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(parent: 64ce964) | patch
For targets with FABS/FNEG support, lower copysign to an integer load,
authorChris Lattner <sabre@nondot.org>
Mon, 13 Mar 2006 06:08:38 +0000 (06:08 +0000)
committerChris Lattner <sabre@nondot.org>
Mon, 13 Mar 2006 06:08:38 +0000 (06:08 +0000)
commit8f4191d61978529e9e9d7ddc24dbcd528ef7dd4c
treef69c3ba4b799d332131cf718787f70d13b277da7tree | snapshot
parent64ce964673ca5c71f46933d8699aa557fbc5f15acommit | diff
For targets with FABS/FNEG support, lower copysign to an integer load,
a select and FABS/FNEG.

This speeds up a trivial (aka stupid) copysign benchmark I wrote from 6.73s
to 2.64s, woo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26723 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors