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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
; RUN: llc -march=hexagon -mcpu=hexagonv62 -mtriple=hexagon-unknown-linux-musl -O0 < %s | FileCheck %s
; CHECK-LABEL: foo:
; Check Function prologue.
; Note. All register numbers and offset are fixed.
; Hence, no need of regular expression.
; CHECK: r29 = add(r29,#-24)
; CHECK: r7:6 = memd(r29+#24)
; CHECK: memd(r29+#0) = r7:6
; CHECK: r7:6 = memd(r29+#32)
; CHECK: memd(r29+#8) = r7:6
; CHECK: r7:6 = memd(r29+#40)
; CHECK: memd(r29+#16) = r7:6
; CHECK: memw(r29+#28) = r1
; CHECK: memw(r29+#32) = r2
; CHECK: memw(r29+#36) = r3
; CHECK: memw(r29+#40) = r4
; CHECK: memw(r29+#44) = r5
; CHECK: r29 = add(r29,#24)
%struct.AAA = type { i32, i32, i32, i32 }
%struct.BBB = type { i8, i64, i32 }
%struct.__va_list_tag = type { i8*, i8*, i8* }
@aaa = global %struct.AAA { i32 100, i32 200, i32 300, i32 400 }, align 4
@ddd = global { i8, i64, i32, [4 x i8] } { i8 1, i64 1000000, i32 5, [4 x i8] undef }, align 8
@.str = private unnamed_addr constant [13 x i8] c"result = %d\0A\00", align 1
; Function Attrs: nounwind
define i32 @foo(i32 %xx, %struct.BBB* byval(%struct.BBB) align 8 %eee, ...) #0 {
entry:
%xx.addr = alloca i32, align 4
%ap = alloca [1 x %struct.__va_list_tag], align 8
%d = alloca i32, align 4
%k = alloca i64, align 8
%ret = alloca i32, align 4
%bbb = alloca %struct.AAA, align 4
store i32 %xx, i32* %xx.addr, align 4
store i32 0, i32* %ret, align 4
%x = getelementptr inbounds %struct.BBB, %struct.BBB* %eee, i32 0, i32 0
%0 = load i8, i8* %x, align 1
%tobool = trunc i8 %0 to i1
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
store i32 1, i32* %ret, align 4
br label %if.end
if.end: ; preds = %if.then, %entry
%arraydecay = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0
%arraydecay1 = bitcast %struct.__va_list_tag* %arraydecay to i8*
call void @llvm.va_start(i8* %arraydecay1)
%arraydecay2 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0
br label %vaarg.maybe_reg
vaarg.maybe_reg: ; preds = %if.end
%__current_saved_reg_area_pointer_p = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay2, i32 0, i32 0
%__current_saved_reg_area_pointer = load i8*, i8** %__current_saved_reg_area_pointer_p
%__saved_reg_area_end_pointer_p = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay2, i32 0, i32 1
%__saved_reg_area_end_pointer = load i8*, i8** %__saved_reg_area_end_pointer_p
%1 = ptrtoint i8* %__current_saved_reg_area_pointer to i32
%align_current_saved_reg_area_pointer = add i32 %1, 7
%align_current_saved_reg_area_pointer3 = and i32 %align_current_saved_reg_area_pointer, -8
%align_current_saved_reg_area_pointer4 = inttoptr i32 %align_current_saved_reg_area_pointer3 to i8*
%__new_saved_reg_area_pointer = getelementptr i8, i8* %align_current_saved_reg_area_pointer4, i32 8
%2 = icmp sgt i8* %__new_saved_reg_area_pointer, %__saved_reg_area_end_pointer
br i1 %2, label %vaarg.on_stack, label %vaarg.in_reg
vaarg.in_reg: ; preds = %vaarg.maybe_reg
%3 = bitcast i8* %align_current_saved_reg_area_pointer4 to i64*
store i8* %__new_saved_reg_area_pointer, i8** %__current_saved_reg_area_pointer_p
br label %vaarg.end
vaarg.on_stack: ; preds = %vaarg.maybe_reg
%__overflow_area_pointer_p = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay2, i32 0, i32 2
%__overflow_area_pointer = load i8*, i8** %__overflow_area_pointer_p
%4 = ptrtoint i8* %__overflow_area_pointer to i32
%align_overflow_area_pointer = add i32 %4, 7
%align_overflow_area_pointer5 = and i32 %align_overflow_area_pointer, -8
%align_overflow_area_pointer6 = inttoptr i32 %align_overflow_area_pointer5 to i8*
%__overflow_area_pointer.next = getelementptr i8, i8* %align_overflow_area_pointer6, i32 8
store i8* %__overflow_area_pointer.next, i8** %__overflow_area_pointer_p
store i8* %__overflow_area_pointer.next, i8** %__current_saved_reg_area_pointer_p
%5 = bitcast i8* %align_overflow_area_pointer6 to i64*
br label %vaarg.end
vaarg.end: ; preds = %vaarg.on_stack, %vaarg.in_reg
%vaarg.addr = phi i64* [ %3, %vaarg.in_reg ], [ %5, %vaarg.on_stack ]
%6 = load i64, i64* %vaarg.addr
store i64 %6, i64* %k, align 8
%7 = load i64, i64* %k, align 8
%conv = trunc i64 %7 to i32
%div = sdiv i32 %conv, 1000
%8 = load i32, i32* %ret, align 4
%add = add nsw i32 %8, %div
store i32 %add, i32* %ret, align 4
%arraydecay7 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0
%__overflow_area_pointer_p8 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay7, i32 0, i32 2
%__overflow_area_pointer9 = load i8*, i8** %__overflow_area_pointer_p8
%9 = bitcast i8* %__overflow_area_pointer9 to %struct.AAA*
%__overflow_area_pointer.next10 = getelementptr i8, i8* %__overflow_area_pointer9, i32 16
store i8* %__overflow_area_pointer.next10, i8** %__overflow_area_pointer_p8
%10 = bitcast %struct.AAA* %bbb to i8*
%11 = bitcast %struct.AAA* %9 to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %10, i8* %11, i32 16, i32 4, i1 false)
%d11 = getelementptr inbounds %struct.AAA, %struct.AAA* %bbb, i32 0, i32 3
%12 = load i32, i32* %d11, align 4
%13 = load i32, i32* %ret, align 4
%add12 = add nsw i32 %13, %12
store i32 %add12, i32* %ret, align 4
%arraydecay13 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0
br label %vaarg.maybe_reg14
vaarg.maybe_reg14: ; preds = %vaarg.end
%__current_saved_reg_area_pointer_p15 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay13, i32 0, i32 0
%__current_saved_reg_area_pointer16 = load i8*, i8** %__current_saved_reg_area_pointer_p15
%__saved_reg_area_end_pointer_p17 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay13, i32 0, i32 1
%__saved_reg_area_end_pointer18 = load i8*, i8** %__saved_reg_area_end_pointer_p17
%__new_saved_reg_area_pointer19 = getelementptr i8, i8* %__current_saved_reg_area_pointer16, i32 4
%14 = icmp sgt i8* %__new_saved_reg_area_pointer19, %__saved_reg_area_end_pointer18
br i1 %14, label %vaarg.on_stack21, label %vaarg.in_reg20
vaarg.in_reg20: ; preds = %vaarg.maybe_reg14
%15 = bitcast i8* %__current_saved_reg_area_pointer16 to i32*
store i8* %__new_saved_reg_area_pointer19, i8** %__current_saved_reg_area_pointer_p15
br label %vaarg.end25
vaarg.on_stack21: ; preds = %vaarg.maybe_reg14
%__overflow_area_pointer_p22 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay13, i32 0, i32 2
%__overflow_area_pointer23 = load i8*, i8** %__overflow_area_pointer_p22
%__overflow_area_pointer.next24 = getelementptr i8, i8* %__overflow_area_pointer23, i32 4
store i8* %__overflow_area_pointer.next24, i8** %__overflow_area_pointer_p22
store i8* %__overflow_area_pointer.next24, i8** %__current_saved_reg_area_pointer_p15
%16 = bitcast i8* %__overflow_area_pointer23 to i32*
br label %vaarg.end25
vaarg.end25: ; preds = %vaarg.on_stack21, %vaarg.in_reg20
%vaarg.addr26 = phi i32* [ %15, %vaarg.in_reg20 ], [ %16, %vaarg.on_stack21 ]
%17 = load i32, i32* %vaarg.addr26
store i32 %17, i32* %d, align 4
%18 = load i32, i32* %d, align 4
%19 = load i32, i32* %ret, align 4
%add27 = add nsw i32 %19, %18
store i32 %add27, i32* %ret, align 4
%arraydecay28 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0
%arraydecay2829 = bitcast %struct.__va_list_tag* %arraydecay28 to i8*
call void @llvm.va_end(i8* %arraydecay2829)
%20 = load i32, i32* %ret, align 4
ret i32 %20
}
; Function Attrs: nounwind
declare void @llvm.va_start(i8*) #1
; Function Attrs: nounwind
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1
; Function Attrs: nounwind
declare void @llvm.va_end(i8*) #1
; Function Attrs: nounwind
define i32 @main() #0 {
entry:
%retval = alloca i32, align 4
%x = alloca i32, align 4
%m = alloca i64, align 8
store i32 0, i32* %retval
store i64 1000000, i64* %m, align 8
%0 = load i64, i64* %m, align 8
%call = call i32 (i32, %struct.BBB*, ...) @foo(i32 1, %struct.BBB* byval(%struct.BBB) align 8 bitcast ({ i8, i64, i32, [4 x i8] }* @ddd to %struct.BBB*), i64 %0, %struct.AAA* byval(%struct.AAA) align 4 @aaa, i32 4)
store i32 %call, i32* %x, align 4
%1 = load i32, i32* %x, align 4
%call1 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i32 0, i32 0), i32 %1)
%2 = load i32, i32* %x, align 4
ret i32 %2
}
declare i32 @printf(i8*, ...) #2
attributes #1 = { nounwind }
!llvm.ident = !{!0}
!0 = !{!"Clang 3.1"}
|
