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
93
94
95
96
97
98
99
100
101
102
| # RUN: llc -march=mipsel -mattr=mips16 -relocation-model=pic -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses the call entry pseudo source
# values in memory operands correctly.
--- |
define i32 @test(i32 %a) {
entry:
%call = call i32 @foo(i32 %a)
ret i32 0
}
declare i32 @foo(i32)
define float @test2() #0 {
entry:
%call = tail call float bitcast (float (...)* @g to float ()*)()
call void @__mips16_ret_sf(float %call)
ret float %call
}
declare float @g(...)
declare void @__mips16_ret_sf(float) #1
attributes #0 = { "saveS2" }
attributes #1 = { noinline readnone "__Mips16RetHelper" }
...
---
name: test
tracksRegLiveness: true
liveins:
- { reg: '$a0' }
frameInfo:
stackSize: 24
maxAlignment: 4
adjustsStack: true
hasCalls: true
maxCallFrameSize: 16
stack:
- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4,
callee-saved-register: '$ra' }
body: |
bb.0.entry:
liveins: $a0, $ra
Save16 $ra, 24, implicit-def $sp, implicit $sp
CFI_INSTRUCTION def_cfa_offset 24
CFI_INSTRUCTION offset $ra_64, -4
$v0, $v1 = GotPrologue16 &_gp_disp, &_gp_disp
$v0 = SllX16 killed $v0, 16
$v0 = AdduRxRyRz16 killed $v1, killed $v0
; CHECK-LABEL: name: test
; CHECK: $v1 = LwRxRyOffMemX16 $v0, @foo :: (load 4 from call-entry @foo)
$v1 = LwRxRyOffMemX16 $v0, @foo :: (load 4 from call-entry @foo)
$t9 = COPY $v1
$gp = COPY killed $v0
JumpLinkReg16 killed $v1, csr_o32, implicit-def $ra, implicit killed $t9, implicit $a0, implicit killed $gp, implicit-def $sp, implicit-def dead $v0
$v0 = LiRxImmX16 0
$ra = Restore16 24, implicit-def $sp, implicit $sp
RetRA16 implicit $v0
...
---
name: test2
tracksRegLiveness: true
frameInfo:
stackSize: 32
maxAlignment: 4
adjustsStack: true
hasCalls: true
maxCallFrameSize: 16
stack:
- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4,
callee-saved-register: '$ra' }
- { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4,
callee-saved-register: '$s2' }
- { id: 2, type: spill-slot, offset: -12, size: 4, alignment: 4,
callee-saved-register: '$s0' }
body: |
bb.0.entry:
liveins: $ra, $s2, $s0, $ra, $s2, $s0
SaveX16 $s0, $ra, $s2, 32, implicit-def $sp, implicit $sp
CFI_INSTRUCTION def_cfa_offset 32
CFI_INSTRUCTION offset $ra_64, -4
CFI_INSTRUCTION offset $s2_64, -8
CFI_INSTRUCTION offset $s0_64, -12
$v0, $v1 = GotPrologue16 &_gp_disp, &_gp_disp
$v0 = SllX16 killed $v0, 16
$s0 = AdduRxRyRz16 killed $v1, killed $v0
$v0 = LwRxRyOffMemX16 $s0, @g :: (load 4 from call-entry @g)
; CHECK-LABEL: test2
; CHECK: $v1 = LwRxRyOffMemX16 $s0, &__mips16_call_stub_sf_0 :: (load 4 from call-entry &__mips16_call_stub_sf_0)
$v1 = LwRxRyOffMemX16 $s0, &__mips16_call_stub_sf_0 :: (load 4 from call-entry &__mips16_call_stub_sf_0)
$gp = COPY $s0
JumpLinkReg16 killed $v1, csr_o32, implicit-def $ra, implicit $v0, implicit killed $gp, implicit-def $sp, implicit-def $v0
$v1 = LwRxRyOffMemX16 $s0, @__mips16_ret_sf :: (load 4 from call-entry @__mips16_ret_sf)
$t9 = COPY $v1
$gp = COPY killed $s0
JumpLinkReg16 killed $v1, csr_mips16rethelper, implicit-def $ra, implicit killed $t9, implicit $v0, implicit killed $gp, implicit-def $sp
$s0, $ra, $s2 = RestoreX16 32, implicit-def $sp, implicit $sp
RetRA16 implicit $v0
...
|