From 60a400eeb03873f26145fb75880d62bea7d01d5c Mon Sep 17 00:00:00 2001
From: jangko <jangko128@gmail.com>
Date: Thu, 17 Dec 2015 10:14:48 +0700
Subject: [PATCH] fixed compile time `excl ` cause SIGSEGV #3639

---
 compiler/vm.nim    |  2 +-
 tests/vm/texcl.nim | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 tests/vm/texcl.nim

diff --git a/compiler/vm.nim b/compiler/vm.nim
index 0e63daf895..7207ff2239 100644
--- a/compiler/vm.nim
+++ b/compiler/vm.nim
@@ -611,7 +611,7 @@ proc rawExecute(c: PCtx, start: int, tos: PStackFrame): TFullReg =
       addSon(regs[ra].node, r.copyTree)
     of opcExcl:
       decodeB(rkNode)
-      var b = newNodeIT(nkCurly, regs[rb].node.info, regs[rb].node.typ)
+      var b = newNodeIT(nkCurly, regs[ra].node.info, regs[ra].node.typ)
       addSon(b, regs[rb].regToNode)
       var r = diffSets(regs[ra].node, b)
       discardSons(regs[ra].node)
diff --git a/tests/vm/texcl.nim b/tests/vm/texcl.nim
new file mode 100644
index 0000000000..4ccfd6bfa0
--- /dev/null
+++ b/tests/vm/texcl.nim
@@ -0,0 +1,27 @@
+discard """
+  output: '''false'''
+"""
+
+import macros
+
+type
+  nlOptions = enum
+    nloNone
+    nloDebug
+
+var nlOpts {.compileTime.} = {nloDebug}
+
+proc initOpts(): set[nlOptions] =
+  result.incl nloDebug
+  result.incl nloNone
+  result.excl nloDebug
+  
+const cOpts = initOpts()
+
+macro nlo(): stmt =
+  nlOpts.incl(nloNone)
+  nlOpts.excl(nloDebug)
+  result = newEmptyNode()
+
+nlo()
+echo nloDebug in cOpts
\ No newline at end of file