From c14659c6754f4d91a3bec3cbb48c4e67b7421d13 Mon Sep 17 00:00:00 2001
From: Matt Pharr <mpharr@google.com>
Date: Tue, 23 Jul 2013 17:02:49 -0700
Subject: [PATCH] Fix bug in lGetConstantInt() in parse.yy.

Previously, we weren't handling signed/unsigned constant types correctly.
---
 parse.yy | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/parse.yy b/parse.yy
index 6ed2a43d..4b315776 100644
--- a/parse.yy
+++ b/parse.yy
@@ -2278,7 +2278,11 @@ lGetConstantInt(Expr *expr, int *value, SourcePos pos, const char *usage) {
             Error(pos, "%s must be representable with a 32-bit integer.", usage);
             return false;
         }
-        *value = (int)ci->getZExtValue();
+        const Type *type = expr->GetType();
+        if (type->IsUnsignedType())
+            *value = (int)ci->getZExtValue();
+        else
+            *value = (int)ci->getSExtValue();
         return true;
     }
 }