From 293b57701b7bcdd88e44ce8f671511ba35cac13e Mon Sep 17 00:00:00 2001
From: Brian Koropoff <bkoropoff@gmail.com>
Date: Mon, 29 Sep 2014 19:58:32 -0700
Subject: [PATCH] Add missing case for pointer -> int when translating constant
 cast expressions

Closes issue #17458
---
 src/librustc/middle/trans/consts.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/librustc/middle/trans/consts.rs b/src/librustc/middle/trans/consts.rs
index d39fe4a1e700..456ff69e0ec0 100644
--- a/src/librustc/middle/trans/consts.rs
+++ b/src/librustc/middle/trans/consts.rs
@@ -547,6 +547,9 @@ fn const_expr_unadjusted(cx: &CrateContext, e: &ast::Expr,
               (expr::cast_integral, expr::cast_pointer) => {
                 llvm::LLVMConstIntToPtr(v, llty.to_ref())
               }
+              (expr::cast_pointer, expr::cast_integral) => {
+                llvm::LLVMConstPtrToInt(v, llty.to_ref())
+              }
               _ => {
                 cx.sess().impossible_case(e.span,
                                           "bad combination of types for cast")