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authorChris Lattner <sabre@nondot.org>2003-08-04 20:44:17 +0000
committerChris Lattner <sabre@nondot.org>2003-08-04 20:44:17 +0000
commit8e9a9774eb12b5242f74b8ac5b20e0a938ec9c53 (patch)
tree51b6211a3248d440a2d78f491a4ae9d68d80783d /support/tools/TableGen
parent7c1af88b8e5cf381635eeeddbcbd30e28e17e41c (diff)
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add support for DagInit initializers, which represent DAG patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7576 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'support/tools/TableGen')
-rw-r--r--support/tools/TableGen/Record.cpp11
-rw-r--r--support/tools/TableGen/Record.h24
2 files changed, 34 insertions, 1 deletions
diff --git a/support/tools/TableGen/Record.cpp b/support/tools/TableGen/Record.cpp
index 616c790..d47b50c 100644
--- a/support/tools/TableGen/Record.cpp
+++ b/support/tools/TableGen/Record.cpp
@@ -434,6 +434,17 @@ Init *FieldInit::resolveReferences(Record &R) {
}
+void DagInit::print(std::ostream &OS) const {
+ OS << "(" << NodeTypeDef->getName();
+ if (Args.size()) {
+ OS << " " << *Args[0];
+ for (unsigned i = 1, e = Args.size(); i != e; ++i)
+ OS << ", " << *Args[i];
+ }
+ OS << ")";
+}
+
+
//===----------------------------------------------------------------------===//
// Other implementations
//===----------------------------------------------------------------------===//
diff --git a/support/tools/TableGen/Record.h b/support/tools/TableGen/Record.h
index cb42f03..8b37dba 100644
--- a/support/tools/TableGen/Record.h
+++ b/support/tools/TableGen/Record.h
@@ -34,6 +34,7 @@ class StringInit;
class CodeInit;
class ListInit;
class DefInit;
+class DagInit;
class TypedInit;
class VarInit;
class FieldInit;
@@ -66,6 +67,7 @@ public: // These methods should only be called from subclasses of Init
virtual Init *convertValue( CodeInit *CI) { return 0; }
virtual Init *convertValue(VarBitInit *VB) { return 0; }
virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
virtual Init *convertValue( TypedInit *TI) { return 0; }
virtual Init *convertValue( VarInit *VI) {
return convertValue((TypedInit*)VI);
@@ -221,7 +223,7 @@ struct CodeRecTy : public RecTy {
///
struct DagRecTy : public RecTy {
Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- //Init *convertValue( DagInit *CI) { return (Init*)CI; }
+ Init *convertValue( DagInit *CI) { return (Init*)CI; }
Init *convertValue(TypedInit *TI);
void print(std::ostream &OS) const { OS << "dag"; }
@@ -582,6 +584,26 @@ public:
}
};
+/// DagInit - (def a, b) - Represent a DAG tree value. DAG inits are required
+/// to have Records for their first value, after that, any legal Init is
+/// possible.
+///
+class DagInit : public Init {
+ Record *NodeTypeDef;
+ std::vector<Init*> Args;
+public:
+ DagInit(Record *D, std::vector<Init*> &a) : NodeTypeDef(D) {
+ Args.swap(a); // DESTRUCTIVELY take the arguments
+ }
+
+ virtual Init *convertInitializerTo(RecTy *Ty) {
+ return Ty->convertValue(this);
+ }
+
+ Record *getNodeType() const { return NodeTypeDef; }
+
+ virtual void print(std::ostream &OS) const;
+};
//===----------------------------------------------------------------------===//
// High-Level Classes