1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -o - -run-pass=block-placement -mcpu=gfx1010 -mattr=-inst-fwd-prefetch-bug -verify-machineinstrs %s | FileCheck -check-prefix=GCN %s
# Used to fail with
# Assertion `Out && "Header of loop has no predecessors from outside loop?"
---
name: loop_header_nopred
body: |
; GCN-LABEL: name: loop_header_nopred
; GCN: bb.0:
; GCN: successors: %bb.2(0x40000000), %bb.3(0x40000000)
; GCN: S_CBRANCH_VCCZ %bb.3, implicit $vcc
; GCN: S_BRANCH %bb.2
; GCN: bb.6 (align 64):
; GCN: successors: %bb.7(0x04000000), %bb.1(0x7c000000)
; GCN: S_CBRANCH_VCCNZ %bb.7, implicit $vcc
; GCN: bb.1:
; GCN: successors: %bb.2(0x40000000), %bb.3(0x40000000)
; GCN: S_CBRANCH_VCCNZ %bb.2, implicit $vcc
; GCN: bb.3:
; GCN: successors: %bb.4(0x40000000), %bb.6(0x40000000)
; GCN: SI_MASK_BRANCH %bb.6, implicit $exec
; GCN: S_BRANCH %bb.4
; GCN: bb.2 (align 64):
; GCN: successors: %bb.4(0x40000000), %bb.6(0x40000000)
; GCN: SI_MASK_BRANCH %bb.6, implicit $exec
; GCN: S_BRANCH %bb.4
; GCN: bb.4:
; GCN: successors: %bb.5(0x04000000), %bb.4(0x7c000000)
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_NOP 0
; GCN: S_CBRANCH_EXECZ %bb.4, implicit $exec
; GCN: bb.5:
; GCN: successors: %bb.6(0x80000000)
; GCN: S_BRANCH %bb.6
; GCN: bb.7:
; GCN: S_ENDPGM 0
bb.0:
successors: %bb.1(0x80000000)
bb.1:
successors: %bb.2(0x40000000), %bb.3(0x40000000)
S_CBRANCH_VCCZ %bb.3, implicit $vcc
S_BRANCH %bb.2
bb.2:
successors: %bb.3(0x80000000)
bb.3:
successors: %bb.4(0x40000000), %bb.6(0x40000000)
SI_MASK_BRANCH %bb.6, implicit $exec
S_BRANCH %bb.4
bb.4:
successors: %bb.5(0x04000000), %bb.4(0x7c000000)
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_NOP 0
S_CBRANCH_EXECZ %bb.4, implicit $exec
bb.5:
successors: %bb.6(0x80000000)
bb.6:
successors: %bb.7(0x04000000), %bb.1(0x7c000000)
S_CBRANCH_VCCZ %bb.1, implicit $vcc
bb.7:
S_ENDPGM 0
...
|