commit 29704e7fb425a9cdf0e134996be3c0302a71feed
author Michael Kuperstein <michael.m.kuperstein@intel.com> Tue Mar 24 12:56:59 2015 +0000
committer Michael Kuperstein <michael.m.kuperstein@intel.com> Tue Mar 24 12:56:59 2015 +0000
tree d198e67a086ed876f28bdbfd6f6156f8da2032f3
parent d5cc45f192cbc1d6ad2566cbf999e1edfb3a525a

Revert "Use std::bitset for SubtargetFeatures"

This reverts commit r233055.

It still causes buildbot failures (gcc running out of memory on several platforms, and a self-host failure on arm), although less than the previous time.

llvm-svn: 233068

llvm/utils/TableGen/FixedLenDecoderEmitter.cpp

diff --git a/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp b/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp
index 30812fb..c69b89b 100644
--- a/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp
+++ b/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp
@@ -848,7 +848,7 @@
   // The predicate function is just a big switch statement based on the
   // input predicate index.
   OS.indent(Indentation) << "static bool checkDecoderPredicate(unsigned Idx, "
-    << "const FeatureBitset& Bits) {\n";
+    << "uint64_t Bits) {\n";
   Indentation += 2;
   if (!Predicates.empty()) {
     OS.indent(Indentation) << "switch (Idx) {\n";
@@ -1102,10 +1102,10 @@
 static void emitSinglePredicateMatch(raw_ostream &o, StringRef str,
                                      const std::string &PredicateNamespace) {
   if (str[0] == '!')
-    o << "!Bits[" << PredicateNamespace << "::"
-      << str.slice(1,str.size()) << "]";
+    o << "!(Bits & " << PredicateNamespace << "::"
+      << str.slice(1,str.size()) << ")";
   else
-    o << "Bits[" << PredicateNamespace << "::" << str << "]";
+    o << "(Bits & " << PredicateNamespace << "::" << str << ")";
 }
 
 bool FilterChooser::emitPredicateMatch(raw_ostream &o, unsigned &Indentation,
@@ -2010,7 +2010,7 @@
      << "                                      InsnType insn, uint64_t Address,\n"
      << "                                      const void *DisAsm,\n"
      << "                                      const MCSubtargetInfo &STI) {\n"
-     << "  const FeatureBitset& Bits = STI.getFeatureBits();\n"
+     << "  uint64_t Bits = STI.getFeatureBits();\n"
      << "\n"
      << "  const uint8_t *Ptr = DecodeTable;\n"
      << "  uint32_t CurFieldValue = 0;\n"