[llvm-exegesis] Get the BenchmarkRunner from the ExegesisTarget.

Summary:
This allows targets to override code generation for some instructions.
As an example of override, this also moves ad-hoc instruction filtering
for X86 into the X86 ExegesisTarget.

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48587

llvm-svn: 335582

1 files changed, 0 insertions, 6 deletions

diff --git a/llvm/tools/llvm-exegesis/lib/Uops.cpp b/llvm/tools/llvm-exegesis/lib/Uops.cpp
index 677a9d3a104..0125b6cb099 100644
--- a/llvm/tools/llvm-exegesis/lib/Uops.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Uops.cpp
@@ -91,8 +91,6 @@ static bool hasMemoryOperand(const llvm::MCOperandInfo &OpInfo) {
 
 llvm::Error
 UopsBenchmarkRunner::isInfeasible(const llvm::MCInstrDesc &MCInstrDesc) const {
-  if (MCInstrDesc.isPseudo())
-    return llvm::make_error<BenchmarkFailure>("Infeasible : is pseudo");
   if (llvm::any_of(MCInstrDesc.operands(), hasUnknownOperand))
     return llvm::make_error<BenchmarkFailure>(
         "Infeasible : has unknown operands");
@@ -133,10 +131,6 @@ static void remove(llvm::BitVector &a, const llvm::BitVector &b) {
 
 UopsBenchmarkRunner::~UopsBenchmarkRunner() = default;
 
-InstructionBenchmark::ModeE UopsBenchmarkRunner::getMode() const {
-  return InstructionBenchmark::Uops;
-}
-
 llvm::Expected<SnippetPrototype>
 UopsBenchmarkRunner::generatePrototype(unsigned Opcode) const {
   const auto &InstrDesc = State.getInstrInfo().get(Opcode);