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Re: [Qemu-devel] [PATCH v3 03/10] target/ppc: support for 32-bit carry a

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH v3 03/10] target/ppc: support for 32-bit carry and overflow
Date: Fri, 24 Feb 2017 09:34:32 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0

On 02/23/2017 05:40 PM, Nikunj A Dadhania wrote:
Richard Henderson <address@hidden> writes:
These functions are becoming quite large.  Are they performance critical enough
that they need to stay as inline code, or should they be moved to helpers and
share code with cpu_read/write_xer?

Just to boot to login prompt, these are the numbers for gen_read/write_xer:

helper_myprint - rd_count 231103, wr_count 68897

And it keeps on incrementing, maybe scope of optimization here.

That's not very large considering the total number of instructions executed during a boot to prompt.

Thoughts, David?


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