Re: [PATCH v2] config/ppc: fix gcc "internal compiler error" message for p10

[Thomas Monjalon <thomas@monjalon.net>]

27/06/2023 23:03, David Christensen:
> Building DPDK with gcc 11.3.x for the power10 instruction set may
> generate the following error:
> 
> ../drivers/mempool/cnxk/cnxk_mempool_ops.c
> during RTL pass: final
> ../drivers/mempool/cnxk/cnxk_mempool_ops.c:
>   In function ‘cnxk_mempool_alloc’:
> ../drivers/mempool/cnxk/cnxk_mempool_ops.c:124:1:
>   internal compiler error: output_operand: invalid expression as operand
>   124 | }
>       | ^
> Please submit a full bug report,
> with preprocessed source if appropriate.
> ...
> ninja: build stopped: subcommand failed.
> 
> The same issue is not encountered when building with gcc 11.4 or
> later, where the compiler automatically adds the option
> "-mno-block-ops-vector-pair" when building for power10 which
> is intended as a code optimization and also effectively avoids
> the compiler bug displayed.
> 
> Modify the meson.build file for ppc and manually set the flag when
> building for power10 with gcc less than 11.4.
> 
> Bugzilla ID: 1251
> 
> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
> Tested-by: Thinh Tran <thinhtr@linux.vnet.ibm.com>

Applied, thanks.

Note: IBM POWER support is still marked as alpha.
Would you like to work on its status?