Diff mode

runner: ariselab-64c-docker
baseline: llvm/llvm-project@8f9ef4b
patch: llvm/llvm-project#167771
sha256: d9e2a1e483f2ac737fe6b04cce39282f98ad4f2cae8fda32b872513484db7805
commit: 92858bf

145 files changed, 93096 insertions(+), 93243 deletions(-)

Improvements:
  simplifycfg.NumBitMaps 2245 -> 2246 +0.04%
  simplifycfg.NumLookupTablesHoles 2393 -> 2394 +0.04%
  correlated-value-propagation.NumNonNull 10870047 -> 10874432 +0.04%
  mem2reg.NumDeadAlloca 1963403 -> 1964154 +0.04%
  sroa.NumVectorized 697857 -> 697970 +0.02%
  simple-loop-unswitch.NumCostMultiplierSkipped 17240 -> 17242 +0.01%
  correlated-value-propagation.NumNUW 571062 -> 571121 +0.01%
  correlated-value-propagation.NumAnd 44492 -> 44496 +0.01%
  instcombine.NumPHIsOfInsertValues 26429 -> 26431 +0.01%
  constmerge.NumIdenticalMerged 15670 -> 15671 +0.01%
Regressions:
  bdce.NumRemoved 384283 -> 383488 -0.21%
  vector-combine.NumVecLoad 4291 -> 4288 -0.07%
  gvn.NumGVNLoad 1320135 -> 1319296 -0.06%
  instcombine.NumConstProp 168277 -> 168176 -0.06%
  mem2reg.NumLocalPromoted 549700 -> 549535 -0.03%
  licm.NumBOAssociationsHoisted 3515 -> 3514 -0.03%
  sroa.NumLoadsPredicated 14459 -> 14456 -0.02%
  licm.NumLoadStorePromoted 62000 -> 61989 -0.02%
  local.NumPHICSEs 186111 -> 186080 -0.02%
  gvn.NumGVNSimpl 4415379 -> 4414646 -0.02%

+18 openvdb/Prune.ll
+2 open3d/Geometry3D.ll
+0 assimp/zip.ll
+0 ceres/block_sparse_matrix.ll
+0 cmake/cmComputeLinkDepends.ll
+0 faiss/Clustering.ll
+0 g2o/edge_project_xyz.ll
+0 g2o/optimizable_graph.ll
+0 g2o/optimization_algorithm_dogleg.ll
+0 g2o/slam2d_linear.ll
+0 hdf5/sio_perf.ll
+0 libigl/eigs.ll
+0 llvm/MsgPackDocument.ll
+0 meshlab/edit_align.ll
+0 meshlab/shell.ll
+0 nlohmann_json/diag_on.ll
+0 nori/accel.ll
+0 ockam-rs/1411u8drt798uxi8.ll
+0 opencv/gfluidbackend.ll
+0 pbrt-v4/integrator.ll
+0 pbrt-v4/integrators.ll
+0 php/zip.ll
+0 proj/adams.ll
+0 proj/airocean.ll
+0 proj/datum_set.ll
+0 proj/geod_set.ll
+0 proj/helmert.ll
+0 proj/horner.ll
+0 proj/info.ll
+0 proj/tmerc.ll
+0 quickjs/qjsc.ll
+0 quickjs/quickjs-libc.ll
+0 typst-rs/2d3c2n5y91mtl0x0.ll
+0 typst-rs/d6l9ieo9tcw33dn.ll
+0 wasmtime-rs/4ab4rlryc5h7bf6z.ll
-2 open3d/VoxelGrid.ll
-30 proj/param.ll
-31 typst-rs/2i78fvbm4wocuesi.ll

Here's a concise summary of the major changes in this LLVM IR diff:

1. Phi Node Predecessor Updates: Multiple phi instructions had their predecessor block references updated (e.g., .thread428 → .thread426, %72 → %73). These are likely due to control-flow restructuring or loop transformations, ensuring phi nodes correctly reference incoming edges.

2. Vectorization & Scalar Replacement Improvements: Several functions (e.g., EdgeSE3ProjectXYZ::linearizeOplusEv, LocalIsometry) replaced scalar-to-vector bitcasts and shuffles with direct insertelement/shufflevector patterns using precomputed vector elements—improving clarity and potentially enabling better optimization.

3. Loop Header & Critical Edge Adjustments: Loop induction variables and critical edge targets were updated across multiple files (e.g., %.lr.ph75 → %.lr.ph76, %.lr.ph149.i → %.lr.ph148.i). This reflects loop canonicalization or unrolling changes affecting loop entry points and back-edges.

4. Memory Access & Store Type Corrections: In ockam-rs and open3d, <4 x i8> loads/stores were replaced with i32, and double-to-<2 x double> conversions were refined (e.g., using extractelement + fmul instead of bitcast + shuffle). These align types with actual memory layout and improve codegen safety.

5. Exception Handling & Landing Pad Cleanup: PHI nodes in landing pad blocks (e.g., %.pn222, %.pn23.pn) were updated to reference correct predecessor blocks after exception edge rewrites—ensuring accurate unwind state propagation during stack unwinding.

All changes are mechanical and correctness-preserving, consistent with backend optimizations like loop rotation, SROA refinement, vectorizer improvements, and CFG simplification.

model: qwen-plus-latest
CompletionUsage(completion_tokens=416, prompt_tokens=113219, total_tokens=113635, completion_tokens_details=None, prompt_tokens_details=None)