Tests for changes made in r45356, where IPO optimizations would drop
collector algorithms.
llvm-svn: 45357
diff --git a/llvm/test/CodeGen/Generic/GC/argpromotion.ll b/llvm/test/CodeGen/Generic/GC/argpromotion.ll
new file mode 100644
index 0000000..5df947a
--- /dev/null
+++ b/llvm/test/CodeGen/Generic/GC/argpromotion.ll
@@ -0,0 +1,19 @@
+; RUN: llvm-as < %s | opt -anders-aa -argpromotion
+
+declare void @llvm.gcroot(i8**, i8*)
+
+define i32 @g() {
+entry:
+ %var = alloca i32
+ store i32 1, i32* %var
+ %x = call i32 @f(i32* %var)
+ ret i32 %x
+}
+
+define internal i32 @f(i32* %xp) gc "example" {
+entry:
+ %var = alloca i8*
+ call void @llvm.gcroot(i8** %var, i8* null)
+ %x = load i32* %xp
+ ret i32 %x
+}
diff --git a/llvm/test/CodeGen/Generic/GC/deadargelim.ll b/llvm/test/CodeGen/Generic/GC/deadargelim.ll
new file mode 100644
index 0000000..c5a56f6
--- /dev/null
+++ b/llvm/test/CodeGen/Generic/GC/deadargelim.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | opt -deadargelim
+
+declare void @llvm.gcroot(i8**, i8*)
+
+define void @g() {
+entry:
+ call void @f(i32 0)
+ ret void
+}
+
+define internal void @f(i32 %unused) gc "example" {
+entry:
+ %var = alloca i8*
+ call void @llvm.gcroot(i8** %var, i8* null)
+ ret void
+}