[llvm-dev] Wide load/store optimization question

陳韋任 via llvm-dev llvm-dev at lists.llvm.org
Tue Jun 20 05:54:18 PDT 2017


Hi James,

​  Sorry for the bothering. On previous discussion on
http://lists.llvm.org/pipermail/llvm-dev/2017-June/114248.html ,
I suggest others refering to Sparc implementation, lowering load i64 to
load v2i32.​ But I find one problem recently,
it's about bitfield access. If one struct with bitfield has 64-bit size,
the bitfield access generates a lot load/store
instructions, which come from load v2i32. Are you aware of such problem?

Thanks.

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Homepage: https://people.cs.nctu.edu.tw/~chenwj
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