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llvm-mirror/test/DebugInfo/X86/nodebug.ll
Jonas Devlieghere ebeda624e9 [MC/Dwarf] Unclamp DWARF linetables format on Darwin.
In r319995, we fixed the line table format to version 2 on Darwin
because dsymutil didn't yet understand the new format which caused test
failures for the LLDB bots. This has been resolved in the meantime so
there's no reason to keep this limitation.

rdar://problem/35968332

llvm-svn: 342136
2018-09-13 13:13:50 +00:00

58 lines
2.2 KiB
LLVM

; REQUIRES: object-emission
; RUN: llc < %s -filetype=obj -mtriple=x86_64-apple-darwin | llvm-dwarfdump -v - | FileCheck %s
; Test that a nodebug function (a function not appearing in the debug info IR
; metadata subprogram list) with DebugLocs on its IR doesn't cause crashes/does
; the right thing.
; Build with clang from the following:
; extern int i;
; inline __attribute__((always_inline)) void f1() {
; i = 3;
; }
;
; __attribute__((nodebug)) void f2() {
; f1();
; }
; Check that there's no DW_TAG_subprogram, not even for the 'f2' function.
; CHECK: .debug_info contents:
; CHECK: DW_TAG_compile_unit
; CHECK-NOT: DW_TAG_subprogram
; Expect no line table entry since there are no functions and file references in this compile unit
; CHECK: .debug_line contents:
; CHECK: Line table prologue:
; CHECK: total_length: 0x0000001a
; CHECK-NOT: file_names[
@i = external global i32
; Function Attrs: uwtable
define void @_Z2f2v() #0 {
entry:
store i32 3, i32* @i, align 4, !dbg !11
ret void
}
attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!8, !9}
!llvm.ident = !{!10}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !12, globals: !2, imports: !2)
!1 = !DIFile(filename: "nodebug.cpp", directory: "/tmp/dbginfo")
!2 = !{}
!4 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2)
!5 = !DIFile(filename: "nodebug.cpp", directory: "/tmp/dbginfo")
!6 = !DISubroutineType(types: !7)
!7 = !{null}
!8 = !{i32 2, !"Dwarf Version", i32 4}
!9 = !{i32 2, !"Debug Info Version", i32 3}
!10 = !{!"clang version 3.5.0 "}
!11 = !DILocation(line: 3, scope: !4)
!12 = !{!13}
!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)