From 721c201bd55ffb73cb2ba8d39e0570fa38c44e15 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Wed, 15 Aug 2012 19:34:23 +0000
Subject: Vendor import of llvm trunk r161861:
http://llvm.org/svn/llvm-project/llvm/trunk@161861
---
include/llvm/GlobalValue.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include/llvm/GlobalValue.h')
diff --git a/include/llvm/GlobalValue.h b/include/llvm/GlobalValue.h
index 81a11a4..8b969f3 100644
--- a/include/llvm/GlobalValue.h
+++ b/include/llvm/GlobalValue.h
@@ -164,6 +164,12 @@ public:
return Linkage == CommonLinkage;
}
+ /// isDiscardableIfUnused - Whether the definition of this global may be
+ /// discarded if it is not used in its compilation unit.
+ static bool isDiscardableIfUnused(LinkageTypes Linkage) {
+ return isLinkOnceLinkage(Linkage) || isLocalLinkage(Linkage);
+ }
+
/// mayBeOverridden - Whether the definition of this global may be replaced
/// by something non-equivalent at link time. For example, if a function has
/// weak linkage then the code defining it may be replaced by different code.
@@ -221,6 +227,10 @@ public:
void setLinkage(LinkageTypes LT) { Linkage = LT; }
LinkageTypes getLinkage() const { return Linkage; }
+ bool isDiscardableIfUnused() const {
+ return isDiscardableIfUnused(Linkage);
+ }
+
bool mayBeOverridden() const { return mayBeOverridden(Linkage); }
bool isWeakForLinker() const { return isWeakForLinker(Linkage); }
--
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