| blob | 96e8a5d864cd024cccf48d4431134de8a1bb3ae3 |
1 # Test call site parameter encoding in DWARFv4.
2 # When the debugger tuning is set to gdb, use GNU opcodes.
3 # For lldb, use the standard DWARF5 opcodes.
5 # RUN: llc -debug-entry-values -debugger-tune=gdb -filetype=obj -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-GNU
6 # RUN: llc -debug-entry-values -debugger-tune=lldb -filetype=obj -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5
7 #
8 # extern void foo(int *a, int b, int c, int d, int e, int f);
9 # extern int getVal();
10 #
11 # void baa(int arg1, int arg2, int arg3) {
12 # int local1 = getVal();
13 # foo(&local1, arg2, 10, 15, arg3 + 3, arg1 + arg2);
14 # }
15 #
16 # CHECK-GNU: DW_TAG_GNU_call_site
17 # CHECK-GNU: DW_AT_abstract_origin {{.*}} "getVal"
18 #
19 # CHECK-GNU: DW_TAG_GNU_call_site
20 # CHECK-GNU: DW_AT_abstract_origin {{.*}} "foo"
21 # CHECK-GNU: DW_AT_low_pc {{.*}}
22 # CHECK-GNU-EMPTY:
23 # CHECK-GNU: DW_TAG_GNU_call_site_parameter
24 # CHECK-GNU-NEXT: DW_AT_location (DW_OP_reg2 RCX)
25 # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value (DW_OP_lit15)
26 # CHECK-GNU: DW_TAG_GNU_call_site_parameter
27 # CHECK-GNU-NEXT: DW_AT_location (DW_OP_reg1 RDX)
28 # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value (DW_OP_lit10)
29 # CHECK-GNU: DW_TAG_GNU_call_site_parameter
30 # CHECK-GNU-NEXT: DW_AT_location (DW_OP_reg4 RSI)
31 # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg3 RBX+0)
32 # CHECK-GNU: DW_TAG_GNU_call_site_parameter
33 # CHECK-GNU-NEXT: DW_AT_location (DW_OP_reg5 RDI)
34 # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value (DW_OP_fbreg +12)
35 # CHECK-GNU: DW_TAG_GNU_call_site_parameter
36 # CHECK-GNU-NEXT: DW_AT_location (DW_OP_reg9 R9)
37 # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg15 R15+0, DW_OP_breg3 RBX+0, DW_OP_plus)
38 # CHECK-GNU: DW_TAG_GNU_call_site_parameter
39 # CHECK-GNU-NEXT: DW_AT_location (DW_OP_reg8 R8)
40 # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg14 R14+3)
42 # CHECK-DWARF5: [[getValue_SP:.*]]: DW_TAG_subprogram
43 # CHECK-DWARF5-NEXT: DW_AT_name ("getVal")
45 # CHECK-DWARF5: [[foo_SP:.*]]: DW_TAG_subprogram
46 # CHECK-DWARF5-NEXT: DW_AT_name ("foo")
48 # CHECK-DWARF5: DW_TAG_call_site
49 # CHECK-DWARF5: DW_AT_call_origin ([[getValue_SP]])
50 #
51 # CHECK-DWARF5: DW_TAG_call_site
52 # CHECK-DWARF5: DW_AT_call_origin ([[foo_SP]])
53 # CHECK-DWARF5: DW_AT_call_return_pc {{.*}}
54 # CHECK-DWARF5-EMPTY:
55 # CHECK-DWARF5: DW_TAG_call_site_parameter
56 # CHECK-DWARF5-NEXT: DW_AT_location (DW_OP_reg2 RCX)
57 # CHECK-DWARF5-NEXT: DW_AT_call_value (DW_OP_lit15)
58 # CHECK-DWARF5: DW_TAG_call_site_parameter
59 # CHECK-DWARF5-NEXT: DW_AT_location (DW_OP_reg1 RDX)
60 # CHECK-DWARF5-NEXT: DW_AT_call_value (DW_OP_lit10)
61 # CHECK-DWARF5: DW_TAG_call_site_parameter
62 # CHECK-DWARF5-NEXT: DW_AT_location (DW_OP_reg4 RSI)
63 # CHECK-DWARF5-NEXT: DW_AT_call_value (DW_OP_breg3 RBX+0)
64 # CHECK-DWARF5: DW_TAG_call_site_parameter
65 # CHECK-DWARF5-NEXT: DW_AT_location (DW_OP_reg5 RDI)
66 # CHECK-DWARF5-NEXT: DW_AT_call_value (DW_OP_fbreg +12)
67 # CHECK-DWARF5: DW_TAG_call_site_parameter
68 # CHECK-DWARF5-NEXT: DW_AT_location (DW_OP_reg9 R9)
69 # CHECK-DWARF5-NEXT: DW_AT_call_value (DW_OP_breg15 R15+0, DW_OP_breg3 RBX+0, DW_OP_plus)
70 # CHECK-DWARF5: DW_TAG_call_site_parameter
71 # CHECK-DWARF5-NEXT: DW_AT_location (DW_OP_reg8 R8)
72 # CHECK-DWARF5-NEXT: DW_AT_call_value (DW_OP_breg14 R14+3)
74 --- |
75 ; ModuleID = 'test.c'
76 source_filename = "test.c"
77 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
79 ; Function Attrs: nounwind uwtable
80 define dso_local void @baa(i32 %arg1, i32 %arg2, i32 %arg3) local_unnamed_addr !dbg !10 {
81 entry:
82 %local1 = alloca i32, align 4
83 call void @llvm.dbg.value(metadata i32 %arg1, metadata !15, metadata !DIExpression()), !dbg !19
84 call void @llvm.dbg.value(metadata i32 %arg2, metadata !16, metadata !DIExpression()), !dbg !20
85 call void @llvm.dbg.value(metadata i32 %arg3, metadata !17, metadata !DIExpression()), !dbg !21
86 %0 = bitcast i32* %local1 to i8*, !dbg !22
87 %call = tail call i32 (...) @getVal(), !dbg !23
88 call void @llvm.dbg.value(metadata i32 %call, metadata !18, metadata !DIExpression()), !dbg !24
89 store i32 %call, i32* %local1, align 4, !dbg !24
90 %add = add nsw i32 %arg3, 3, !dbg !24
91 %add1 = add nsw i32 %arg2, %arg1, !dbg !24
92 call void @llvm.dbg.value(metadata i32* %local1, metadata !18, metadata !DIExpression(DW_OP_deref)), !dbg !24
93 call void @foo(i32* nonnull %local1, i32 %arg2, i32 10, i32 15, i32 %add, i32 %add1), !dbg !24
94 ret void, !dbg !24
95 }
97 declare !dbg !4 dso_local i32 @getVal(...) local_unnamed_addr
99 declare !dbg !5 dso_local void @foo(i32*, i32, i32, i32, i32, i32) local_unnamed_addr
101 ; Function Attrs: nounwind readnone speculatable
102 declare void @llvm.dbg.value(metadata, metadata, metadata)
104 !llvm.dbg.cu = !{!0}
105 !llvm.module.flags = !{!6, !7, !8}
106 !llvm.ident = !{!9}
108 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
109 !1 = !DIFile(filename: "test.c", directory: "/dir")
110 !2 = !{}
111 !3 = !{!4, !5}
112 !4 = !DISubprogram(name: "getVal", scope: !1, file: !1, line: 2, spFlags: DISPFlagOptimized, retainedNodes: !2)
113 !5 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
114 !6 = !{i32 2, !"Dwarf Version", i32 4}
115 !7 = !{i32 2, !"Debug Info Version", i32 3}
116 !8 = !{i32 1, !"wchar_size", i32 4}
117 !9 = !{!"clang version 9.0.0"}
118 !10 = distinct !DISubprogram(name: "baa", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !14)
119 !11 = !DISubroutineType(types: !12)
120 !12 = !{null, !13, !13, !13}
121 !13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
122 !14 = !{!15, !16, !17, !18}
123 !15 = !DILocalVariable(name: "arg1", arg: 1, scope: !10, file: !1, line: 4, type: !13, flags: DIFlagArgumentNotModified)
124 !16 = !DILocalVariable(name: "arg2", arg: 2, scope: !10, file: !1, line: 4, type: !13, flags: DIFlagArgumentNotModified)
125 !17 = !DILocalVariable(name: "arg3", arg: 3, scope: !10, file: !1, line: 4, type: !13, flags: DIFlagArgumentNotModified)
126 !18 = !DILocalVariable(name: "local1", scope: !10, file: !1, line: 5, type: !13)
127 !19 = !DILocation(line: 4, column: 14, scope: !10)
128 !20 = !DILocation(line: 4, column: 24, scope: !10)
129 !21 = !DILocation(line: 4, column: 34, scope: !10)
130 !22 = !DILocation(line: 5, column: 3, scope: !10)
131 !23 = !DILocation(line: 5, column: 16, scope: !10)
132 !24 = !DILocation(line: 5, column: 7, scope: !10)
134 ...
135 ---
136 name: baa
137 liveins:
138 - { reg: '$edi', virtual-reg: '' }
139 - { reg: '$esi', virtual-reg: '' }
140 - { reg: '$edx', virtual-reg: '' }
141 callSites:
142 - { bb: 0, offset: 21, fwdArgRegs: [] }
143 - { bb: 0, offset: 31, fwdArgRegs:
144 - { arg: 0, reg: '$rdi' }
145 - { arg: 1, reg: '$esi' }
146 - { arg: 2, reg: '$edx' }
147 - { arg: 3, reg: '$ecx' }
148 - { arg: 4, reg: '$r8d' }
149 - { arg: 5, reg: '$r9d' } }
150 body: |
151 bb.0.entry:
152 liveins: $edi, $edx, $esi, $r15, $r14, $rbx
154 DBG_VALUE $edi, $noreg, !15, !DIExpression(), debug-location !19
155 DBG_VALUE $esi, $noreg, !16, !DIExpression(), debug-location !20
156 DBG_VALUE $edx, $noreg, !17, !DIExpression(), debug-location !21
157 frame-setup PUSH64r killed $r15, implicit-def $rsp, implicit $rsp
158 CFI_INSTRUCTION def_cfa_offset 16
159 frame-setup PUSH64r killed $r14, implicit-def $rsp, implicit $rsp
160 CFI_INSTRUCTION def_cfa_offset 24
161 frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
162 CFI_INSTRUCTION def_cfa_offset 32
163 $rsp = frame-setup SUB64ri8 $rsp, 16, implicit-def dead $eflags
164 CFI_INSTRUCTION def_cfa_offset 48
165 CFI_INSTRUCTION offset $rbx, -32
166 CFI_INSTRUCTION offset $r14, -24
167 CFI_INSTRUCTION offset $r15, -16
168 $r14d = MOV32rr $edx, implicit-def $r14
169 $ebx = MOV32rr $esi, implicit-def $rbx
170 $r15d = MOV32rr $edi, implicit-def $r15
171 DBG_VALUE $r14d, $noreg, !17, !DIExpression(), debug-location !21
172 DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !20
173 DBG_VALUE $r15d, $noreg, !15, !DIExpression(), debug-location !19
174 dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !23
175 CALL64pcrel32 @getVal, csr_64, implicit $rsp, implicit $ssp, implicit $al, implicit-def $rsp, implicit-def $ssp, implicit-def $eax, debug-location !23
176 DBG_VALUE $eax, $noreg, !18, !DIExpression(), debug-location !24
177 MOV32mr $rsp, 1, $noreg, 12, $noreg, killed renamable $eax, debug-location !24 :: (store 4 into %ir.local1)
178 renamable $r8d = LEA64_32r killed renamable $r14, 1, $noreg, 3, $noreg, debug-location !24
179 renamable $r9d = LEA64_32r killed renamable $r15, 1, renamable $rbx, 0, $noreg, debug-location !24
180 DBG_VALUE $rsp, $noreg, !18, !DIExpression(DW_OP_plus_uconst, 12, DW_OP_deref), debug-location !24
181 renamable $rdi = LEA64r $rsp, 1, $noreg, 12, $noreg
182 $esi = MOV32rr $ebx, implicit killed $rbx, debug-location !24
183 $edx = MOV32ri 10, debug-location !24
184 $ecx = MOV32ri 15, debug-location !24
185 CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $esi, implicit $edx, implicit killed $ecx, implicit $r8d, implicit $r9d, implicit-def $rsp, implicit-def $ssp, debug-location !24
186 $rsp = frame-destroy ADD64ri8 $rsp, 16, implicit-def dead $eflags, debug-location !24
187 CFI_INSTRUCTION def_cfa_offset 32, debug-location !24
188 $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !24
189 CFI_INSTRUCTION def_cfa_offset 24, debug-location !24
190 $r14 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !24
191 CFI_INSTRUCTION def_cfa_offset 16, debug-location !24
192 $r15 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !24
193 CFI_INSTRUCTION def_cfa_offset 8, debug-location !24
194 RETQ debug-location !24
196 ...