RFR: 8350940: RISC-V: remove unnecessary assert_different_registers in minmax_fp [v4]

[Hamlin Li]

> Hi,
> Can you help to review this simple change?
> Seems to me it's not necessary to assert_different_registers between dst/src1/src2 in minmax_fp.
> 
> Thanks

Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:

  keep cr/t1 in effect

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/23842/files
  - new: https://git.openjdk.org/jdk/pull/23842/files/f6fba6bf..a5d9782c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23842&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23842&range=02-03

  Stats: 4 lines in 1 file changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/23842.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23842/head:pull/23842

PR: https://git.openjdk.org/jdk/pull/23842