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authorBill Wendling <isanbard@gmail.com>2011-08-15 20:10:51 +0000
committerBill Wendling <isanbard@gmail.com>2011-08-15 20:10:51 +0000
commit187b1924a4b68350a6492b116db0fb19c659222f (patch)
treeeb19b13486576817b875321fccd8a053acd0c0fd /lib/Transforms/Utils
parent5df7ef6cdbdaaa6bf3bf12b959557a44fbf250a6 (diff)
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The "landingpad" instruction will never be "trivially" dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137642 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils')
-rw-r--r--lib/Transforms/Utils/Local.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 60dc15d642..be0aa82500 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -226,6 +226,10 @@ bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions) {
bool llvm::isInstructionTriviallyDead(Instruction *I) {
if (!I->use_empty() || isa<TerminatorInst>(I)) return false;
+ // We don't want the landingpad instruction removed by anything this general.
+ if (isa<LandingPadInst>(I))
+ return false;
+
// We don't want debug info removed by anything this general, unless
// debug info is empty.
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I)) {