[llvm] [VPlan] Introduce CSE pass (PR #151872)

[Florian Hahn via llvm-commits]

================
@@ -230,11 +230,11 @@ define void @vscale_mul_31(ptr noalias noundef readonly captures(none) %a, ptr n
 ; CHECK-NEXT:    [[WIDE_LOAD3:%.*]] = load <vscale x 4 x float>, ptr [[TMP16]], align 4
 ; CHECK-NEXT:    [[TMP17:%.*]] = fmul <vscale x 4 x float> [[WIDE_LOAD]], [[WIDE_LOAD2]]
 ; CHECK-NEXT:    [[TMP18:%.*]] = fmul <vscale x 4 x float> [[WIDE_LOAD1]], [[WIDE_LOAD3]]
-; CHECK-NEXT:    [[TMP19:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT:    [[TMP20:%.*]] = mul nuw i64 [[TMP19]], 4
-; CHECK-NEXT:    [[TMP21:%.*]] = getelementptr inbounds nuw float, ptr [[TMP12]], i64 [[TMP20]]
+; CHECK-NEXT:    [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
----------------
fhahn wrote:

rename only change

https://github.com/llvm/llvm-project/pull/151872