1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2# RUN: llc %s -o - -run-pass=if-converter -verify-machineinstrs | FileCheck %s
3# Make sure we correctly if-convert blocks containing an unanalyzable branch sequence.
4# (In this case, multiple conditional branches)
5
6--- |
7  target triple = "thumbv7-unknown-linux-gnueabi"
8
9  define dso_local void @fn1() {
10  l_yes:
11    ret void
12  }
13
14  declare dso_local i32 @fn2(...)
15...
16---
17name:            fn1
18alignment:       2
19tracksRegLiveness: true
20body:             |
21  ; CHECK-LABEL: name: fn1
22  ; CHECK: bb.0:
23  ; CHECK:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
24  ; CHECK:   liveins: $r0, $r1, $r2, $r4, $lr
25  ; CHECK:   $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $lr
26  ; CHECK:   t2CMPri killed renamable $r2, 34, 14 /* CC::al */, $noreg, implicit-def $cpsr
27  ; CHECK:   $r0 = t2MOVi 2, 1 /* CC::ne */, $cpsr, $noreg
28  ; CHECK:   $r0 = t2MOVi 3, 0 /* CC::eq */, killed $cpsr, $noreg, implicit killed $r0
29  ; CHECK:   tBL 14 /* CC::al */, $noreg, @fn2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit killed $r1, implicit-def $sp, implicit-def dead $r0
30  ; CHECK:   t2CMPri $sp, 34, 14 /* CC::al */, $noreg, implicit-def $cpsr
31  ; CHECK:   t2Bcc %bb.2, 1 /* CC::ne */, $cpsr
32  ; CHECK:   t2Bcc %bb.2, 2 /* CC::hs */, killed $cpsr
33  ; CHECK:   t2B %bb.1, 14 /* CC::al */, $noreg
34  ; CHECK: bb.1:
35  ; CHECK:   INLINEASM &"", 1
36  ; CHECK:   $sp = t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $pc
37  ; CHECK: bb.2.l_yes (address-taken):
38  ; CHECK:   $sp = t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $pc
39  bb.0:
40    successors: %bb.1(0x40000000), %bb.2(0x40000000)
41    liveins: $r0, $r1, $r2, $r4, $lr
42
43    $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r4, killed $lr
44    t2CMPri killed renamable $r2, 34, 14, $noreg, implicit-def $cpsr
45    t2Bcc %bb.2, 1, killed $cpsr
46
47  bb.1:
48    successors: %bb.3(0x40000000), %bb.4(0x40000000)
49    liveins: $r1
50
51    $r0 = t2MOVi 3, 14, $noreg, $noreg
52    tBL 14, $noreg, @fn2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit-def $sp, implicit-def dead $r0
53    t2CMPri $sp, 34, 14, $noreg, implicit-def $cpsr
54    t2Bcc %bb.4, 1, $cpsr
55    t2Bcc %bb.4, 2, killed $cpsr
56    t2B %bb.3, 14, $noreg
57
58  bb.2:
59    successors: %bb.3(0x40000000), %bb.4(0x40000000)
60    liveins: $r1
61
62    $r0 = t2MOVi 2, 14, $noreg, $noreg
63    tBL 14, $noreg, @fn2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit-def $sp, implicit-def dead $r0
64    t2CMPri $sp, 34, 14, $noreg, implicit-def $cpsr
65    t2Bcc %bb.4, 1, $cpsr
66    t2Bcc %bb.4, 2, killed $cpsr
67    t2B %bb.3, 14, $noreg
68
69  bb.3:
70    INLINEASM &"", 1
71    $sp = t2LDMIA_RET $sp, 14, $noreg, def $r4, def $pc
72
73  bb.4.l_yes (address-taken):
74    $sp = t2LDMIA_RET $sp, 14, $noreg, def $r4, def $pc
75
76...
77