[QUESTION] Extended Asm and red zone

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To: gcc-help@xxxxxxxxxxx
Subject: [QUESTION] Extended Asm and red zone
From: Commeownist <commeownist@xxxxxxxxx>
Date: Fri, 17 Sep 2021 23:12:07 +0300
User-agent: Evolution 3.40.4

Is it safe to push onto the stack in an Extended Asm block if `-mred-
zone` flag is specified (red zone is enabled)? Does GCC assume that any
`asm` block invalidates red zone? Is some additional setup required to
inform the compiler about it?

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- Re: [QUESTION] Extended Asm and red zone
  - From: Segher Boessenkool

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