Issue #59: adding subroutine opcodes.

etclabscore · Apr 28, 2020 · 2794daf · 2794daf
1 parent c28d0f1
commit 2794daf
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Showing 3 changed files with 21 additions and 15 deletions.
diff --git a/lib/Target/EVM/EVM.td b/lib/Target/EVM/EVM.td
@@ -24,14 +24,21 @@ def HasEIP211 : Predicate<"Subtarget->hasEIP211()">,
 
 def HasEIP615 : Predicate<"Subtarget->hasEIP615()">,
                           AssemblerPredicate<"FeatureEIP615">;
+*/
+
+def FeatureSubroutine : SubtargetFeature<"subroutine",
+                                         "HasSubroutine",
+                                         "true",
+                                         "EVM Subroutine support">;
+
+def HasSubroutine : Predicate<"Subtarget->hasSubroutine()">,
+                              AssemblerPredicate<"FeatureSubroutine">;
 
 class Proc<string Name, list<SubtargetFeature> Features>
  : Processor<Name, NoItineraries, Features>;
 
 def : Proc<"generic", []>;
-def : Proc<"eip211", [EIP211]>;
-def : Proc<"eip615", [EIP211, EIP615]>;
-*/
+def : Proc<"EVM15", [FeatureSubroutine]>;
 
 //===----------------------------------------------------------------------===//
 // Registers, instruction descriptions.

diff --git a/lib/Target/EVM/EVMInstrInfo.td b/lib/Target/EVM/EVMInstrInfo.td
@@ -444,14 +444,17 @@ def DUP16: EVMInst<(outs), (ins), [], "true", "DUP16", 0x8f, 3>;
 
 let isBranch = 1, isBarrier = 1, isTerminator = 1 in {
 defm JUMPTO : Inst_1_0<"JUMPTO", [], 0xb0, 8>;
-/*
-defm JUMPIF : // TODO: argument type is 4 bytes.
-    : RSInst<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2),
-             pattern,
-             "JUMPIF\t$dst, $src1, $src2", "JUMPIF", 0xb1, 10>;
-*/
+
+def JUMPSUB :
+  EVMInst<(outs), (ins I256Imm:$tgt), [], "true", "JUMPSUB \t$tgt", 0xb3, 8>;
 }
 
+def BEGINSUB  :
+  EVMInst<(outs), (ins), [], "true", "BEGINSUB", 0xb5, 1>;
+def RETURNSUB :
+  EVMInst<(outs), (ins), [], "true", "RETURNSUB", 0xb7, 2>;
+
+
 let mayStore = 1, hasSideEffects = 1 in {
 defm CREATE : Inst_3_1<"CREATE",
                        [(set GPR:$dst,

diff --git a/lib/Target/EVM/EVMSubtarget.h b/lib/Target/EVM/EVMSubtarget.h
@@ -31,13 +31,9 @@ class StringRef;
 class EVMSubtarget : public EVMGenSubtargetInfo {
   virtual void anchor();
 
-  // EVM Change
-  bool HasEIP211 = false;
-  bool HasEIP615 = false;
+  bool HasSubroutine = true;
 
-  bool hasEIP211() const { return HasEIP211; }
-  bool hasEIP615() const { return HasEIP615; }
-  // end of EVM Change
+  bool hasSubroutine() const {return HasSubroutine; }
 
   EVMFrameLowering FrameLowering;
   EVMInstrInfo InstrInfo;