2 # RUN: llc --march=hexagon %s -run-pass=pipeliner -debug-only=pipeliner \
3 # RUN: -window-sched=force -filetype=null -verify-machineinstrs \
4 # RUN: -window-region-limit=1 -window-search-ratio=100 -window-diff-limit=0 \
5 # RUN: 2>&1 | FileCheck %s
7 # CHECK-LABEL: Start analyzing II
8 # CHECK: MaxStallCycle is 0
9 # CHECK-LABEL: Start analyzing II
10 # CHECK: MaxStallCycle is 0
11 # CHECK-LABEL: Start analyzing II
12 # CHECK: MaxStallCycle is 0
15 name: test_window_stall_cycle
16 tracksRegLiveness: true
19 successors: %bb.3(0x40000000), %bb.1(0x40000000)
24 %2:intregs = nsw A2_add %0, %1
25 %3:intregs = S2_lsr_i_r_acc %2, %2, 31
26 %4:intregs = S2_asr_i_r killed %3, 1
27 %5:predregs = C2_cmpgt %1, %4
28 %6:intregs = A2_tfrsi 0
29 J2_jumpt killed %5, %bb.3, implicit-def dead $pc
30 J2_jump %bb.1, implicit-def dead $pc
33 successors: %bb.2(0x80000000)
35 %7:intregs = A2_addi %4, 2
36 %8:intregs = A2_tfrsi 0
37 %9:intregs = A2_sub %4, %1
38 %10:intregs = A2_addi %9, 1
39 %11:intregs = COPY %10
40 J2_loop0r %bb.2, %11, implicit-def $lc0, implicit-def $sa0, implicit-def $usr
42 bb.2 (machine-block-address-taken):
43 successors: %bb.3(0x04000000), %bb.2(0x7c000000)
45 %12:intregs = PHI %7, %bb.1, %13, %bb.2
46 %14:intregs = PHI %8, %bb.1, %15, %bb.2
47 %16:intregs = PHI %8, %bb.1, %17, %bb.2
48 %18:intregs, %13:intregs = L2_loadri_pi %12, -4
49 %17:intregs = nsw A2_add killed %18, %16
50 %15:intregs = A2_max %17, %14
51 ENDLOOP0 %bb.2, implicit-def $pc, implicit-def $lc0, implicit $sa0, implicit $lc0
52 J2_jump %bb.3, implicit-def dead $pc
55 %19:intregs = PHI %6, %bb.0, %15, %bb.2
57 PS_jmpret $r31, implicit-def dead $pc, implicit $r0