[PATCH] Use rsqrt (X86) to speed up reciprocal square root calcs (PR20900)
Sanjay Patel
spatel at rotateright.com
Fri Oct 24 10:12:55 PDT 2014
Closed by commit rL220570 (authored by @spatel).
REPOSITORY
rL LLVM
http://reviews.llvm.org/D5658
Files:
llvm/trunk/include/llvm/Target/TargetLowering.h
llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h
llvm/trunk/lib/Target/X86/X86.td
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
llvm/trunk/lib/Target/X86/X86ISelLowering.h
llvm/trunk/lib/Target/X86/X86Subtarget.cpp
llvm/trunk/lib/Target/X86/X86Subtarget.h
llvm/trunk/test/CodeGen/X86/sqrt-fastmath.ll
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