05782218ab
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
45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
; REQUIRES: object-emission
|
|
|
|
; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
|
|
; RUN: llvm-dwarfdump %t | FileCheck %s
|
|
|
|
; Also test that the null streamer doesn't crash with debug info.
|
|
; RUN: %llc_dwarf -O0 -filetype=null < %s
|
|
|
|
; generated from the following source compiled to bitcode with clang -g -O1
|
|
; static int i;
|
|
; int main() {
|
|
; (void)&i;
|
|
; }
|
|
|
|
; CHECK: debug_info contents
|
|
; CHECK: DW_TAG_variable
|
|
|
|
source_filename = "test/DebugInfo/Generic/global.ll"
|
|
|
|
; Function Attrs: nounwind readnone uwtable
|
|
define i32 @main() #0 !dbg !9 {
|
|
entry:
|
|
ret i32 0, !dbg !12
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!7, !8}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.4 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !3, imports: !2)
|
|
!1 = !DIFile(filename: "global.cpp", directory: "/tmp")
|
|
!2 = !{}
|
|
!3 = !{!4}
|
|
!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
|
|
!5 = !DIGlobalVariable(name: "i", linkageName: "_ZL1i", scope: null, file: !1, line: 1, type: !6, isLocal: true, isDefinition: true)
|
|
!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!7 = !{i32 2, !"Dwarf Version", i32 3}
|
|
!8 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!9 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 2, type: !10, isLocal: false, isDefinition: true, scopeLine: 2, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2)
|
|
!10 = !DISubroutineType(types: !11)
|
|
!11 = !{!6}
|
|
!12 = !DILocation(line: 4, scope: !9)
|
|
|