[llvm-dev] About CodeGen quality

[陳韋任 via llvm-dev]

2017-06-17 3:19 GMT+08:00 Hiroshi 7 Inoue <INOUEHRS at jp.ibm.com>:

> For this specific case, modifying source code (or the frontend) to use a
> struct instead of
> bitfield seems to be an easy way since all sizes of bitfields are 8 bits.
> But you cannot?
> For general cases, you may want to enhance backend to emit
> bitextract/bitset.
>
​The original test case was modified as it is, the bitfield are not always
8 bits.
And sure, emitting bitextract/bitset will improve the code quality.​

​Regards,
chenwj

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