73 lines
3.6 KiB
LLVM
73 lines
3.6 KiB
LLVM
; RUN: llc < %s -filetype=obj -o - | llvm-dwarfdump -
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; To regenerate this file, use approximately the following C code:
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; int* globl;
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; void baz(int arg) {
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; int locl;
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; globl = &locl;
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; }
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; CHECK: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_low_pc
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; CHECK-NEXT: DW_AT_high_pc
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;; Check that we fall back to the default frame base (the global)
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; CHECK-NEXT: DW_AT_frame_base (DW_OP_WASM_location_int 0x3 0x0, DW_OP_stack_value)
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; TODO: Find a more-reduced test case for The fix in WebAssemblyRegColoring
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; ModuleID = 'debugtest-opt.c'
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source_filename = "debugtest-opt.c"
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32"
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@globl = hidden local_unnamed_addr global i32* null, align 4, !dbg !0
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; Function Attrs: nounwind writeonly
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define hidden void @baz(i32 %arg) local_unnamed_addr #0 !dbg !12 {
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entry:
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%locl = alloca i32, align 4
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call void @llvm.dbg.value(metadata i32 %arg, metadata !16, metadata !DIExpression()), !dbg !18
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%0 = bitcast i32* %locl to i8*, !dbg !19
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store i32* %locl, i32** @globl, align 4, !dbg !20, !tbaa !21
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ret void, !dbg !25
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { nounwind writeonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { argmemonly nounwind willreturn }
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attributes #2 = { nounwind readnone speculatable willreturn }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!8, !9, !10}
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!llvm.ident = !{!11}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "globl", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git ee80f8bef31e0f98c9a0e1d79dc5f1ff51ed9e3a)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
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!3 = !DIFile(filename: "debugtest-opt.c", directory: "/s/llvm-upstream")
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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)
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = !{i32 7, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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!10 = !{i32 1, !"wchar_size", i32 4}
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!11 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git ee80f8bef31e0f98c9a0e1d79dc5f1ff51ed9e3a)"}
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!12 = distinct !DISubprogram(name: "baz", scope: !3, file: !3, line: 14, type: !13, scopeLine: 14, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !15)
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!13 = !DISubroutineType(types: !14)
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!14 = !{null, !7}
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!15 = !{!16, !17}
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!16 = !DILocalVariable(name: "arg", arg: 1, scope: !12, file: !3, line: 14, type: !7)
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!17 = !DILocalVariable(name: "locl", scope: !12, file: !3, line: 15, type: !7)
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!18 = !DILocation(line: 0, scope: !12)
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!19 = !DILocation(line: 15, column: 3, scope: !12)
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!20 = !DILocation(line: 16, column: 9, scope: !12)
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!21 = !{!22, !22, i64 0}
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!22 = !{!"any pointer", !23, i64 0}
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!23 = !{!"omnipotent char", !24, i64 0}
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!24 = !{!"Simple C/C++ TBAA"}
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!25 = !DILocation(line: 17, column: 1, scope: !12)
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