commit 3875657ee5eef43707b8481143df7630b689432b
author Chris Lattner <sabre@nondot.org> Mon Oct 13 20:32:04 2003 +0000
committer Chris Lattner <sabre@nondot.org> Mon Oct 13 20:32:04 2003 +0000
tree 57fb9bf163189dbea3ba9fbdca0d0e88335f76a1
parent d12fa6c1045c80e314dbc3be3a2d7b45652a62ad

Do not allow fallthroughs in switch statements.  This fixes PR37,
253.perlbmk, and test/Programs/SingleSource/UnitTests/2003-10-13-SwitchTest.c!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9101 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/CBackend/Writer.cpp

diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index dea97e9..a3607be 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -1057,7 +1057,9 @@
     Out << ";   /* for PHI node */\n";
   }
 
-  if (CurBB->getNext() != Succ || isa<InvokeInst>(CurBB->getTerminator())) {
+  if (CurBB->getNext() != Succ ||
+      isa<InvokeInst>(CurBB->getTerminator()) ||
+      isa<SwitchInst>(CurBB->getTerminator())) {
     Out << std::string(Indent, ' ') << "  goto ";
     writeOperand(Succ);
     Out << ";\n";