forked from OSchip/llvm-project
a684a99441
This patch adds logic to detect reductions across the inner and outer loop by following the incoming values of PHI nodes in the outer loop. If the incoming values take part in a reduction in the inner loop or come from outside the outer loop, we found a reduction spanning across inner and outer loop. With this change, ~10% more loops are interchanged in the LLVM test-suite + SPEC2006. Fixes https://bugs.llvm.org/show_bug.cgi?id=30472 Reviewers: mcrosier, efriedma, karthikthecool, davide, hfinkel, dmgreen Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D43245 llvm-svn: 346438 |
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| .. | ||
| call-instructions.ll | ||
| currentLimitation.ll | ||
| debuginfo.ll | ||
| inner-only-reductions.ll | ||
| interchange-flow-dep-outer.ll | ||
| interchange-insts-between-indvar.ll | ||
| interchange-no-deps.ll | ||
| interchangeable.ll | ||
| lcssa.ll | ||
| loop-interchange-optimization-remarks.ll | ||
| not-interchanged-dependencies-1.ll | ||
| not-interchanged-loop-nest-3.ll | ||
| not-interchanged-tightly-nested.ll | ||
| outer-only-reductions.ll | ||
| phi-ordering.ll | ||
| profitability.ll | ||
| reductions-across-inner-and-outer-loop.ll | ||