If FE forgot to provide a file name (usually it uses "stdin" as name in such situatio...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114119 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index c886a5ecc6153e74504d40e311d6e18ac482a5f2..8e3c1f12ff188341fce9e747c31809632bd621c6 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1750,6 +1750,10 @@ unsigned DwarfDebug::GetOrCreateSourceID(StringRef DirName, StringRef FileName){
   unsigned DId;
   assert (DirName.empty() == false && "Invalid directory name!");
 
+  // If FE did not provide a file name, then assume stdin.
+  if (FileName.empty())
+    return GetOrCreateSourceID(DirName, "<stdin>");
+
   StringMap<unsigned>::iterator DI = DirectoryIdMap.find(DirName);
   if (DI != DirectoryIdMap.end()) {
     DId = DI->getValue();

diff --git a/test/DebugInfo/2010-09-16-EmptyFilename.ll b/test/DebugInfo/2010-09-16-EmptyFilename.ll
new file mode 100644 (file)
index 0000000..66c1e88
--- /dev/null
+++ b/test/DebugInfo/2010-09-16-EmptyFilename.ll
@@ -0,0 +1,31 @@
+; RUN: llc -O0 < %s - | FileCheck %s
+; Radar 8286101
+; CHECK: File size
+; CHECK-NEXT: stdin
+; CHECK-NEXT: Directory
+
+define i32 @foo() nounwind ssp {
+entry:
+  ret i32 42, !dbg !8
+}
+
+define i32 @bar() nounwind ssp {
+entry:
+  ret i32 21, !dbg !10
+}
+
+!llvm.dbg.sp = !{!0, !6}
+
+!0 = metadata !{i32 524334, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", metadata !1, i32 53, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false, i32 ()* @foo} ; [ DW_TAG_subprogram ]
+!1 = metadata !{i32 524329, metadata !"", metadata !"/private/tmp", metadata !2} ; [ DW_TAG_file_type ]
+!2 = metadata !{i32 524305, i32 0, i32 12, metadata !"bug.c", metadata !"/private/tmp", metadata !"clang version 2.9 (trunk 114084)", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
+!3 = metadata !{i32 524309, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null} ; [ DW_TAG_subroutine_type ]
+!4 = metadata !{metadata !5}
+!5 = metadata !{i32 524324, metadata !1, metadata !"int", metadata !1, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
+!6 = metadata !{i32 524334, i32 0, metadata !7, metadata !"bar", metadata !"bar", metadata !"bar", metadata !7, i32 4, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false, i32 ()* @bar} ; [ DW_TAG_subprogram ]
+!7 = metadata !{i32 524329, metadata !"bug.c", metadata !"/private/tmp", metadata !2} ; [ DW_TAG_file_type ]
+!8 = metadata !{i32 53, i32 13, metadata !9, null}
+!9 = metadata !{i32 524299, metadata !0, i32 53, i32 11, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]
+!10 = metadata !{i32 4, i32 13, metadata !11, null}
+!11 = metadata !{i32 524299, metadata !12, i32 4, i32 13, metadata !7, i32 2} ; [ DW_TAG_lexical_block ]
+!12 = metadata !{i32 524299, metadata !6, i32 4, i32 11, metadata !7, i32 1} ; [ DW_TAG_lexical_block ]