From 74d92c19247067189b2d62854cad16dae0487068 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 8 Apr 2011 21:37:21 +0000
Subject: Change -arm-trap-func= into a non-arm specific option. Now
 Intrinsic::trap is lowered into a call to the specified trap function at
 sdisel time.

llvm-svn: 129152
---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

(limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 24c325e..f751bb7 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4672,9 +4672,22 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
   case Intrinsic::flt_rounds:
     setValue(&I, DAG.getNode(ISD::FLT_ROUNDS_, dl, MVT::i32));
     return 0;
-  case Intrinsic::trap:
-    DAG.setRoot(DAG.getNode(ISD::TRAP, dl,MVT::Other, getRoot()));
+  case Intrinsic::trap: {
+    StringRef TrapFuncName = getTrapFunctionName();
+    if (TrapFuncName.empty()) {
+      DAG.setRoot(DAG.getNode(ISD::TRAP, dl,MVT::Other, getRoot()));
+      return 0;
+    }
+    TargetLowering::ArgListTy Args;
+    std::pair<SDValue, SDValue> Result =
+      TLI.LowerCallTo(getRoot(), I.getType(),
+                 false, false, false, false, 0, CallingConv::C,
+                 /*isTailCall=*/false, /*isReturnValueUsed=*/true,
+                 DAG.getExternalSymbol(TrapFuncName.data(), TLI.getPointerTy()),
+                 Args, DAG, getCurDebugLoc());
+    DAG.setRoot(Result.second);
     return 0;
+  }
   case Intrinsic::uadd_with_overflow:
     return implVisitAluOverflow(I, ISD::UADDO);
   case Intrinsic::sadd_with_overflow:
-- 
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