1 files changed, 55 insertions, 0 deletions
diff --git a/test/DebugInfo/X86/float_const.ll b/test/DebugInfo/X86/float_const.ll
new file mode 100644
index 0000000000000..6e99ffcc1f21f
--- /dev/null
+++ b/test/DebugInfo/X86/float_const.ll
@@ -0,0 +1,55 @@
+; RUN: llc < %s -filetype=obj | llvm-dwarfdump -debug-dump=info - | FileCheck %s
+; from (at -Os):
+; void foo() {
+;   float a = 3.14;
+;   *(int *)&a = 0;
+; }
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.10.0"
+
+; Function Attrs: nounwind optsize readnone uwtable
+define void @foo() #0 {
+entry:
+  tail call void @llvm.dbg.declare(metadata float* undef, metadata !13, metadata !19), !dbg !20
+  tail call void @llvm.dbg.value(metadata i32 1078523331, i64 0, metadata !13, metadata !19), !dbg !20
+  tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !13, metadata !19), !dbg !20
+; CHECK:  DW_AT_const_value [DW_FORM_sdata]    (0)
+; CHECK-NEXT: DW_AT_name {{.*}}"a"
+  ret void, !dbg !21
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
+
+attributes #0 = { nounwind optsize readnone uwtable }
+attributes #1 = { nounwind readnone }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!15, !16, !17}
+!llvm.ident = !{!18}
+
+!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 227686)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !6, globals: !2, imports: !2)
+!1 = !DIFile(filename: "foo.c", directory: "")
+!2 = !{}
+!3 = !{!4}
+!4 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !5)
+!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!6 = !{!7}
+!7 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: true, scopeLine: 1, file: !8, scope: !9, type: !10, function: void ()* @foo, variables: !12)
+!8 = !DIFile(filename: "foo.c", directory: "")
+!9 = !DIFile(filename: "foo.c", directory: "")
+!10 = !DISubroutineType(types: !11)
+!11 = !{null}
+!12 = !{!13}
+!13 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "a", line: 2, scope: !7, file: !9, type: !14)
+!14 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
+!15 = !{i32 2, !"Dwarf Version", i32 2}
+!16 = !{i32 2, !"Debug Info Version", i32 3}
+!17 = !{i32 1, !"PIC Level", i32 2}
+!18 = !{!"clang version 3.7.0 (trunk 227686)"}
+!19 = !DIExpression()
+!20 = !DILocation(line: 2, column: 9, scope: !7)
+!21 = !DILocation(line: 4, column: 1, scope: !7)