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-rw-r--r--test/Transforms/InstSimplify/compare.ll40
1 files changed, 40 insertions, 0 deletions
diff --git a/test/Transforms/InstSimplify/compare.ll b/test/Transforms/InstSimplify/compare.ll
index 0e270bbe0f..1a62e27dd8 100644
--- a/test/Transforms/InstSimplify/compare.ll
+++ b/test/Transforms/InstSimplify/compare.ll
@@ -826,3 +826,43 @@ define i1 @compare_dividend(i32 %a) {
; CHECK-LABEL: @compare_dividend
; CHECK-NEXT: ret i1 false
}
+
+define i1 @lshr_ugt_false(i32 %a) {
+ %shr = lshr i32 1, %a
+ %cmp = icmp ugt i32 %shr, 1
+ ret i1 %cmp
+; CHECK-LABEL: @lshr_ugt_false
+; CHECK-NEXT: ret i1 false
+}
+
+define i1 @exact_lshr_ugt_false(i32 %a) {
+ %shr = lshr exact i32 30, %a
+ %cmp = icmp ult i32 %shr, 15
+ ret i1 %cmp
+; CHECK-LABEL: @exact_lshr_ugt_false
+; CHECK-NEXT: ret i1 false
+}
+
+define i1 @lshr_sgt_false(i32 %a) {
+ %shr = lshr i32 1, %a
+ %cmp = icmp sgt i32 %shr, 1
+ ret i1 %cmp
+; CHECK-LABEL: @lshr_sgt_false
+; CHECK-NEXT: ret i1 false
+}
+
+define i1 @ashr_sgt_false(i32 %a) {
+ %shr = ashr i32 -30, %a
+ %cmp = icmp sgt i32 %shr, -1
+ ret i1 %cmp
+; CHECK-LABEL: @ashr_sgt_false
+; CHECK-NEXT: ret i1 false
+}
+
+define i1 @exact_ashr_sgt_false(i32 %a) {
+ %shr = ashr exact i32 -30, %a
+ %cmp = icmp sgt i32 %shr, -15
+ ret i1 %cmp
+; CHECK-LABEL: @exact_ashr_sgt_false
+; CHECK-NEXT: ret i1 false
+}