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[RISCV] Support (truncate (smin (smax X, C1), C2)) for vnclipu in combineTruncToVnclip. #93756

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merged 3 commits into from
May 30, 2024
Merged

[RISCV] Support (truncate (smin (smax X, C1), C2)) for vnclipu in combineTruncToVnclip. #93756

merged 3 commits into from
May 30, 2024

Commits on May 30, 2024

  1. [RISCV] Support (truncate (smin (smax X, C1), C2)) for vnclipu in com… 

    …bineTruncToVnclip.

If the smax removed all negative numbers, then we can treat the
smin like a umin.

If the smin and smax are in the other order we can swap them and
use a vnclipu as long as the smax constant is smaller than the
smin constant.

This is based on similar code from X86's detectUSatPattern.
    @topperc
    topperc committed May 30, 2024
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  2. fixup! Rename variables. Update fpclamptosat_vec.ll. Remove FIXMEs

    @topperc
    topperc committed May 30, 2024
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  3. Merge remote-tracking branch 'origin/main' into pr/smin-smax-vnclipu

    @topperc
    topperc committed May 30, 2024
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