1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/and-or-fold.ll b/test/CodeGen/X86/and-or-fold.ll
new file mode 100644
index 0000000..7733b8a
--- /dev/null
+++ b/test/CodeGen/X86/and-or-fold.ll
@@ -0,0 +1,14 @@
+; RUN: llc < %s -march=x86 | grep and | count 1
+
+; The dag combiner should fold together (x&127)|(y&16711680) -> (x|y)&c1
+; in this case.
+
+define i32 @test6(i32 %x, i16 %y) {
+        %tmp1 = zext i16 %y to i32              ; <i32> [#uses=1]
+        %tmp2 = and i32 %tmp1, 127              ; <i32> [#uses=1]
+        %tmp4 = shl i32 %x, 16          ; <i32> [#uses=1]
+        %tmp5 = and i32 %tmp4, 16711680         ; <i32> [#uses=1]
+        %tmp6 = or i32 %tmp2, %tmp5             ; <i32> [#uses=1]
+        ret i32 %tmp6
+}
+