[llvm] r340284 - [InstCombine] Add new tests for icmp ugt/ult (add nuw X, C2), C

[Nicola Zaghen via llvm-commits]

Author: nzaghen
Date: Tue Aug 21 08:27:32 2018
New Revision: 340284

URL: http://llvm.org/viewvc/llvm-project?rev=340284&view=rev
Log:
[InstCombine] Add new tests for icmp ugt/ult (add nuw X, C2), C

Differential Revision: https://reviews.llvm.org/D51040


Modified:
    llvm/trunk/test/Transforms/InstCombine/icmp-add.ll

Modified: llvm/trunk/test/Transforms/InstCombine/icmp-add.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/icmp-add.ll?rev=340284&r1=340283&r2=340284&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/icmp-add.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/icmp-add.ll Tue Aug 21 08:27:32 2018
@@ -281,3 +281,46 @@ define i1 @slt_zero_add_nuw_signbit(i8 %
   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
+}