llvm-tblgen: Stabilize subreg index tables.

Otherwise SequenceToOffsetTable will sort by pointer and becomes non-deterministic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190514 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/TableGen/RegisterInfoEmitter.cpp b/utils/TableGen/RegisterInfoEmitter.cpp
index 9a30e159be4b0f78be0b8a2676afeec05bdcf301..ee417bc7370fdbd630881f3c215e076207db1f2a 100644 (file)
--- a/utils/TableGen/RegisterInfoEmitter.cpp
+++ b/utils/TableGen/RegisterInfoEmitter.cpp
@@ -722,7 +722,7 @@ RegisterInfoEmitter::runMCDesc(raw_ostream &OS, CodeGenTarget &Target,
   // Keep track of sub-register names as well. These are not differentially
   // encoded.
   typedef SmallVector<const CodeGenSubRegIndex*, 4> SubRegIdxVec;
-  SequenceToOffsetTable<SubRegIdxVec> SubRegIdxSeqs;
+  SequenceToOffsetTable<SubRegIdxVec, CodeGenSubRegIndex::Less> SubRegIdxSeqs;
   SmallVector<SubRegIdxVec, 4> SubRegIdxLists(Regs.size());
 
   SequenceToOffsetTable<std::string> RegStrings;
@@ -1090,7 +1090,7 @@ RegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target,
     // Compress the sub-reg index lists.
     typedef std::vector<const CodeGenSubRegIndex*> IdxList;
     SmallVector<IdxList, 8> SuperRegIdxLists(RegisterClasses.size());
-    SequenceToOffsetTable<IdxList> SuperRegIdxSeqs;
+    SequenceToOffsetTable<IdxList, CodeGenSubRegIndex::Less> SuperRegIdxSeqs;
     BitVector MaskBV(RegisterClasses.size());
 
     for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {