From c622d4cd025ba400458c5269653ba513ad512116 Mon Sep 17 00:00:00 2001
From: Svyatoslav Scherbina <svyatoslav.scherbina@jetbrains.com>
Date: Thu, 17 Nov 2016 11:36:03 +0700
Subject: [PATCH] backend: implement `===` operator

---
 .../kotlin/backend/konan/llvm/IrToBitcode.kt  | 22 ++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt
index 788b27b6ffd..3fa58b655b8 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt
@@ -429,6 +429,7 @@ internal class CodeGeneratorVisitor(val context: Context) : IrElementVisitorVoid
 
     //-------------------------------------------------------------------------//
     private val kEqeq        = Name.identifier("EQEQ")
+    private val ktEqeqeq     = Name.identifier("EQEQEQ")
     private val kGt0         = Name.identifier("GT0")
     private val kGteq0       = Name.identifier("GTEQ0")
     private val kLt0         = Name.identifier("LT0")
@@ -444,13 +445,15 @@ internal class CodeGeneratorVisitor(val context: Context) : IrElementVisitorVoid
         val descriptor = callee.descriptor
         when (descriptor.name) {
             kEqeq  -> return evaluateOperatorEqeq(callee as IrBinaryPrimitiveImpl, args[0]!!, args[1]!!, tmpVariableName)
+            ktEqeqeq ->
+                return evaluateOperatorEqeqeq(callee as IrBinaryPrimitiveImpl, args[0]!!, args[1]!!, tmpVariableName)
             kGt0   -> return codegen.icmpGt(args[0]!!, kImmZero, tmpVariableName)
             kGteq0 -> return codegen.icmpGe(args[0]!!, kImmZero, tmpVariableName)
             kLt0   -> return codegen.icmpLt(args[0]!!, kImmZero, tmpVariableName)
             kLteq0 -> return codegen.icmpLe(args[0]!!, kImmZero, tmpVariableName)
             kNot   -> return codegen.icmpNe(args[0]!!, kTrue,    tmpVariableName)
             else -> {
-                TODO()
+                TODO(descriptor.name.toString())
             }
         }
     }
@@ -478,6 +481,23 @@ internal class CodeGeneratorVisitor(val context: Context) : IrElementVisitorVoid
 
     //-------------------------------------------------------------------------//
 
+    private fun evaluateOperatorEqeqeq(callee: IrBinaryPrimitiveImpl,
+                                       arg0: LLVMOpaqueValue, arg1: LLVMOpaqueValue,
+                                       tmpVariableName: String):LLVMOpaqueValue {
+
+        val arg0Type = callee.argument0.type
+        val arg1Type = callee.argument1.type
+
+        assert (arg0Type == arg1Type)
+
+        return when {
+            KotlinBuiltIns.isPrimitiveType(arg0Type) -> TODO()
+            else -> codegen.icmpEq(arg0, arg1, tmpVariableName)
+        }
+    }
+
+    //-------------------------------------------------------------------------//
+
     private fun generateWhenCase(branch: IrBranch, bbNext: LLVMOpaqueBasicBlock?, bbExit: LLVMOpaqueBasicBlock?) {
         if (isUnconditional(branch)) {                                               // It is the "else" clause.
             evaluateExpression(codegen.newVar(), branch.result)                      // Generate clause body.