Displaying 2 results from an estimated 2 matches for "vcvtsi2sd".
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cvtsi2sd
2011 Mar 22
0
[LLVMdev] sitofp inst selection in x86/AVX target [PR9473]
Hello LLVMer's
I am now trying to fix a bug PR9473.
sitofp instruction in LLVM IR is converted to vcvtsi2sd(also applied
to vcvtsi2ss case) for x86/AVX backend, but vcvtsi2sd is somewhat odd
instruction format.
VCVTSI2SD xmm1, xmm2, r/m32
VCVTSI2SD xmm1, xmm2, r/m64
bits(127:64) of xmm2 is copied to corresponding bits of xmm1, thus in
many case xmm1 and xmm2 could be same register.
Currently, the defi...
2011 Jun 01
4
[LLVMdev] AVX Status?
Hi,
The last time the AVX backend was mentioned on this list seems to be
from November 2010, so I would like to ask about the current status. Is
anybody (e.g. at Cray?) still actively working on it?
I have tried both LLVM 2.9 final and the latest trunk, and it seems like
some trivial stuff is already working and produces nice code for code
using <8 x float>.
Unfortunately, the backend