win64_eh.ll
4.37 KB
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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-windows-itanium | FileCheck %s -check-prefix=WIN64 -check-prefix=NORM
; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=WIN64 -check-prefix=NORM
; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-mingw32 -mcpu=atom | FileCheck %s -check-prefix=WIN64 -check-prefix=ATOM
; Check function without prolog
define void @foo0() uwtable {
entry:
ret void
}
; WIN64-LABEL: foo0:
; WIN64-NOT: .seh_proc foo0
; WIN64-NOT: .seh_endprologue
; WIN64: ret
; WIN64-NOT: .seh_endproc
; Checks a small stack allocation
define void @foo1() uwtable {
entry:
%baz = alloca [2000 x i16], align 2
ret void
}
; WIN64-LABEL: foo1:
; WIN64: .seh_proc foo1
; NORM: subq $4000, %rsp
; ATOM: leaq -4000(%rsp), %rsp
; WIN64: .seh_stackalloc 4000
; WIN64: .seh_endprologue
; WIN64: addq $4000, %rsp
; WIN64: ret
; WIN64: .seh_endproc
; Checks a stack allocation requiring call to __chkstk/___chkstk_ms
define void @foo2() uwtable {
entry:
%baz = alloca [4000 x i16], align 2
ret void
}
; WIN64-LABEL: foo2:
; WIN64: .seh_proc foo2
; WIN64: movl $8000, %eax
; WIN64: callq {{__chkstk|___chkstk_ms}}
; WIN64: subq %rax, %rsp
; WIN64: .seh_stackalloc 8000
; WIN64: .seh_endprologue
; WIN64: addq $8000, %rsp
; WIN64: ret
; WIN64: .seh_endproc
define i32 @foo3(i32 %f_arg, i32 %e_arg, i32 %d_arg, i32 %c_arg, i32 %b_arg, i32 %a_arg) uwtable {
entry:
%a = alloca i32
%b = alloca i32
%c = alloca i32
%d = alloca i32
%e = alloca i32
%f = alloca i32
store i32 %a_arg, i32* %a
store i32 %b_arg, i32* %b
store i32 %c_arg, i32* %c
store i32 %d_arg, i32* %d
store i32 %e_arg, i32* %e
store i32 %f_arg, i32* %f
%tmp = load i32, i32* %a
%tmp1 = mul i32 %tmp, 2
%tmp2 = load i32, i32* %b
%tmp3 = mul i32 %tmp2, 3
%tmp4 = add i32 %tmp1, %tmp3
%tmp5 = load i32, i32* %c
%tmp6 = mul i32 %tmp5, 5
%tmp7 = add i32 %tmp4, %tmp6
%tmp8 = load i32, i32* %d
%tmp9 = mul i32 %tmp8, 7
%tmp10 = add i32 %tmp7, %tmp9
%tmp11 = load i32, i32* %e
%tmp12 = mul i32 %tmp11, 11
%tmp13 = add i32 %tmp10, %tmp12
%tmp14 = load i32, i32* %f
%tmp15 = mul i32 %tmp14, 13
%tmp16 = add i32 %tmp13, %tmp15
ret i32 %tmp16
}
; WIN64-LABEL: foo3:
; WIN64: .seh_proc foo3
; NORM: subq $16, %rsp
; ATOM: leaq -16(%rsp), %rsp
; WIN64: .seh_stackalloc 16
; WIN64: .seh_endprologue
; WIN64: addq $16, %rsp
; WIN64: ret
; WIN64: .seh_endproc
; Check emission of eh handler and handler data
declare i32 @_d_eh_personality(i32, i32, i64, i8*, i8*)
declare void @_d_eh_resume_unwind(i8*)
declare i32 @bar()
define i32 @foo4() #0 personality i32 (i32, i32, i64, i8*, i8*)* @_d_eh_personality {
entry:
%step = alloca i32, align 4
store i32 0, i32* %step
%tmp = load i32, i32* %step
%tmp1 = invoke i32 @bar()
to label %finally unwind label %landingpad
finally:
store i32 1, i32* %step
br label %endtryfinally
landingpad:
%landing_pad = landingpad { i8*, i32 }
cleanup
%tmp3 = extractvalue { i8*, i32 } %landing_pad, 0
store i32 2, i32* %step
call void @_d_eh_resume_unwind(i8* %tmp3)
unreachable
endtryfinally:
%tmp10 = load i32, i32* %step
ret i32 %tmp10
}
; WIN64-LABEL: foo4:
; WIN64: .seh_proc foo4
; WIN64: .seh_handler _d_eh_personality, @unwind, @except
; NORM: subq $40, %rsp
; ATOM: leaq -40(%rsp), %rsp
; WIN64: .seh_stackalloc 40
; WIN64: .seh_endprologue
; WIN64: addq $40, %rsp
; WIN64: ret
; WIN64: .seh_handlerdata
; WIN64: .seh_endproc
; Check stack re-alignment and xmm spilling
define void @foo5() uwtable {
entry:
%s = alloca i32, align 64
call void asm sideeffect "", "~{rbx},~{rdi},~{xmm6},~{xmm7}"()
ret void
}
; WIN64-LABEL: foo5:
; WIN64: .seh_proc foo5
; WIN64: pushq %rbp
; WIN64: .seh_pushreg %rbp
; WIN64: pushq %rdi
; WIN64: .seh_pushreg %rdi
; WIN64: pushq %rbx
; WIN64: .seh_pushreg %rbx
; NORM: subq $96, %rsp
; ATOM: leaq -96(%rsp), %rsp
; WIN64: .seh_stackalloc 96
; WIN64: leaq 96(%rsp), %rbp
; WIN64: .seh_setframe %rbp, 96
; WIN64: movaps %xmm7, -16(%rbp) # 16-byte Spill
; WIN64: .seh_savexmm %xmm7, 80
; WIN64: movaps %xmm6, -32(%rbp) # 16-byte Spill
; WIN64: .seh_savexmm %xmm6, 64
; WIN64: .seh_endprologue
; WIN64: andq $-64, %rsp
; WIN64: movaps -32(%rbp), %xmm6 # 16-byte Reload
; WIN64: movaps -16(%rbp), %xmm7 # 16-byte Reload
; WIN64: movq %rbp, %rsp
; WIN64: popq %rbx
; WIN64: popq %rdi
; WIN64: popq %rbp
; WIN64: retq
; WIN64: .seh_endproc