[llvm-commits] CVS: llvm/lib/Transforms/Scalar/IndVarSimplify.cpp

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

IndVarSimplify.cpp updated: 1.44 -> 1.45

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Log message:

Fix for PR185 & IndVarsSimplify/2003-12-15-Crash.llx


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Diffs of the changes:  (+9 -0)

Index: llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
diff -u llvm/lib/Transforms/Scalar/IndVarSimplify.cpp:1.44 llvm/lib/Transforms/Scalar/IndVarSimplify.cpp:1.45
--- llvm/lib/Transforms/Scalar/IndVarSimplify.cpp:1.44	Wed Dec 10 14:43:04 2003
+++ llvm/lib/Transforms/Scalar/IndVarSimplify.cpp	Mon Dec 15 11:34:02 2003
@@ -26,6 +26,7 @@
 #include "Support/Debug.h"
 #include "Support/Statistic.h"
 #include "Support/STLExtras.h"
+#include <algorithm>
 using namespace llvm;
 
 namespace {
@@ -206,6 +207,14 @@
           PHIOps.insert(PHIOps.end(), MaybeDead->op_begin(),
                         MaybeDead->op_end());
           MaybeDead->getParent()->getInstList().erase(MaybeDead);
+          
+          // Erase any duplicates entries in the PHIOps list.
+          std::vector<Value*>::iterator It =
+            std::find(PHIOps.begin(), PHIOps.end(), MaybeDead);
+          while (It != PHIOps.end()) {
+            PHIOps.erase(It);
+            It = std::find(PHIOps.begin(), PHIOps.end(), MaybeDead);
+          }
 
           // Erasing the instruction could invalidate the AfterPHI iterator!
           AfterPHIIt = Header->begin();