[jdk11u-dev] RFR: 8280526: x86_32 Math.sqrt performance regression with -XX:UseSSE={0,1}

[Aleksey Shipilev]

Follow up to JDK-8279076 backport.

Additional testing:
 - [x] The test from JDK-8279076 still passes

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Depends on: https://git.openjdk.java.net/jdk11u-dev/pull/819

Commit messages:
 - Backport a24f44d17de586c72c8343f8891e72ad8a514597

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/820/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=820&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8280526
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/820.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/820/head:pull/820

PR: https://git.openjdk.java.net/jdk11u-dev/pull/820