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
|
; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s
declare void @llvm.eh.return.i32(i32, i8*)
declare void @foo(...)
define i8* @f1(i32 %offset, i8* %handler) {
entry:
call void (...)* @foo()
call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
unreachable
; CHECK: f1
; CHECK: addiu $sp, $sp, -[[spoffset:[0-9]+]]
; check that $a0-$a3 are saved on stack.
; CHECK: sw $4, [[offset0:[0-9]+]]($sp)
; CHECK: sw $5, [[offset1:[0-9]+]]($sp)
; CHECK: sw $6, [[offset2:[0-9]+]]($sp)
; CHECK: sw $7, [[offset3:[0-9]+]]($sp)
; check that .cfi_offset directives are emitted for $a0-$a3.
; CHECK: .cfi_offset 4,
; CHECK: .cfi_offset 5,
; CHECK: .cfi_offset 6,
; CHECK: .cfi_offset 7,
; check that stack adjustment and handler are put in $v1 and $v0.
; CHECK: move $[[R0:[a-z0-9]+]], $5
; CHECK: move $[[R1:[a-z0-9]+]], $4
; CHECK: move $3, $[[R1]]
; CHECK: move $2, $[[R0]]
; check that $a0-$a3 are restored from stack.
; CHECK: lw $4, [[offset0]]($sp)
; CHECK: lw $5, [[offset1]]($sp)
; CHECK: lw $6, [[offset2]]($sp)
; CHECK: lw $7, [[offset3]]($sp)
; check that stack is adjusted by $v1 and that code returns to address in $v0
; also check that $25 contains handler value
; CHECK: addiu $sp, $sp, [[spoffset]]
; CHECK: move $25, $2
; CHECK: move $ra, $2
; CHECK: jr $ra
; CHECK: addu $sp, $sp, $3
}
define i8* @f2(i32 %offset, i8* %handler) {
entry:
call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
unreachable
; CHECK: f2
; CHECK: addiu $sp, $sp, -[[spoffset:[0-9]+]]
; check that $a0-$a3 are saved on stack.
; CHECK: sw $4, [[offset0:[0-9]+]]($sp)
; CHECK: sw $5, [[offset1:[0-9]+]]($sp)
; CHECK: sw $6, [[offset2:[0-9]+]]($sp)
; CHECK: sw $7, [[offset3:[0-9]+]]($sp)
; check that .cfi_offset directives are emitted for $a0-$a3.
; CHECK: .cfi_offset 4,
; CHECK: .cfi_offset 5,
; CHECK: .cfi_offset 6,
; CHECK: .cfi_offset 7,
; check that stack adjustment and handler are put in $v1 and $v0.
; CHECK: move $3, $4
; CHECK: move $2, $5
; check that $a0-$a3 are restored from stack.
; CHECK: lw $4, [[offset0]]($sp)
; CHECK: lw $5, [[offset1]]($sp)
; CHECK: lw $6, [[offset2]]($sp)
; CHECK: lw $7, [[offset3]]($sp)
; check that stack is adjusted by $v1 and that code returns to address in $v0
; also check that $25 contains handler value
; CHECK: addiu $sp, $sp, [[spoffset]]
; CHECK: move $25, $2
; CHECK: move $ra, $2
; CHECK: jr $ra
; CHECK: addu $sp, $sp, $3
}
|
