Factor out the predicate check code from DAGISelEmitter.cpp
and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55156 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index 12667d5..cf4d20f 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -317,7 +317,7 @@
CodeGenDAGPatterns &CGP;
// Predicates.
- ListInit *Predicates;
+ std::string PredicateCheck;
// Pattern cost.
unsigned Cost;
// Instruction selector pattern.
@@ -395,7 +395,7 @@
VTNo++;
}
public:
- PatternCodeEmitter(CodeGenDAGPatterns &cgp, ListInit *preds,
+ PatternCodeEmitter(CodeGenDAGPatterns &cgp, std::string predcheck,
TreePatternNode *pattern, TreePatternNode *instr,
std::vector<std::pair<unsigned, std::string> > &gc,
std::set<std::string> &gd,
@@ -403,7 +403,7 @@
std::vector<std::string> &tv,
bool &oiv,
unsigned &niro)
- : CGP(cgp), Predicates(preds), Pattern(pattern), Instruction(instr),
+ : CGP(cgp), PredicateCheck(predcheck), Pattern(pattern), Instruction(instr),
GeneratedCode(gc), GeneratedDecl(gd),
TargetOpcodes(to), TargetVTs(tv),
OutputIsVariadic(oiv), NumInputRootOps(niro),
@@ -431,22 +431,6 @@
if (DisablePatternForFastISel(N, CGP))
emitCheck("!Fast");
- std::string PredicateCheck;
- for (unsigned i = 0, e = Predicates->getSize(); i != e; ++i) {
- if (DefInit *Pred = dynamic_cast<DefInit*>(Predicates->getElement(i))) {
- Record *Def = Pred->getDef();
- if (!Def->isSubClassOf("Predicate")) {
-#ifndef NDEBUG
- Def->dump();
-#endif
- assert(0 && "Unknown predicate type!");
- }
- if (!PredicateCheck.empty())
- PredicateCheck += " && ";
- PredicateCheck += "(" + Def->getValueAsString("CondString") + ")";
- }
- }
-
emitCheck(PredicateCheck);
}
@@ -1412,7 +1396,7 @@
OutputIsVariadic = false;
NumInputRootOps = 0;
- PatternCodeEmitter Emitter(CGP, Pattern.getPredicates(),
+ PatternCodeEmitter Emitter(CGP, Pattern.getPredicateCheck(),
Pattern.getSrcPattern(), Pattern.getDstPattern(),
GeneratedCode, GeneratedDecl,
TargetOpcodes, TargetVTs,