r190960 - Debug info: Explicitly set the DIVariable::isIndirect() flag for VLAs.

[Adrian Prantl]

Author: adrian
Date: Wed Sep 18 17:08:57 2013
New Revision: 190960

URL: http://llvm.org/viewvc/llvm-project?rev=190960&view=rev
Log:
Debug info: Explicitly set the DIVariable::isIndirect() flag for VLAs.
This allows us to get rid of an ugly hack in the backend.
Paired commit with LLVM.

Modified:
    cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
    cfe/trunk/test/CodeGen/debug-info-vla.c

Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=190960&r1=190959&r2=190960&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Wed Sep 18 17:08:57 2013
@@ -2747,6 +2747,8 @@ void CGDebugInfo::EmitDeclare(const VarD
         DBuilder.insertDeclare(Storage, D, Builder.GetInsertBlock());
       Call->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope));
       return;
+    } else if (isa<VariableArrayType>(VD->getType())) {
+      Flags |= llvm::DIDescriptor::FlagIndirectVariable;
     }
   } else if (const RecordType *RT = dyn_cast<RecordType>(VD->getType())) {
     // If VD is an anonymous union then Storage represents value for

Modified: cfe/trunk/test/CodeGen/debug-info-vla.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/debug-info-vla.c?rev=190960&r1=190959&r2=190960&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/debug-info-vla.c (original)
+++ cfe/trunk/test/CodeGen/debug-info-vla.c Wed Sep 18 17:08:57 2013
@@ -2,7 +2,7 @@
 
 void testVLAwithSize(int s)
 {
-// CHECK: metadata !{i32 {{.*}}, metadata {{.*}}, metadata !"vla", metadata {{.*}}, i32 [[@LINE+1]], metadata {{.*}}, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [vla] [line [[@LINE+1]]]
+// CHECK: metadata !{i32 {{.*}}, metadata {{.*}}, metadata !"vla", metadata {{.*}}, i32 [[@LINE+1]], metadata {{.*}}, i32 8192, i32 0} ; [ DW_TAG_auto_variable ] [vla] [line [[@LINE+1]]]
   int vla[s];
   int i;
   for (i = 0; i < s; i++) {