llvm/test/DebugInfo/X86/array.ll

; ModuleID = 'array.c'
;
; From (clang -g -c -O1):
;
; void f(int* p) {
;   p[0] = 42;
; }
;
; int main(int argc, char** argv) {
;   int array[4] = { 0, 1, 2, 3 };
;   f(array);
;   return array[0];
; }
;
; RUN: llc -filetype=asm %s -o - | FileCheck %s
; Test that we only emit register-indirect locations for the array array.
; rdar://problem/14874886
;
; CHECK:     ##DEBUG_VALUE: main:array <- [R{{.*}}+0]
; CHECK-NOT: ##DEBUG_VALUE: main:array <- R{{.*}}
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.9.0"

@main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16

; Function Attrs: nounwind ssp uwtable
define void @f(i32* nocapture %p) #0 {
  tail call void @llvm.dbg.value(metadata !{i32* %p}, i64 0, metadata !11, metadata !{i32 786690}), !dbg !28
  store i32 42, i32* %p, align 4, !dbg !29, !tbaa !30
  ret void, !dbg !34
}

; Function Attrs: nounwind ssp uwtable
define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 {
  %array = alloca [4 x i32], align 16
  tail call void @llvm.dbg.value(metadata !{i32 %argc}, i64 0, metadata !19, metadata !{i32 786690}), !dbg !35
  tail call void @llvm.dbg.value(metadata !{i8** %argv}, i64 0, metadata !20, metadata !{i32 786690}), !dbg !35
  tail call void @llvm.dbg.value(metadata !{[4 x i32]* %array}, i64 0, metadata !21, metadata !{i32 786690}), !dbg !36
  %1 = bitcast [4 x i32]* %array to i8*, !dbg !36
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* bitcast ([4 x i32]* @main.array to i8*), i64 16, i32 16, i1 false), !dbg !36
  tail call void @llvm.dbg.value(metadata !{[4 x i32]* %array}, i64 0, metadata !21, metadata !{i32 786690}), !dbg !36
  %2 = getelementptr inbounds [4 x i32]* %array, i64 0, i64 0, !dbg !37
  call void @f(i32* %2), !dbg !37
  tail call void @llvm.dbg.value(metadata !{[4 x i32]* %array}, i64 0, metadata !21, metadata !{i32 786690}), !dbg !36
  %3 = load i32* %2, align 16, !dbg !38, !tbaa !30
  ret i32 %3, !dbg !38
}

; Function Attrs: nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #1

; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2

attributes #0 = { nounwind ssp uwtable }
attributes #1 = { nounwind }
attributes #2 = { nounwind readnone }

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!25, !26}
!llvm.ident = !{!27}

!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/array.c] [DW_LANG_C99]
!1 = metadata !{metadata !"array.c", metadata !""}
!2 = metadata !{}
!3 = metadata !{metadata !4, metadata !12}
!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f", metadata !"f", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32*)* @f, null, null, metadata !10, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [f]
!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/array.c]
!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{null, metadata !8}
!8 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
!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 !{metadata !11}
!11 = metadata !{i32 786689, metadata !4, metadata !"p", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [p] [line 1]
!12 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 5, metadata !13, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32, i8**)* @main, null, null, metadata !18, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [main]
!13 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !14, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!14 = metadata !{metadata !9, metadata !9, metadata !15}
!15 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
!16 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !17} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from char]
!17 = metadata !{i32 786468, null, null, metadata !"char", i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
!18 = metadata !{metadata !19, metadata !20, metadata !21}
!19 = metadata !{i32 786689, metadata !12, metadata !"argc", metadata !5, i32 16777221, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [argc] [line 5]
!20 = metadata !{i32 786689, metadata !12, metadata !"argv", metadata !5, i32 33554437, metadata !15, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [argv] [line 5]
!21 = metadata !{i32 786688, metadata !12, metadata !"array", metadata !5, i32 6, metadata !22, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [array] [line 6]
!22 = metadata !{i32 786433, null, null, metadata !"", i32 0, i64 128, i64 32, i32 0, i32 0, metadata !9, metadata !23, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 128, align 32, offset 0] [from int]
!23 = metadata !{metadata !24}
!24 = metadata !{i32 786465, i64 0, i64 4}        ; [ DW_TAG_subrange_type ] [0, 3]
!25 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
!26 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
!27 = metadata !{metadata !"clang version 3.5.0 "}
!28 = metadata !{i32 1, i32 0, metadata !4, null}
!29 = metadata !{i32 2, i32 0, metadata !4, null}
!30 = metadata !{metadata !31, metadata !31, i64 0}
!31 = metadata !{metadata !"int", metadata !32, i64 0}
!32 = metadata !{metadata !"omnipotent char", metadata !33, i64 0}
!33 = metadata !{metadata !"Simple C/C++ TBAA"}
!34 = metadata !{i32 3, i32 0, metadata !4, null}
!35 = metadata !{i32 5, i32 0, metadata !12, null}
!36 = metadata !{i32 6, i32 0, metadata !12, null}
!37 = metadata !{i32 7, i32 0, metadata !12, null}
!38 = metadata !{i32 8, i32 0, metadata !12, null} ; [ DW_TAG_imported_declaration ]