[PATCH] D79589: [WIP] syndicate code generation between dynamic alloca and static alloca during stack clash probing

[serge via Phabricator via llvm-commits]

serge-sans-paille added a comment.



> All the callee-saved registers are added as live-in on the entry block, of which most are saved (and killed) immediately on SystemZ. The function argument registers however are also live-in and as well live past the stack-probing loop. I found it most convenient to make those argument registers in particular live-in after the probing by recomputing the liveness...

I've got no prior knowledge of SystemZ, so pardon the seemingly stupid question, but how does the live-in of the entryblock impacts the Live-in of the probing loop?


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https://reviews.llvm.org/D79589