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Debugging the JIT compiler Hotspot detection for ARM64

The other day we were working on the compiler detection of hotspots, originally implemented by Clément Béra during his PhD thesis. In Sista, hotspot detection is implemented as a countdown that looks like the following: the counter is loaded in a register, decremented and then a jump if carry detects if the substraction underflowed. WeContinue reading “Debugging the JIT compiler Hotspot detection for ARM64”

Advanced stepping and custom debugging actions in the new Pharo debugger

In this article, we describe the new advanced stepping menu available in the debugger. These advanced steps provide convenient and automated debugging actions to help you debug your programs. We will see how to build and add new advanced steps, and how to extend the debugger toolbar with your own customized debugging menus. Advanced stepsContinue reading “Advanced stepping and custom debugging actions in the new Pharo debugger”

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