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Diffstat (limited to 'llvm/utils/TableGen/GlobalISelEmitter.cpp')
-rw-r--r--llvm/utils/TableGen/GlobalISelEmitter.cpp90
1 files changed, 33 insertions, 57 deletions
diff --git a/llvm/utils/TableGen/GlobalISelEmitter.cpp b/llvm/utils/TableGen/GlobalISelEmitter.cpp
index f0fb1162..3b334ea 100644
--- a/llvm/utils/TableGen/GlobalISelEmitter.cpp
+++ b/llvm/utils/TableGen/GlobalISelEmitter.cpp
@@ -418,7 +418,8 @@ private:
const TreePatternNode &N) const;
Error importLeafNodeRenderer(RuleMatcher &M, BuildMIAction &MIBuilder,
- const TreePatternNode &N) const;
+ const TreePatternNode &N,
+ action_iterator InsertPt) const;
Error importXFormNodeRenderer(RuleMatcher &M, BuildMIAction &MIBuilder,
const TreePatternNode &N) const;
@@ -431,9 +432,6 @@ private:
const TreePatternNode &N,
action_iterator &InsertPt) const;
- Error importDefaultOperandRenderers(action_iterator InsertPt, RuleMatcher &M,
- BuildMIAction &DstMIBuilder,
- const DAGDefaultOperand &DefaultOp) const;
Error importImplicitDefRenderers(BuildMIAction &DstMIBuilder,
ArrayRef<const Record *> ImplicitDefs) const;
@@ -1291,7 +1289,8 @@ Error GlobalISelEmitter::importNamedNodeRenderer(
// Equivalent of MatcherGen::EmitResultLeafAsOperand.
Error GlobalISelEmitter::importLeafNodeRenderer(
- RuleMatcher &M, BuildMIAction &MIBuilder, const TreePatternNode &N) const {
+ RuleMatcher &M, BuildMIAction &MIBuilder, const TreePatternNode &N,
+ action_iterator InsertPt) const {
if (const auto *II = dyn_cast<IntInit>(N.getLeafValue())) {
MIBuilder.addRenderer<ImmRenderer>(II->getValue());
return Error::success();
@@ -1300,11 +1299,29 @@ Error GlobalISelEmitter::importLeafNodeRenderer(
if (const auto *DI = dyn_cast<DefInit>(N.getLeafValue())) {
const Record *R = DI->getDef();
- if (R->isSubClassOf("Register")) {
+ if (R->isSubClassOf("Register") || R->getName() == "zero_reg") {
MIBuilder.addRenderer<AddRegisterRenderer>(Target, R);
return Error::success();
}
+ if (R->getName() == "undef_tied_input") {
+ std::optional<LLTCodeGen> OpTyOrNone = MVTToLLT(N.getSimpleType(0));
+ if (!OpTyOrNone)
+ return failedImport("unsupported type");
+
+ unsigned TempRegID = M.allocateTempRegID();
+ M.insertAction<MakeTempRegisterAction>(InsertPt, *OpTyOrNone, TempRegID);
+
+ auto I = M.insertAction<BuildMIAction>(
+ InsertPt, M.allocateOutputInsnID(),
+ &Target.getInstruction(RK.getDef("IMPLICIT_DEF")));
+ auto &ImpDefBuilder = static_cast<BuildMIAction &>(**I);
+ ImpDefBuilder.addRenderer<TempRegRenderer>(TempRegID, /*IsDef=*/true);
+
+ MIBuilder.addRenderer<TempRegRenderer>(TempRegID);
+ return Error::success();
+ }
+
if (R->isSubClassOf("SubRegIndex")) {
const CodeGenSubRegIndex *SubRegIndex = CGRegs.getSubRegIdx(R);
MIBuilder.addRenderer<ImmRenderer>(SubRegIndex->EnumValue);
@@ -1386,7 +1403,7 @@ Error GlobalISelEmitter::importNodeRenderer(RuleMatcher &M,
return importNamedNodeRenderer(M, MIBuilder, N);
if (N.isLeaf())
- return importLeafNodeRenderer(M, MIBuilder, N);
+ return importLeafNodeRenderer(M, MIBuilder, N, InsertPt);
if (N.getOperator()->isSubClassOf("SDNodeXForm"))
return importXFormNodeRenderer(M, MIBuilder, N);
@@ -1412,15 +1429,15 @@ Expected<BuildMIAction &> GlobalISelEmitter::createAndImportInstructionRenderer(
action_iterator InsertPt = InsertPtOrError.get();
BuildMIAction &DstMIBuilder = *static_cast<BuildMIAction *>(InsertPt->get());
- for (auto PhysInput : InsnMatcher.getPhysRegInputs()) {
+ for (auto PhysOp : M.physoperands()) {
InsertPt = M.insertAction<BuildMIAction>(
InsertPt, M.allocateOutputInsnID(),
&Target.getInstruction(RK.getDef("COPY")));
BuildMIAction &CopyToPhysRegMIBuilder =
*static_cast<BuildMIAction *>(InsertPt->get());
- CopyToPhysRegMIBuilder.addRenderer<AddRegisterRenderer>(
- Target, PhysInput.first, true);
- CopyToPhysRegMIBuilder.addRenderer<CopyPhysRegRenderer>(PhysInput.first);
+ CopyToPhysRegMIBuilder.addRenderer<AddRegisterRenderer>(Target,
+ PhysOp.first, true);
+ CopyToPhysRegMIBuilder.addRenderer<CopyPhysRegRenderer>(PhysOp.first);
}
if (auto Error = importExplicitDefRenderers(InsertPt, M, DstMIBuilder, Dst,
@@ -1707,11 +1724,11 @@ Expected<action_iterator> GlobalISelEmitter::importExplicitUseRenderers(
// This is a predicate or optional def operand which the pattern has not
// overridden, or which we aren't letting it override; emit the 'default
// ops' operands.
-
- const Record *OperandNode = DstI->Operands[InstOpNo].Rec;
- if (auto Error = importDefaultOperandRenderers(
- InsertPt, M, DstMIBuilder, CGP.getDefaultOperand(OperandNode)))
- return std::move(Error);
+ for (const TreePatternNode &OpNode :
+ make_pointee_range(CGP.getDefaultOperand(OperandNode).DefaultOps)) {
+ if (Error Err = importNodeRenderer(M, DstMIBuilder, OpNode, InsertPt))
+ return Err;
+ }
++NumDefaultOps;
continue;
@@ -1734,47 +1751,6 @@ Expected<action_iterator> GlobalISelEmitter::importExplicitUseRenderers(
return InsertPt;
}
-Error GlobalISelEmitter::importDefaultOperandRenderers(
- action_iterator InsertPt, RuleMatcher &M, BuildMIAction &DstMIBuilder,
- const DAGDefaultOperand &DefaultOp) const {
- for (const auto &Op : DefaultOp.DefaultOps) {
- const auto &N = *Op;
- if (!N.isLeaf())
- return failedImport("Could not add default op");
-
- const auto *DefaultOp = N.getLeafValue();
-
- if (const DefInit *DefaultDefOp = dyn_cast<DefInit>(DefaultOp)) {
- std::optional<LLTCodeGen> OpTyOrNone = MVTToLLT(N.getSimpleType(0));
- auto *Def = DefaultDefOp->getDef();
- if (Def->getName() == "undef_tied_input") {
- unsigned TempRegID = M.allocateTempRegID();
- M.insertAction<MakeTempRegisterAction>(InsertPt, *OpTyOrNone,
- TempRegID);
- InsertPt = M.insertAction<BuildMIAction>(
- InsertPt, M.allocateOutputInsnID(),
- &Target.getInstruction(RK.getDef("IMPLICIT_DEF")));
- BuildMIAction &IDMIBuilder =
- *static_cast<BuildMIAction *>(InsertPt->get());
- IDMIBuilder.addRenderer<TempRegRenderer>(TempRegID);
- DstMIBuilder.addRenderer<TempRegRenderer>(TempRegID);
- } else {
- DstMIBuilder.addRenderer<AddRegisterRenderer>(Target, Def);
- }
- continue;
- }
-
- if (const IntInit *DefaultIntOp = dyn_cast<IntInit>(DefaultOp)) {
- DstMIBuilder.addRenderer<ImmRenderer>(DefaultIntOp->getValue());
- continue;
- }
-
- return failedImport("Could not add default op");
- }
-
- return Error::success();
-}
-
Error GlobalISelEmitter::importImplicitDefRenderers(
BuildMIAction &DstMIBuilder, ArrayRef<const Record *> ImplicitDefs) const {
if (!ImplicitDefs.empty())
generated by cgit v1.1 at 2025-09-27 10:45:15 +0000