diff options
Diffstat (limited to 'src/passes/pass.cpp')
| -rw-r--r-- | src/passes/pass.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/passes/pass.cpp b/src/passes/pass.cpp index f2463691a..89467899c 100644 --- a/src/passes/pass.cpp +++ b/src/passes/pass.cpp @@ -83,6 +83,7 @@ void PassRegistry::registerPasses() { registerPass("instrument-memory", "instrument the build with code to intercept all loads and stores", createInstrumentMemoryPass); registerPass("memory-packing", "packs memory into separate segments, skipping zeros", createMemoryPackingPass); registerPass("merge-blocks", "merges blocks to their parents", createMergeBlocksPass); + registerPass("merge-locals", "merges locals when beneficial", createMergeLocalsPass); registerPass("metrics", "reports metrics", createMetricsPass); registerPass("nm", "name list", createNameListPass); registerPass("optimize-instructions", "optimizes instruction combinations", createOptimizeInstructionsPass); @@ -140,6 +141,10 @@ void PassRunner::addDefaultFunctionOptimizationPasses() { add("vacuum"); // previous pass creates garbage add("reorder-locals"); add("remove-unused-brs"); // simplify-locals opens opportunities for optimizations + // if we are willing to work hard, also optimize copies before coalescing + if (options.optimizeLevel >= 3 || options.shrinkLevel >= 2) { + add("merge-locals"); // very slow on e.g. sqlite + } add("coalesce-locals"); add("simplify-locals"); add("vacuum"); // previous pass creates garbage |