[llvm] r223493 - Fix a bug when pretty-printing DW_OP_deref.

[Adrian Prantl]

Author: adrian
Date: Fri Dec  5 12:19:38 2014
New Revision: 223493

URL: http://llvm.org/viewvc/llvm-project?rev=223493&view=rev
Log:
Fix a bug when pretty-printing DW_OP_deref.

Modified:
    llvm/trunk/lib/IR/DebugInfo.cpp
    llvm/trunk/test/DebugInfo/X86/block-capture.ll
    llvm/trunk/test/DebugInfo/X86/op_deref.ll

Modified: llvm/trunk/lib/IR/DebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DebugInfo.cpp?rev=223493&r1=223492&r2=223493&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DebugInfo.cpp (original)
+++ llvm/trunk/lib/IR/DebugInfo.cpp Fri Dec  5 12:19:38 2014
@@ -1415,6 +1415,9 @@ void DIExpression::printInternal(raw_ost
       OS << " offset=" << Offset << ", size=" << Size;
       break;
     }
+    case DW_OP_deref:
+      // No arguments.
+      break;
     default:
       // Else bail out early. This may be a line table entry.
       OS << "Unknown]";

Modified: llvm/trunk/test/DebugInfo/X86/block-capture.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/block-capture.ll?rev=223493&r1=223492&r2=223493&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/X86/block-capture.ll (original)
+++ llvm/trunk/test/DebugInfo/X86/block-capture.ll Fri Dec  5 12:19:38 2014
@@ -124,7 +124,7 @@ attributes #3 = { nounwind }
 !66 = metadata !{i32 2, i32 20, metadata !8, null}
 !67 = metadata !{i32 2, i32 21, metadata !8, null}
 !68 = metadata !{metadata !"0x100\00block\002\000", metadata !8, metadata !5, metadata !25} ; [ DW_TAG_auto_variable ] [block] [line 2]
-!69 = metadata !{metadata !"0x102\006\0034\0032"} ; [ DW_TAG_expression ] [DW_OP_derefUnknown]
+!69 = metadata !{metadata !"0x102\006\0034\0032"} ; [ DW_TAG_expression ] [DW_OP_deref]
 !70 = metadata !{i32 2, i32 9, metadata !8, null}
 !71 = metadata !{i32 2, i32 23, metadata !72, null}
 !72 = metadata !{metadata !"0xb\002\0021\000", metadata !1, metadata !8} ; [ DW_TAG_lexical_block ] [/foo.m]

Modified: llvm/trunk/test/DebugInfo/X86/op_deref.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/op_deref.ll?rev=223493&r1=223492&r2=223493&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/X86/op_deref.ll (original)
+++ llvm/trunk/test/DebugInfo/X86/op_deref.ll Fri Dec  5 12:19:38 2014
@@ -23,6 +23,9 @@
 ; ASM-CHECK: DEBUG_VALUE: vla <- RCX
 ; ASM-CHECK: DW_OP_breg2
 
+; RUN: llvm-as %s -o - | llvm-dis - | FileCheck %s --check-prefix=PRETTY-PRINT
+; PRETTY-PRINT: [ DW_TAG_expression ] [DW_OP_deref]
+
 define void @testVLAwithSize(i32 %s) nounwind uwtable ssp {
 entry:
   %s.addr = alloca i32, align 4