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https://github.com/RPCS3/llvm-mirror.git
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7d6813a6c8
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
89 lines
4.0 KiB
LLVM
89 lines
4.0 KiB
LLVM
; RUN: llc < %s -filetype=obj -o %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; C++ source to regenerate:
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; $ cat t.cpp
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; struct A {
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; void thiscallcc();
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; };
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; void A::thiscallcc() {}
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; void cdeclcc() {}
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; void __fastcall fastcallcc() {}
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; void __stdcall stdcallcc() {}
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; void __vectorcall vectorcallcc() {}
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; $ clang -g t.cpp -emit-llvm -S -o t.ll -O1
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; CHECK: .debug_abbrev contents:
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; CHECK: [[subroutine_abbrev:\[[0-9]+\]]] DW_TAG_subroutine_type DW_CHILDREN_yes
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; CHECK-NEXT: DW_AT_type DW_FORM_ref4
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; CHECK-NEXT: DW_AT_calling_convention DW_FORM_data1
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_subroutine_type [[subroutine_abbrev]] *
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; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] {{.*}}
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; CHECK-NEXT: DW_AT_calling_convention [DW_FORM_data1] (DW_CC_BORLAND_msfastcall)
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; CHECK: DW_TAG_subprogram [{{.*}}] *
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; CHECK: DW_AT_low_pc
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; CHECK: DW_AT_high_pc
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; CHECK: DW_AT_frame_base
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; CHECK: DW_AT_linkage_name
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; CHECK: DW_AT_name
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; CHECK: DW_AT_decl_file
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; CHECK: DW_AT_decl_line
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; CHECK: DW_AT_calling_convention [DW_FORM_data1] (DW_CC_BORLAND_msfastcall)
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; CHECK: DW_AT_type
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; CHECK: DW_AT_external
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; ModuleID = 't.cpp'
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source_filename = "t.cpp"
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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target triple = "i386-pc-windows-msvc19.0.23918"
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@"\01?fptr@@3P6IHHH@ZA" = global i32 (i32, i32)* @"\01?f@@YIHHH@Z", align 4, !dbg !0
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; Function Attrs: nounwind readnone
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define x86_fastcallcc i32 @"\01?f@@YIHHH@Z"(i32 inreg %a, i32 inreg %b) #0 !dbg !13 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %b, metadata !15, metadata !17), !dbg !18
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tail call void @llvm.dbg.value(metadata i32 %a, metadata !16, metadata !17), !dbg !19
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%add = add nsw i32 %b, %a, !dbg !20
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ret i32 %add, !dbg !21
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind readnone "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!10, !11}
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!llvm.ident = !{!12}
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!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "fptr", linkageName: "\01?fptr@@3P6IHHH@ZA", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.9.0 (trunk 272067)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 32, align: 32)
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!7 = !DISubroutineType(cc: DW_CC_BORLAND_msfastcall, types: !8)
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!8 = !{!9, !9, !9}
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!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !{i32 2, !"Dwarf Version", i32 4}
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!11 = !{i32 2, !"Debug Info Version", i32 3}
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!12 = !{!"clang version 3.9.0 (trunk 272067)"}
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!13 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YIHHH@Z", scope: !3, file: !3, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !14)
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!14 = !{!15, !16}
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!15 = !DILocalVariable(name: "b", arg: 2, scope: !13, file: !3, line: 1, type: !9)
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!16 = !DILocalVariable(name: "a", arg: 1, scope: !13, file: !3, line: 1, type: !9)
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!17 = !DIExpression()
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!18 = !DILocation(line: 1, column: 29, scope: !13)
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!19 = !DILocation(line: 1, column: 22, scope: !13)
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!20 = !DILocation(line: 1, column: 43, scope: !13)
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!21 = !DILocation(line: 1, column: 34, scope: !13)
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