From c5d6e8edb464c2e6871ce782540503d630c19516 Mon Sep 17 00:00:00 2001
From: Mikhail Glukhikh <Mikhail.Glukhikh@jetbrains.com>
Date: Wed, 27 Jan 2016 12:01:07 +0300
Subject: [PATCH] More detailed error message for EA-77641

---
 .../org/jetbrains/kotlin/cfg/pseudocode/PseudocodeImpl.kt | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/PseudocodeImpl.kt b/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/PseudocodeImpl.kt
index 1c3cc009daa..c4856c5f84f 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/PseudocodeImpl.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/PseudocodeImpl.kt
@@ -58,8 +58,12 @@ class PseudocodeImpl(override val correspondingElement: KtElement) : Pseudocode
         }
 
         fun resolveToInstruction(): Instruction {
-            assert(targetInstructionIndex != null)
-            return mutableInstructionList[targetInstructionIndex!!]
+            val index = targetInstructionIndex
+            if (index == null || index >= mutableInstructionList.size) {
+                error("resolveToInstruction: incorrect index $index for label $name " +
+                      "in subroutine ${correspondingElement.text} with instructions $mutableInstructionList")
+            }
+            return mutableInstructionList[index]
         }
 
         fun copy(newLabelIndex: Int): PseudocodeLabel {