From: David Blaikie <dblaikie@gmail.com>
Date: Tue, 7 May 2013 17:57:13 +0000 (+0000)
Subject: Debug Info: Fix for break due to r181271
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=498c91e341ff8cff835b053c25a76fe7c21b06a9;p=oota-llvm.git

Debug Info: Fix for break due to r181271

Apparently we didn't keep an association of Compile Unit metadata nodes
to DIEs so looking up that parental context failed & thus caused no
DW_TAG_imported_modules to be emitted at the CU scope. Fix this by
adding the mapping & sure up the test case to verify this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181339 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index aeaa63f2af5..90dceacb798 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -685,6 +685,7 @@ CompileUnit *DwarfDebug::constructCompileUnit(const MDNode *N) {
   CompileUnit *NewCU = new CompileUnit(GlobalCUIndexCount++,
                                        DIUnit.getLanguage(), Die, Asm,
                                        this, &InfoHolder);
+  NewCU->insertDIE(N, Die);
 
   FileIDCUMap[NewCU->getUniqueID()] = 0;
   // Call this to emit a .file directive if it wasn't emitted for the source
diff --git a/test/DebugInfo/namespace.ll b/test/DebugInfo/namespace.ll
index a7dcf7c6150..3d2a6110185 100644
--- a/test/DebugInfo/namespace.ll
+++ b/test/DebugInfo/namespace.ll
@@ -23,6 +23,8 @@
 ; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1]])
 ; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x04)
 ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
+; CHECK: NULL
+; CHECK-NOT: NULL
 
 ; CHECK: DW_TAG_subprogram
 ; CHECK-NEXT: DW_AT_MIPS_linkage_name
@@ -39,6 +41,15 @@
 ; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
 ; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x0b)
 ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
+; CHECK: NULL
+; CHECK: NULL
+; CHECK-NOT: NULL
+
+; CHECK: DW_TAG_imported_module
+; Same bug as above, this should be F2, not F1
+; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1]])
+; CHECK-NEXT: DW_AT_decl_line{{.*}}(0x07)
+; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
 
 ; CHECK: file_names[  [[F1]]]{{.*}}debug-info-namespace.cpp
 ; CHECK: file_names[  [[F2]]]{{.*}}foo.cpp