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This patch extends DIModule Debug metadata in LLVM to support Fortran modules. DIModule is extended to contain File and Line fields, these fields will be used by Flang FE to create debug information necessary for representing Fortran modules at IR level. Furthermore DW_TAG_module is also extended to contain these fields. If these fields are missing, debuggers like GDB won't be able to show Fortran modules information correctly. Reviewed By: aprantl Differential Revision: https://reviews.llvm.org/D79484
35 lines
1.4 KiB
LLVM
35 lines
1.4 KiB
LLVM
; RUN: llvm-dis -o - %s.bc | FileCheck %s
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; CHECK: DIModule(scope: !4, name: "dummy", file: !3, line: 2)
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; ModuleID = 'DIModule-fortran-module.bc'
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source_filename = "/tmp/module-b198fa.ll"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct_dummy_0_ = type <{ [4 x i8] }>
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@_dummy_0_ = common global %struct_dummy_0_ zeroinitializer, align 64, !dbg !0
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; Function Attrs: noinline
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define float @dummy_() #0 {
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.L.entry:
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ret float undef
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}
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attributes #0 = { noinline "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" }
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!llvm.module.flags = !{!8, !9}
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!llvm.dbg.cu = !{!4}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "foo", scope: !2, file: !3, type: !7, isLocal: false, isDefinition: true)
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!2 = !DIModule(scope: !4, name: "dummy", file: !3, line: 2)
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!3 = !DIFile(filename: "module.f90", directory: "/fortran")
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!4 = distinct !DICompileUnit(language: DW_LANG_Fortran90, file: !3, producer: " F90 Flang - 1.5 2017-05-01", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6, imports: !5)
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!5 = !{}
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!6 = !{!0}
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!7 = !DIBasicType(name: "integer", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !{i32 2, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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