1 files changed, 23 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/integer-bool.ll b/test/Transforms/GlobalOpt/integer-bool.ll
new file mode 100644
index 000000000000..9fbbe357617d
--- /dev/null
+++ b/test/Transforms/GlobalOpt/integer-bool.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | opt -globalopt -instcombine | \
+; RUN:    llvm-dis | grep {ret i1 true}
+
+;; check that global opt turns integers that only hold 0 or 1 into bools.
+
+@G = internal global i32 0              ; <i32*> [#uses=3]
+
+define void @set1() {
+        store i32 0, i32* @G
+        ret void
+}
+
+define void @set2() {
+        store i32 1, i32* @G
+        ret void
+}
+
+define i1 @get() {
+        %A = load i32* @G               ; <i32> [#uses=1]
+        %C = icmp slt i32 %A, 2         ; <i1> [#uses=1]
+        ret i1 %C
+}
+