Replace the arm.neon.vmovls and vmovlu intrinsics with vector sign-extend and
zero-extend operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111614 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 9e9198b..034114c 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -125,12 +125,14 @@
setOperationAction(ISD::EXTRACT_SUBVECTOR, VT.getSimpleVT(), Expand);
setOperationAction(ISD::SELECT, VT.getSimpleVT(), Expand);
setOperationAction(ISD::SELECT_CC, VT.getSimpleVT(), Expand);
- setOperationAction(ISD::ZERO_EXTEND, VT.getSimpleVT(), Expand);
if (VT.isInteger()) {
setOperationAction(ISD::SHL, VT.getSimpleVT(), Custom);
setOperationAction(ISD::SRA, VT.getSimpleVT(), Custom);
setOperationAction(ISD::SRL, VT.getSimpleVT(), Custom);
+ setLoadExtAction(ISD::SEXTLOAD, VT.getSimpleVT(), Expand);
+ setLoadExtAction(ISD::ZEXTLOAD, VT.getSimpleVT(), Expand);
}
+ setLoadExtAction(ISD::EXTLOAD, VT.getSimpleVT(), Expand);
// Promote all bit-wise operations.
if (VT.isInteger() && VT != PromotedBitwiseVT) {
@@ -320,6 +322,8 @@
setOperationAction(ISD::FNEARBYINT, MVT::v2f64, Expand);
setOperationAction(ISD::FFLOOR, MVT::v2f64, Expand);
+ setTruncStoreAction(MVT::v2f64, MVT::v2f32, Expand);
+
// Neon does not support some operations on v1i64 and v2i64 types.
setOperationAction(ISD::MUL, MVT::v1i64, Expand);
setOperationAction(ISD::MUL, MVT::v2i64, Expand);
@@ -3786,7 +3790,7 @@
case ISD::VECTOR_SHUFFLE: return LowerVECTOR_SHUFFLE(Op, DAG);
case ISD::EXTRACT_VECTOR_ELT: return LowerEXTRACT_VECTOR_ELT(Op, DAG);
case ISD::CONCAT_VECTORS: return LowerCONCAT_VECTORS(Op, DAG);
- case ISD::FLT_ROUNDS_: return LowerFLT_ROUNDS_(Op, DAG);
+ case ISD::FLT_ROUNDS_: return LowerFLT_ROUNDS_(Op, DAG);
}
return SDValue();
}
diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td
index 595a2fc..9c01fcd 100644
--- a/lib/Target/ARM/ARMInstrNEON.td
+++ b/lib/Target/ARM/ARMInstrNEON.td
@@ -888,14 +888,14 @@
(ins QPR:$src), itin, OpcodeStr, Dt, "$dst, $src", "",
[(set DPR:$dst, (TyD (IntOp (TyQ QPR:$src))))]>;
-// Long 2-register intrinsics (currently only used for VMOVL).
-class N2VLInt<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18,
- bits<2> op17_16, bits<5> op11_7, bit op6, bit op4,
- InstrItinClass itin, string OpcodeStr, string Dt,
- ValueType TyQ, ValueType TyD, Intrinsic IntOp>
+// Long 2-register operations (currently only used for VMOVL).
+class N2VL<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18,
+ bits<2> op17_16, bits<5> op11_7, bit op6, bit op4,
+ InstrItinClass itin, string OpcodeStr, string Dt,
+ ValueType TyQ, ValueType TyD, SDNode OpNode>
: N2V<op24_23, op21_20, op19_18, op17_16, op11_7, op6, op4, (outs QPR:$dst),
(ins DPR:$src), itin, OpcodeStr, Dt, "$dst, $src", "",
- [(set QPR:$dst, (TyQ (IntOp (TyD DPR:$src))))]>;
+ [(set QPR:$dst, (TyQ (OpNode (TyD DPR:$src))))]>;
// 2-register shuffles (VTRN/VZIP/VUZP), both double- and quad-register.
class N2VDShuffle<bits<2> op19_18, bits<5> op11_7, string OpcodeStr, string Dt>
@@ -1508,14 +1508,14 @@
// Neon Lengthening 2-register vector intrinsic (currently specific to VMOVL).
// source operand element sizes of 16, 32 and 64 bits:
-multiclass N2VLInt_QHS<bits<2> op24_23, bits<5> op11_7, bit op6, bit op4,
- string OpcodeStr, string Dt, Intrinsic IntOp> {
- def v8i16 : N2VLInt<op24_23, 0b00, 0b10, 0b00, op11_7, op6, op4, IIC_VQUNAiD,
- OpcodeStr, !strconcat(Dt, "8"), v8i16, v8i8, IntOp>;
- def v4i32 : N2VLInt<op24_23, 0b01, 0b00, 0b00, op11_7, op6, op4, IIC_VQUNAiD,
- OpcodeStr, !strconcat(Dt, "16"), v4i32, v4i16, IntOp>;
- def v2i64 : N2VLInt<op24_23, 0b10, 0b00, 0b00, op11_7, op6, op4, IIC_VQUNAiD,
- OpcodeStr, !strconcat(Dt, "32"), v2i64, v2i32, IntOp>;
+multiclass N2VL_QHS<bits<2> op24_23, bits<5> op11_7, bit op6, bit op4,
+ string OpcodeStr, string Dt, SDNode OpNode> {
+ def v8i16 : N2VL<op24_23, 0b00, 0b10, 0b00, op11_7, op6, op4, IIC_VQUNAiD,
+ OpcodeStr, !strconcat(Dt, "8"), v8i16, v8i8, OpNode>;
+ def v4i32 : N2VL<op24_23, 0b01, 0b00, 0b00, op11_7, op6, op4, IIC_VQUNAiD,
+ OpcodeStr, !strconcat(Dt, "16"), v4i32, v4i16, OpNode>;
+ def v2i64 : N2VL<op24_23, 0b10, 0b00, 0b00, op11_7, op6, op4, IIC_VQUNAiD,
+ OpcodeStr, !strconcat(Dt, "32"), v2i64, v2i32, OpNode>;
}
@@ -3123,10 +3123,8 @@
defm VQMOVNsu : N2VNInt_HSD<0b11,0b11,0b10,0b00100,1,0, IIC_VQUNAiD,
"vqmovun", "s", int_arm_neon_vqmovnsu>;
// VMOVL : Vector Lengthening Move
-defm VMOVLs : N2VLInt_QHS<0b01,0b10100,0,1, "vmovl", "s",
- int_arm_neon_vmovls>;
-defm VMOVLu : N2VLInt_QHS<0b11,0b10100,0,1, "vmovl", "u",
- int_arm_neon_vmovlu>;
+defm VMOVLs : N2VL_QHS<0b01,0b10100,0,1, "vmovl", "s", sext>;
+defm VMOVLu : N2VL_QHS<0b11,0b10100,0,1, "vmovl", "u", zext>;
// Vector Conversions.
diff --git a/lib/VMCore/AutoUpgrade.cpp b/lib/VMCore/AutoUpgrade.cpp
index 4f4daeb..f76d0d2 100644
--- a/lib/VMCore/AutoUpgrade.cpp
+++ b/lib/VMCore/AutoUpgrade.cpp
@@ -78,6 +78,13 @@
NewFn = F;
return true;
}
+ } else if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
+ if (Name.compare(14, 7, "vmovls.", 7) == 0 ||
+ Name.compare(14, 7, "vmovlu.", 7) == 0) {
+ // Calls to these are transformed into IR without intrinsics.
+ NewFn = 0;
+ return true;
+ }
}
break;
case 'b':
@@ -320,6 +327,28 @@
assert(F && "CallInst has no function associated with it.");
if (!NewFn) {
+ // Get the Function's name.
+ const std::string& Name = F->getName();
+
+ // Upgrade ARM NEON intrinsics.
+ if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
+ Instruction *NewI;
+ if (Name.compare(14, 7, "vmovls.", 7) == 0) {
+ NewI = new SExtInst(CI->getArgOperand(0), CI->getType(),
+ "upgraded." + CI->getName(), CI);
+ } else if (Name.compare(14, 7, "vmovlu.", 7) == 0) {
+ NewI = new ZExtInst(CI->getArgOperand(0), CI->getType(),
+ "upgraded." + CI->getName(), CI);
+ } else {
+ llvm_unreachable("Unknown arm.neon function for CallInst upgrade.");
+ }
+ // Replace any uses of the old CallInst.
+ if (!CI->use_empty())
+ CI->replaceAllUsesWith(NewI);
+ CI->eraseFromParent();
+ return;
+ }
+
bool isLoadH = false, isLoadL = false, isMovL = false;
bool isMovSD = false, isShufPD = false;
bool isUnpckhPD = false, isUnpcklPD = false;