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1# REQUIRES: asserts2# RUN: llc --mtriple=hexagon %s -run-pass=pipeliner -debug-only=pipeliner \3# RUN: -window-sched=force -filetype=null -verify-machineinstrs 2>&1 \4# RUN: | FileCheck %s5 6# CHECK: Best window offset is {{[0-9]+}} and Best II is {{[0-9]+}}.7 8--- |9 define void @exp_approx_top_six(i32 %N, ptr noalias %x, ptr noalias %y) #0 {10 entry:11 %is_zero = icmp eq i32 %N, 012 br i1 %is_zero, label %exit, label %loop_header13 14 loop_header:15 %vec_one = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1065353216)16 %vec_half = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1056964608)17 %vec_sixth = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1042983595)18 %vec_24th = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1026206379)19 %vec_120th = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1007192201)20 %vec_720th = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 985008993)21 br label %loop_body22 23 exit:24 ret void25 26 loop_body:27 %lsr.iv1 = phi ptr [ %cgep3, %loop_body ], [ %x, %loop_header ]28 %lsr.iv = phi ptr [ %cgep, %loop_body ], [ %y, %loop_header ]29 %index = phi i32 [ 0, %loop_header ], [ %index_next, %loop_body ]30 %vec_input = load <32 x i32>, ptr %lsr.iv1, align 12831 %vec_input_pow_2 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_input, <32 x i32> %vec_input)32 %vec_input_pow_3 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_input_pow_2, <32 x i32> %vec_input)33 %vec_input_pow_4 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_input_pow_3, <32 x i32> %vec_input)34 %vec_input_pow_5 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_input_pow_4, <32 x i32> %vec_input)35 %vec_input_pow_6 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_input_pow_5, <32 x i32> %vec_input)36 %vec_exp_approx_1 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_half, <32 x i32> %vec_input_pow_2)37 %vec_exp_approx_2 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_sixth, <32 x i32> %vec_input_pow_3)38 %vec_exp_approx_3 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_24th, <32 x i32> %vec_input_pow_4)39 %vec_exp_approx_4 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_120th, <32 x i32> %vec_input_pow_5)40 %vec_exp_approx_5 = tail call <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32> %vec_720th, <32 x i32> %vec_input_pow_6)41 %vec_exp_sum_1 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_one, <32 x i32> %vec_input)42 %vec_exp_sum_2 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_exp_sum_1, <32 x i32> %vec_exp_approx_1)43 %vec_exp_sum_3 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_exp_sum_2, <32 x i32> %vec_exp_approx_2)44 %vec_exp_sum_4 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_exp_sum_3, <32 x i32> %vec_exp_approx_3)45 %vec_exp_sum_5 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_exp_sum_4, <32 x i32> %vec_exp_approx_4)46 %vec_exp_result = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_exp_sum_5, <32 x i32> %vec_exp_approx_5)47 store <32 x i32> %vec_exp_result, ptr %lsr.iv, align 12848 %index_next = add nuw i32 %index, 3249 %loop_cond = icmp ult i32 %index_next, %N50 %cgep = getelementptr i8, ptr %lsr.iv, i32 12851 %cgep3 = getelementptr i8, ptr %lsr.iv1, i32 12852 br i1 %loop_cond, label %loop_body, label %exit53 }54 55 declare <32 x i32> @llvm.hexagon.V6.vmpyowh.rnd.128B(<32 x i32>, <32 x i32>)56 declare <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32)57 declare <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32>, <32 x i32>)58 59 attributes #0 = { "target-features"="+hvx-length128b,+hvxv69,+v66,-long-calls" }60...61---62name: exp_approx_top_six63tracksRegLiveness: true64body: |65 bb.0.entry:66 successors: %bb.2(0x30000000), %bb.1(0x50000000)67 liveins: $r0, $r1, $r268 69 %0:intregs = COPY $r270 %1:intregs = COPY $r171 %2:intregs = COPY $r072 %3:predregs = C2_cmpeqi %2, 073 J2_jumpt killed %3, %bb.2, implicit-def dead $pc74 J2_jump %bb.1, implicit-def dead $pc75 76 bb.1.loop_header:77 successors: %bb.3(0x80000000)78 79 %4:intregs = A2_tfrsi 106535321680 %5:hvxvr = V6_lvsplatw killed %481 %6:intregs = A2_tfrsi 105696460882 %7:hvxvr = V6_lvsplatw killed %683 %8:intregs = A2_tfrsi 104298359584 %9:hvxvr = V6_lvsplatw killed %885 %10:intregs = A2_tfrsi 102620637986 %11:hvxvr = V6_lvsplatw killed %1087 %12:intregs = A2_tfrsi 100719220188 %13:hvxvr = V6_lvsplatw killed %1289 %14:intregs = A2_tfrsi 98500899390 %15:hvxvr = V6_lvsplatw killed %1491 %16:intregs = A2_addi %2, 3192 %17:intregs = S2_lsr_i_r %16, 593 %18:intregs = COPY %1794 J2_loop0r %bb.3, %18, implicit-def $lc0, implicit-def $sa0, implicit-def $usr95 J2_jump %bb.3, implicit-def dead $pc96 97 bb.2.exit:98 PS_jmpret $r31, implicit-def dead $pc99 100 bb.3.loop_body (machine-block-address-taken):101 successors: %bb.3(0x7c000000), %bb.2(0x04000000)102 103 %19:intregs = PHI %1, %bb.1, %20, %bb.3104 %21:intregs = PHI %0, %bb.1, %22, %bb.3105 %23:hvxvr, %20:intregs = V6_vL32b_pi %19, 128 :: (load (s1024) from %ir.lsr.iv1)106 %24:hvxvr = V6_vmpyowh_rnd %23, %23107 %25:hvxvr = V6_vmpyowh_rnd %24, %23108 %26:hvxvr = V6_vmpyowh_rnd %25, %23109 %27:hvxvr = V6_vmpyowh_rnd %26, %23110 %28:hvxvr = V6_vmpyowh_rnd %27, %23111 %29:hvxvr = V6_vmpyowh_rnd %7, %24112 %30:hvxvr = V6_vmpyowh_rnd %9, %25113 %31:hvxvr = V6_vmpyowh_rnd %11, %26114 %32:hvxvr = V6_vmpyowh_rnd %13, %27115 %33:hvxvr = V6_vmpyowh_rnd %15, killed %28116 %34:hvxvr = V6_vaddw %5, %23117 %35:hvxvr = V6_vaddw killed %34, killed %29118 %36:hvxvr = V6_vaddw killed %35, killed %30119 %37:hvxvr = V6_vaddw killed %36, killed %31120 %38:hvxvr = V6_vaddw killed %37, killed %32121 %39:hvxvr = V6_vaddw killed %38, killed %33122 %22:intregs = V6_vS32b_pi %21, 128, killed %39 :: (store (s1024) into %ir.lsr.iv)123 ENDLOOP0 %bb.3, implicit-def $pc, implicit-def $lc0, implicit $sa0, implicit $lc0124 J2_jump %bb.2, implicit-def dead $pc125...126