[PATCH] D32252: [GVN] Add phi-translate for scalarpre as a temporary solution

[Wei Mi via Phabricator via llvm-commits]

wmi updated this revision to Diff 98361.
wmi added a comment.

I change the DenseMap numberingExpression (mapping from value numbering to GVN::Expression) to std::vector. Although there is still some minor increase but better than before.

400.perlbench	0.81%
401.bzip2	-0.11%
403.gcc	-0.42%
429.mcf	1.58%
433.milc	-0.33%
445.gobmk	0.85%
456.hmmer	0.07%
458.sjeng	-0.42%
462.libquantum	-0.75%
464.h264ref	-1.24%
470.lbm	-0.65%
482.sphinx3	0.44%
998.specrand	0.00%
999.specrand	-1.74%
444.namd	0.28%
447.dealII	1.56%
450.soplex	0.96%
453.povray	-0.02%
471.omnetpp	0.02%
473.astar	0.18%
483.xalancbmk	0.85%


Repository:
  rL LLVM

https://reviews.llvm.org/D32252

Files:
  include/llvm/Transforms/Scalar/GVN.h
  lib/Transforms/Scalar/GVN.cpp
  test/Transforms/GVN/PRE/phi-translate-2.ll
  test/Transforms/GVN/PRE/pre-gep-load.ll
  test/Transforms/GVN/PRE/pre-load.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D32252.98361.patch
Type: text/x-patch
Size: 17220 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20170509/33731fb1/attachment.bin>