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| author | Chris Lattner <sabre@nondot.org> | 2008-11-28 22:50:08 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-11-28 22:50:08 +0000 |
| commit | f3f6a801ccc5b5aeae286d5958b1be426f03e298 (patch) | |
| tree | d9989a123d6d0d81053ee93007b13f92a4ddf71a /llvm/lib | |
| parent | 08f3c005625a8af83dd9d2b05bb8c258cd693d5c (diff) | |
| download | bcm5719-llvm-f3f6a801ccc5b5aeae286d5958b1be426f03e298.tar.gz bcm5719-llvm-f3f6a801ccc5b5aeae286d5958b1be426f03e298.zip | |
don't revisit instructions off the beginning of the block.
llvm-svn: 60221
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp index b48bbeae66b..e6a05b7e90b 100644 --- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp +++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp @@ -132,7 +132,8 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) { // If we deleted a store, reinvestigate this instruction. if (deletedStore) { - --BBI; + if (!isa<TerminatorInst>(BB.begin())) + --BBI; continue; } } @@ -160,7 +161,8 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) { DT.dominates(dep, L))) { DeleteDeadInstruction(S); - --BBI; + if (!isa<TerminatorInst>(BB.begin())) + --BBI; NumFastStores++; MadeChange = true; } else |
