From fff1f5f5e2f2569bef475fbeb900c114c8d74b6c Mon Sep 17 00:00:00 2001
From: Justin Holewinski <jholewinski@nvidia.com>
Date: Tue, 21 May 2013 14:37:16 +0000
Subject: Drop @llvm.annotation and @llvm.ptr.annotation intrinsics during
 codegen.

The intrinsic calls are dropped, but the annotated value is propagated.

Fixes PR 15253

Original patch by Zeng Bin!

llvm-svn: 182387
---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(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 4c6d0287af3..c12cf52de2e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5037,6 +5037,11 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
     setValue(&I, Res);
     return 0;
   }
+  case Intrinsic::annotation:
+  case Intrinsic::ptr_annotation:
+    // Drop the intrinsic, but forward the value
+    setValue(&I, getValue(I.getOperand(0)));
+    return 0;
   case Intrinsic::var_annotation:
     // Discard annotate attributes
     return 0;
-- 
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