1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/and_add.ll b/test/CodeGen/PowerPC/and_add.ll
new file mode 100644
index 000000000000..f103e7c0df06
--- /dev/null
+++ b/test/CodeGen/PowerPC/and_add.ll
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llc -march=ppc32 -o %t -f
+; RUN: grep slwi %t
+; RUN: not grep addi %t
+; RUN: not grep rlwinm %t
+
+define i32 @test(i32 %A) {
+        ;; shift
+        %B = mul i32 %A, 8              ; <i32> [#uses=1]
+        ;; dead, no demanded bits.
+        %C = add i32 %B, 7              ; <i32> [#uses=1]
+        ;; dead once add is gone.
+        %D = and i32 %C, -8             ; <i32> [#uses=1]
+        ret i32 %D
+}
+