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| author | Ana Pazos <apazos@codeaurora.org> | 2013-12-24 00:47:29 +0000 |
|---|---|---|
| committer | Ana Pazos <apazos@codeaurora.org> | 2013-12-24 00:47:29 +0000 |
| commit | 25f4d51bcb628434a8c61d007fad0f4c86480795 (patch) | |
| tree | 0be76902e19c5b6b7e3e9c2deea1c2bfcb83d0cb /docs | |
| parent | f5bfe97875de91fa9eabc23b0e8abb76965d1aa7 (diff) | |
| download | llvm-25f4d51bcb628434a8c61d007fad0f4c86480795.tar.gz llvm-25f4d51bcb628434a8c61d007fad0f4c86480795.tar.bz2 llvm-25f4d51bcb628434a8c61d007fad0f4c86480795.tar.xz | |
[AArch64] Check fmul node single use in fused multiply patterns
Check for single use of fmul node in fused multiply patterns
to allow generation of fused multiply add/sub instructions.
Otherwise fmul operation ends up being repeated more than
once which does not help peformance on targets with
only one MAC unit, as for example cortex-a53.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197929 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions