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Re: [RFC PATCH] tcg/optimize: only read val after const check


From: Philippe Mathieu-Daudé
Subject: Re: [RFC PATCH] tcg/optimize: only read val after const check
Date: Wed, 9 Feb 2022 12:55:50 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.5.1

On 9/2/22 12:21, Alex Bennée wrote:
valgrind pointed out that arg_info()->val can be undefined which will
be the case if the arguments are not constant. The ordering of the
checks will have ensured we never relied on an undefined value but for
the sake of completeness re-order the code to be clear.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
  tcg/optimize.c | 8 ++++----
  1 file changed, 4 insertions(+), 4 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>




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