summaryrefslogtreecommitdiffstats
path: root/llvm/test/DebugInfo/X86/empty-array.ll
diff options
context:
space:
mode:
authorBill Wendling <isanbard@gmail.com>2012-12-04 06:20:49 +0000
committerBill Wendling <isanbard@gmail.com>2012-12-04 06:20:49 +0000
commitbfc0e5725f94a52e92d8f53ab5285a8a0eb1a314 (patch)
tree90d7edc33226261d8deab66915dd823edff6747b /llvm/test/DebugInfo/X86/empty-array.ll
parent628c2dba60ea6978ba9aa9292c8a7e2064cbd0ef (diff)
downloadbcm5719-llvm-bfc0e5725f94a52e92d8f53ab5285a8a0eb1a314.tar.gz
bcm5719-llvm-bfc0e5725f94a52e92d8f53ab5285a8a0eb1a314.zip
Add a 'count' field to the DWARF subrange.
The count field is necessary because there isn't a difference between the 'lo' and 'hi' attributes for a one-element array and a zero-element array. When the count is '0', we know that this is a zero-element array. When it's >=1, then it's a normal constant sized array. When it's -1, then the array is unbounded. llvm-svn: 169218
Diffstat (limited to 'llvm/test/DebugInfo/X86/empty-array.ll')
-rw-r--r--llvm/test/DebugInfo/X86/empty-array.ll44
1 files changed, 44 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/X86/empty-array.ll b/llvm/test/DebugInfo/X86/empty-array.ll
new file mode 100644
index 00000000000..7258af2f3d4
--- /dev/null
+++ b/llvm/test/DebugInfo/X86/empty-array.ll
@@ -0,0 +1,44 @@
+; RUN: llc -mtriple=x86_64-apple-darwin -O0 -filetype=obj -o %t < %s
+; RUN: llvm-dwarfdump %t | FileCheck %s
+; <rdar://problem/12566646>
+
+%class.A = type { [0 x i32] }
+
+@a = global %class.A zeroinitializer, align 4
+
+; CHECK: 0x0000002d: DW_TAG_base_type [3]
+; CHECK-NEXT: 0x0000002e: DW_AT_byte_size [DW_FORM_data1] (0x04)
+; CHECK-NEXT: 0x0000002f: DW_AT_encoding [DW_FORM_data1] (0x05)
+
+; CHECK: 0x00000030: DW_TAG_array_type [4] *
+; CHECK-NEXT: 0x00000031: DW_AT_type [DW_FORM_ref4] (cu + 0x0026 => {0x00000026})
+
+; CHECK: 0x00000035: DW_TAG_subrange_type [5]
+; CHECK-NEXT: 0x00000036: DW_AT_type [DW_FORM_ref4] (cu + 0x002d => {0x0000002d})
+
+; CHECK: 0x00000048: DW_TAG_member [8]
+; CHECK-NEXT: 0x00000049: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000003f] = "x")
+; CHECK-NEXT: 0x0000004d: DW_AT_type [DW_FORM_ref4] (cu + 0x0030 => {0x00000030})
+
+!llvm.dbg.cu = !{!0}
+
+!0 = metadata !{i32 786449, i32 0, i32 4, metadata !"t.cpp", metadata !"/Volumes/Sandbox/llvm", metadata !"clang version 3.3 (trunk 169136)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3} ; [ DW_TAG_compile_unit ] [/Volumes/Sandbox/llvm/t.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !2}
+!2 = metadata !{i32 0}
+!3 = metadata !{metadata !4}
+!4 = metadata !{metadata !5}
+!5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, %class.A* @a} ; [ DW_TAG_variable ] [a] [line 1] [def]
+!6 = metadata !{i32 786473, metadata !"t.cpp", metadata !"/Volumes/Sandbox/llvm", null} ; [ DW_TAG_file_type ]
+!7 = metadata !{i32 786434, null, metadata !"A", metadata !6, i32 1, i64 0, i64 32, i32 0, i32 0, null, metadata !8, i32 0, null, null} ; [ DW_TAG_class_type ] [A] [line 1, size 0, align 32, offset 0] [from ]
+!8 = metadata !{metadata !9, metadata !14}
+!9 = metadata !{i32 786445, metadata !7, metadata !"x", metadata !6, i32 1, i64 0, i64 0, i64 0, i32 1, metadata !10} ; [ DW_TAG_member ] [x] [line 1, size 0, align 0, offset 0] [private] [from ]
+!10 = metadata !{i32 786433, null, metadata !"", null, i32 0, i64 0, i64 32, i32 0, i32 0, metadata !11, metadata !12, i32 0, i32 0} ; [ DW_TAG_array_type ] [line 0, size 0, align 32, offset 0] [from int]
+!11 = metadata !{i32 786468, null, metadata !"int", null, 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]
+!12 = metadata !{metadata !13}
+!13 = metadata !{i32 786465, i64 1, i64 0, i64 -1} ; [ DW_TAG_subrange_type ] [1, 0]
+!14 = metadata !{i32 786478, i32 0, metadata !7, metadata !"A", metadata !"A", metadata !"", metadata !6, i32 1, metadata !15, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !18, i32 1} ; [ DW_TAG_subprogram ] [line 1] [A]
+!15 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !16, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!16 = metadata !{null, metadata !17}
+!17 = metadata !{i32 786447, i32 0, metadata !"", i32 0, i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !7} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from A]
+!18 = metadata !{metadata !19}
+!19 = metadata !{i32 786468} ; [ DW_TAG_base_type ] [line 0, size 0, align 0, offset 0]
OpenPOWER on IntegriCloud