[llvm-commits] [llvm] r112072 - in /llvm/trunk: lib/Transforms/IPO/StripSymbols.cpp test/Transforms/StripSymbols/2010-08-25-crash.ll

[Devang Patel]

Author: dpatel
Date: Wed Aug 25 13:52:02 2010
New Revision: 112072

URL: http://llvm.org/viewvc/llvm-project?rev=112072&view=rev
Log:
DIGlobalVariable can be used to encode debug info for  globals that are directly folded into a constant by FE.

Added:
    llvm/trunk/test/Transforms/StripSymbols/2010-08-25-crash.ll
Modified:
    llvm/trunk/lib/Transforms/IPO/StripSymbols.cpp

Modified: llvm/trunk/lib/Transforms/IPO/StripSymbols.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/StripSymbols.cpp?rev=112072&r1=112071&r2=112072&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/StripSymbols.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/StripSymbols.cpp Wed Aug 25 13:52:02 2010
@@ -350,8 +350,8 @@
 
     for (SmallVector<MDNode *, 8>::iterator I = MDs.begin(),
            E = MDs.end(); I != E; ++I) {
-      if (M.getGlobalVariable(DIGlobalVariable(*I).getGlobal()->getName(), 
-                              true)) {
+      GlobalVariable *GV = DIGlobalVariable(*I).getGlobal();
+      if (GV && M.getGlobalVariable(GV->getName(), true)) {
         if (!NMD)
           NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
         NMD->addOperand(*I);

Added: llvm/trunk/test/Transforms/StripSymbols/2010-08-25-crash.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/StripSymbols/2010-08-25-crash.ll?rev=112072&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/StripSymbols/2010-08-25-crash.ll (added)
+++ llvm/trunk/test/Transforms/StripSymbols/2010-08-25-crash.ll Wed Aug 25 13:52:02 2010
@@ -0,0 +1,19 @@
+; RUN: opt -strip-dead-debug-info -disable-output %s
+define i32 @foo() nounwind ssp {
+entry:
+  ret i32 0, !dbg !8
+}
+
+!llvm.dbg.sp = !{!0}
+!llvm.dbg.gv = !{!6}
+
+!0 = metadata !{i32 524334, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", metadata !1, i32 3, 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 !"/tmp/a.c", metadata !"/Volumes/Lalgate/clean/D.CW", metadata !2} ; [ DW_TAG_file_type ]
+!2 = metadata !{i32 524305, i32 0, i32 12, metadata !"/tmp/a.c", metadata !"/Volumes/Lalgate/clean/D.CW", metadata !"clang version 2.8 (trunk 112062)", 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 524340, i32 0, metadata !1, metadata !"i", metadata !"i", metadata !"i", metadata !1, i32 2, metadata !7, i1 true, i1 true, i32 0} ; [ DW_TAG_variable ]
+!7 = metadata !{i32 524326, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !5} ; [ DW_TAG_const_type ]
+!8 = metadata !{i32 3, i32 13, metadata !9, null}
+!9 = metadata !{i32 524299, metadata !0, i32 3, i32 11, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]