It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/uxt_rot.ll b/test/CodeGen/ARM/uxt_rot.ll
new file mode 100644
index 0000000..d15c650
--- /dev/null
+++ b/test/CodeGen/ARM/uxt_rot.ll
@@ -0,0 +1,24 @@
+; 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, 8
+ %C.u = shl i32 %A.u, 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
+}