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Simplify vector lane handling math a bit. No functional change intended.

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llvm-svn: 187783
This commit is contained in:
Craig Topper 2013-08-06 07:23:12 +00:00
parent 70290dd386
commit 4a0f26ca0c
1 changed files with 16 additions and 22 deletions
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38
lib/Target/X86/X86ISelLowering.cpp
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@ -3886,12 +3886,10 @@ static bool isUNPCKLMask(ArrayRef<int> Mask, EVT VT,
unsigned NumLanes = VT.getSizeInBits()/128;
unsigned NumLaneElts = NumElts/NumLanes;
for (unsigned l = 0; l != NumLanes; ++l) {
for (unsigned i = l*NumLaneElts, j = l*NumLaneElts;
i != (l+1)*NumLaneElts;
i += 2, ++j) {
int BitI = Mask[i];
int BitI1 = Mask[i+1];
for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
for (unsigned i = 0, j = l; i != NumLaneElts; i += 2, ++j) {
int BitI = Mask[l+i];
int BitI1 = Mask[l+i+1];
if (!isUndefOrEqual(BitI, j))
return false;
if (V2IsSplat) {
@ -3925,11 +3923,10 @@ static bool isUNPCKHMask(ArrayRef<int> Mask, EVT VT,
unsigned NumLanes = VT.getSizeInBits()/128;
unsigned NumLaneElts = NumElts/NumLanes;
for (unsigned l = 0; l != NumLanes; ++l) {
for (unsigned i = l*NumLaneElts, j = (l*NumLaneElts)+NumLaneElts/2;
i != (l+1)*NumLaneElts; i += 2, ++j) {
int BitI = Mask[i];
int BitI1 = Mask[i+1];
for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
for (unsigned i = 0, j = l+NumLaneElts/2; i != NumLaneElts; i += 2, ++j) {
int BitI = Mask[l+i];
int BitI1 = Mask[l+i+1];
if (!isUndefOrEqual(BitI, j))
return false;
if (V2IsSplat) {
@ -3970,12 +3967,10 @@ static bool isUNPCKL_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasInt256) {
unsigned NumLanes = VT.getSizeInBits()/128;
unsigned NumLaneElts = NumElts/NumLanes;
for (unsigned l = 0; l != NumLanes; ++l) {
for (unsigned i = l*NumLaneElts, j = l*NumLaneElts;
i != (l+1)*NumLaneElts;
i += 2, ++j) {
int BitI = Mask[i];
int BitI1 = Mask[i+1];
for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
for (unsigned i = 0, j = l; i != NumLaneElts; i += 2, ++j) {
int BitI = Mask[l+i];
int BitI1 = Mask[l+i+1];
if (!isUndefOrEqual(BitI, j))
return false;
@ -4005,11 +4000,10 @@ static bool isUNPCKH_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasInt256) {
unsigned NumLanes = VT.getSizeInBits()/128;
unsigned NumLaneElts = NumElts/NumLanes;
for (unsigned l = 0; l != NumLanes; ++l) {
for (unsigned i = l*NumLaneElts, j = (l*NumLaneElts)+NumLaneElts/2;
i != (l+1)*NumLaneElts; i += 2, ++j) {
int BitI = Mask[i];
int BitI1 = Mask[i+1];
for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
for (unsigned i = 0, j = l+NumLaneElts/2; i != NumLaneElts; i += 2, ++j) {
int BitI = Mask[l+i];
int BitI1 = Mask[l+i+1];
if (!isUndefOrEqual(BitI, j))
return false;
if (!isUndefOrEqual(BitI1, j))