1 # RUN: llc -o - %s -start-after=patchable-function -O0 | FileCheck %s
3 # Generated from the source file pr19307.cc:
5 # void parse_range(unsigned long long &offset, unsigned long long &limit,
7 # if (range.compare(0, 6, "items=") != 0 || range[6] == '-')
12 # with "clang++ -S -emit-llvm -O0 -g pr19307.cc"
14 # Location of "range" string is spilled from %rdx to stack and is
16 # CHECK: movq %rdx, {{[-0-9]+}}(%rbp)
17 # CHECK-NEXT: [[START_LABEL:.Ltmp[0-9]+]]:
18 # This location should be valid until the end of the function.
20 # Verify that we have proper range in debug_loc section:
21 # CHECK: .Ldebug_loc{{[0-9]+}}:
23 # CHECK: .quad [[START_LABEL]]-.Lfunc_begin0
24 # CHECK-NEXT: .quad .Lfunc_end0-.Lfunc_begin0
28 target triple = "x86_64-unknown-linux-gnu"
30 %"class.std::basic_string" = type { %"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" }
31 %"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" = type { i8* }
33 @.str = private unnamed_addr constant [7 x i8] c"items=\00", align 1
35 ; Function Attrs: uwtable
36 define void @_Z11parse_rangeRyS_Ss(i64* %offset, i64* %limit, %"class.std::basic_string"* %range) #0 !dbg !34 {
38 %offset.addr = alloca i64*, align 8
39 %limit.addr = alloca i64*, align 8
40 store i64* %offset, i64** %offset.addr, align 8
41 call void @llvm.dbg.declare(metadata i64** %offset.addr, metadata !41, metadata !DIExpression()), !dbg !42
42 store i64* %limit, i64** %limit.addr, align 8
43 call void @llvm.dbg.declare(metadata i64** %limit.addr, metadata !43, metadata !DIExpression()), !dbg !42
44 call void @llvm.dbg.declare(metadata %"class.std::basic_string"* %range, metadata !44, metadata !DIExpression(DW_OP_deref)), !dbg !45
45 %call = call i32 @_ZNKSs7compareEmmPKc(%"class.std::basic_string"* %range, i64 0, i64 6, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0)), !dbg !46
46 %cmp = icmp ne i32 %call, 0, !dbg !46
47 br i1 %cmp, label %if.then, label %lor.lhs.false, !dbg !46
49 lor.lhs.false: ; preds = %entry
50 %call1 = call i8* @_ZNSsixEm(%"class.std::basic_string"* %range, i64 6), !dbg !48
51 %0 = load i8, i8* %call1, !dbg !48
52 %conv = sext i8 %0 to i32, !dbg !48
53 %cmp2 = icmp eq i32 %conv, 45, !dbg !48
54 br i1 %cmp2, label %if.then, label %if.end, !dbg !48
56 if.then: ; preds = %lor.lhs.false, %entry
57 %1 = load i64*, i64** %offset.addr, align 8, !dbg !50
58 store i64 1, i64* %1, align 8, !dbg !50
59 br label %if.end, !dbg !50
61 if.end: ; preds = %if.then, %lor.lhs.false
62 %call3 = call %"class.std::basic_string"* @_ZNSs5eraseEmm(%"class.std::basic_string"* %range, i64 0, i64 6), !dbg !51
63 %2 = load i64*, i64** %limit.addr, align 8, !dbg !52
64 store i64 2, i64* %2, align 8, !dbg !52
68 ; Function Attrs: nounwind readnone speculatable
69 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
71 declare i32 @_ZNKSs7compareEmmPKc(%"class.std::basic_string"*, i64, i64, i8*) #2
73 declare i8* @_ZNSsixEm(%"class.std::basic_string"*, i64) #2
75 declare %"class.std::basic_string"* @_ZNSs5eraseEmm(%"class.std::basic_string"*, i64, i64) #2
77 ; Function Attrs: nounwind
78 declare void @llvm.stackprotector(i8*, i8**) #3
80 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
81 attributes #1 = { nounwind readnone speculatable }
82 attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
83 attributes #3 = { nounwind }
86 !llvm.module.flags = !{!31, !32}
89 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.5.0 (209308)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !2, imports: !11)
90 !1 = !DIFile(filename: "pr19307.cc", directory: "/llvm_cmake_gcc")
93 !4 = !DICompositeType(tag: DW_TAG_structure_type, file: !5, line: 83, flags: DIFlagFwdDecl, identifier: "_ZTS11__mbstate_t")
94 !5 = !DIFile(filename: "/usr/include/wchar.h", directory: "/llvm_cmake_gcc")
95 !6 = !DICompositeType(tag: DW_TAG_structure_type, name: "lconv", file: !7, line: 54, flags: DIFlagFwdDecl, identifier: "_ZTS5lconv")
96 !7 = !DIFile(filename: "/usr/include/locale.h", directory: "/llvm_cmake_gcc")
97 !8 = !DICompositeType(tag: DW_TAG_class_type, name: "basic_string<char, std::char_traits<char>, std::allocator<char> >", scope: !10, file: !9, line: 1134, flags: DIFlagFwdDecl, identifier: "_ZTSSs")
98 !9 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/bits/basic_string.tcc", directory: "/llvm_cmake_gcc")
99 !10 = !DINamespace(name: "std", scope: null)
100 !11 = !{!12, !15, !18, !22, !27, !30}
101 !12 = !DIImportedEntity(tag: DW_TAG_imported_module, scope: !13, entity: !14, file: !1, line: 57)
102 !13 = !DINamespace(name: "__gnu_debug", scope: null)
103 !14 = !DINamespace(name: "__debug", scope: !10)
104 !15 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !10, entity: !16, file: !1, line: 66)
105 !16 = !DIDerivedType(tag: DW_TAG_typedef, name: "mbstate_t", file: !5, line: 106, baseType: !17)
106 !17 = !DIDerivedType(tag: DW_TAG_typedef, name: "__mbstate_t", file: !5, line: 95, baseType: !4)
107 !18 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !10, entity: !19, file: !1, line: 141)
108 !19 = !DIDerivedType(tag: DW_TAG_typedef, name: "wint_t", file: !20, line: 141, baseType: !21)
109 !20 = !DIFile(filename: "/llvm_cmake_gcc/bin/../lib/clang/3.5.0/include/stddef.h", directory: "/llvm_cmake_gcc")
110 !21 = !DIBasicType(name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
111 !22 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !23, entity: !24, file: !1, line: 42)
112 !23 = !DINamespace(name: "__gnu_cxx", scope: null)
113 !24 = !DIDerivedType(tag: DW_TAG_typedef, name: "size_t", scope: !10, file: !25, line: 155, baseType: !26)
114 !25 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/x86_64-linux-gnu/bits/c++config.h", directory: "/llvm_cmake_gcc")
115 !26 = !DIBasicType(name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
116 !27 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !23, entity: !28, file: !1, line: 43)
117 !28 = !DIDerivedType(tag: DW_TAG_typedef, name: "ptrdiff_t", scope: !10, file: !25, line: 156, baseType: !29)
118 !29 = !DIBasicType(name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
119 !30 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !10, entity: !6, file: !1, line: 55)
120 !31 = !{i32 2, !"Dwarf Version", i32 4}
121 !32 = !{i32 2, !"Debug Info Version", i32 3}
122 !33 = !{!"clang version 3.5.0 (209308)"}
123 !34 = distinct !DISubprogram(name: "parse_range", linkageName: "_Z11parse_rangeRyS_Ss", scope: !1, file: !1, line: 3, type: !35, isLocal: false, isDefinition: true, scopeLine: 4, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
124 !35 = !DISubroutineType(types: !36)
125 !36 = !{null, !37, !37, !39}
126 !37 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !38)
127 !38 = !DIBasicType(name: "long long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
128 !39 = !DIDerivedType(tag: DW_TAG_typedef, name: "string", scope: !10, file: !40, line: 65, baseType: !8)
129 !40 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/bits/stringfwd.h", directory: "/llvm_cmake_gcc")
130 !41 = !DILocalVariable(name: "offset", arg: 1, scope: !34, file: !1, line: 3, type: !37)
131 !42 = !DILocation(line: 3, scope: !34)
132 !43 = !DILocalVariable(name: "limit", arg: 2, scope: !34, file: !1, line: 3, type: !37)
133 !44 = !DILocalVariable(name: "range", arg: 3, scope: !34, file: !1, line: 4, type: !39)
134 !45 = !DILocation(line: 4, scope: !34)
135 !46 = !DILocation(line: 5, scope: !47)
136 !47 = distinct !DILexicalBlock(scope: !34, file: !1, line: 5)
137 !48 = !DILocation(line: 5, scope: !49)
138 !49 = distinct !DILexicalBlock(scope: !47, file: !1, line: 5)
139 !50 = !DILocation(line: 6, scope: !47)
140 !51 = !DILocation(line: 7, scope: !34)
141 !52 = !DILocation(line: 8, scope: !34)
142 !53 = !DILocation(line: 9, scope: !34)
146 name: _Z11parse_rangeRyS_Ss
148 tracksRegLiveness: true
155 offsetAdjustment: -32
161 - { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, stack-id: default }
163 - { id: 0, name: offset.addr, offset: -24, size: 8, alignment: 8, stack-id: default,
164 debug-info-variable: '!41', debug-info-expression: '!DIExpression()',
165 debug-info-location: '!42' }
166 - { id: 1, name: limit.addr, offset: -32, size: 8, alignment: 8, stack-id: default,
167 debug-info-variable: '!43', debug-info-expression: '!DIExpression()',
168 debug-info-location: '!42' }
169 - { id: 2, type: spill-slot, offset: -40, size: 8, alignment: 8, stack-id: default }
170 - { id: 3, type: spill-slot, offset: -48, size: 8, alignment: 8, stack-id: default }
173 liveins: $rdi, $rsi, $rdx
175 frame-setup PUSH64r killed $rbp, implicit-def $rsp, implicit $rsp
176 CFI_INSTRUCTION def_cfa_offset 16
177 CFI_INSTRUCTION offset $rbp, -16
178 $rbp = frame-setup MOV64rr $rsp
179 CFI_INSTRUCTION def_cfa_register $rbp
180 $rsp = frame-setup SUB64ri8 $rsp, 32, implicit-def dead $eflags
181 $eax = XOR32rr undef $eax, undef $eax, implicit-def $eflags, implicit-def $rax
182 MOV64mr $rbp, 1, $noreg, -8, $noreg, killed renamable $rdi :: (store 8 into %ir.offset.addr)
183 MOV64mr $rbp, 1, $noreg, -16, $noreg, killed renamable $rsi :: (store 8 into %ir.limit.addr)
184 DBG_VALUE renamable $rdx, 0, !44, !DIExpression(DW_OP_deref), debug-location !45
185 $rdi = MOV64rr $rdx, debug-location !46
186 $rsi = MOV64rr killed $rax, debug-location !46
187 $eax = MOV32ri 6, implicit-def $rax, debug-location !46
188 MOV64mr $rbp, 1, $noreg, -24, $noreg, killed $rdx :: (store 8 into %stack.2)
189 DBG_VALUE $rbp, 0, !44, !DIExpression(DW_OP_constu, 24, DW_OP_minus, DW_OP_deref, DW_OP_deref), debug-location !45
190 $rdx = MOV64rr killed $rax, debug-location !46
191 renamable $rcx = MOV64ri @.str, debug-location !46
192 CALL64pcrel32 @_ZNKSs7compareEmmPKc, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit killed $rsi, implicit killed $rdx, implicit killed $rcx, implicit-def $eax, debug-location !46
193 CMP32ri8 killed renamable $eax, 0, implicit-def $eflags, debug-location !46
194 JCC_1 %bb.2, 5, implicit $eflags, debug-location !46
197 DBG_VALUE $rbp, 0, !44, !DIExpression(DW_OP_constu, 24, DW_OP_minus, DW_OP_deref, DW_OP_deref), debug-location !45
198 $rdi = MOV64rm $rbp, 1, $noreg, -24, $noreg :: (load 8 from %stack.2)
199 $esi = MOV32ri 6, implicit-def $rsi, debug-location !48
200 CALL64pcrel32 @_ZNSsixEm, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit killed $rsi, implicit-def $rax, debug-location !48
201 renamable $ecx = MOVSX32rm8 killed renamable $rax, 1, $noreg, 0, $noreg, debug-location !48 :: (load 1 from %ir.call1)
202 CMP32ri8 killed renamable $ecx, 45, implicit-def $eflags, debug-location !48
203 JCC_1 %bb.3, 5, implicit $eflags, debug-location !48
206 DBG_VALUE $rbp, 0, !44, !DIExpression(DW_OP_constu, 24, DW_OP_minus, DW_OP_deref, DW_OP_deref), debug-location !45
207 renamable $rax = MOV64rm $rbp, 1, $noreg, -8, $noreg, debug-location !50 :: (load 8 from %ir.offset.addr)
208 MOV64mi32 killed renamable $rax, 1, $noreg, 0, $noreg, 1, debug-location !50 :: (store 8 into %ir.1)
211 DBG_VALUE $rbp, 0, !44, !DIExpression(DW_OP_constu, 24, DW_OP_minus, DW_OP_deref, DW_OP_deref), debug-location !45
212 $esi = XOR32rr undef $esi, undef $esi, implicit-def $eflags, implicit-def $rsi
213 $rdi = MOV64rm $rbp, 1, $noreg, -24, $noreg :: (load 8 from %stack.2)
214 $edx = MOV32ri 6, implicit-def $rdx, debug-location !51
215 CALL64pcrel32 @_ZNSs5eraseEmm, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit killed $rsi, implicit killed $rdx, implicit-def $rax, debug-location !51
216 renamable $rdx = MOV64rm $rbp, 1, $noreg, -16, $noreg, debug-location !52 :: (load 8 from %ir.limit.addr)
217 MOV64mi32 killed renamable $rdx, 1, $noreg, 0, $noreg, 2, debug-location !52 :: (store 8 into %ir.2)
218 MOV64mr $rbp, 1, $noreg, -32, $noreg, killed $rax :: (store 8 into %stack.3)
219 $rsp = frame-destroy ADD64ri8 $rsp, 32, implicit-def dead $eflags, debug-location !53
220 $rbp = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !53
221 CFI_INSTRUCTION def_cfa $rsp, 8, debug-location !53
222 RETQ debug-location !53