Symbols re-defined with -wrap and -defsym need to be excluded from inter-
procedural optimizations to prevent dropping symbols and allow the linker
to process re-directs.
PR33145: --wrap doesn't work with lto.
Differential Revision: https://reviews.llvm.org/D33621
llvm-svn: 304719
diff --git a/llvm/test/LTO/Resolution/X86/linker-redef.ll b/llvm/test/LTO/Resolution/X86/linker-redef.ll
new file mode 100644
index 0000000..802a54d
--- /dev/null
+++ b/llvm/test/LTO/Resolution/X86/linker-redef.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as %s -o %t.o
+; RUN: llvm-lto2 run -o %t1.o %t.o -r %t.o,bar,pr
+; RUN: llvm-readobj -t %t1.o.0 | FileCheck %s
+
+; CHECK: Name: bar
+; CHECK-NEXT: Value:
+; CHECK-NEXT: Size:
+; CHECK-NEXT: Binding: Weak
+; CHECK-NEXT: Type: Function
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @bar() {
+ ret void
+}