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arm64: Support less-than-64-bit integers in Bitrev, Clz, Cls, and Popcnt instructions. #1528

Merged
merged 1 commit into from
Apr 18, 2020
Merged

arm64: Support less-than-64-bit integers in Bitrev, Clz, Cls, and Popcnt instructions. #1528

merged 1 commit into from
Apr 18, 2020

Commits on Apr 17, 2020

  1. arm64: Support less-than-64-bit integers in Bitrev, Clz, Cls, and Pop… 

    …cnt instructions.

Includes a temporary bugfix for popcnt with 32-bit operand. The popcnt
issue was initially identified by Benjamin Bouvier <public@benj.me>, and
the root cause was debugged by Joey Gouly <joey.gouly@arm.com>. This
patch is simply a quick fix that zero-extends the operand to 64 bits;
Joey plans to contribute a more permanent fix shortly (tracked in
 bytecodealliance#1537).
    @cfallin
    cfallin committed Apr 17, 2020
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