| blob | ed6e9eaf3eb517b3a1edbc12578db92d275600f2 |
1 ; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
2 ; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
4 ; Source code:
5 ; static volatile char a = 3;
6 ; int foo() {
7 ; static volatile short b = 4;
8 ; return a + b;
9 ; }
10 ; Compilation flag:
11 ; clang -target bpf -O2 -g -S -emit-llvm test.c
13 @foo.b = internal global i16 4, align 2, !dbg !0
14 @a = internal global i8 3, align 1, !dbg !10
16 ; Function Attrs: norecurse nounwind
17 define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
18 %1 = load volatile i8, i8* @a, align 1, !dbg !20, !tbaa !21
19 %2 = sext i8 %1 to i32, !dbg !20
20 %3 = load volatile i16, i16* @foo.b, align 2, !dbg !24, !tbaa !25
21 %4 = sext i16 %3 to i32, !dbg !24
22 %5 = add nsw i32 %4, %2, !dbg !27
23 ret i32 %5, !dbg !28
24 }
26 ; CHECK: .section .BTF,"",@progbits
27 ; CHECK-NEXT: .short 60319 # 0xeb9f
28 ; CHECK-NEXT: .byte 1
29 ; CHECK-NEXT: .byte 0
30 ; CHECK-NEXT: .long 24
31 ; CHECK-NEXT: .long 0
32 ; CHECK-NEXT: .long 164
33 ; CHECK-NEXT: .long 164
34 ; CHECK-NEXT: .long 77
35 ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
36 ; CHECK-NEXT: .long 218103808 # 0xd000000
37 ; CHECK-NEXT: .long 2
38 ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
39 ; CHECK-NEXT: .long 16777216 # 0x1000000
40 ; CHECK-NEXT: .long 4
41 ; CHECK-NEXT: .long 16777248 # 0x1000020
42 ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
43 ; CHECK-NEXT: .long 201326592 # 0xc000000
44 ; CHECK-NEXT: .long 1
45 ; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
46 ; CHECK-NEXT: .long 150994944 # 0x9000000
47 ; CHECK-NEXT: .long 5
48 ; CHECK-NEXT: .long 52 # BTF_KIND_INT(id = 5)
49 ; CHECK-NEXT: .long 16777216 # 0x1000000
50 ; CHECK-NEXT: .long 2
51 ; CHECK-NEXT: .long 16777232 # 0x1000010
52 ; CHECK-NEXT: .long 58 # BTF_KIND_VAR(id = 6)
53 ; CHECK-NEXT: .long 234881024 # 0xe000000
54 ; CHECK-NEXT: .long 4
55 ; CHECK-NEXT: .long 0
56 ; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 7)
57 ; CHECK-NEXT: .long 150994944 # 0x9000000
58 ; CHECK-NEXT: .long 8
59 ; CHECK-NEXT: .long 64 # BTF_KIND_INT(id = 8)
60 ; CHECK-NEXT: .long 16777216 # 0x1000000
61 ; CHECK-NEXT: .long 1
62 ; CHECK-NEXT: .long 16777224 # 0x1000008
63 ; CHECK-NEXT: .long 69 # BTF_KIND_VAR(id = 9)
64 ; CHECK-NEXT: .long 234881024 # 0xe000000
65 ; CHECK-NEXT: .long 7
66 ; CHECK-NEXT: .long 0
67 ; CHECK-NEXT: .long 71 # BTF_KIND_DATASEC(id = 10)
68 ; CHECK-NEXT: .long 251658242 # 0xf000002
69 ; CHECK-NEXT: .long 0
70 ; CHECK-NEXT: .long 6
71 ; CHECK-NEXT: .long foo.b
72 ; CHECK-NEXT: .long 2
73 ; CHECK-NEXT: .long 9
74 ; CHECK-NEXT: .long a
75 ; CHECK-NEXT: .long 1
76 ; CHECK-NEXT: .byte 0 # string offset=0
77 ; CHECK-NEXT: .ascii "int" # string offset=1
78 ; CHECK-NEXT: .byte 0
79 ; CHECK-NEXT: .ascii "foo" # string offset=5
80 ; CHECK-NEXT: .byte 0
81 ; CHECK-NEXT: .ascii ".text" # string offset=9
82 ; CHECK-NEXT: .byte 0
83 ; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bug/test.c" # string offset=15
84 ; CHECK-NEXT: .byte 0
85 ; CHECK-NEXT: .ascii "short" # string offset=52
86 ; CHECK-NEXT: .byte 0
87 ; CHECK-NEXT: .ascii "foo.b" # string offset=58
88 ; CHECK-NEXT: .byte 0
89 ; CHECK-NEXT: .ascii "char" # string offset=64
90 ; CHECK-NEXT: .byte 0
91 ; CHECK-NEXT: .byte 97 # string offset=69
92 ; CHECK-NEXT: .byte 0
93 ; CHECK-NEXT: .ascii ".data" # string offset=71
94 ; CHECK-NEXT: .byte 0
96 attributes #0 = { norecurse nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
98 !llvm.dbg.cu = !{!7}
99 !llvm.module.flags = !{!16, !17, !18}
100 !llvm.ident = !{!19}
102 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
103 !1 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 3, type: !14, isLocal: true, isDefinition: true)
104 !2 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 2, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !7, retainedNodes: !8)
105 !3 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bug")
106 !4 = !DISubroutineType(types: !5)
107 !5 = !{!6}
108 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
109 !7 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.20181009 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !8, globals: !9, nameTableKind: None)
110 !8 = !{}
111 !9 = !{!0, !10}
112 !10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression())
113 !11 = distinct !DIGlobalVariable(name: "a", scope: !7, file: !3, line: 1, type: !12, isLocal: true, isDefinition: true)
114 !12 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !13)
115 !13 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
116 !14 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !15)
117 !15 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)
118 !16 = !{i32 2, !"Dwarf Version", i32 4}
119 !17 = !{i32 2, !"Debug Info Version", i32 3}
120 !18 = !{i32 1, !"wchar_size", i32 4}
121 !19 = !{!"clang version 8.0.20181009 "}
122 !20 = !DILocation(line: 4, column: 10, scope: !2)
123 !21 = !{!22, !22, i64 0}
124 !22 = !{!"omnipotent char", !23, i64 0}
125 !23 = !{!"Simple C/C++ TBAA"}
126 !24 = !DILocation(line: 4, column: 14, scope: !2)
127 !25 = !{!26, !26, i64 0}
128 !26 = !{!"short", !22, i64 0}
129 !27 = !DILocation(line: 4, column: 12, scope: !2)
130 !28 = !DILocation(line: 4, column: 3, scope: !2)