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/long_shift.ll b/test/CodeGen/ARM/long_shift.ll
new file mode 100644
index 0000000..b0a3ee8
--- /dev/null
+++ b/test/CodeGen/ARM/long_shift.ll
@@ -0,0 +1,31 @@
+; RUN: llvm-as < %s | llc -march=thumb
+; RUN: llvm-as < %s | llc -march=arm > %t
+; RUN: grep rrx %t | wc -l | grep 1
+; RUN: grep __ashldi3 %t
+; RUN: grep __ashrdi3 %t
+; RUN: grep __lshrdi3 %t
+
+define i64 @f0(i64 %A, i64 %B) {
+ %tmp = bitcast i64 %A to i64
+ %tmp2 = lshr i64 %B, 1
+ %tmp3 = sub i64 %tmp, %tmp2
+ ret i64 %tmp3
+}
+
+define i32 @f1(i64 %x, i64 %y) {
+ %a = shl i64 %x, %y
+ %b = trunc i64 %a to i32
+ ret i32 %b
+}
+
+define i32 @f2(i64 %x, i64 %y) {
+ %a = ashr i64 %x, %y
+ %b = trunc i64 %a to i32
+ ret i32 %b
+}
+
+define i32 @f3(i64 %x, i64 %y) {
+ %a = lshr i64 %x, %y
+ %b = trunc i64 %a to i32
+ ret i32 %b
+}