From: Nate Begeman <natebegeman@mac.com>
Date: Tue, 19 Feb 2008 01:11:03 +0000 (+0000)
Subject: Allow ArraySubscriptExpr to be a base node for vector dereference.  This
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=60c9b1867fab9d57e6828aa8d36baea703a08ff2;p=clang

Allow ArraySubscriptExpr to be a base node for vector dereference.  This
allows you to do things like
typedef __attribute__(( ocu_vector_type(4))) float float4;
float4 *x;
float y = x[0][2];


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47295 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/Sema/SemaExpr.cpp b/Sema/SemaExpr.cpp
index 0d48ad7aa5..31cdc5947f 100644
--- a/Sema/SemaExpr.cpp
+++ b/Sema/SemaExpr.cpp
@@ -414,7 +414,7 @@ ActOnArraySubscriptExpr(ExprTy *Base, SourceLocation LLoc,
     IndexExpr = RHSExp;
     
     // Component access limited to variables (reject vec4.rg[1]).
-    if (!isa<DeclRefExpr>(BaseExpr)) 
+    if (!isa<DeclRefExpr>(BaseExpr) && !isa<ArraySubscriptExpr>(BaseExpr)) 
       return Diag(LLoc, diag::err_ocuvector_component_access, 
                   SourceRange(LLoc, RLoc));
     // FIXME: need to deal with const...