kpyzhov 095c48fdf3 [AMDGPU] Use "hostcall" module flag instead of searching for ockl_hostcall_internal() declaration. ...

The current way to detect hostcalls by looking for "ockl_hostcall_internal()" function in the module seems to be not reliable enough. The LTO may rename the "ockl_hostcall_internal()" function when an application is compiled with "-fgpu-rdc", and MetadataStreamer pass to fail to detect hostcalls, therefore it does not set the "hidden_hostcall_buffer" kernel argument.
This change adds a new module flag: hostcall that can be used to detect whether GPU functions use host calls for printf.

Differential revision: https://reviews.llvm.org/D110337

2021-10-05 09:56:04 -04:00

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