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| author | Artur Gainullin <artur.gainullin@intel.com> | 2018-04-11 10:29:37 +0000 |
|---|---|---|
| committer | Artur Gainullin <artur.gainullin@intel.com> | 2018-04-11 10:29:37 +0000 |
| commit | d928201ac5ef2d61492720bd0f7323f225ffdb3e (patch) | |
| tree | ee951c76977422f055ec8b0d1b33c0ef551ebae5 /llvm/tools/llvm-mca/RetireControlUnitStatistics.cpp | |
| parent | 057f5a12594a26f9f2fd6d69446df517e14ec52f (diff) | |
| download | bcm5719-llvm-d928201ac5ef2d61492720bd0f7323f225ffdb3e.tar.gz bcm5719-llvm-d928201ac5ef2d61492720bd0f7323f225ffdb3e.zip | |
Eliminate a bitwise 'not' op of 'not' min/max by inverting the min/max.
Bitwise 'not' of the min/max could be eliminated in the pattern:
%notx = xor i32 %x, -1
%cmp1 = icmp sgt[slt/ugt/ult] i32 %notx, %y
%smax = select i1 %cmp1, i32 %notx, i32 %y
%res = xor i32 %smax, -1
https://rise4fun.com/Alive/lCN
Reviewers: spatel
Reviewed by: spatel
Subscribers: a.elovikov, llvm-commits
Differential Revision: https://reviews.llvm.org/D45317
llvm-svn: 329791
Diffstat (limited to 'llvm/tools/llvm-mca/RetireControlUnitStatistics.cpp')
0 files changed, 0 insertions, 0 deletions
