From c192b3dcffd5e672a2b2e1730e2440febb4fb192 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 5 Jul 2015 14:23:59 +0000
Subject: Vendor import of clang trunk r241361:
 https://llvm.org/svn/llvm-project/cfe/trunk@241361

---
 lib/CodeGen/CGExpr.cpp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'lib/CodeGen/CGExpr.cpp')

diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 1a76afaf1158..175763c4e815 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -2403,8 +2403,7 @@ void CodeGenFunction::EmitTrapCheck(llvm::Value *Checked) {
     TrapBB = createBasicBlock("trap");
     Builder.CreateCondBr(Checked, Cont, TrapBB);
     EmitBlock(TrapBB);
-    llvm::Value *F = CGM.getIntrinsic(llvm::Intrinsic::trap);
-    llvm::CallInst *TrapCall = Builder.CreateCall(F, {});
+    llvm::CallInst *TrapCall = EmitTrapCall(llvm::Intrinsic::trap);
     TrapCall->setDoesNotReturn();
     TrapCall->setDoesNotThrow();
     Builder.CreateUnreachable();
@@ -2415,6 +2414,18 @@ void CodeGenFunction::EmitTrapCheck(llvm::Value *Checked) {
   EmitBlock(Cont);
 }
 
+llvm::CallInst *CodeGenFunction::EmitTrapCall(llvm::Intrinsic::ID IntrID) {
+  llvm::CallInst *TrapCall =
+      Builder.CreateCall(CGM.getIntrinsic(IntrID), {});
+
+  if (!CGM.getCodeGenOpts().TrapFuncName.empty())
+    TrapCall->addAttribute(llvm::AttributeSet::FunctionIndex,
+                           "trap-func-name",
+                           CGM.getCodeGenOpts().TrapFuncName);
+
+  return TrapCall;
+}
+
 /// isSimpleArrayDecayOperand - If the specified expr is a simple decay from an
 /// array to pointer, return the array subexpression.
 static const Expr *isSimpleArrayDecayOperand(const Expr *E) {
-- 
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