From 627de1ce502ce23dc0ef21a69c910a20547aa5c7 Mon Sep 17 00:00:00 2001
From: Tim Foley <tfoleyNV@users.noreply.github.com>
Date: Mon, 23 Apr 2018 10:37:24 -0700
Subject: Fix successor computation for `switch` instruction (#520)

Fixes #519

The code was leaving out the `default` label from the successor list,
which would break any passes that require an accurate CFG (with the big
one right now being the SSA-formation pass).
---
 source/slang/ir.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'source')

diff --git a/source/slang/ir.cpp b/source/slang/ir.cpp
index a75a02ca7..2b0e19a0c 100644
--- a/source/slang/ir.cpp
+++ b/source/slang/ir.cpp
@@ -312,7 +312,7 @@ namespace Slang
 
         case kIROp_switch:
             // switch <val> <break> <default> <caseVal1> <caseBlock1> ...
-            begin = operands + 4;
+            begin = operands + 2;
 
             // TODO: this ends up point one *after* the "one after the end"
             // location, so we should really change the representation
-- 
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