The Return of the Frame Pointers
Brendan Gregg
MARCH 16, 2024
This technique saves two instructions in the prologue and epilogue and makes one additional general-purpose register (%rbp) available." I ended up developing a fix for the JVM c2 compiler which Oracle reworked and added as the -XX:+PreserveFramePointer option in JDK8u60 (see my Java in Flames post for details [ PDF ]).
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