Bitcode: Remove reader support for MODULE_CODE_PURGEVALS.

Support for writing this module code was removed in r73220, which was well
before the LLVM 3.0 release, so we do not need to be able to understand it
for backwards compatibility.

Differential Revision: https://reviews.llvm.org/D31563

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299370 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/BitCodeFormat.rst b/docs/BitCodeFormat.rst
index 3c9aa1010704ce5b5b26254f81eb1067a3703ef9..a9a123595f7f5aa983201c33b1d5c1cb2525f95b 100644 (file)
--- a/docs/BitCodeFormat.rst
+++ b/docs/BitCodeFormat.rst
@@ -839,16 +839,6 @@ fields are
 * *unnamed_addr*: If present, an encoding of the
   :ref:`unnamed_addr<bcunnamedaddr>` attribute of this alias
 
-MODULE_CODE_PURGEVALS Record
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-``[PURGEVALS, numvals]``
-
-The ``PURGEVALS`` record (code 10) resets the module-level value list to the
-size given by the single operand value. Module-level value list items are added
-by ``GLOBALVAR``, ``FUNCTION``, and ``ALIAS`` records.  After a ``PURGEVALS``
-record is seen, new value indices will start from the given *numvals* value.
-
 .. _MODULE_CODE_GCNAME:
 
 MODULE_CODE_GCNAME Record

diff --git a/include/llvm/Bitcode/LLVMBitCodes.h b/include/llvm/Bitcode/LLVMBitCodes.h
index 8d84fef97429c167e5b22d465003c768027965c0..e2d2fbb0f449aae2051a88eb02264e2eadb90d4d 100644 (file)
--- a/include/llvm/Bitcode/LLVMBitCodes.h
+++ b/include/llvm/Bitcode/LLVMBitCodes.h
@@ -92,9 +92,6 @@ enum ModuleCodes {
   // ALIAS: [alias type, aliasee val#, linkage, visibility]
   MODULE_CODE_ALIAS_OLD = 9,
 
-  // MODULE_CODE_PURGEVALS: [numvals]
-  MODULE_CODE_PURGEVALS = 10,
-
   MODULE_CODE_GCNAME = 11, // GCNAME: [strchr x N]
   MODULE_CODE_COMDAT = 12, // COMDAT: [selection_kind, name]
 

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 4198d8f7c10b46c67cd98337cfa170f5aa951e6b..23649e811ede8d33933362b72a3b7d53363fdbda 100644 (file)
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -3060,13 +3060,6 @@ Error BitcodeReader::parseModule(uint64_t ResumeBit,
       IndirectSymbolInits.push_back(std::make_pair(NewGA, Val));
       break;
     }
-    /// MODULE_CODE_PURGEVALS: [numvals]
-    case bitc::MODULE_CODE_PURGEVALS:
-      // Trim down the value list to the specified size.
-      if (Record.size() < 1 || Record[0] > ValueList.size())
-        return error("Invalid record");
-      ValueList.shrinkTo(Record[0]);
-      break;
     /// MODULE_CODE_VSTOFFSET: [offset]
     case bitc::MODULE_CODE_VSTOFFSET:
       if (Record.size() < 1)

diff --git a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
index 6f1442135217fd732a1b2e58be67ff382586123e..abc6fa27a0e05d1899d5f138d9c11c7764f538ca 100644 (file)
--- a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
+++ b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
@@ -171,7 +171,6 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
       STRINGIFY_CODE(MODULE_CODE, GLOBALVAR)
       STRINGIFY_CODE(MODULE_CODE, FUNCTION)
       STRINGIFY_CODE(MODULE_CODE, ALIAS)
-      STRINGIFY_CODE(MODULE_CODE, PURGEVALS)
       STRINGIFY_CODE(MODULE_CODE, GCNAME)
       STRINGIFY_CODE(MODULE_CODE, VSTOFFSET)
       STRINGIFY_CODE(MODULE_CODE, METADATA_VALUES_UNUSED)