Remove all debug info related named mdnodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107323 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/IPO/StripSymbols.cpp b/lib/Transforms/IPO/StripSymbols.cpp
index 4f53f71fa3f60cbc9a8b372f13e1aab99a339df4..ae95ddffcbcfbfcb277968e605c17944620ce5c8 100644 (file)
--- a/lib/Transforms/IPO/StripSymbols.cpp
+++ b/lib/Transforms/IPO/StripSymbols.cpp
@@ -223,16 +223,12 @@ static bool StripDebugInfo(Module &M) {
     Changed = true;
   }
 
-  NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");
-  if (NMD) {
-    Changed = true;
-    NMD->eraseFromParent();
-  }
-
-  NMD = M.getNamedMetadata("llvm.dbg.lv");
-  if (NMD) {
-    Changed = true;
-    NMD->eraseFromParent();
+  for (Module::named_metadata_iterator NMI = M.named_metadata_begin(),
+         NME = M.named_metadata_end(); NMI != NME;) {
+    NamedMDNode *NMD = NMI;
+    ++NMI;
+    if (NMD->getName().startswith("llvm.dbg."))
+      NMD->eraseFromParent();
   }
 
   unsigned MDDbgKind = M.getMDKindID("dbg");

diff --git a/test/Transforms/StripSymbols/2010-06-30-StripDebug.ll b/test/Transforms/StripSymbols/2010-06-30-StripDebug.ll
new file mode 100644 (file)
index 0000000..f5899d2
--- /dev/null
+++ b/test/Transforms/StripSymbols/2010-06-30-StripDebug.ll
@@ -0,0 +1,28 @@
+; RUN: opt -strip-debug < %s | llvm-dis | grep -v llvm.dbg
+
+@x = common global i32 0                          ; <i32*> [#uses=0]
+
+define void @foo() nounwind readnone optsize ssp {
+entry:
+  tail call void @llvm.dbg.value(metadata !9, i64 0, metadata !5), !dbg !10
+  ret void, !dbg !11
+}
+
+declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
+
+!llvm.dbg.sp = !{!0}
+!llvm.dbg.lv.foo = !{!5}
+!llvm.dbg.gv = !{!8}
+
+!0 = metadata !{i32 524334, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", metadata !1, i32 2, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, void ()* @foo} ; [ DW_TAG_subprogram ]
+!1 = metadata !{i32 524329, metadata !"b.c", metadata !"/tmp", metadata !2} ; [ DW_TAG_file_type ]
+!2 = metadata !{i32 524305, i32 0, i32 1, metadata !"b.c", metadata !"/tmp", metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, i1 true, 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 !{null}
+!5 = metadata !{i32 524544, metadata !6, metadata !"y", metadata !1, i32 3, metadata !7} ; [ DW_TAG_auto_variable ]
+!6 = metadata !{i32 524299, metadata !0, i32 2, i32 0} ; [ DW_TAG_lexical_block ]
+!7 = 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 ]
+!8 = metadata !{i32 524340, i32 0, metadata !1, metadata !"x", metadata !"x", metadata !"", metadata !1, i32 1, metadata !7, i1 false, i1 true, i32* @x} ; [ DW_TAG_variable ]
+!9 = metadata !{i32 0}
+!10 = metadata !{i32 3, i32 0, metadata !6, null}
+!11 = metadata !{i32 4, i32 0, metadata !6, null}