1 files changed, 35 insertions, 0 deletions
diff --git a/test/Transforms/LowerBitSets/layout.ll b/test/Transforms/LowerBitSets/layout.ll
new file mode 100644
index 0000000..a0c6e77
--- /dev/null
+++ b/test/Transforms/LowerBitSets/layout.ll
@@ -0,0 +1,35 @@
+; RUN: opt -S -lowerbitsets < %s | FileCheck %s
+
+target datalayout = "e-p:32:32"
+
+; Tests that this set of globals is laid out according to our layout algorithm
+; (see GlobalLayoutBuilder in include/llvm/Transforms/IPO/LowerBitSets.h).
+; The chosen layout in this case is a, e, b, d, c.
+
+; CHECK: private constant { i32, [0 x i8], i32, [0 x i8], i32, [0 x i8], i32, [0 x i8], i32 } { i32 1, [0 x i8] zeroinitializer, i32 5, [0 x i8] zeroinitializer, i32 2, [0 x i8] zeroinitializer, i32 4, [0 x i8] zeroinitializer, i32 3 }
+@a = constant i32 1
+@b = constant i32 2
+@c = constant i32 3
+@d = constant i32 4
+@e = constant i32 5
+
+!0 = !{!"bitset1", i32* @a, i32 0}
+!1 = !{!"bitset1", i32* @b, i32 0}
+!2 = !{!"bitset1", i32* @c, i32 0}
+
+!3 = !{!"bitset2", i32* @b, i32 0}
+!4 = !{!"bitset2", i32* @d, i32 0}
+
+!5 = !{!"bitset3", i32* @a, i32 0}
+!6 = !{!"bitset3", i32* @e, i32 0}
+
+!llvm.bitsets = !{ !0, !1, !2, !3, !4, !5, !6 }
+
+declare i1 @llvm.bitset.test(i8* %ptr, metadata %bitset) nounwind readnone
+
+define void @foo() {
+  %x = call i1 @llvm.bitset.test(i8* undef, metadata !"bitset1")
+  %y = call i1 @llvm.bitset.test(i8* undef, metadata !"bitset2")
+  %z = call i1 @llvm.bitset.test(i8* undef, metadata !"bitset3")
+  ret void
+}