if ((Imm & ~255U) == 0) return 0;
// Use CTZ to compute the rotate amount.
- unsigned TZ = CountTrailingZeros_32(Imm);
+ unsigned TZ = countTrailingZeros(Imm);
// Rotate amount must be even. Something like 0x200 must be rotated 8 bits,
// not 9.
// For values like 0xF000000F, we should ignore the low 6 bits, then
// retry the hunt.
if (Imm & 63U) {
- unsigned TZ2 = CountTrailingZeros_32(Imm & ~63U);
+ unsigned TZ2 = countTrailingZeros(Imm & ~63U);
unsigned RotAmt2 = TZ2 & ~1;
if ((rotr32(Imm, RotAmt2) & ~255U) == 0)
return (32-RotAmt2)&31; // HW rotates right, not left.
if ((Imm & ~255U) == 0) return 0;
// Use CTZ to compute the shift amount.
- return CountTrailingZeros_32(Imm);
+ return countTrailingZeros(Imm);
}
/// isThumbImmShiftedVal - Return true if the specified value can be obtained
if ((Imm & ~65535U) == 0) return 0;
// Use CTZ to compute the shift amount.
- return CountTrailingZeros_32(Imm);
+ return countTrailingZeros(Imm);
}
/// isThumbImm16ShiftedVal - Return true if the specified value can be
/// encoding is possible.
/// See ARM Reference Manual A6.3.2.
static inline int getT2SOImmValRotateVal(unsigned V) {
- unsigned RotAmt = CountLeadingZeros_32(V);
+ unsigned RotAmt = countLeadingZeros(V);
if (RotAmt >= 24)
return -1;
static inline unsigned getT2SOImmValRotate(unsigned V) {
if ((V & ~255U) == 0) return 0;
// Use CTZ to compute the rotate amount.
- unsigned RotAmt = CountTrailingZeros_32(V);
+ unsigned RotAmt = countTrailingZeros(V);
return (32 - RotAmt) & 31;
}