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1; RUN: llc -mtriple=hexagon < %s | FileCheck %s2 3; One of the loads is only used in a PHI instruction. Make sure the PHI use4; still counts as a user of the load (and that the load is not removed).5 6; CHECK-LABEL: f0:7; CHECK: = vmem({{.*}})8; CHECK: = vmem({{.*}})9 10target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"11target triple = "hexagon"12 13declare <16 x i32> @llvm.hexagon.V6.vmux(<64 x i1>, <16 x i32>, <16 x i32>) #014declare <16 x i32> @llvm.hexagon.V6.vmpyiewuh.acc(<16 x i32>, <16 x i32>, <16 x i32>) #015declare <16 x i32> @llvm.hexagon.V6.vand(<16 x i32>, <16 x i32>) #016declare <64 x i1> @llvm.hexagon.V6.vgtuw.and(<64 x i1>, <16 x i32>, <16 x i32>) #017declare <64 x i1> @llvm.hexagon.V6.pred.or(<64 x i1>, <64 x i1>) #018 19define <16 x i32> @f0(ptr %a0, i32 %a1) local_unnamed_addr #1 {20b0:21 %v0 = getelementptr inbounds i8, ptr %a0, i32 57622 br label %b123 24b1: ; preds = %b4, %b025 %v3 = phi i32 [ 0, %b0 ], [ %v23, %b4 ]26 %v4 = phi <16 x i32> [ poison, %b0 ], [ %v22, %b4 ]27 br i1 poison, label %b2, label %b328 29b2: ; preds = %b130 %v5 = getelementptr inbounds <16 x i32>, ptr %a0, i32 %v331 %v6 = load <16 x i32>, ptr %v5, align 6432 %v7 = getelementptr inbounds <16 x i32>, ptr %v0, i32 %v333 %v8 = load <16 x i32>, ptr %v7, align 6434 %v9 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiewuh.acc(<16 x i32> poison, <16 x i32> %v6, <16 x i32> %v6)35 br label %b436 37b3: ; preds = %b138 br label %b439 40b4: ; preds = %b3, %b241 %v10 = phi <16 x i32> [ %v9, %b2 ], [ poison, %b3 ]42 %v11 = phi <16 x i32> [ %v8, %b2 ], [ poison, %b3 ]43 %v12 = tail call <16 x i32> @llvm.hexagon.V6.vmux(<64 x i1> poison, <16 x i32> %v10, <16 x i32> %v4)44 %v13 = tail call <16 x i32> @llvm.hexagon.V6.vmux(<64 x i1> poison, <16 x i32> %v11, <16 x i32> poison)45 %v14 = or i32 %v3, 146 %v15 = getelementptr inbounds <16 x i32>, ptr %v0, i32 %v1447 %v16 = load <16 x i32>, ptr %v15, align 6448 %v17 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiewuh.acc(<16 x i32> poison, <16 x i32> %v13, <16 x i32> poison)49 %v18 = tail call <16 x i32> @llvm.hexagon.V6.vand(<16 x i32> %v12, <16 x i32> poison)50 %v19 = tail call <64 x i1> @llvm.hexagon.V6.vgtuw.and(<64 x i1> poison, <16 x i32> %v17, <16 x i32> poison)51 %v20 = tail call <64 x i1> @llvm.hexagon.V6.pred.or(<64 x i1> %v19, <64 x i1> poison)52 %v21 = tail call <64 x i1> @llvm.hexagon.V6.pred.or(<64 x i1> %v20, <64 x i1> poison)53 %v22 = tail call <16 x i32> @llvm.hexagon.V6.vmux(<64 x i1> %v21, <16 x i32> poison, <16 x i32> %v12)54 %v23 = add nuw nsw i32 %v3, 255 %v24 = icmp slt i32 %v23, %a156 br i1 %v24, label %b1, label %b5, !llvm.loop !157 58b5: ; preds = %b459 ret <16 x i32> %v2260}61 62attributes #0 = { nocallback nofree nosync nounwind willreturn memory(none) }63attributes #1 = { "target-features"="+hvx-length64b,+hvxv65,+v65,-long-calls" }64 65!llvm.linker.options = !{!0}66 67!0 = !{!"$.str.3", !".rodata.str1.1"}68!1 = distinct !{!1, !2}69!2 = !{!"llvm.loop.mustprogress"}70