[llvm] [VPlan] Fold redundant idempotent and self-cancelling binary ops (PR #196080)

[Madhur Amilkanthwar via llvm-commits]

================
@@ -1497,7 +1497,7 @@ define i32 @PR33613(ptr %b, double %j, i32 %d, i32 %n) {
 ; UNROLL-NO-IC-NEXT:    br i1 [[CMP_N]], label %[[FOR_COND_CLEANUP:.*]], label %[[SCALAR_PH]]
 ; UNROLL-NO-IC:       [[SCALAR_PH]]:
 ; UNROLL-NO-IC-NEXT:    [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ [[B]], %[[ENTRY]] ]
-; UNROLL-NO-IC-NEXT:    [[BC_RESUME_VAL1:%.*]] = phi i32 [ [[TMP49]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
+; UNROLL-NO-IC-NEXT:    [[BC_RESUME_VAL9:%.*]] = phi i32 [ [[TMP49]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
----------------
madhur13490 wrote:

Done.

https://github.com/llvm/llvm-project/pull/196080