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/IntrinsicLowering.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'llvm/lib/CodeGen/IntrinsicLowering.cpp')

diff --git a/llvm/lib/CodeGen/IntrinsicLowering.cpp b/llvm/lib/CodeGen/IntrinsicLowering.cpp
index 07f0ccf52f8..d894f664dcb 100644
--- a/llvm/lib/CodeGen/IntrinsicLowering.cpp
+++ b/llvm/lib/CodeGen/IntrinsicLowering.cpp
@@ -453,6 +453,12 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
     CI->replaceAllUsesWith(ConstantInt::get(CI->getType(), 1));
     break;
 
+  case Intrinsic::annotation:
+  case Intrinsic::ptr_annotation:
+    // Just drop the annotation, but forward the value
+    CI->replaceAllUsesWith(CI->getOperand(0));
+    break;
+
   case Intrinsic::var_annotation:
     break;   // Strip out annotate intrinsic
     
-- 
cgit v1.2.3