diff options
| -rw-r--r-- | llvm/include/llvm/IR/GlobalValue.h | 3 | ||||
| -rw-r--r-- | llvm/test/Transforms/GlobalOpt/available_externally_global_ctors.ll | 22 |
2 files changed, 24 insertions, 1 deletions
diff --git a/llvm/include/llvm/IR/GlobalValue.h b/llvm/include/llvm/IR/GlobalValue.h index 2f9172648a2..3461b9ee8b8 100644 --- a/llvm/include/llvm/IR/GlobalValue.h +++ b/llvm/include/llvm/IR/GlobalValue.h @@ -256,7 +256,8 @@ public: static bool isWeakForLinker(LinkageTypes Linkage) { return Linkage == WeakAnyLinkage || Linkage == WeakODRLinkage || Linkage == LinkOnceAnyLinkage || Linkage == LinkOnceODRLinkage || - Linkage == CommonLinkage || Linkage == ExternalWeakLinkage; + Linkage == CommonLinkage || Linkage == ExternalWeakLinkage || + Linkage == AvailableExternallyLinkage; } bool hasExternalLinkage() const { return isExternalLinkage(Linkage); } diff --git a/llvm/test/Transforms/GlobalOpt/available_externally_global_ctors.ll b/llvm/test/Transforms/GlobalOpt/available_externally_global_ctors.ll new file mode 100644 index 00000000000..39dc054ac22 --- /dev/null +++ b/llvm/test/Transforms/GlobalOpt/available_externally_global_ctors.ll @@ -0,0 +1,22 @@ +target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.11.0" + +; RUN: opt -S -globalopt < %s | FileCheck %s + +; Verify that the initialization of the available_externally global is not eliminated +; CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @foo_static_init, i8* null }] + +@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @foo_static_init, i8* null }] +@foo_external = available_externally global void ()* null, align 8 + +define internal void @foo_static_init() { +entry: + store void ()* @foo_impl, void ()** @foo_external, align 8 + ret void +} + +define internal void @foo_impl() { +entry: + ret void +} + |
