hg: jdk/sandbox: 8244433: Remove saving of RSP in Assembler::pusha_uncached()

[chris.hegarty at oracle.com]

Changeset: 1ba9a9a3f948
Author:    chagedorn
Date:      2020-05-18 12:32 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/1ba9a9a3f948

8244433: Remove saving of RSP in Assembler::pusha_uncached()
Summary: Remove move instruction to save the actual value of RSP in Assembler::pusha_uncached() on x86.
Reviewed-by: eosterlund, thartmann, kvn

! src/hotspot/cpu/x86/assembler_x86.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.cpp
! src/hotspot/cpu/x86/methodHandles_x86.cpp