llvm/test/DebugInfo/X86/aligned_stack_var.ll

; 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}