The new isel passes all tests, time to start making it go fast.
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
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index b9ef3da..2d2ab3e 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -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 @@
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 @@
// 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 @@
Matcher = new PushMatcherNode(N, Matcher);
}
- // OptimizeMatcher(Matcher);
+ OptimizeMatcher(Matcher);
//Matcher->dump();
EmitMatcherTable(Matcher, OS);
delete Matcher;