2 # RUN: llc --march=hexagon %s -run-pass=pipeliner -debug-only=pipeliner \
3 # RUN: -window-sched=force -filetype=null -verify-machineinstrs 2>&1 \
4 # RUN: -window-search-ratio=100 -window-search-num=100 -window-diff-limit=1 \
7 # We want to verify that all three V6_vaddw instructions are emitted in the same cycle.
8 # CHECK-LABEL: Current window Offset is 2
9 # CHECK: Cycle [[CycleNum:[0-9]+]] [{{S.[0-9]+}}]: {{%[0-9]+}}:hvxvr = V6_vaddw {{%[0-9]+}}:hvxvr, {{%[0-9]+}}:hvxvr
10 # CHECK: Cycle [[CycleNum]] [{{S.[0-9]+}}]: {{%[0-9]+}}:hvxvr = V6_vaddw {{%[0-9]+}}:hvxvr, {{%[0-9]+}}:hvxvr
11 # CHECK: Cycle [[CycleNum]] [{{S.[0-9]+}}]: {{%[0-9]+}}:hvxvr = V6_vaddw {{%[0-9]+}}:hvxvr, {{%[0-9]+}}:hvxvr
12 # CHECK-LABEL: Current window Offset is 3
15 define void @add_parallel(i32 %N, ptr noalias %x, ptr noalias %y) {
17 %isZeroLength = icmp eq i32 %N, 0
18 br i1 %isZeroLength, label %loop.exit, label %loop.preheader
20 loop.preheader: ; preds = %entry
21 %half_splat = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1056964608)
22 %one_splat = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1065353216)
23 %two_splat = tail call <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32 1073741824)
26 loop.exit: ; preds = %loop.body, %entry
29 loop.body: ; preds = %loop.body, %loop.preheader
30 %lsr.iv1 = phi ptr [ %cgep2, %loop.body ], [ %x, %loop.preheader ]
31 %lsr.iv = phi ptr [ %cgep1, %loop.body ], [ %y, %loop.preheader ]
32 %index = phi i32 [ 0, %loop.preheader ], [ %index.next, %loop.body ]
33 %vec_x1 = load <32 x i32>, ptr %lsr.iv1, align 128
34 %vec_add_1 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %one_splat, <32 x i32> %vec_x1)
35 %vec_add_2 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %half_splat, <32 x i32> %vec_x1)
36 %vec_add_3 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %two_splat, <32 x i32> %vec_x1)
37 %vec_add_4 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_add_1, <32 x i32> %vec_add_2)
38 %vec_add_5 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_add_1, <32 x i32> %vec_add_3)
39 %vec_add_6 = tail call <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32> %vec_add_5, <32 x i32> %vec_add_4)
40 store <32 x i32> %vec_add_6, ptr %lsr.iv, align 128
41 %index.next = add nuw i32 %index, 32
42 %continue = icmp ult i32 %index.next, %N
43 %cgep1 = getelementptr i8, ptr %lsr.iv, i32 128
44 %cgep2 = getelementptr i8, ptr %lsr.iv1, i32 128
45 br i1 %continue, label %loop.body, label %loop.exit
48 declare <32 x i32> @llvm.hexagon.V6.lvsplatw.128B(i32)
49 declare <32 x i32> @llvm.hexagon.V6.vaddw.128B(<32 x i32>, <32 x i32>)
53 tracksRegLiveness: true
56 successors: %bb.2(0x30000000), %bb.1(0x50000000)
57 liveins: $r0, $r1, $r2
62 %3:predregs = C2_cmpeqi %2, 0
63 J2_jumpt killed %3, %bb.2, implicit-def dead $pc
64 J2_jump %bb.1, implicit-def dead $pc
67 successors: %bb.3(0x80000000)
69 %4:intregs = A2_tfrsi 1056964608
70 %5:hvxvr = V6_lvsplatw killed %4
71 %6:intregs = A2_tfrsi 1065353216
72 %7:hvxvr = V6_lvsplatw killed %6
73 %8:intregs = A2_tfrsi 1073741824
74 %9:hvxvr = V6_lvsplatw killed %8
75 %10:intregs = A2_addi %2, 31
76 %11:intregs = S2_lsr_i_r %10, 5
77 %12:intregs = COPY %11
78 J2_loop0r %bb.3, %12, implicit-def $lc0, implicit-def $sa0, implicit-def $usr
79 J2_jump %bb.3, implicit-def dead $pc
82 PS_jmpret $r31, implicit-def dead $pc
84 bb.3.loop.body (machine-block-address-taken):
85 successors: %bb.3(0x7c000000), %bb.2(0x04000000)
87 %13:intregs = PHI %1, %bb.1, %14, %bb.3
88 %15:intregs = PHI %0, %bb.1, %16, %bb.3
89 %17:hvxvr, %14:intregs = V6_vL32b_pi %13, 128 :: (load (s1024) from %ir.lsr.iv1)
90 %18:hvxvr = V6_vaddw %7, %17
91 %19:hvxvr = V6_vaddw %5, %17
92 %20:hvxvr = V6_vaddw %9, %17
93 %21:hvxvr = V6_vaddw %18, killed %19
94 %22:hvxvr = V6_vaddw %18, killed %20
95 %23:hvxvr = V6_vaddw killed %22, killed %21
96 %16:intregs = V6_vS32b_pi %15, 128, killed %23 :: (store (s1024) into %ir.lsr.iv)
97 ENDLOOP0 %bb.3, implicit-def $pc, implicit-def $lc0, implicit $sa0, implicit $lc0
98 J2_jump %bb.2, implicit-def dead $pc