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-rw-r--r--llvm/test/Transforms/InstCombine/icmp-add.ll43
1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/icmp-add.ll b/llvm/test/Transforms/InstCombine/icmp-add.ll
index ec2fd13315e..49517e580ef 100644
--- a/llvm/test/Transforms/InstCombine/icmp-add.ll
+++ b/llvm/test/Transforms/InstCombine/icmp-add.ll
@@ -281,3 +281,46 @@ define i1 @slt_zero_add_nuw_signbit(i8 %x) {
ret i1 %z
}
+define i1 @reduce_add_ult(i32 %in) {
+; CHECK-LABEL: @reduce_add_ult(
+; CHECK-NEXT: [[A6:%.*]] = add nuw i32 [[IN:%.*]], 3
+; CHECK-NEXT: [[A18:%.*]] = icmp ult i32 [[A6]], 12
+; CHECK-NEXT: ret i1 [[A18]]
+;
+ %a6 = add nuw i32 %in, 3
+ %a18 = icmp ult i32 %a6, 12
+ ret i1 %a18
+}
+
+define i1 @reduce_add_ugt(i32 %in) {
+; CHECK-LABEL: @reduce_add_ugt(
+; CHECK-NEXT: [[A6:%.*]] = add nuw i32 [[IN:%.*]], 3
+; CHECK-NEXT: [[A18:%.*]] = icmp ugt i32 [[A6]], 12
+; CHECK-NEXT: ret i1 [[A18]]
+;
+ %a6 = add nuw i32 %in, 3
+ %a18 = icmp ugt i32 %a6, 12
+ ret i1 %a18
+}
+
+define i1 @reduce_add_ule(i32 %in) {
+; CHECK-LABEL: @reduce_add_ule(
+; CHECK-NEXT: [[A6:%.*]] = add nuw i32 [[IN:%.*]], 3
+; CHECK-NEXT: [[A18:%.*]] = icmp ult i32 [[A6]], 13
+; CHECK-NEXT: ret i1 [[A18]]
+;
+ %a6 = add nuw i32 %in, 3
+ %a18 = icmp ule i32 %a6, 12
+ ret i1 %a18
+}
+
+define i1 @reduce_add_uge(i32 %in) {
+; CHECK-LABEL: @reduce_add_uge(
+; CHECK-NEXT: [[A6:%.*]] = add nuw i32 [[IN:%.*]], 3
+; CHECK-NEXT: [[A18:%.*]] = icmp ugt i32 [[A6]], 11
+; CHECK-NEXT: ret i1 [[A18]]
+;
+ %a6 = add nuw i32 %in, 3
+ %a18 = icmp uge i32 %a6, 12
+ ret i1 %a18
+}
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