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The new isel passes all tests, time to start making it go fast.

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Also add an easy macro at the top of DAGISelEmitter.cpp to enable
it.  Lets see if I can avoid accidentally turning it on :)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97029 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-02-24 07:06:50 +00:00
parent 95b6b9ae75
commit 91c6a822ba
4 changed files with 29 additions and 3 deletions
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1
utils/TableGen/CMakeLists.txt
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@ -11,6 +11,7 @@ add_executable(tblgen
DAGISelEmitter.cpp
DAGISelMatcherEmitter.cpp
DAGISelMatcherGen.cpp
DAGISelMatcherOpt.cpp
DAGISelMatcher.cpp
DisassemblerEmitter.cpp
EDEmitter.cpp

10
utils/TableGen/DAGISelEmitter.cpp
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@ -24,6 +24,9 @@
#include <iostream>
using namespace llvm;
//#define ENABLE_NEW_ISEL
static cl::opt<bool>
GenDebug("gen-debug", cl::desc("Generate debug code"), cl::init(false));
@ -1791,6 +1794,9 @@ void DAGISelEmitter::EmitInstructionSelector(raw_ostream &OS) {
OS << "// The main instruction selector code.\n"
<< "SDNode *SelectCode(SDNode *N) {\n"
#ifdef ENABLE_NEW_ISEL
<< " return SelectCode2(N);\n"
#endif
<< " MVT::SimpleValueType NVT = N->getValueType(0).getSimpleVT().SimpleTy;\n"
<< " switch (N->getOpcode()) {\n"
<< " default:\n"
@ -1946,7 +1952,7 @@ void DAGISelEmitter::run(raw_ostream &OS) {
// definitions. Emit the resultant instruction selector.
EmitInstructionSelector(OS);
#if 0
#ifdef ENABLE_NEW_ISEL
MatcherNode *Matcher = 0;
// Add all the patterns to a temporary list so we can sort them.
@ -1977,7 +1983,7 @@ void DAGISelEmitter::run(raw_ostream &OS) {
Matcher = new PushMatcherNode(N, Matcher);
}
// OptimizeMatcher(Matcher);
OptimizeMatcher(Matcher);
//Matcher->dump();
EmitMatcherTable(Matcher, OS);
delete Matcher;

2
utils/TableGen/DAGISelMatcher.h
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@ -26,7 +26,7 @@ namespace llvm {
MatcherNode *ConvertPatternToMatcher(const PatternToMatch &Pattern,
const CodeGenDAGPatterns &CGP);
void OptimizeMatcher(const MatcherNode *Matcher);
void EmitMatcherTable(const MatcherNode *Matcher, raw_ostream &OS);

19
utils/TableGen/DAGISelMatcherOpt.cpp Normal file
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@ -0,0 +1,19 @@
//===- DAGISelMatcherOpt.cpp - Optimize a DAG Matcher ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the DAG Matcher optimizer.
//
//===----------------------------------------------------------------------===//
#include "DAGISelMatcher.h"
using namespace llvm;
void llvm::OptimizeMatcher(const MatcherNode *Matcher) {
// Nothing yet.
}