1; RUN: llc -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o - -minimize-addr-in-v5=Ranges \ 2; RUN: | llvm-dwarfdump -debug-info -debug-addr -debug-rnglists -v - \ 3; RUN: | FileCheck --check-prefix=CHECK --check-prefix=RNG \ 4; RUN: --implicit-check-not=DW_TAG --implicit-check-not=NULL --implicit-check-not=_pc %s 5 6; RUN: llc -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o - -minimize-addr-in-v5=Expressions \ 7; RUN: | llvm-dwarfdump -debug-info -debug-addr -debug-rnglists -v - \ 8; RUN: | FileCheck --check-prefix=CHECK --check-prefix=EXPRORFORM --check-prefix=EXPR\ 9; RUN: --implicit-check-not=DW_TAG --implicit-check-not=NULL --implicit-check-not=_pc %s 10 11; RUN: llc -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o - -minimize-addr-in-v5=Form \ 12; RUN: | llvm-dwarfdump -debug-info -debug-addr -debug-rnglists -v - \ 13; RUN: | FileCheck --check-prefix=CHECK --check-prefix=EXPRORFORM --check-prefix=FORM \ 14; RUN: --implicit-check-not=DW_TAG --implicit-check-not=NULL --implicit-check-not=_pc %s 15 16 17; Generated from the following source. f4 is used to put a hole in the CU 18; ranges while keeping f2 and f4 in the same section (as opposed to 19; -ffunction-sections, which would produce CU ranges, but each function would 20; be in a different section, so unable to share addresses). The call to f1 at 21; the start of f3 ensures the range for the inlined subroutine doesn't share 22; the starting address with f3 (so it can be improved by using a rnglist to 23; allow it to share an address it wouldn't already be sharing). 24 25; Without f6 being in another section, technically we could use a non-zero CU 26; low_pc that could act as a base address for all the addresses in the CU & avoid 27; the need for these forced rnglists - we don't do that currently, but f6 ensures 28; that this test will remain meaningful even if that improvement is made in the 29; future. (implementing that would require detecting that all the addresses in 30; the CU ranges are in the same section, then picking the lowest such address as 31; the base address to make all other addresses relative to) 32 33; IR from the following, compiled with: 34; $ clang -g -c -gdwarf-5 -O1 35; __attribute__((optnone)) void f1() { } 36; __attribute__((always_inline)) inline void f2() { 37; f1(); 38; } 39; void f3() { 40; f1(); 41; f2(); 42; } 43; __attribute__((nodebug)) void f4() { 44; } 45; void f5() { 46; } 47; __attribute__((section(".other"))) void f6() { 48; } 49 50; CHECK-LABEL: .debug_info contents: 51; CHECK: DW_TAG_compile_unit 52; CHECK: DW_AT_low_pc 53; CHECK-SAME: (0x0000000000000000) 54; RNG: DW_AT_ranges 55; RNG-SAME: (indexed (0x4) rangelist = [[CU_RANGE:.*]] 56; EXPRORFORM: DW_AT_ranges 57; EXPRORFORM-SAME: (indexed (0x0) rangelist = [[CU_RANGE:.*]] 58; CHECK: DW_TAG_subprogram 59; CHECK: DW_AT_low_pc 60; CHECK-SAME: (indexed (00000000) address = 0x0000000000000000 ".text") 61; CHECK: DW_AT_high_pc 62; CHECK-SAME: (0x00000001) 63; CHECK: DW_AT_name 64; CHECK-SAME: "f1" 65; CHECK: DW_TAG_subprogram 66; CHECK: DW_AT_name 67; CHECK-SAME: "f2" 68; CHECK: DW_TAG_subprogram 69; EXPR: DW_AT_low_pc 70; EXPR-SAME: (DW_OP_addrx 0x0, DW_OP_const4u 0x10, DW_OP_plus) 71; FORM: DW_AT_low_pc 72; FORM-SAME: [DW_FORM_LLVM_addrx_offset] (indexed (00000000) + 0x10 address = 0x0000000000000010 ".text") 73; EXPRORFORM: DW_AT_high_pc 74; EXPRORFORM-SAME: (0x0000000d) 75; RNG: DW_AT_ranges 76; RNG-SAME: (indexed (0x0) rangelist = [[F3_RANGE:.*]] 77; CHECK: DW_AT_name 78; CHECK-SAME: "f3" 79; CHECK: DW_TAG_inlined_subroutine 80; EXPR: DW_AT_low_pc 81; EXPR-SAME: [DW_FORM_exprloc] (DW_OP_addrx 0x0, DW_OP_const4u 0x16, DW_OP_plus) 82; FORM: DW_AT_low_pc 83; FORM-SAME: [DW_FORM_LLVM_addrx_offset] (indexed (00000000) + 0x16 address = 0x0000000000000016 ".text") 84; EXPRORFORM: DW_AT_high_pc 85; EXPRORFORM-SAME: (0x00000005) 86; RNG: DW_AT_ranges 87; RNG-SAME: (indexed (0x1) rangelist = [[INL_RANGE:.*]] 88; CHECK: DW_TAG_call_site 89; RNG: DW_AT_call_return_pc 90; RNG-SAME: (indexed (00000001) address = 0x0000000000000016 ".text") 91; EXPR: DW_AT_call_return_pc 92; EXPR-SAME: [DW_FORM_exprloc] (DW_OP_addrx 0x0, DW_OP_const4u 0x16, DW_OP_plus) 93; FORM: DW_AT_call_return_pc 94; FORM-SAME: [DW_FORM_LLVM_addrx_offset] (indexed (00000000) + 0x16 address = 0x0000000000000016 ".text") 95; CHECK: DW_TAG_call_site 96; RNG: DW_AT_call_return_pc 97; RNG-SAME: (indexed (00000002) address = 0x000000000000001b ".text") 98; EXPR: DW_AT_call_return_pc 99; EXPR-SAME: [DW_FORM_exprloc] (DW_OP_addrx 0x0, DW_OP_const4u 0x1b, DW_OP_plus) 100; FORM: DW_AT_call_return_pc 101; FORM-SAME: [DW_FORM_LLVM_addrx_offset] (indexed (00000000) + 0x1b address = 0x000000000000001b ".text") 102; CHECK: NULL 103; CHECK: DW_TAG_subprogram 104; EXPR: DW_AT_low_pc 105; EXPR-SAME: [DW_FORM_exprloc] (DW_OP_addrx 0x0, DW_OP_const4u 0x30, DW_OP_plus) 106; FORM: DW_AT_low_pc 107; FORM-SAME: [DW_FORM_LLVM_addrx_offset] (indexed (00000000) + 0x30 address = 0x0000000000000030 ".text") 108; EXPRORFORM: DW_AT_high_pc 109; EXPRORFORM-SAME: (0x00000001) 110; RNG: DW_AT_ranges 111; RNG-SAME: (indexed (0x2) rangelist = [[F5_RANGE:.*]] 112; CHECK: DW_AT_name 113; CHECK-SAME: "f5" 114; CHECK: DW_TAG_subprogram 115; CHECK: DW_AT_low_pc [DW_FORM_addrx] (indexed ( 116; RNG-SAME: 00000003 117; EXPRORFORM-SAME: 00000001 118; CHECK: ) address = 0x0000000000000000 ".other") 119; CHECK: DW_AT_high_pc 120; CHECK-SAME: (0x00000008) 121; CHECK: DW_AT_name 122; CHECK-SAME: "f6" 123; CHECK: DW_TAG_inlined_subroutine 124; RNG: DW_AT_ranges 125; RNG-SAME: (indexed (0x3) rangelist = [[F6_INL_RANGE:.*]] 126; EXPR: DW_AT_low_pc 127; EXPR-SAME: [DW_FORM_exprloc] (DW_OP_addrx 0x1, DW_OP_const4u 0x1, DW_OP_plus) 128; FORM: DW_AT_low_pc 129; FORM-SAME: [DW_FORM_LLVM_addrx_offset] (indexed (00000001) + 0x1 address = 0x0000000000000001 ".other") 130; EXPRORFORM: DW_AT_high_pc 131; EXPRORFORM-SAME: (0x00000005) 132; CHECK: DW_TAG_call_site 133; CHECK: DW_AT_call_return_pc 134; CHECK: NULL 135; CHECK: NULL 136 137; CHECK-LABEL: .debug_addr contents: 138; CHECK: 0x00000000: Address table 139; CHECK-NEXT: Addrs: [ 140; CHECK-NEXT: 0x0000000000000000 141; RNG-NEXT: 0x0000000000000016 142; RNG-NEXT: 0x000000000000001b 143; CHECK-NEXT: 0x0000000000000000 144; RNG-NEXT: 0x0000000000000006 145; CHECK-NEXT: ] 146 147; CHECK-LABEL: .debug_rnglists contents: 148; RNG: 0x00000000: range list header: {{.*}}, offset_entry_count = 0x00000005 149; EXPRORFORM: 0x00000000: range list header: {{.*}}, offset_entry_count = 0x00000001 150; CHECK: ranges: 151; RNG-NEXT: [[F3_RANGE]]: [DW_RLE_base_addressx]: 152; RNG-SAME: 0x0000000000000000 153; RNG-NEXT: [DW_RLE_offset_pair ] 154; RNG-NEXT: [DW_RLE_end_of_list ] 155 156; RNG-NEXT: [[INL_RANGE]]: [DW_RLE_base_addressx]: 157; RNG-SAME: 0x0000000000000000 158; RNG-NEXT: [DW_RLE_offset_pair ] 159; RNG-NEXT: [DW_RLE_end_of_list ] 160 161; RNG-NEXT: [[F5_RANGE]]: [DW_RLE_base_addressx]: 162; RNG-SAME: 0x0000000000000000 163; RNG-NEXT: [DW_RLE_offset_pair ] 164; RNG-NEXT: [DW_RLE_end_of_list ] 165 166; RNG-NEXT: [[F6_INL_RANGE]]: [DW_RLE_base_addressx]: 167; RNG-SAME: 0x0000000000000003 168; RNG-NEXT: [DW_RLE_offset_pair ] 169; RNG-NEXT: [DW_RLE_end_of_list ] 170 171; CHECK-NEXT: [[CU_RANGE]]: [DW_RLE_base_addressx]: 172; CHECK-SAME: 0x0000000000000000 173; CHECK-NEXT: [DW_RLE_offset_pair ] 174; CHECK-NEXT: [DW_RLE_offset_pair ] 175; RNG-NEXT: [DW_RLE_startx_length]: 176; RNG-SAME: 0x0000000000000003 177; EXPRORFORM-NEXT: [DW_RLE_startx_length]: 178; EXPRORFORM-SAME: 0x0000000000000001 179; CHECK-NEXT: [DW_RLE_end_of_list ] 180 181; Function Attrs: mustprogress noinline nounwind optnone uwtable 182define dso_local void @_Z2f1v() local_unnamed_addr #0 !dbg !7 { 183entry: 184 ret void, !dbg !12 185} 186 187; Function Attrs: mustprogress nounwind uwtable 188define dso_local void @_Z2f3v() local_unnamed_addr #1 !dbg !13 { 189entry: 190 call void @_Z2f1v(), !dbg !14 191 call void @_Z2f1v() #3, !dbg !15 192 ret void, !dbg !18 193} 194 195; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone uwtable willreturn 196define dso_local void @_Z2f4v() local_unnamed_addr #2 { 197entry: 198 ret void 199} 200 201; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone uwtable willreturn 202define dso_local void @_Z2f5v() local_unnamed_addr #2 !dbg !19 { 203entry: 204 ret void, !dbg !20 205} 206 207; Function Attrs: mustprogress nounwind uwtable 208define dso_local void @_Z2f6v() local_unnamed_addr #1 section ".other" !dbg !21 { 209entry: 210 call void @_Z2f1v() #3, !dbg !22 211 ret void, !dbg !24 212} 213 214attributes #0 = { mustprogress noinline nounwind optnone uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } 215attributes #1 = { mustprogress nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } 216attributes #2 = { mustprogress nofree norecurse nosync nounwind readnone uwtable willreturn "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } 217attributes #3 = { nounwind } 218 219!llvm.dbg.cu = !{!0} 220!llvm.module.flags = !{!2, !3, !4, !5} 221!llvm.ident = !{!6} 222 223!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0 (git@github.com:llvm/llvm-project.git e2c3dc6fc76e767f08249f6d2c36e41660a4e331)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) 224!1 = !DIFile(filename: "/usr/local/google/home/blaikie/dev/scratch/test.cpp", directory: "/usr/local/google/home/blaikie/dev/llvm/src", checksumkind: CSK_MD5, checksum: "e70db21a276125757057e729999c09c7") 225!2 = !{i32 7, !"Dwarf Version", i32 5} 226!3 = !{i32 2, !"Debug Info Version", i32 3} 227!4 = !{i32 1, !"wchar_size", i32 4} 228!5 = !{i32 7, !"uwtable", i32 1} 229!6 = !{!"clang version 14.0.0 (git@github.com:llvm/llvm-project.git e2c3dc6fc76e767f08249f6d2c36e41660a4e331)"} 230!7 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", scope: !8, file: !8, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 231!8 = !DIFile(filename: "scratch/test.cpp", directory: "/usr/local/google/home/blaikie/dev", checksumkind: CSK_MD5, checksum: "e70db21a276125757057e729999c09c7") 232!9 = !DISubroutineType(types: !10) 233!10 = !{null} 234!11 = !{} 235!12 = !DILocation(line: 1, column: 38, scope: !7) 236!13 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !8, file: !8, line: 5, type: !9, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 237!14 = !DILocation(line: 6, column: 3, scope: !13) 238!15 = !DILocation(line: 3, column: 3, scope: !16, inlinedAt: !17) 239!16 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !8, file: !8, line: 2, type: !9, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 240!17 = distinct !DILocation(line: 7, column: 3, scope: !13) 241!18 = !DILocation(line: 8, column: 1, scope: !13) 242!19 = distinct !DISubprogram(name: "f5", linkageName: "_Z2f5v", scope: !8, file: !8, line: 11, type: !9, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 243!20 = !DILocation(line: 12, column: 1, scope: !19) 244!21 = distinct !DISubprogram(name: "f6", linkageName: "_Z2f6v", scope: !8, file: !8, line: 13, type: !9, scopeLine: 13, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 245!22 = !DILocation(line: 3, column: 3, scope: !16, inlinedAt: !23) 246!23 = distinct !DILocation(line: 14, column: 3, scope: !21) 247!24 = !DILocation(line: 15, column: 1, scope: !21) 248