diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/utils/TableGen/AsmMatcherEmitter.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp index dca7929e545..c80285fa377 100644 --- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp +++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp @@ -1413,9 +1413,11 @@ void AsmMatcherEmitter::run(raw_ostream &OS) { AsmMatcherInfo Info(AsmParser); Info.BuildInfo(Target); - // Sort the instruction table using the partial order on classes. - std::sort(Info.Instructions.begin(), Info.Instructions.end(), - less_ptr<InstructionInfo>()); + // Sort the instruction table using the partial order on classes. We use + // stable_sort to ensure that ambiguous instructions are still + // deterministically ordered. + std::stable_sort(Info.Instructions.begin(), Info.Instructions.end(), + less_ptr<InstructionInfo>()); DEBUG_WITH_TYPE("instruction_info", { for (std::vector<InstructionInfo*>::iterator |
