[PATCH] D32998: [SROA] enable splitting for non-whole-alloca loads and stores
Hiroshi Inoue via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jun 15 06:46:30 PDT 2017
inouehrs added a comment.
I conducted more performance measurements.
Overall, I did not find significant degradetions or improvements except for the iterotor example above.
tcmalloc (on ppc64le)
This patch makes additional splitting but no visible changes in malloc_bench score
gipfeli (on ppc64le)
This patch makes additional splitting in the benchmark harness (for istreambuf_iterator) but not in compressor/decompressor.
snappy (on ppc64le)
This patch makes additional splitting but no visible changes in snappy-unittest score
SPECCPU2006 (on x86_64)
No additional splitting observed in 12 out of 19 C/C++ benchmarks.
Even for benchmarks with additional splitting the changes in the score is within range of fluctuation.
SPECINT (5) -0.04%
SPECFP (2) 0.04%
TOTAL (7) -0.02%
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