[llvm] [VPlan] Don't use the legacy cost model for loop conditions (PR #156864)

[John Brawn via llvm-commits]

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@@ -298,27 +298,27 @@ define void @test_minbws_for_trunc(i32 %n, ptr noalias %p1, ptr noalias %p2) {
 ; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i16> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i16> poison, <vscale x 2 x i32> zeroinitializer
 ; CHECK-NEXT:    [[TMP12:%.*]] = sext <vscale x 2 x i16> [[VEC_IND]] to <vscale x 2 x i64>
 ; CHECK-NEXT:    [[TMP13:%.*]] = shl i32 [[INDEX]], 4
-; CHECK-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[P1]], i32 [[TMP13]]
-; CHECK-NEXT:    [[TMP15:%.*]] = call <vscale x 2 x i32> @llvm.experimental.vp.strided.load.nxv2i32.p0.i32(ptr align 4 [[TMP14]], i32 16, <vscale x 2 x i1> splat (i1 true), i32 [[TMP9]])
-; CHECK-NEXT:    [[TMP16:%.*]] = trunc <vscale x 2 x i32> [[TMP15]] to <vscale x 2 x i16>
-; CHECK-NEXT:    [[TMP17:%.*]] = getelementptr [1 x [1 x i16]], ptr [[P2]], <vscale x 2 x i64> [[TMP12]]
-; CHECK-NEXT:    call void @llvm.vp.scatter.nxv2i16.nxv2p0(<vscale x 2 x i16> [[TMP16]], <vscale x 2 x ptr> align 2 [[TMP17]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP9]]), !alias.scope [[META6:![0-9]+]], !noalias [[META9:![0-9]+]]
-; CHECK-NEXT:    [[TMP18:%.*]] = trunc <vscale x 2 x i32> [[TMP15]] to <vscale x 2 x i8>
-; CHECK-NEXT:    [[TMP19:%.*]] = getelementptr i8, ptr [[P2]], <vscale x 2 x i64> [[TMP12]]
-; CHECK-NEXT:    call void @llvm.vp.scatter.nxv2i8.nxv2p0(<vscale x 2 x i8> [[TMP18]], <vscale x 2 x ptr> align 1 [[TMP19]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP9]]), !alias.scope [[META12:![0-9]+]], !noalias [[META13:![0-9]+]]
-; CHECK-NEXT:    [[TMP20:%.*]] = getelementptr [1 x i64], ptr [[P2]], <vscale x 2 x i64> [[TMP12]]
-; CHECK-NEXT:    call void @llvm.vp.scatter.nxv2i64.nxv2p0(<vscale x 2 x i64> zeroinitializer, <vscale x 2 x ptr> align 8 [[TMP20]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP9]]), !alias.scope [[META13]]
+; CHECK-NEXT:    [[TMP20:%.*]] = getelementptr i8, ptr [[P1]], i32 [[TMP13]]
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john-brawn-arm wrote:

Yes, I've removed these changes.

https://github.com/llvm/llvm-project/pull/156864