From 92037b5e7c4979584624aaa50f45f9309dd20c95 Mon Sep 17 00:00:00 2001
From: Basile Burg <basile.b@gmx.com>
Date: Sat, 24 Dec 2016 19:55:33 +0100
Subject: [PATCH] prevent possible segfault with instructions without params,
 like RDTSC

---
 src/analysis/unused_label.d | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/analysis/unused_label.d b/src/analysis/unused_label.d
index 59fd817..fe9ddad 100644
--- a/src/analysis/unused_label.d
+++ b/src/analysis/unused_label.d
@@ -101,7 +101,7 @@ final class UnusedLabelCheck : BaseAnalyzer
 		if (instr.identifierOrIntegerOrOpcode.text.length)
 			jmp = instr.identifierOrIntegerOrOpcode.text[0] == 'j';
 
-		if (!jmp || instr.operands.operands.length != 1)
+		if (!jmp || !instr.operands || instr.operands.operands.length != 1)
 			return;
 
 		const AsmExp e = cast(AsmExp) instr.operands.operands[0];