From 38483c5e48e5f75cbfe38b51c7e5435d9da66272 Mon Sep 17 00:00:00 2001
From: Serge Guelton <sguelton@quarkslab.com>
Date: Mon, 13 Nov 2017 21:40:57 +0000
Subject: [PATCH] Fix -Werror when compiling rL318083 (bis)

Statically assert the result and remove a runtime comparison, a direct consequence of the optimization introduced in rL318083.

llvm-svn: 318090
---
 include/llvm/IR/Value.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/llvm/IR/Value.h b/include/llvm/IR/Value.h
index f50f0172685..60a64c8ba8a 100644
--- a/include/llvm/IR/Value.h
+++ b/include/llvm/IR/Value.h
@@ -762,8 +762,8 @@ template <class Compare> void Value::sortUseList(Compare Cmp) {
 //
 template <> struct isa_impl<Constant, Value> {
   static inline bool doit(const Value &Val) {
-    return Val.getValueID() >= Value::ConstantFirstVal &&
-      Val.getValueID() <= Value::ConstantLastVal;
+    static_assert(Value::ConstantFirstVal == 0, "Val.getValueID() >= Value::ConstantFirstVal");
+    return Val.getValueID() <= Value::ConstantLastVal;
   }
 };