llvm-6502/test/DebugInfo/X86/line-info.ll
Diego Novillo 837c54fa7b Support DWARF discriminators in object streamer.
Summary:
This adds support for emitting DWARF path discriminator values in
the object streamer. It also changes the DWARF dumper to show
discriminator values in the line table output.

Reviewers: echristo

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2794

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201427 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-14 19:27:53 +00:00

61 lines
3.6 KiB
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj -O0 < %s > %t
; RUN: llvm-dwarfdump %t | FileCheck %s
; CHECK: [[FILEID:[0-9]+]]]{{.*}}list0.h
; CHECK: [[FILEID]] 0 1 0 0 is_stmt{{$}}
; IR generated from clang -g -emit-llvm with the following source:
; list0.h:
; int foo (int x) {
; return ++x;
; }
; list0.c:
; #include "list0.h"
; int main() {
; }
define i32 @foo(i32 %x) #0 {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata !{i32* %x.addr}, metadata !14), !dbg !15
%0 = load i32* %x.addr, align 4, !dbg !16
%inc = add nsw i32 %0, 1, !dbg !16
store i32 %inc, i32* %x.addr, align 4, !dbg !16
ret i32 %inc, !dbg !16
}
declare void @llvm.dbg.declare(metadata, metadata) #1
define i32 @main() #0 {
entry:
ret i32 0, !dbg !17
}
attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!19}
!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/list0.c] [DW_LANG_C99]
!1 = metadata !{metadata !"list0.c", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
!2 = metadata !{}
!3 = metadata !{metadata !4, metadata !10}
!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @foo, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
!5 = metadata !{metadata !"./list0.h", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
!6 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/scratch/./list0.h]
!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = metadata !{metadata !9, metadata !9}
!9 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!10 = metadata !{i32 786478, metadata !1, metadata !11, metadata !"main", metadata !"main", metadata !"", i32 2, metadata !12, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 2] [def] [main]
!11 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/scratch/list0.c]
!12 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !13, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!13 = metadata !{metadata !9}
!14 = metadata !{i32 786689, metadata !4, metadata !"x", metadata !6, i32 16777217, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [x] [line 1]
!15 = metadata !{i32 1, i32 0, metadata !4, null}
!16 = metadata !{i32 2, i32 0, metadata !4, null}
!17 = metadata !{i32 3, i32 0, metadata !18, null}
!18 = metadata !{i32 786443, metadata !11, metadata !10} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/blaikie/dev/scratch/list0.c]
!19 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}