Refactor to expose RTLIB calls to targets.

fp128 is almost but not quite completely illegal as a type on AArch64. As a
result it needs to have a register class (for argument passing mainly), but all
operations need to be lowered to runtime calls. Currently there's no way for
targets to do this (without duplicating code), as the relevant functions are
hidden in SelectionDAG. This patch changes that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171971 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 10 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
index 5e33ef1db3..18748f5d17 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -1767,7 +1767,8 @@ void DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo,
   SDValue Op = N->getOperand(0);
   RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT);
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!");
-  SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, &Op, 1, true/*irrelevant*/, dl),
+               Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo,
@@ -1777,7 +1778,8 @@ void DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo,
   SDValue Op = N->getOperand(0);
   RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT);
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!");
-  SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, &Op, 1, false/*irrelevant*/, dl),
+               Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N,
@@ -1992,7 +1994,8 @@ void DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N,
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!");
 
   SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
-  SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, true/*irrelevant*/, dl),
+               Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node,
@@ -2054,7 +2057,7 @@ void DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N,
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!");
 
   SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
-  SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, true, dl), Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N,
@@ -2138,7 +2141,7 @@ void DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N,
 
   if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) {
     SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
-    SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi);
+    SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, isSigned, dl), Lo, Hi);
     return;
   }
 
@@ -2221,7 +2224,7 @@ void DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N,
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!");
 
   SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
-  SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, true, dl), Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N,
@@ -2361,7 +2364,7 @@ void DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N,
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!");
 
   SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
-  SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, false, dl), Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N,
@@ -2381,7 +2384,7 @@ void DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N,
   assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!");
 
   SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
-  SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi);
+  SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, false, dl), Lo, Hi);
 }
 
 void DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N,
@@ -2668,7 +2671,7 @@ SDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) {
   RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT);
   assert(LC != RTLIB::UNKNOWN_LIBCALL &&
          "Don't know how to expand this SINT_TO_FP!");
-  return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc());
+  return TLI.makeLibCall(DAG, LC, DstVT, &Op, 1, true, N->getDebugLoc());
 }
 
 SDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) {
@@ -2846,7 +2849,7 @@ SDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) {
   RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT);
   assert(LC != RTLIB::UNKNOWN_LIBCALL &&
          "Don't know how to expand this UINT_TO_FP!");
-  return MakeLibCall(LC, DstVT, &Op, 1, true, dl);
+  return TLI.makeLibCall(DAG, LC, DstVT, &Op, 1, true, dl);
 }
 
 SDValue DAGTypeLegalizer::ExpandIntOp_ATOMIC_STORE(SDNode *N) {