4 files changed, 37 insertions, 4 deletions
diff --git a/test/Transforms/GlobalDCE/2009-01-05-DeadAliases.ll b/test/Transforms/GlobalDCE/2009-01-05-DeadAliases.ll
index 0bdced5..584f0bf 100644
--- a/test/Transforms/GlobalDCE/2009-01-05-DeadAliases.ll
+++ b/test/Transforms/GlobalDCE/2009-01-05-DeadAliases.ll
@@ -5,14 +5,14 @@
 @A = global i32 0
 ; CHECK: @A = global i32 0
 
-@D = alias internal i32* @A
+@D = internal alias i32* @A
 ; DEAD-NOT: @D
 
 @L1 = alias i32* @A
 ; CHECK: @L1 = alias i32* @A
 
-@L2 = alias internal i32* @L1
-; CHECK: @L2 = alias internal i32* @L1
+@L2 = internal alias i32* @L1
+; CHECK: @L2 = internal alias i32* @L1
 
 @L3 = alias i32* @L2
 ; CHECK: @L3 = alias i32* @L2
diff --git a/test/Transforms/GlobalDCE/2009-02-17-AliasUsesAliasee.ll b/test/Transforms/GlobalDCE/2009-02-17-AliasUsesAliasee.ll
index 68933c6..5fb4444 100644
--- a/test/Transforms/GlobalDCE/2009-02-17-AliasUsesAliasee.ll
+++ b/test/Transforms/GlobalDCE/2009-02-17-AliasUsesAliasee.ll
@@ -1,4 +1,4 @@
 ; RUN: opt < %s -globaldce
 
-@A = alias internal void ()* @F
+@A = internal alias void ()* @F
 define internal void @F() { ret void }
diff --git a/test/Transforms/GlobalDCE/deadblockaddr.ll b/test/Transforms/GlobalDCE/deadblockaddr.ll
new file mode 100644
index 0000000..1ec5994
--- /dev/null
+++ b/test/Transforms/GlobalDCE/deadblockaddr.ll
@@ -0,0 +1,16 @@
+; RUN: opt -globaldce -simplifycfg -S < %s | FileCheck %s
+
+; Tests whether globaldce does the right cleanup while removing @bar
+; so that a dead BlockAddress reference to foo won't prevent other passes
+; to work properly, e.g. simplifycfg
+@bar = internal unnamed_addr constant i8* blockaddress(@foo, %L1)
+
+; CHECK-LABEL: foo
+; CHECK-NOT: br label %L1
+; CHECK: ret void
+define void @foo() {
+entry:
+  br label %L1
+L1:
+  ret void
+}
diff --git a/test/Transforms/GlobalDCE/pr20981.ll b/test/Transforms/GlobalDCE/pr20981.ll
new file mode 100644
index 0000000..92d2840
--- /dev/null
+++ b/test/Transforms/GlobalDCE/pr20981.ll
@@ -0,0 +1,17 @@
+; RUN: opt < %s -globaldce -S | FileCheck %s
+
+$c1 = comdat any
+; CHECK: $c1 = comdat any
+
+@a1 = linkonce_odr alias void ()* @f1
+; CHECK: @a1 = linkonce_odr alias void ()* @f1
+
+define linkonce_odr void @f1() comdat $c1 {
+  ret void
+}
+; CHECK: define linkonce_odr void @f1() comdat $c1
+
+define void @g() {
+  call void @f1()
+  ret void
+}