Internalize common symbols when we can.

[oota-llvm.git] / test / tools / gold / common.ll

diff --git a/test/tools/gold/common.ll b/test/tools/gold/common.ll
index 77976c844956d667c2912429a476c804ac850e0e..f3092310a1da7a26d5d95770cd34566be9f2d952 100644 (file)
--- a/test/tools/gold/common.ll
+++ b/test/tools/gold/common.ll
@@ -8,4 +8,22 @@
 
 @a = common global i8 0, align 8
 
+; Shared library case, we merge @a as common and keep it for the symbol table.
 ; CHECK: @a = common global i16 0, align 8
+
+; RUN: ld -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --plugin-opt=emit-llvm \
+; RUN:    %t1.o %t2.o -o %t3.o
+; RUN: llvm-dis %t3.o -o - | FileCheck --check-prefix=EXEC %s
+
+; All IR case, we internalize a after merging.
+; EXEC: @a = internal global i16 0, align 8
+
+; RUN: llc %p/Inputs/common.ll -o %t2.o -filetype=obj
+; RUN: ld -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --plugin-opt=emit-llvm \
+; RUN:    %t1.o %t2.o -o %t3.o
+; RUN: llvm-dis %t3.o -o - | FileCheck --check-prefix=MIXED %s
+
+; Mixed ELF and IR. We keep ours as common so the linker will finish the merge.
+; MIXED: @a = common global i8 0, align 8