| blob | 3fe6330d9ae9e58814e2a4d2d099bc0263d38311 |
1 ; RUN: llc -O1 -filetype=obj -mtriple=x86_64-apple-darwin < %s > %t
2 ; RUN: llvm-dwarfdump -v %t | FileCheck %s --check-prefixes=CHECK,DWARFv4
3 ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=DARWIN %s
5 ; RUN: llc -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t
6 ; RUN: llvm-dwarfdump -v %t | FileCheck %s --check-prefixes=CHECK,DWARFv4
7 ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s
9 ; RUN: llc -dwarf-version=3 -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t
10 ; RUN: llvm-dwarfdump -debug-info -v %t | FileCheck %s --check-prefixes=CHECK,DWARF32v3
11 ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s
13 ; RUN: llc -dwarf64 -dwarf-version=3 -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t
14 ; RUN: llvm-dwarfdump -debug-info -v %t | FileCheck %s --check-prefixes=CHECK,DWARF64v3
15 ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s
17 ; PR9493
18 ; Adapted from the original test case in r127757.
19 ; We use 'llc -O1' to induce variable 'x' to live in different locations.
20 ; We don't actually care where 'x' lives, or what exact optimizations get
21 ; used, as long as 'x' moves around we're fine.
23 ; // The variable 'x' lives in different locations, so it needs an entry in
24 ; // the .debug_loc table section, referenced by DW_AT_location.
25 ; // This ref is not relocatable on Darwin, and is relocatable elsewhere.
26 ; extern int g(int, int);
27 ; extern int a;
28 ;
29 ; void f(void) {
30 ; int x;
31 ; a = g(0, 0);
32 ; x = 1;
33 ; while (x & 1) { x *= a; }
34 ; a = g(x, 0);
35 ; x = 2;
36 ; while (x & 2) { x *= a; }
37 ; a = g(0, x);
38 ; }
40 ; // The 'x' variable and its symbol reference location
41 ; CHECK: .debug_info contents:
42 ; CHECK: DW_TAG_variable
43 ; DWARF32v3-NEXT: DW_AT_location [DW_FORM_data4] (0x00000000
44 ; DWARF64v3-NEXT: DW_AT_location [DW_FORM_data8] (0x00000000
45 ; DWARFv4-NEXT: DW_AT_location [DW_FORM_sec_offset] (0x00000000
46 ; Check that the location contains only 4 ranges.
47 ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}})
48 ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}})
49 ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}})
50 ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}}){{.*}})
51 ; CHECK-NEXT: DW_AT_name {{.*}} "x"
52 ; CHECK-NEXT: DW_AT_decl_file
53 ; CHECK-NEXT: DW_AT_decl_line
54 ; CHECK-NEXT: DW_AT_type
56 ; Check that we have no relocations in Darwin's output.
57 ; DARWIN-NOT: X86_64_RELOC{{.*}} __debug_loc
59 ; Check we have a relocation for the debug_loc entry in Linux output.
60 ; LINUX: RELOCATION RECORDS FOR [.debug_info]
61 ; LINUX-NOT: RELOCATION RECORDS
62 ; LINUX: R_X86_64{{.*}} .debug_loc
64 ; ModuleID = 'simple.c'
65 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32"
67 @a = external global i32
69 define void @f() nounwind !dbg !0 {
70 entry:
71 %call = tail call i32 @g(i32 0, i32 0) nounwind, !dbg !8
72 store i32 %call, i32* @a, align 4, !dbg !8
73 tail call void @llvm.dbg.value(metadata i32 1, metadata !5, metadata !DIExpression()), !dbg !13
74 br label %while.body
76 while.body: ; preds = %entry, %while.body
77 %x.017 = phi i32 [ 1, %entry ], [ %mul, %while.body ]
78 %mul = mul nsw i32 %call, %x.017, !dbg !14
79 %and = and i32 %mul, 1, !dbg !14
80 %tobool = icmp eq i32 %and, 0, !dbg !14
81 br i1 %tobool, label %while.end, label %while.body, !dbg !14
83 while.end: ; preds = %while.body
84 tail call void @llvm.dbg.value(metadata i32 %mul, metadata !5, metadata !DIExpression()), !dbg !14
85 %call4 = tail call i32 @g(i32 %mul, i32 0) nounwind, !dbg !15
86 store i32 %call4, i32* @a, align 4, !dbg !15
87 tail call void @llvm.dbg.value(metadata i32 2, metadata !5, metadata !DIExpression()), !dbg !17
88 br label %while.body9
90 while.body9: ; preds = %while.end, %while.body9
91 %x.116 = phi i32 [ 2, %while.end ], [ %mul12, %while.body9 ]
92 %mul12 = mul nsw i32 %call4, %x.116, !dbg !18
93 %and7 = and i32 %mul12, 2, !dbg !18
94 %tobool8 = icmp eq i32 %and7, 0, !dbg !18
95 br i1 %tobool8, label %while.end13, label %while.body9, !dbg !18
97 while.end13: ; preds = %while.body9
98 tail call void @llvm.dbg.value(metadata i32 %mul12, metadata !5, metadata !DIExpression()), !dbg !18
99 %call15 = tail call i32 @g(i32 0, i32 %mul12) nounwind, !dbg !19
100 store i32 %call15, i32* @a, align 4, !dbg !19
101 ret void, !dbg !20
102 }
104 declare i32 @g(i32, i32)
106 declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
108 !llvm.dbg.cu = !{!2}
109 !llvm.module.flags = !{!24}
111 !0 = distinct !DISubprogram(name: "f", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 4, file: !23, scope: !1, type: !3, retainedNodes: !22)
112 !1 = !DIFile(filename: "simple.c", directory: "/home/rengol01/temp/tests/dwarf/relocation")
113 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk)", isOptimized: true, emissionKind: FullDebug, file: !23, enums: !{}, retainedTypes: !{}, imports: null)
114 !3 = !DISubroutineType(types: !4)
115 !4 = !{null}
116 !5 = !DILocalVariable(name: "x", line: 5, scope: !6, file: !1, type: !7)
117 !6 = distinct !DILexicalBlock(line: 4, column: 14, file: !23, scope: !0)
118 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
119 !8 = !DILocation(line: 6, column: 3, scope: !6)
120 !12 = !{i32 1}
121 !13 = !DILocation(line: 7, column: 3, scope: !6)
122 !14 = !DILocation(line: 8, column: 3, scope: !6)
123 !15 = !DILocation(line: 9, column: 3, scope: !6)
124 !16 = !{i32 2}
125 !17 = !DILocation(line: 10, column: 3, scope: !6)
126 !18 = !DILocation(line: 11, column: 3, scope: !6)
127 !19 = !DILocation(line: 12, column: 3, scope: !6)
128 !20 = !DILocation(line: 13, column: 1, scope: !6)
129 !22 = !{!5}
130 !23 = !DIFile(filename: "simple.c", directory: "/home/rengol01/temp/tests/dwarf/relocation")
131 !24 = !{i32 1, !"Debug Info Version", i32 3}