[PATCH] D43108: Support for the mno-stack-arg-probe flag

Ruslan Nikolaev via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Wed Feb 28 20:10:24 PST 2018


nruslan added a comment.

@aemerson : I am not 100% sure, but I think you are talking about different flag. This commit is for supporting a flag to disable stack probes (identical flag can be found in MinGW), it basically only applies to PE/COFF (Windows) targets. It can be useful to compile UEFI code. By default, Windows will use check probes of 4K in x86. A related stack-probe-size allows to vary the size of stack probes. This one completely disables them.

By default, stack probes are enabled (i.e., -mstack-arg-probe is the default behavior) and have the size of 4K in x86.


Repository:
  rC Clang

https://reviews.llvm.org/D43108





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