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
|
; Test how we handle eliding inttoptr instructions.
; RUN: llvm-as < %s | pnacl-freeze \
; RUN: | pnacl-bcanalyzer -dump-records \
; RUN: | FileCheck %s -check-prefix=PF2
; RUN: llvm-as < %s | pnacl-freeze | pnacl-thaw \
; RUN: | llvm-dis - | FileCheck %s -check-prefix=TD2
; ------------------------------------------------------
; Test that we elide the simple case of inttoptr of a load.
define void @SimpleLoad(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
ret void
}
; TD2: define void @SimpleLoad(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: ret void
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_LOAD op0=1 op1=3 op2=0/>
; PF2-NEXT: <INST_RET/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test that we can handle multiple inttoptr of loads.
define i32 @TwoLoads(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
%3 = inttoptr i32 %i to i32*
%4 = load i32* %3, align 4
%5 = add i32 %2, %4
ret i32 %5
}
; TD2: define i32 @TwoLoads(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: %3 = load i32* %1, align 4
; TD2-NEXT: %4 = add i32 %2, %3
; TD2-NEXT: ret i32 %4
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_LOAD op0=1 op1=3 op2=0/>
; PF2-NEXT: <INST_LOAD op0=2 op1=3 op2=0/>
; PF2-NEXT: <INST_BINOP op0=2 op1=1 op2=0/>
; PF2-NEXT: <INST_RET op0=1/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test how we handle inttoptrs, if optimized in the input file. This
; case tests within a single block.
define i32 @TwoLoadOptOneBlock(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
%3 = load i32* %1, align 4
%4 = add i32 %2, %3
ret i32 %4
}
; TD2: define i32 @TwoLoadOptOneBlock(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: %3 = load i32* %1, align 4
; TD2-NEXT: %4 = add i32 %2, %3
; TD2-NEXT: ret i32 %4
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_LOAD op0=1 op1=3 op2=0/>
; PF2-NEXT: <INST_LOAD op0=2 op1=3 op2=0/>
; PF2-NEXT: <INST_BINOP op0=2 op1=1 op2=0/>
; PF2-NEXT: <INST_RET op0=1/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test how we handle inttoptrs if optimized in the input file. This
; case tests accross blocks.
define i32 @TwoLoadOptTwoBlocks(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
%3 = load i32* %1, align 4
%4 = add i32 %2, %3
br label %BB
BB:
%5 = load i32* %1, align 4
%6 = load i32* %1, align 4
%7 = add i32 %5, %6
ret i32 %7
}
; TD2: define i32 @TwoLoadOptTwoBlocks(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: %3 = load i32* %1, align 4
; TD2-NEXT: %4 = add i32 %2, %3
; TD2-NEXT: br label %BB
; TD2: BB:
; TD2-NEXT: %5 = inttoptr i32 %i to i32*
; TD2-NEXT: %6 = load i32* %5, align 4
; TD2-NEXT: %7 = load i32* %5, align 4
; TD2-NEXT: %8 = add i32 %6, %7
; TD2-NEXT: ret i32 %8
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK>
; PF2-NEXT: <DECLAREBLOCKS op0=2/>
; PF2-NEXT: <INST_LOAD op0=1 op1=3 op2=0/>
; PF2-NEXT: <INST_LOAD op0=2 op1=3 op2=0/>
; PF2-NEXT: <INST_BINOP op0=2 op1=1 op2=0/>
; PF2-NEXT: <INST_BR op0=1/>
; PF2-NEXT: <INST_LOAD op0=4 op1=3 op2=0/>
; PF2-NEXT: <INST_LOAD op0=5 op1=3 op2=0/>
; PF2-NEXT: <INST_BINOP op0=2 op1=1 op2=0/>
; PF2-NEXT: <INST_RET op0=1/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test that we elide the simple case of inttoptr for a store.
define void @SimpleStore(i32 %i) {
%1 = inttoptr i32 %i to i32*
store i32 %i, i32* %1, align 4
ret void
}
; TD2: define void @SimpleStore(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: store i32 %i, i32* %1, align 4
; TD2-NEXT: ret void
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_STORE op0=1 op1=1 op2=3/>
; PF2-NEXT: <INST_RET/>
; PF2: </FUNCTION_BLOCK>
|
