From 1d7e818a386610da70d56809ea67eb81e0f9c84b Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 27 Apr 2011 20:44:28 +0000
Subject: Teach BasicAA about arm.neon.vld1 and vst1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130327 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/BasicAliasAnalysis.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'lib/Analysis/BasicAliasAnalysis.cpp')

diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index be8ef96a87..f1bb8a38f0 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -779,6 +779,26 @@ BasicAliasAnalysis::getModRefInfo(ImmutableCallSite CS,
         return NoModRef;
       break;
     }
+    case Intrinsic::arm_neon_vld1: {
+      // LLVM's vld1 and vst1 intrinsics currently only support a single
+      // vector register.
+      uint64_t Size =
+        TD ? TD->getTypeStoreSize(II->getType()) : UnknownSize;
+      if (isNoAlias(Location(II->getArgOperand(0), Size,
+                             II->getMetadata(LLVMContext::MD_tbaa)),
+                    Loc))
+        return NoModRef;
+      break;
+    }
+    case Intrinsic::arm_neon_vst1: {
+      uint64_t Size =
+        TD ? TD->getTypeStoreSize(II->getArgOperand(1)->getType()) : UnknownSize;
+      if (isNoAlias(Location(II->getArgOperand(0), Size,
+                             II->getMetadata(LLVMContext::MD_tbaa)),
+                    Loc))
+        return NoModRef;
+      break;
+    }
     }
 
   // The AliasAnalysis base class has some smarts, lets use them.
-- 
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