Make the default triple optional by allowing an empty string

[oota-llvm.git] / test / DebugInfo / Generic / enum.ll

diff --git a/test/DebugInfo/Generic/enum.ll b/test/DebugInfo/Generic/enum.ll
new file mode 100644 (file)
index 0000000..8d91c4e
--- /dev/null
+++ b/test/DebugInfo/Generic/enum.ll
@@ -0,0 +1,80 @@
+; REQUIRES: object-emission
+
+; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
+; RUN: llvm-dwarfdump %t | FileCheck %s
+
+; IR generated from the following code compiled with clang -g:
+; enum e1 { I, J = 0xffffffffU, K = 0xf000000000000000ULL } a;
+; enum e2 { X };
+; void func() {
+;   int b = X;
+; }
+
+; These values were previously being truncated to -1 and 0 respectively.
+
+; CHECK: debug_info contents
+; CHECK: DW_TAG_enumeration_type
+; CHECK-NEXT: DW_AT_name{{.*}} = "e1"
+; CHECK-NOT: NULL
+; CHECK: DW_TAG_enumerator
+; CHECK-NOT: NULL
+; CHECK: DW_TAG_enumerator
+; CHECK-NEXT: DW_AT_name{{.*}} = "J"
+; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]     (4294967295)
+; CHECK-NOT: NULL
+; CHECK: DW_TAG_enumerator
+; CHECK-NEXT: DW_AT_name{{.*}} = "K"
+; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]     (-1152921504606846976)
+
+; Check that we retain enums that aren't referenced by any variables, etc
+; CHECK: DW_TAG_enumeration_type
+; CHECK-NEXT: DW_AT_name{{.*}} = "e2"
+; CHECK-NOT: NULL
+; CHECK: DW_TAG_enumerator
+; CHECK-NEXT: DW_AT_name{{.*}} = "X"
+
+@a = global i64 0, align 8
+
+; Function Attrs: nounwind uwtable
+define void @_Z4funcv() #0 {
+entry:
+  %b = alloca i32, align 4
+  call void @llvm.dbg.declare(metadata i32* %b, metadata !20, metadata !DIExpression()), !dbg !22
+  store i32 0, i32* %b, align 4, !dbg !22
+  ret void, !dbg !23
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
+
+attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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, !24}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !11, subprograms: !12, globals: !17, imports: !11)
+!1 = !DIFile(filename: "enum.cpp", directory: "/tmp")
+!2 = !{!3, !8}
+!3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e1", line: 1, size: 64, align: 64, file: !1, elements: !4)
+!4 = !{!5, !6, !7}
+!5 = !DIEnumerator(name: "I", value: 0) ; [ DW_TAG_enumerator ] [I :: 0]
+!6 = !DIEnumerator(name: "J", value: 4294967295) ; [ DW_TAG_enumerator ] [J :: 4294967295]
+!7 = !DIEnumerator(name: "K", value: -1152921504606846976) ; [ DW_TAG_enumerator ] [K :: 17293822569102704640]
+!8 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e2", line: 2, size: 32, align: 32, file: !1, elements: !9)
+!9 = !{!10}
+!10 = !DIEnumerator(name: "X", value: 0) ; [ DW_TAG_enumerator ] [X :: 0]
+!11 = !{}
+!12 = !{!13}
+!13 = distinct !DISubprogram(name: "func", linkageName: "_Z4funcv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !14, type: !15, function: void ()* @_Z4funcv, variables: !11)
+!14 = !DIFile(filename: "enum.cpp", directory: "/tmp")
+!15 = !DISubroutineType(types: !16)
+!16 = !{null}
+!17 = !{!18}
+!18 = !DIGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !14, type: !3, variable: i64* @a)
+!19 = !{i32 2, !"Dwarf Version", i32 3}
+!20 = !DILocalVariable(name: "b", line: 4, scope: !13, file: !14, type: !21)
+!21 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!22 = !DILocation(line: 4, scope: !13)
+!23 = !DILocation(line: 5, scope: !13)
+!24 = !{i32 1, !"Debug Info Version", i32 3}