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[DWARF][test] Test all the call-site realted attrs
Adding the test for the call site encoding in DWARF5 vs GNU extensions. Some of the attributes were not covered by any test. Differential Revision: https://reviews.llvm.org/D73266
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llvm/test/DebugInfo/MIR/X86/call-site-gnu-vs-dwarf5-attrs.mir
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| # Test the call site encoding in DWARF5 vs GNU extensions. | ||
| # | ||
| # RUN: llc -dwarf-version 4 -debugger-tune=gdb -debug-entry-values -filetype=obj \ | ||
| # RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \ | ||
| # RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-GNU | ||
| # | ||
| # RUN: llc -dwarf-version 5 -debugger-tune=lldb -debug-entry-values -filetype=obj \ | ||
| # RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \ | ||
| # RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5 | ||
| # | ||
| # RUN: llc -dwarf-version 5 -debug-entry-values -filetype=obj \ | ||
| # RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \ | ||
| # RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5 | ||
| # | ||
| # This is based on the following reproducer: | ||
| # | ||
| # extern void fn(); | ||
| # extern void fn2(int x); | ||
| # extern int fn3(); | ||
| # | ||
| # int fn1(int (*fn4) ()) { | ||
| # fn(); | ||
| # fn2(5); | ||
| # | ||
| # int x = (*fn4)(); | ||
| # if (!x) | ||
| # return fn3(); | ||
| # else | ||
| # return -1; | ||
| # } | ||
| # | ||
| # Check GNU extensions: | ||
| # | ||
| # CHECK-GNU: DW_TAG_subprogram | ||
| # CHECK-GNU: DW_AT_GNU_all_call_sites (true) | ||
| # CHECK-GNU: DW_TAG_GNU_call_site | ||
| # CHECK-GNU-NEXT: DW_AT_abstract_origin | ||
| # CHECK-GNU-NEXT: DW_AT_low_pc | ||
| # CHECK-GNU: DW_TAG_GNU_call_site_parameter | ||
| # CHECK-GNU-NEXT: DW_AT_location | ||
| # CHECK-GNU-NEXT: DW_AT_GNU_call_site_value | ||
| # CHECK-GNU: DW_TAG_GNU_call_site | ||
| # CHECK-GNU-NEXT: DW_AT_GNU_call_site_target | ||
| # CHECK-GNU-NEXT: DW_AT_low_pc | ||
| # CHECK-GNU: DW_TAG_GNU_call_site | ||
| # CHECK-GNU-NEXT: DW_AT_abstract_origin | ||
| # CHECK-GNU-NEXT: DW_AT_GNU_tail_call | ||
| # | ||
| # | ||
| # Check DWARF 5: | ||
| # | ||
| # CHECK-DWARF5: DW_TAG_subprogram | ||
| # CHECK-DWARF5: DW_AT_call_all_calls (true) | ||
| # CHECK-DWARF5: DW_TAG_call_site | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_origin | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_return_pc | ||
| # CHECK-DWARF5: DW_TAG_call_site_parameter | ||
| # CHECK-DWARF5-NEXT: DW_AT_location | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_value | ||
| # CHECK-DWARF5: DW_TAG_call_site | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_target | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_return_pc | ||
| # CHECK-DWARF5: DW_TAG_call_site | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_origin | ||
| # CHECK-DWARF5-NEXT: DW_AT_call_tail_call | ||
| # | ||
| --- | | ||
| ; ModuleID = 'call-site-attrs.c' | ||
| source_filename = "call-site-attrs.c" | ||
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" | ||
| target triple = "x86_64-unknown-linux-gnu" | ||
| ; Function Attrs: nounwind uwtable | ||
| define dso_local i32 @fn1(i32 (...)* nocapture %fn4) local_unnamed_addr !dbg !18 { | ||
| entry: | ||
| call void @llvm.dbg.value(metadata i32 (...)* %fn4, metadata !23, metadata !DIExpression()), !dbg !25 | ||
| tail call void (...) @fn(), !dbg !26 | ||
| tail call void @fn2(i32 5), !dbg !27 | ||
| %call = tail call i32 (...) %fn4(), !dbg !28 | ||
| call void @llvm.dbg.value(metadata i32 %call, metadata !24, metadata !DIExpression()), !dbg !25 | ||
| %tobool = icmp eq i32 %call, 0, !dbg !29 | ||
| br i1 %tobool, label %if.then, label %cleanup, !dbg !31 | ||
|
|
||
| if.then: ; preds = %entry | ||
| %call1 = tail call i32 (...) @fn3(), !dbg !32 | ||
| ret i32 %call1, !dbg !33 | ||
|
|
||
| cleanup: ; preds = %entry | ||
| ret i32 -1, !dbg !33 | ||
| } | ||
| declare !dbg !4 dso_local void @fn(...) local_unnamed_addr | ||
| declare !dbg !7 dso_local void @fn2(i32) local_unnamed_addr | ||
| declare !dbg !11 dso_local i32 @fn3(...) local_unnamed_addr | ||
| ; Function Attrs: nounwind readnone speculatable willreturn | ||
| declare void @llvm.dbg.value(metadata, metadata, metadata) | ||
|
|
||
| !llvm.dbg.cu = !{!0} | ||
| !llvm.module.flags = !{!14, !15, !16} | ||
| !llvm.ident = !{!17} | ||
|
|
||
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None) | ||
| !1 = !DIFile(filename: "call-site-attrs.c", directory: "/") | ||
| !2 = !{} | ||
| !3 = !{!4, !7, !11} | ||
| !4 = !DISubprogram(name: "fn", scope: !1, file: !1, line: 1, type: !5, spFlags: DISPFlagOptimized, retainedNodes: !2) | ||
| !5 = !DISubroutineType(types: !6) | ||
| !6 = !{null, null} | ||
| !7 = !DISubprogram(name: "fn2", scope: !1, file: !1, line: 2, type: !8, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) | ||
| !8 = !DISubroutineType(types: !9) | ||
| !9 = !{null, !10} | ||
| !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) | ||
| !11 = !DISubprogram(name: "fn3", scope: !1, file: !1, line: 3, type: !12, spFlags: DISPFlagOptimized, retainedNodes: !2) | ||
| !12 = !DISubroutineType(types: !13) | ||
| !13 = !{!10, null} | ||
| !14 = !{i32 7, !"Dwarf Version", i32 4} | ||
| !15 = !{i32 2, !"Debug Info Version", i32 3} | ||
| !16 = !{i32 1, !"wchar_size", i32 4} | ||
| !17 = !{!"clang version 11.0.0"} | ||
| !18 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 5, type: !19, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !22) | ||
| !19 = !DISubroutineType(types: !20) | ||
| !20 = !{!10, !21} | ||
| !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) | ||
| !22 = !{!23, !24} | ||
| !23 = !DILocalVariable(name: "fn4", arg: 1, scope: !18, file: !1, line: 5, type: !21) | ||
| !24 = !DILocalVariable(name: "x", scope: !18, file: !1, line: 9, type: !10) | ||
| !25 = !DILocation(line: 0, scope: !18) | ||
| !26 = !DILocation(line: 6, column: 3, scope: !18) | ||
| !27 = !DILocation(line: 7, column: 3, scope: !18) | ||
| !28 = !DILocation(line: 9, column: 11, scope: !18) | ||
| !29 = !DILocation(line: 10, column: 8, scope: !30) | ||
| !30 = distinct !DILexicalBlock(scope: !18, file: !1, line: 10, column: 7) | ||
| !31 = !DILocation(line: 10, column: 7, scope: !18) | ||
| !32 = !DILocation(line: 11, column: 12, scope: !30) | ||
| !33 = !DILocation(line: 14, column: 1, scope: !18) | ||
|
|
||
| ... | ||
| --- | ||
| name: fn1 | ||
| callSites: | ||
| - { bb: 0, offset: 7, fwdArgRegs: [] } | ||
| - { bb: 0, offset: 9, fwdArgRegs: | ||
| - { arg: 0, reg: '$edi' } } | ||
| - { bb: 0, offset: 11, fwdArgRegs: [] } | ||
| - { bb: 2, offset: 7, fwdArgRegs: [] } | ||
| body: | | ||
| bb.0.entry: | ||
| successors: %bb.2(0x30000000), %bb.1(0x50000000) | ||
| liveins: $rdi, $rbx | ||
| DBG_VALUE $rdi, $noreg, !23, !DIExpression(), debug-location !25 | ||
| frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp | ||
| CFI_INSTRUCTION def_cfa_offset 16 | ||
| CFI_INSTRUCTION offset $rbx, -16 | ||
| $rbx = MOV64rr $rdi | ||
| DBG_VALUE $rbx, $noreg, !23, !DIExpression(), debug-location !25 | ||
| dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !26 | ||
| CALL64pcrel32 @fn, csr_64, implicit $rsp, implicit $ssp, implicit $al, implicit-def $rsp, implicit-def $ssp, debug-location !26 | ||
| $edi = MOV32ri 5, debug-location !27 | ||
| CALL64pcrel32 @fn2, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit-def $rsp, implicit-def $ssp, debug-location !27 | ||
| dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !28 | ||
| CALL64r killed renamable $rbx, csr_64, implicit $rsp, implicit $ssp, implicit $al, implicit-def $rsp, implicit-def $ssp, implicit-def $eax, debug-location !28 | ||
| DBG_VALUE $eax, $noreg, !24, !DIExpression(), debug-location !25 | ||
| TEST32rr killed renamable $eax, renamable $eax, implicit-def $eflags, debug-location !29 | ||
| JCC_1 %bb.2, 4, implicit $eflags, debug-location !31 | ||
| bb.1.cleanup: | ||
| DBG_VALUE $eax, $noreg, !24, !DIExpression(), debug-location !25 | ||
| DBG_VALUE $rbx, $noreg, !23, !DIExpression(), debug-location !25 | ||
| $eax = MOV32ri -1, debug-location !33 | ||
| $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !33 | ||
| DBG_VALUE $rdi, $noreg, !23, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !25 | ||
| CFI_INSTRUCTION def_cfa_offset 8, debug-location !33 | ||
| RETQ $eax, debug-location !33 | ||
| bb.2.if.then: | ||
| CFI_INSTRUCTION def_cfa_offset 16, debug-location !32 | ||
| DBG_VALUE $eax, $noreg, !24, !DIExpression(), debug-location !25 | ||
| DBG_VALUE $rbx, $noreg, !23, !DIExpression(), debug-location !25 | ||
| dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !32 | ||
| $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !32 | ||
| DBG_VALUE $rdi, $noreg, !23, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !25 | ||
| CFI_INSTRUCTION def_cfa_offset 8, debug-location !32 | ||
| TAILJMPd64 @fn3, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit $al, debug-location !32 | ||
| ... |