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/sxt_rot.ll b/test/CodeGen/ARM/sxt_rot.ll
new file mode 100644
index 0000000..bf62d08
--- /dev/null
+++ b/test/CodeGen/ARM/sxt_rot.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | \
+; RUN: grep sxtb | wc -l | grep 1
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | \
+; RUN: grep sxtab | wc -l | grep 1
+
+define i8 @test1(i32 %A) sext {
+ %B = lshr i32 %A, 8
+ %C = shl i32 %A, 24
+ %D = or i32 %B, %C
+ %E = trunc i32 %D to i8
+ ret i8 %E
+}
+
+define i32 @test2(i32 %A, i32 %X) sext {
+ %B = lshr i32 %A, 8
+ %C = shl i32 %A, 24
+ %D = or i32 %B, %C
+ %E = trunc i32 %D to i8
+ %F = sext i8 %E to i32
+ %G = add i32 %F, %X
+ ret i32 %G
+}