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-rw-r--r--test/CodeGen/Mips/rotate.ll40
1 files changed, 40 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/rotate.ll b/test/CodeGen/Mips/rotate.ll
new file mode 100644
index 00000000000..e7dc3093214
--- /dev/null
+++ b/test/CodeGen/Mips/rotate.ll
@@ -0,0 +1,40 @@
+; RUN: llc -march=mips -mcpu=4ke < %s | FileCheck %s
+
+; CHECK: rotrv $2, $4, $2
+define i32 @rot0(i32 %a, i32 %b) nounwind readnone {
+entry:
+ %shl = shl i32 %a, %b
+ %sub = sub i32 32, %b
+ %shr = lshr i32 %a, %sub
+ %or = or i32 %shr, %shl
+ ret i32 %or
+}
+
+; CHECK: rotr $2, $4, 22
+define i32 @rot1(i32 %a) nounwind readnone {
+entry:
+ %shl = shl i32 %a, 10
+ %shr = lshr i32 %a, 22
+ %or = or i32 %shl, %shr
+ ret i32 %or
+}
+
+; CHECK: rotrv $2, $4, $5
+define i32 @rot2(i32 %a, i32 %b) nounwind readnone {
+entry:
+ %shr = lshr i32 %a, %b
+ %sub = sub i32 32, %b
+ %shl = shl i32 %a, %sub
+ %or = or i32 %shl, %shr
+ ret i32 %or
+}
+
+; CHECK: rotr $2, $4, 10
+define i32 @rot3(i32 %a) nounwind readnone {
+entry:
+ %shr = lshr i32 %a, 10
+ %shl = shl i32 %a, 22
+ %or = or i32 %shr, %shl
+ ret i32 %or
+}
+