llvm-6502/test/DebugInfo/X86/aligned_stack_var.ll
Duncan P. N. Exon Smith 37ac8d3622 IR: Move MDLocation into place
This commit moves `MDLocation`, finishing off PR21433.  There's an
accompanying clang commit for frontend testcases.  I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.

This changes the schema for `DebugLoc` and `DILocation` from:

    !{i32 3, i32 7, !7, !8}

to:

    !MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)

Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226048 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 22:27:36 +00:00

44 lines
1.8 KiB
LLVM

; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -filetype=obj -o %t
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; If stack is realigned, we shouldn't describe locations of local
; variables by giving offset from the frame pointer (%rbp):
; push %rpb
; mov %rsp,%rbp
; and ALIGNMENT,%rsp ; (%rsp and %rbp are different now)
; It's better to use offset from %rsp instead.
; DW_AT_location of variable "x" shouldn't be equal to
; (DW_OP_fbreg: .*): DW_OP_fbreg has code 0x91
; CHECK: {{0x.* DW_TAG_variable}}
; CHECK-NOT: {{DW_AT_location.*DW_FORM_block1.*0x.*91}}
; CHECK: NULL
define void @_Z3runv() nounwind uwtable {
entry:
%x = alloca i32, align 32
call void @llvm.dbg.declare(metadata i32* %x, metadata !9, metadata !{!"0x102"}), !dbg !12
ret void, !dbg !13
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!15}
!0 = !{!"0x11\004\00clang version 3.2 (trunk 155696:155697) (llvm/trunk 155696)\000\00\000\00\000", !14, !1, !1, !3, !1, !1} ; [ DW_TAG_compile_unit ]
!1 = !{}
!3 = !{!5}
!5 = !{!"0x2e\00run\00run\00_Z3runv\001\000\001\000\006\00256\000\001", !14, !6, !7, null, void ()* @_Z3runv, null, null, !1} ; [ DW_TAG_subprogram ]
!6 = !{!"0x29", !14} ; [ DW_TAG_file_type ]
!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = !{null}
!9 = !{!"0x100\00x\002\000", !10, !6, !11} ; [ DW_TAG_auto_variable ]
!10 = !{!"0xb\001\0012\000", !14, !5} ; [ DW_TAG_lexical_block ]
!11 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
!12 = !MDLocation(line: 2, column: 7, scope: !10)
!13 = !MDLocation(line: 3, column: 1, scope: !10)
!14 = !{!"test.cc", !"/home/samsonov/debuginfo"}
!15 = !{i32 1, !"Debug Info Version", i32 2}