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
|
; RUN: llc --march=mips64 -mcpu=mips64r2 < %s | FileCheck %s
; Generated from the C program:
;
; #include <stdio.h>
; #include <string.h>
;
; struct SmallStruct_1b1s {
; char x1;
; short x2;
; };
;
; struct SmallStruct_1b1i {
; char x1;
; int x2;
; };
;
; struct SmallStruct_1b1s1b {
; char x1;
; short x2;
; char x3;
; };
;
; struct SmallStruct_1s1i {
; short x1;
; int x2;
; };
;
; struct SmallStruct_3b1s {
; char x1;
; char x2;
; char x3;
; short x4;
; };
;
; void varArgF_SmallStruct(char* c, ...);
;
; void smallStruct_1b1s(struct SmallStruct_1b1s* ss)
; {
; varArgF_SmallStruct("", *ss);
; }
;
; void smallStruct_1b1i(struct SmallStruct_1b1i* ss)
; {
; varArgF_SmallStruct("", *ss);
; }
;
; void smallStruct_1b1s1b(struct SmallStruct_1b1s1b* ss)
; {
; varArgF_SmallStruct("", *ss);
; }
;
; void smallStruct_1s1i(struct SmallStruct_1s1i* ss)
; {
; varArgF_SmallStruct("", *ss);
; }
;
; void smallStruct_3b1s(struct SmallStruct_3b1s* ss)
; {
; varArgF_SmallStruct("", *ss);
; }
%struct.SmallStruct_1b1s = type { i8, i16 }
%struct.SmallStruct_1b1i = type { i8, i32 }
%struct.SmallStruct_1b1s1b = type { i8, i16, i8 }
%struct.SmallStruct_1s1i = type { i16, i32 }
%struct.SmallStruct_3b1s = type { i8, i8, i8, i16 }
@.str = private unnamed_addr constant [3 x i8] c"01\00", align 1
declare void @varArgF_SmallStruct(i8* %c, ...)
define void @smallStruct_1b1s(%struct.SmallStruct_1b1s* %ss) #0 {
entry:
%ss.addr = alloca %struct.SmallStruct_1b1s*, align 8
store %struct.SmallStruct_1b1s* %ss, %struct.SmallStruct_1b1s** %ss.addr, align 8
%0 = load %struct.SmallStruct_1b1s** %ss.addr, align 8
%1 = bitcast %struct.SmallStruct_1b1s* %0 to { i32 }*
%2 = getelementptr { i32 }* %1, i32 0, i32 0
%3 = load i32* %2, align 1
call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i32 inreg %3)
ret void
; CHECK-LABEL: smallStruct_1b1s:
; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 32
}
define void @smallStruct_1b1i(%struct.SmallStruct_1b1i* %ss) #0 {
entry:
%ss.addr = alloca %struct.SmallStruct_1b1i*, align 8
store %struct.SmallStruct_1b1i* %ss, %struct.SmallStruct_1b1i** %ss.addr, align 8
%0 = load %struct.SmallStruct_1b1i** %ss.addr, align 8
%1 = bitcast %struct.SmallStruct_1b1i* %0 to { i64 }*
%2 = getelementptr { i64 }* %1, i32 0, i32 0
%3 = load i64* %2, align 1
call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
ret void
; CHECK-LABEL: smallStruct_1b1i:
; CHECK-NOT: dsll
}
define void @smallStruct_1b1s1b(%struct.SmallStruct_1b1s1b* %ss) #0 {
entry:
%ss.addr = alloca %struct.SmallStruct_1b1s1b*, align 8
%.coerce = alloca { i48 }
store %struct.SmallStruct_1b1s1b* %ss, %struct.SmallStruct_1b1s1b** %ss.addr, align 8
%0 = load %struct.SmallStruct_1b1s1b** %ss.addr, align 8
%1 = bitcast { i48 }* %.coerce to i8*
%2 = bitcast %struct.SmallStruct_1b1s1b* %0 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 6, i32 0, i1 false)
%3 = getelementptr { i48 }* %.coerce, i32 0, i32 0
%4 = load i48* %3, align 1
call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
ret void
; CHECK-LABEL: smallStruct_1b1s1b:
; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 16
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #1
define void @smallStruct_1s1i(%struct.SmallStruct_1s1i* %ss) #0 {
entry:
%ss.addr = alloca %struct.SmallStruct_1s1i*, align 8
store %struct.SmallStruct_1s1i* %ss, %struct.SmallStruct_1s1i** %ss.addr, align 8
%0 = load %struct.SmallStruct_1s1i** %ss.addr, align 8
%1 = bitcast %struct.SmallStruct_1s1i* %0 to { i64 }*
%2 = getelementptr { i64 }* %1, i32 0, i32 0
%3 = load i64* %2, align 1
call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
ret void
; CHECK-LABEL: smallStruct_1s1i:
; CHECK-NOT: dsll
}
define void @smallStruct_3b1s(%struct.SmallStruct_3b1s* %ss) #0 {
entry:
%ss.addr = alloca %struct.SmallStruct_3b1s*, align 8
%.coerce = alloca { i48 }
store %struct.SmallStruct_3b1s* %ss, %struct.SmallStruct_3b1s** %ss.addr, align 8
%0 = load %struct.SmallStruct_3b1s** %ss.addr, align 8
%1 = bitcast { i48 }* %.coerce to i8*
%2 = bitcast %struct.SmallStruct_3b1s* %0 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 6, i32 0, i1 false)
%3 = getelementptr { i48 }* %.coerce, i32 0, i32 0
%4 = load i48* %3, align 1
call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
ret void
; CHECK-LABEL: smallStruct_3b1s:
; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 16
}
|
