diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp index c340da4a2b2..1caa591f587 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -647,6 +647,10 @@ void PassManagerBuilder::populateModulePassManager( if (MergeFunctions) MPM.add(createMergeFunctionsPass()); + // LoopSink pass sinks instructions hoisted by LICM, which serves as a + // canonicalization pass that enables other optimizations. As a result, + // LoopSink pass needs to be a very late IR pass to avoid undoing LICM + // result too early. MPM.add(createLoopSinkPass()); // Get rid of LCSSA nodes. MPM.add(createInstructionSimplifierPass()); |
