From 0e33c688d519bffe80ef2b45a5c7107ebaf7d9cf Mon Sep 17 00:00:00 2001
From: Nuno Lopes <nunoplopes@sapo.pt>
Date: Wed, 19 Nov 2008 17:44:31 +0000
Subject: [PATCH] fix folding of '*doubleArray'

llvm-svn: 59647
---
 clang/lib/AST/ExprConstant.cpp | 3 +++
 clang/test/CodeGen/exprs.c     | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index ef8e2d4c1305..6b71d1100438 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -972,6 +972,9 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr *E) {
 }
 
 bool FloatExprEvaluator::VisitUnaryOperator(const UnaryOperator *E) {
+  if (E->getOpcode() == UnaryOperator::Deref)
+    return false;
+
   if (!EvaluateFloat(E->getSubExpr(), Result, Info))
     return false;
 
diff --git a/clang/test/CodeGen/exprs.c b/clang/test/CodeGen/exprs.c
index 275c988ab9bd..07a9158744bc 100644
--- a/clang/test/CodeGen/exprs.c
+++ b/clang/test/CodeGen/exprs.c
@@ -45,3 +45,10 @@ int ola() {
   if ((0, (int)a) & 2) { return 1; }
   return 2;
 }
+
+// this one shouldn't fold as well
+void eMaisUma() {
+	double t[1];
+	if (*t)
+		return;
+}