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raw | patch | inline | side by side (parent: c1072cf)
author | Adam Nemet <anemet@apple.com> | |
Tue, 5 Aug 2014 17:58:49 +0000 (17:58 +0000) | ||
committer | Adam Nemet <anemet@apple.com> | |
Tue, 5 Aug 2014 17:58:49 +0000 (17:58 +0000) |
A rebase somehow ate my comments. This restores them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214903 91177308-0d34-0410-b5e6-96231b3b80d8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214903 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp | patch | blob | history |
index c92fc8460bcc81bf13c38b55e1df94ce7db889c2..a3cd02f44b2d95485198e1f0813cd6a8e38fa7dd 100644 (file)
return true;
}
+/// \brief Return true if the mask specifies a shuffle of elements that is
+/// suitable for input to intralane (palignr) or interlane (valign) vector
+/// right-shift.
static bool isAlignrMask(ArrayRef<int> Mask, MVT VT, bool InterLane) {
unsigned NumElts = VT.getVectorNumElements();
unsigned NumLanes = InterLane ? 1: VT.getSizeInBits()/128;
return true;
}
-/// isPALIGNRMask - Return true if the node specifies a shuffle of elements that
-/// is suitable for input to PALIGNR.
+/// \brief Return true if the node specifies a shuffle of elements that is
+/// suitable for input to PALIGNR.
static bool isPALIGNRMask(ArrayRef<int> Mask, MVT VT,
const X86Subtarget *Subtarget) {
if ((VT.is128BitVector() && !Subtarget->hasSSSE3()) ||
return isAlignrMask(Mask, VT, false);
}
-/// isPALIGNRMask - Return true if the node specifies a shuffle of elements that
-/// is suitable for input to PALIGNR.
+/// \brief Return true if the node specifies a shuffle of elements that is
+/// suitable for input to VALIGN.
static bool isVALIGNMask(ArrayRef<int> Mask, MVT VT,
const X86Subtarget *Subtarget) {
// FIXME: Add AVX512VL.
return Mask;
}
-/// getShufflePALIGNRImmediate - Return the appropriate immediate to shuffle
-/// the specified VECTOR_SHUFFLE mask with the PALIGNR instruction.
+/// \brief Return the appropriate immediate to shuffle the specified
+/// VECTOR_SHUFFLE mask with the PALIGNR (if InterLane is false) or with
+/// VALIGN (if Interlane is true) instructions.
static unsigned getShuffleAlignrImmediate(ShuffleVectorSDNode *SVOp,
bool InterLane) {
MVT VT = SVOp->getSimpleValueType(0);
return (Val - i) * EltSize;
}
-/// getShufflePALIGNRImmediate - Return the appropriate immediate to shuffle
-/// the specified VECTOR_SHUFFLE mask with the PALIGNR instruction.
+/// \brief Return the appropriate immediate to shuffle the specified
+/// VECTOR_SHUFFLE mask with the PALIGNR instruction.
static unsigned getShufflePALIGNRImmediate(ShuffleVectorSDNode *SVOp) {
return getShuffleAlignrImmediate(SVOp, false);
}
+/// \brief Return the appropriate immediate to shuffle the specified
+/// VECTOR_SHUFFLE mask with the VALIGN instruction.
static unsigned getShuffleVALIGNImmediate(ShuffleVectorSDNode *SVOp) {
return getShuffleAlignrImmediate(SVOp, true);
}