mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-10-06 14:57:41 +00:00
436906ab3c
the stack of the analysis group because they are all immutable passes. This is made clear by Craig's recent work to use override systematically -- we weren't overriding anything for 'finalizePass' because there is no such thing. This is kind of a lame restriction on the API -- we can no longer push and pop things, we just set up the stack and run. However, I'm not invested in building some better solution on top of the existing (terrifying) immutable pass and legacy pass manager. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203437 91177308-0d34-0410-b5e6-96231b3b80d8
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
//===-- XCoreTargetTransformInfo.cpp - XCore specific TTI pass ----------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
/// \file
|
|
/// This file implements a TargetTransformInfo analysis pass specific to the
|
|
/// XCore target machine. It uses the target's detailed information to provide
|
|
/// more precise answers to certain TTI queries, while letting the target
|
|
/// independent and default TTI implementations handle the rest.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#define DEBUG_TYPE "xcoretti"
|
|
#include "XCore.h"
|
|
#include "llvm/Analysis/TargetTransformInfo.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Target/CostTable.h"
|
|
#include "llvm/Target/TargetLowering.h"
|
|
using namespace llvm;
|
|
|
|
// Declare the pass initialization routine locally as target-specific passes
|
|
// don't havve a target-wide initialization entry point, and so we rely on the
|
|
// pass constructor initialization.
|
|
namespace llvm {
|
|
void initializeXCoreTTIPass(PassRegistry &);
|
|
}
|
|
|
|
namespace {
|
|
|
|
class XCoreTTI final : public ImmutablePass, public TargetTransformInfo {
|
|
public:
|
|
XCoreTTI() : ImmutablePass(ID) {
|
|
llvm_unreachable("This pass cannot be directly constructed");
|
|
}
|
|
|
|
XCoreTTI(const XCoreTargetMachine *TM)
|
|
: ImmutablePass(ID) {
|
|
initializeXCoreTTIPass(*PassRegistry::getPassRegistry());
|
|
}
|
|
|
|
virtual void initializePass() override {
|
|
pushTTIStack(this);
|
|
}
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const override {
|
|
TargetTransformInfo::getAnalysisUsage(AU);
|
|
}
|
|
|
|
static char ID;
|
|
|
|
virtual void *getAdjustedAnalysisPointer(const void *ID) override {
|
|
if (ID == &TargetTransformInfo::ID)
|
|
return (TargetTransformInfo*)this;
|
|
return this;
|
|
}
|
|
|
|
unsigned getNumberOfRegisters(bool Vector) const override {
|
|
if (Vector) {
|
|
return 0;
|
|
}
|
|
return 12;
|
|
}
|
|
};
|
|
|
|
} // end anonymous namespace
|
|
|
|
INITIALIZE_AG_PASS(XCoreTTI, TargetTransformInfo, "xcoretti",
|
|
"XCore Target Transform Info", true, true, false)
|
|
char XCoreTTI::ID = 0;
|
|
|
|
|
|
ImmutablePass *
|
|
llvm::createXCoreTargetTransformInfoPass(const XCoreTargetMachine *TM) {
|
|
return new XCoreTTI(TM);
|
|
}
|