From bdba3cd97da3b040d265d5a8edb0a09136dbd056 Mon Sep 17 00:00:00 2001
From: Matt Pharr <matt.pharr@intel.com>
Date: Fri, 27 Jan 2012 13:37:18 -0800
Subject: [PATCH] Bugfix: add per-lane offsets when accessing varying data
 through a pointer!

---
 expr.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/expr.cpp b/expr.cpp
index b04c8319..725a1edc 100644
--- a/expr.cpp
+++ b/expr.cpp
@@ -3065,8 +3065,10 @@ IndexExpr::GetLValue(FunctionEmitContext *ctx) const {
         if (baseValue == NULL || indexValue == NULL)
             return NULL;
         ctx->SetDebugPos(pos);
-        return ctx->GetElementPtrInst(baseValue, indexValue,
-                                      baseExprType, "ptr_offset");
+        llvm::Value *ptr = ctx->GetElementPtrInst(baseValue, indexValue,
+                                                  baseExprType, "ptr_offset");
+        ptr = lAddVaryingOffsetsIfNeeded(ctx, ptr, GetLValueType());
+        return ptr;
     }
 
     // Otherwise it's an array or vector