExtFree(EVT VT1, EVT VT2) const override;
     bool isZExtFree(SDValue Val, EVT VT2) const override;
 
+    /// Return true if folding a vector load into ExtVal (a sign, zero, or any
+    /// extend node) is profitable.
+    bool isVectorLoadExtDesirable(SDValue) const override;
+
     /// Return true if an FMA operation is faster than a pair of fmul and fadd
     /// instructions. fmuladd intrinsics will be expanded to FMAs when this
     /// method returns true, otherwise fmuladd is expanded to fmul + fadd.
@@ -782,10 +791,6 @@ namespace llvm {
     bool shouldReduceLoadWidth(SDNode *Load, ISD::LoadExtType ExtTy,
                                EVT NewVT) const override;
 
-    const X86Subtarget* getSubtarget() const {
-      return Subtarget;
-    }
-
     /// Return true if the specified scalar FP type is computed in an SSE
     /// register, not on the X87 floating point stack.
     bool isScalarFPTypeInSSEReg(EVT VT) const {