[SystemZ] Improve risbg-01.ll test

[oota-llvm.git] / test / CodeGen / SystemZ / rnsbg-01.ll

diff --git a/test/CodeGen/SystemZ/rnsbg-01.ll b/test/CodeGen/SystemZ/rnsbg-01.ll
index 666aeb21e8d801422b51f9e0bd1e0cbc7cae1790..282810a781518b21d7a5d992f6aee954cbaa69a8 100644 (file)
--- a/test/CodeGen/SystemZ/rnsbg-01.ll
+++ b/test/CodeGen/SystemZ/rnsbg-01.ll
@@ -255,3 +255,14 @@ define i64 @f22(i64 %a, i64 %b) {
   %and = and i64 %a, %rotlorb
   ret i64 %and
 }
+
+; Check the handling of zext and AND, which isn't suitable for RNSBG.
+define i64 @f23(i64 %a, i32 %b) {
+; CHECK-LABEL: f23:
+; CHECK-NOT: rnsbg
+; CHECK: br %r14
+  %add = add i32 %b, 1
+  %ext = zext i32 %add to i64
+  %and = and i64 %a, %ext
+  ret i64 %and
+}