ARM test cases contributed by Apple.

llvm-svn: 33354

1 files changed, 26 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/ARM/uxt_rot.ll b/llvm/test/CodeGen/ARM/uxt_rot.ll
new file mode 100644
index 00000000000..47f907e4fb4
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/uxt_rot.ll
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | llc -march=arm &&
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 &&
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | grep "uxtb"  | wc -l | grep 1 &&
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | grep "uxtab" | wc -l | grep 1 &&
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | grep "uxth"  | wc -l | grep 1
+
+define i8 %test1(i32 %A.u) zext {
+    %B.u = trunc i32 %A.u to i8
+    ret i8 %B.u
+}
+
+define i32 %test2(i32 %A.u, i32 %B.u) zext {
+    %C.u = trunc i32 %B.u to i8
+    %D.u = zext i8 %C.u to i32
+    %E.u = add i32 %A.u, %D.u
+    ret i32 %E.u
+}
+
+define i32 %test3(i32 %A.u) zext {
+    %B.u = lshr i32 %A.u, i8 8
+    %C.u = shl i32 %A.u, i8 24
+    %D.u = or i32 %B.u, %C.u
+    %E.u = trunc i32 %D.u to i16
+    %F.u = zext i16 %E.u to i32
+    ret i32 %F.u
+}