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authorEric Christopher <echristo@gmail.com>2013-01-08 00:16:33 +0000
committerEric Christopher <echristo@gmail.com>2013-01-08 00:16:33 +0000
commit72a81be37452983f9960a376c19682034ef7db35 (patch)
treedc8d5ee57f2bd4344cc81f73c5336a8a32a84902
parent682106050979f0d48fcf17338c99e91672352789 (diff)
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Remove what appears to be a dead llvm-specific debug tag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171821 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--docs/SourceLevelDebugging.rst4
-rw-r--r--include/llvm/Support/Dwarf.h4
-rw-r--r--lib/IR/DebugInfo.cpp1
-rw-r--r--lib/Support/Dwarf.cpp1
4 files changed, 3 insertions, 7 deletions
diff --git a/docs/SourceLevelDebugging.rst b/docs/SourceLevelDebugging.rst
index f7dfa4a..933534f 100644
--- a/docs/SourceLevelDebugging.rst
+++ b/docs/SourceLevelDebugging.rst
@@ -585,12 +585,10 @@ value of the tag depends on the usage of the variable:
DW_TAG_auto_variable = 256
DW_TAG_arg_variable = 257
- DW_TAG_return_variable = 258
An auto variable is any variable declared in the body of the function. An
argument variable is any variable that appears as a formal argument to the
-function. A return variable is used to track the result of a function and has
-no source correspondent.
+function.
The context is either the subprogram or block where the variable is defined.
Name the source variable name. Context and line indicate where the variable
diff --git a/include/llvm/Support/Dwarf.h b/include/llvm/Support/Dwarf.h
index 697ef45..22c181e 100644
--- a/include/llvm/Support/Dwarf.h
+++ b/include/llvm/Support/Dwarf.h
@@ -37,7 +37,7 @@ enum {
namespace dwarf {
//===----------------------------------------------------------------------===//
-// Dwarf constants as gleaned from the DWARF Debugging Information Format V.3
+// Dwarf constants as gleaned from the DWARF Debugging Information Format V.4
// reference manual http://dwarf.freestandards.org .
//
@@ -50,7 +50,7 @@ enum llvm_dwarf_constants {
DW_TAG_auto_variable = 0x100, // Tag for local (auto) variables.
DW_TAG_arg_variable = 0x101, // Tag for argument variables.
- DW_TAG_return_variable = 0x102, // Tag for return variables.
+ // 0x102 - Unused.
DW_TAG_vector_type = 0x103, // Tag for vector types.
DW_TAG_user_base = 0x1000, // Recommended base for user tags.
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index b5e1d17..6ca692e 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -212,7 +212,6 @@ bool DIDescriptor::isVariable() const {
switch (getTag()) {
case dwarf::DW_TAG_auto_variable:
case dwarf::DW_TAG_arg_variable:
- case dwarf::DW_TAG_return_variable:
return true;
default:
return false;
diff --git a/lib/Support/Dwarf.cpp b/lib/Support/Dwarf.cpp
index 839dd84..8a96048 100644
--- a/lib/Support/Dwarf.cpp
+++ b/lib/Support/Dwarf.cpp
@@ -80,7 +80,6 @@ const char *llvm::dwarf::TagString(unsigned Tag) {
case DW_TAG_hi_user: return "DW_TAG_hi_user";
case DW_TAG_auto_variable: return "DW_TAG_auto_variable";
case DW_TAG_arg_variable: return "DW_TAG_arg_variable";
- case DW_TAG_return_variable: return "DW_TAG_return_variable";
case DW_TAG_vector_type: return "DW_TAG_vector_type";
case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type";
case DW_TAG_template_alias: return "DW_TAG_template_alias";