35 static unsigned getMaskElt(unsigned Mask, unsigned Elt) {  in getMaskElt()  argument
36   return (Mask >> ((3-Elt)*4)) & 0xF;  in getMaskElt()
39 static unsigned setMaskElt(unsigned Mask, unsigned Elt, unsigned NewVal) {  in setMaskElt()  argument
41   return (Mask & ~(0xF << FieldShift)) | (NewVal << FieldShift);  in setMaskElt()
45 static bool isValidMask(unsigned short Mask) {  in isValidMask()  argument
46   unsigned short UndefBits = Mask & 0x8888;  in isValidMask()
47   return (Mask & ((UndefBits >> 1)|(UndefBits>>2)|(UndefBits>>3))) == 0;  in isValidMask()
52 static bool hasUndefElements(unsigned short Mask) {  in hasUndefElements()  argument
53   return (Mask & 0x8888) != 0;  in hasUndefElements()
58 static bool isOnlyLHSMask(unsigned short Mask) {  in isOnlyLHSMask()  argument
59   return (Mask & 0x4444) == 0;  in isOnlyLHSMask()
66 static unsigned short getLHSOnlyMask(unsigned short Mask) {
67   return Mask & 0xBBBB;  // Keep only LHS and Undefs.
73 static unsigned getCompressedMask(unsigned short Mask) {  in getCompressedMask()  argument
74   return getMaskElt(Mask, 0)*9*9*9 + getMaskElt(Mask, 1)*9*9 +  in getCompressedMask()
75          getMaskElt(Mask, 2)*9     + getMaskElt(Mask, 3);  in getCompressedMask()