From: Jakub Staszak <jstaszak@apple.com>
Date: Sun, 10 Jul 2011 02:00:16 +0000 (+0000)
Subject: Don't analyze block if it's not considered for ifcvt anymore.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=2b33f4cbad43dcaca944d02a6ea67991ff9db9cf;p=oota-llvm.git

Don't analyze block if it's not considered for ifcvt anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134856 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/IfConversion.cpp b/lib/CodeGen/IfConversion.cpp
index c918bf63120..8cf68d66025 100644
--- a/lib/CodeGen/IfConversion.cpp
+++ b/lib/CodeGen/IfConversion.cpp
@@ -751,8 +751,9 @@ IfConverter::BBInfo &IfConverter::AnalyzeBlock(MachineBasicBlock *BB,
 
   ScanInstructions(BBI);
 
-  // Unanalyzable or ends with fallthrough or unconditional branch.
-  if (!BBI.IsBrAnalyzable || BBI.BrCond.empty()) {
+  // Unanalyzable or ends with fallthrough or unconditional branch, or if is not
+  // considered for ifcvt anymore.
+  if (!BBI.IsBrAnalyzable || BBI.BrCond.empty() || BBI.IsDone) {
     BBI.IsBeingAnalyzed = false;
     BBI.IsAnalyzed = true;
     return BBI;