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-rw-r--r--include/llvm/IR/IntrinsicsPowerPC.td14
-rw-r--r--lib/Target/PowerPC/PPCISelLowering.cpp49
-rw-r--r--lib/Target/PowerPC/PPCISelLowering.h5
-rw-r--r--lib/Target/PowerPC/PPCInstrAltivec.td35
-rw-r--r--lib/Target/PowerPC/PPCVSXSwapRemoval.cpp6
-rw-r--r--test/CodeGen/PowerPC/vec_shuffle_p8vector.ll43
-rw-r--r--test/CodeGen/PowerPC/vec_shuffle_p8vector_le.ll43
-rw-r--r--test/MC/Disassembler/PowerPC/ppc64-encoding-p8vector.txt19
-rw-r--r--test/MC/PowerPC/ppc64-encoding-p8vector.s26
9 files changed, 238 insertions, 2 deletions
diff --git a/include/llvm/IR/IntrinsicsPowerPC.td b/include/llvm/IR/IntrinsicsPowerPC.td
index 947a7636a0e..29da61e0e09 100644
--- a/include/llvm/IR/IntrinsicsPowerPC.td
+++ b/include/llvm/IR/IntrinsicsPowerPC.td
@@ -480,6 +480,12 @@ let TargetPrefix = "ppc" in { // All PPC intrinsics start with "llvm.ppc.".
def int_ppc_altivec_vpkswus : GCCBuiltin<"__builtin_altivec_vpkswus">,
Intrinsic<[llvm_v8i16_ty], [llvm_v4i32_ty, llvm_v4i32_ty],
[IntrNoMem]>;
+ def int_ppc_altivec_vpksdss : GCCBuiltin<"__builtin_altivec_vpksdss">,
+ Intrinsic<[llvm_v4i32_ty], [llvm_v2i64_ty, llvm_v2i64_ty],
+ [IntrNoMem]>;
+ def int_ppc_altivec_vpksdus : GCCBuiltin<"__builtin_altivec_vpksdus">,
+ Intrinsic<[llvm_v4i32_ty], [llvm_v2i64_ty, llvm_v2i64_ty],
+ [IntrNoMem]>;
// vpkuhum is lowered to a shuffle.
def int_ppc_altivec_vpkuhus : GCCBuiltin<"__builtin_altivec_vpkuhus">,
Intrinsic<[llvm_v16i8_ty], [llvm_v8i16_ty, llvm_v8i16_ty],
@@ -488,6 +494,10 @@ let TargetPrefix = "ppc" in { // All PPC intrinsics start with "llvm.ppc.".
def int_ppc_altivec_vpkuwus : GCCBuiltin<"__builtin_altivec_vpkuwus">,
Intrinsic<[llvm_v8i16_ty], [llvm_v4i32_ty, llvm_v4i32_ty],
[IntrNoMem]>;
+ // vpkudum is lowered to a shuffle.
+ def int_ppc_altivec_vpkudus : GCCBuiltin<"__builtin_altivec_vpkudus">,
+ Intrinsic<[llvm_v4i32_ty], [llvm_v2i64_ty, llvm_v2i64_ty],
+ [IntrNoMem]>;
// Unpacks.
def int_ppc_altivec_vupkhpx : GCCBuiltin<"__builtin_altivec_vupkhpx">,
@@ -496,12 +506,16 @@ let TargetPrefix = "ppc" in { // All PPC intrinsics start with "llvm.ppc.".
Intrinsic<[llvm_v8i16_ty], [llvm_v16i8_ty], [IntrNoMem]>;
def int_ppc_altivec_vupkhsh : GCCBuiltin<"__builtin_altivec_vupkhsh">,
Intrinsic<[llvm_v4i32_ty], [llvm_v8i16_ty], [IntrNoMem]>;
+ def int_ppc_altivec_vupkhsw : GCCBuiltin<"__builtin_altivec_vupkhsw">,
+ Intrinsic<[llvm_v2i64_ty], [llvm_v4i32_ty], [IntrNoMem]>;
def int_ppc_altivec_vupklpx : GCCBuiltin<"__builtin_altivec_vupklpx">,
Intrinsic<[llvm_v4i32_ty], [llvm_v8i16_ty], [IntrNoMem]>;
def int_ppc_altivec_vupklsb : GCCBuiltin<"__builtin_altivec_vupklsb">,
Intrinsic<[llvm_v8i16_ty], [llvm_v16i8_ty], [IntrNoMem]>;
def int_ppc_altivec_vupklsh : GCCBuiltin<"__builtin_altivec_vupklsh">,
Intrinsic<[llvm_v4i32_ty], [llvm_v8i16_ty], [IntrNoMem]>;
+ def int_ppc_altivec_vupklsw : GCCBuiltin<"__builtin_altivec_vupklsw">,
+ Intrinsic<[llvm_v2i64_ty], [llvm_v4i32_ty], [IntrNoMem]>;
// FP <-> integer conversion.
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 3ff77fc0161..5fc22e4af14 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -1101,7 +1101,7 @@ static bool isConstantOrUndef(int Op, int Val) {
/// VPKUHUM instruction.
/// The ShuffleKind distinguishes between big-endian operations with
/// two different inputs (0), either-endian operations with two identical
-/// inputs (1), and little-endian operantion with two different inputs (2).
+/// inputs (1), and little-endian operations with two different inputs (2).
/// For the latter, the input operands are swapped (see PPCInstrAltivec.td).
bool PPC::isVPKUHUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
SelectionDAG &DAG) {
@@ -1132,7 +1132,7 @@ bool PPC::isVPKUHUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
/// VPKUWUM instruction.
/// The ShuffleKind distinguishes between big-endian operations with
/// two different inputs (0), either-endian operations with two identical
-/// inputs (1), and little-endian operantion with two different inputs (2).
+/// inputs (1), and little-endian operations with two different inputs (2).
/// For the latter, the input operands are swapped (see PPCInstrAltivec.td).
bool PPC::isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
SelectionDAG &DAG) {
@@ -1163,6 +1163,49 @@ bool PPC::isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
return true;
}
+/// isVPKUDUMShuffleMask - Return true if this is the shuffle mask for a
+/// VPKUDUM instruction.
+/// The ShuffleKind distinguishes between big-endian operations with
+/// two different inputs (0), either-endian operations with two identical
+/// inputs (1), and little-endian operations with two different inputs (2).
+/// For the latter, the input operands are swapped (see PPCInstrAltivec.td).
+bool PPC::isVPKUDUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
+ SelectionDAG &DAG) {
+ bool IsLE = DAG.getTarget().getDataLayout()->isLittleEndian();
+ if (ShuffleKind == 0) {
+ if (IsLE)
+ return false;
+ for (unsigned i = 0; i != 16; i += 4)
+ if (!isConstantOrUndef(N->getMaskElt(i ), i*2+4) ||
+ !isConstantOrUndef(N->getMaskElt(i+1), i*2+5) ||
+ !isConstantOrUndef(N->getMaskElt(i+2), i*2+6) ||
+ !isConstantOrUndef(N->getMaskElt(i+3), i*2+7))
+ return false;
+ } else if (ShuffleKind == 2) {
+ if (!IsLE)
+ return false;
+ for (unsigned i = 0; i != 16; i += 4)
+ if (!isConstantOrUndef(N->getMaskElt(i ), i*2) ||
+ !isConstantOrUndef(N->getMaskElt(i+1), i*2+1) ||
+ !isConstantOrUndef(N->getMaskElt(i+2), i*2+2) ||
+ !isConstantOrUndef(N->getMaskElt(i+3), i*2+3))
+ return false;
+ } else if (ShuffleKind == 1) {
+ unsigned j = IsLE ? 0 : 4;
+ for (unsigned i = 0; i != 8; i += 4)
+ if (!isConstantOrUndef(N->getMaskElt(i ), i*2+j) ||
+ !isConstantOrUndef(N->getMaskElt(i+1), i*2+j+1) ||
+ !isConstantOrUndef(N->getMaskElt(i+2), i*2+j+2) ||
+ !isConstantOrUndef(N->getMaskElt(i+3), i*2+j+3) ||
+ !isConstantOrUndef(N->getMaskElt(i+8), i*2+j) ||
+ !isConstantOrUndef(N->getMaskElt(i+9), i*2+j+1) ||
+ !isConstantOrUndef(N->getMaskElt(i+10), i*2+j+2) ||
+ !isConstantOrUndef(N->getMaskElt(i+11), i*2+j+3))
+ return false;
+ }
+ return true;
+}
+
/// isVMerge - Common function, used to match vmrg* shuffles.
///
static bool isVMerge(ShuffleVectorSDNode *N, unsigned UnitSize,
@@ -6993,6 +7036,7 @@ SDValue PPCTargetLowering::LowerVECTOR_SHUFFLE(SDValue Op,
PPC::isSplatShuffleMask(SVOp, 4) ||
PPC::isVPKUWUMShuffleMask(SVOp, 1, DAG) ||
PPC::isVPKUHUMShuffleMask(SVOp, 1, DAG) ||
+ PPC::isVPKUDUMShuffleMask(SVOp, 1, DAG) ||
PPC::isVSLDOIShuffleMask(SVOp, 1, DAG) != -1 ||
PPC::isVMRGLShuffleMask(SVOp, 1, 1, DAG) ||
PPC::isVMRGLShuffleMask(SVOp, 2, 1, DAG) ||
@@ -7010,6 +7054,7 @@ SDValue PPCTargetLowering::LowerVECTOR_SHUFFLE(SDValue Op,
unsigned int ShuffleKind = isLittleEndian ? 2 : 0;
if (PPC::isVPKUWUMShuffleMask(SVOp, ShuffleKind, DAG) ||
PPC::isVPKUHUMShuffleMask(SVOp, ShuffleKind, DAG) ||
+ PPC::isVPKUDUMShuffleMask(SVOp, ShuffleKind, DAG) ||
PPC::isVSLDOIShuffleMask(SVOp, ShuffleKind, DAG) != -1 ||
PPC::isVMRGLShuffleMask(SVOp, 1, ShuffleKind, DAG) ||
PPC::isVMRGLShuffleMask(SVOp, 2, ShuffleKind, DAG) ||
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index 33cbb6e5196..81589c8307f 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -357,6 +357,11 @@ namespace llvm {
bool isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
SelectionDAG &DAG);
+ /// isVPKUDUMShuffleMask - Return true if this is the shuffle mask for a
+ /// VPKUDUM instruction.
+ bool isVPKUDUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind,
+ SelectionDAG &DAG);
+
/// isVMRGLShuffleMask - Return true if this is a shuffle mask suitable for
/// a VRGL* instruction with the specified unit size (1,2 or 4 bytes).
bool isVMRGLShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
diff --git a/lib/Target/PowerPC/PPCInstrAltivec.td b/lib/Target/PowerPC/PPCInstrAltivec.td
index d50b197415b..e77f75aa6c1 100644
--- a/lib/Target/PowerPC/PPCInstrAltivec.td
+++ b/lib/Target/PowerPC/PPCInstrAltivec.td
@@ -43,6 +43,10 @@ def vpkuwum_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
(vector_shuffle node:$lhs, node:$rhs), [{
return PPC::isVPKUWUMShuffleMask(cast<ShuffleVectorSDNode>(N), 0, *CurDAG);
}]>;
+def vpkudum_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
+ (vector_shuffle node:$lhs, node:$rhs), [{
+ return PPC::isVPKUDUMShuffleMask(cast<ShuffleVectorSDNode>(N), 0, *CurDAG);
+}]>;
def vpkuhum_unary_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
(vector_shuffle node:$lhs, node:$rhs), [{
return PPC::isVPKUHUMShuffleMask(cast<ShuffleVectorSDNode>(N), 1, *CurDAG);
@@ -51,6 +55,10 @@ def vpkuwum_unary_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
(vector_shuffle node:$lhs, node:$rhs), [{
return PPC::isVPKUWUMShuffleMask(cast<ShuffleVectorSDNode>(N), 1, *CurDAG);
}]>;
+def vpkudum_unary_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
+ (vector_shuffle node:$lhs, node:$rhs), [{
+ return PPC::isVPKUDUMShuffleMask(cast<ShuffleVectorSDNode>(N), 1, *CurDAG);
+}]>;
// These fragments are provided for little-endian, where the inputs must be
// swapped for correct semantics.
@@ -62,6 +70,10 @@ def vpkuwum_swapped_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
(vector_shuffle node:$lhs, node:$rhs), [{
return PPC::isVPKUWUMShuffleMask(cast<ShuffleVectorSDNode>(N), 2, *CurDAG);
}]>;
+def vpkudum_swapped_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
+ (vector_shuffle node:$lhs, node:$rhs), [{
+ return PPC::isVPKUDUMShuffleMask(cast<ShuffleVectorSDNode>(N), 2, *CurDAG);
+}]>;
def vmrglb_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
(vector_shuffle (v16i8 node:$lhs), node:$rhs), [{
@@ -1091,6 +1103,29 @@ def VPMSUMD : VX1_Int_Ty<1224, "vpmsumd",
def VPERMXOR : VA1a_Int_Ty<45, "vpermxor",
int_ppc_altivec_crypto_vpermxor, v16i8>;
+// Vector doubleword integer pack and unpack.
+def VPKSDSS : VX1_Int_Ty2<1486, "vpksdss", int_ppc_altivec_vpksdss,
+ v4i32, v2i64>;
+def VPKSDUS : VX1_Int_Ty2<1358, "vpksdus", int_ppc_altivec_vpksdus,
+ v4i32, v2i64>;
+def VPKUDUM : VXForm_1<1102, (outs vrrc:$vD), (ins vrrc:$vA, vrrc:$vB),
+ "vpkudum $vD, $vA, $vB", IIC_VecFP,
+ [(set v16i8:$vD,
+ (vpkudum_shuffle v16i8:$vA, v16i8:$vB))]>;
+def VPKUDUS : VX1_Int_Ty2<1230, "vpkudus", int_ppc_altivec_vpkudus,
+ v4i32, v2i64>;
+def VUPKHSW : VX2_Int_Ty2<1614, "vupkhsw", int_ppc_altivec_vupkhsw,
+ v2i64, v4i32>;
+def VUPKLSW : VX2_Int_Ty2<1742, "vupklsw", int_ppc_altivec_vupklsw,
+ v2i64, v4i32>;
+
+// Shuffle patterns for unary and swapped (LE) vector pack modulo.
+def:Pat<(vpkudum_unary_shuffle v16i8:$vA, undef),
+ (VPKUDUM $vA, $vA)>;
+def:Pat<(vpkudum_swapped_shuffle v16i8:$vA, v16i8:$vB),
+ (VPKUDUM $vB, $vA)>;
+
+
} // end HasP8Altivec
// Crypto instructions (from builtins)
diff --git a/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp b/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
index 6aa25ff6f8e..e238669145a 100644
--- a/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
+++ b/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
@@ -382,8 +382,12 @@ bool PPCVSXSwapRemoval::gatherVectorInstructions() {
case PPC::VPKPX:
case PPC::VPKSHSS:
case PPC::VPKSHUS:
+ case PPC::VPKSDSS:
+ case PPC::VPKSDUS:
case PPC::VPKSWSS:
case PPC::VPKSWUS:
+ case PPC::VPKUDUM:
+ case PPC::VPKUDUS:
case PPC::VPKUHUM:
case PPC::VPKUHUS:
case PPC::VPKUWUM:
@@ -412,9 +416,11 @@ bool PPCVSXSwapRemoval::gatherVectorInstructions() {
case PPC::VUPKHPX:
case PPC::VUPKHSB:
case PPC::VUPKHSH:
+ case PPC::VUPKHSW:
case PPC::VUPKLPX:
case PPC::VUPKLSB:
case PPC::VUPKLSH:
+ case PPC::VUPKLSW:
case PPC::XXMRGHW:
case PPC::XXMRGLW:
case PPC::XXSPLTW:
diff --git a/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll b/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll
new file mode 100644
index 00000000000..d81aa729f8e
--- /dev/null
+++ b/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll
@@ -0,0 +1,43 @@
+; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu -mattr=+power8-vector < %s | FileCheck %s
+
+define void @VPKUDUM_unary(<2 x i64>* %A) {
+entry:
+ %tmp = load <2 x i64>, <2 x i64>* %A
+ %tmp2 = bitcast <2 x i64> %tmp to <4 x i32>
+ %tmp3 = extractelement <4 x i32> %tmp2, i32 1
+ %tmp4 = extractelement <4 x i32> %tmp2, i32 3
+ %tmp5 = insertelement <4 x i32> undef, i32 %tmp3, i32 0
+ %tmp6 = insertelement <4 x i32> %tmp5, i32 %tmp4, i32 1
+ %tmp7 = insertelement <4 x i32> %tmp6, i32 %tmp3, i32 2
+ %tmp8 = insertelement <4 x i32> %tmp7, i32 %tmp4, i32 3
+ %tmp9 = bitcast <4 x i32> %tmp8 to <2 x i64>
+ store <2 x i64> %tmp9, <2 x i64>* %A
+ ret void
+}
+
+; CHECK-LABEL: @VPKUDUM_unary
+; CHECK-NOT: vperm
+; CHECK: vpkudum
+
+define void @VPKUDUM(<2 x i64>* %A, <2 x i64>* %B) {
+entry:
+ %tmp = load <2 x i64>, <2 x i64>* %A
+ %tmp2 = bitcast <2 x i64> %tmp to <4 x i32>
+ %tmp3 = load <2 x i64>, <2 x i64>* %B
+ %tmp4 = bitcast <2 x i64> %tmp3 to <4 x i32>
+ %tmp5 = extractelement <4 x i32> %tmp2, i32 1
+ %tmp6 = extractelement <4 x i32> %tmp2, i32 3
+ %tmp7 = extractelement <4 x i32> %tmp4, i32 1
+ %tmp8 = extractelement <4 x i32> %tmp4, i32 3
+ %tmp9 = insertelement <4 x i32> undef, i32 %tmp5, i32 0
+ %tmp10 = insertelement <4 x i32> %tmp9, i32 %tmp6, i32 1
+ %tmp11 = insertelement <4 x i32> %tmp10, i32 %tmp7, i32 2
+ %tmp12 = insertelement <4 x i32> %tmp11, i32 %tmp8, i32 3
+ %tmp13 = bitcast <4 x i32> %tmp12 to <2 x i64>
+ store <2 x i64> %tmp13, <2 x i64>* %A
+ ret void
+}
+
+; CHECK-LABEL: @VPKUDUM
+; CHECK-NOT: vperm
+; CHECK: vpkudum
diff --git a/test/CodeGen/PowerPC/vec_shuffle_p8vector_le.ll b/test/CodeGen/PowerPC/vec_shuffle_p8vector_le.ll
new file mode 100644
index 00000000000..709388675f6
--- /dev/null
+++ b/test/CodeGen/PowerPC/vec_shuffle_p8vector_le.ll
@@ -0,0 +1,43 @@
+; RUN: llc -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -mattr=+power8-vector < %s | FileCheck %s
+
+define void @VPKUDUM_unary(<2 x i64>* %A) {
+entry:
+ %tmp = load <2 x i64>, <2 x i64>* %A
+ %tmp2 = bitcast <2 x i64> %tmp to <4 x i32>
+ %tmp3 = extractelement <4 x i32> %tmp2, i32 0
+ %tmp4 = extractelement <4 x i32> %tmp2, i32 2
+ %tmp5 = insertelement <4 x i32> undef, i32 %tmp3, i32 0
+ %tmp6 = insertelement <4 x i32> %tmp5, i32 %tmp4, i32 1
+ %tmp7 = insertelement <4 x i32> %tmp6, i32 %tmp3, i32 2
+ %tmp8 = insertelement <4 x i32> %tmp7, i32 %tmp4, i32 3
+ %tmp9 = bitcast <4 x i32> %tmp8 to <2 x i64>
+ store <2 x i64> %tmp9, <2 x i64>* %A
+ ret void
+}
+
+; CHECK-LABEL: @VPKUDUM_unary
+; CHECK-NOT: vperm
+; CHECK: vpkudum
+
+define void @VPKUDUM(<2 x i64>* %A, <2 x i64>* %B) {
+entry:
+ %tmp = load <2 x i64>, <2 x i64>* %A
+ %tmp2 = bitcast <2 x i64> %tmp to <4 x i32>
+ %tmp3 = load <2 x i64>, <2 x i64>* %B
+ %tmp4 = bitcast <2 x i64> %tmp3 to <4 x i32>
+ %tmp5 = extractelement <4 x i32> %tmp2, i32 0
+ %tmp6 = extractelement <4 x i32> %tmp2, i32 2
+ %tmp7 = extractelement <4 x i32> %tmp4, i32 0
+ %tmp8 = extractelement <4 x i32> %tmp4, i32 2
+ %tmp9 = insertelement <4 x i32> undef, i32 %tmp5, i32 0
+ %tmp10 = insertelement <4 x i32> %tmp9, i32 %tmp6, i32 1
+ %tmp11 = insertelement <4 x i32> %tmp10, i32 %tmp7, i32 2
+ %tmp12 = insertelement <4 x i32> %tmp11, i32 %tmp8, i32 3
+ %tmp13 = bitcast <4 x i32> %tmp12 to <2 x i64>
+ store <2 x i64> %tmp13, <2 x i64>* %A
+ ret void
+}
+
+; CHECK-LABEL: @VPKUDUM
+; CHECK-NOT: vperm
+; CHECK: vpkudum
diff --git a/test/MC/Disassembler/PowerPC/ppc64-encoding-p8vector.txt b/test/MC/Disassembler/PowerPC/ppc64-encoding-p8vector.txt
new file mode 100644
index 00000000000..eeea2db673f
--- /dev/null
+++ b/test/MC/Disassembler/PowerPC/ppc64-encoding-p8vector.txt
@@ -0,0 +1,19 @@
+# RUN: llvm-mc --disassemble %s -triple powerpc64-unknown-unknown -mcpu=pwr8 | FileCheck %s
+
+# CHECK: vpksdss 2, 3, 4
+0x10 0x43 0x25 0xce
+
+# CHECK: vpksdus 2, 3, 4
+0x10 0x43 0x25 0x4e
+
+# CHECK: vpkudus 2, 3, 4
+0x10 0x43 0x24 0xce
+
+# CHECK: vpkudum 2, 3, 4
+0x10 0x43 0x24 0x4e
+
+# CHECK: vupkhsw 2, 3
+0x10 0x40 0x1e 0x4e
+
+# CHECK: vupklsw 2, 3
+0x10 0x40 0x1e 0xce
diff --git a/test/MC/PowerPC/ppc64-encoding-p8vector.s b/test/MC/PowerPC/ppc64-encoding-p8vector.s
new file mode 100644
index 00000000000..657b7378fb4
--- /dev/null
+++ b/test/MC/PowerPC/ppc64-encoding-p8vector.s
@@ -0,0 +1,26 @@
+# RUN: llvm-mc -triple powerpc64-unknown-unknown --show-encoding %s | FileCheck -check-prefix=CHECK-BE %s
+# RUN: llvm-mc -triple powerpc64le-unknown-unknown --show-encoding %s | FileCheck -check-prefix=CHECK-LE %s
+
+# CHECK-BE: vpksdss 2, 3, 4 # encoding: [0x10,0x43,0x25,0xce]
+# CHECK-LE: vpksdss 2, 3, 4 # encoding: [0xce,0x25,0x43,0x10]
+ vpksdss 2, 3, 4
+
+# CHECK-BE: vpksdus 2, 3, 4 # encoding: [0x10,0x43,0x25,0x4e]
+# CHECK-LE: vpksdus 2, 3, 4 # encoding: [0x4e,0x25,0x43,0x10]
+ vpksdus 2, 3, 4
+
+# CHECK-BE: vpkudus 2, 3, 4 # encoding: [0x10,0x43,0x24,0xce]
+# CHECK-LE: vpkudus 2, 3, 4 # encoding: [0xce,0x24,0x43,0x10]
+ vpkudus 2, 3, 4
+
+# CHECK-BE: vpkudum 2, 3, 4 # encoding: [0x10,0x43,0x24,0x4e]
+# CHECK-LE: vpkudum 2, 3, 4 # encoding: [0x4e,0x24,0x43,0x10]
+ vpkudum 2, 3, 4
+
+# CHECK-BE: vupkhsw 2, 3 # encoding: [0x10,0x40,0x1e,0x4e]
+# CHECK-LE: vupkhsw 2, 3 # encoding: [0x4e,0x1e,0x40,0x10]
+ vupkhsw 2, 3
+
+# CHECK-BE: vupklsw 2, 3 # encoding: [0x10,0x40,0x1e,0xce]
+# CHECK-LE: vupklsw 2, 3 # encoding: [0xce,0x1e,0x40,0x10]
+ vupklsw 2, 3
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-04 17:04:33 +0000