[llvm] [LLVM][InstCombine][SVE] fcvtnt(a,all_active,b) != fcvtnt(undef,all_active,b) (PR #110278)

[via llvm-commits]

================
@@ -150,7 +150,7 @@ define <vscale x 8 x half> @test_fcvtnt_f16_f32(<vscale x 8 x half> %a, <vscale
 ; CHECK-LABEL: define <vscale x 8 x half> @test_fcvtnt_f16_f32(
 ; CHECK-SAME: <vscale x 8 x half> [[A:%.*]], <vscale x 4 x float> [[B:%.*]]) {
 ; CHECK-NEXT:    [[PG:%.*]] = tail call <vscale x 4 x i1> @llvm.aarch64.sve.ptrue.nxv4i1(i32 31)
-; CHECK-NEXT:    [[OUT:%.*]] = call <vscale x 8 x half> @llvm.aarch64.sve.fcvtnt.f16f32(<vscale x 8 x half> undef, <vscale x 4 x i1> [[PG]], <vscale x 4 x float> [[B]])
+; CHECK-NEXT:    [[OUT:%.*]] = call <vscale x 8 x half> @llvm.aarch64.sve.fcvtnt.f16f32(<vscale x 8 x half> [[A]], <vscale x 4 x i1> [[PG]], <vscale x 4 x float> [[B]])
----------------
SpencerAbson wrote:

I'd be happy to remove these, but no strong opinion.

https://github.com/llvm/llvm-project/pull/110278